Re: [OT] computer performance with jsp/servlets/struts
Dan Allen wrote: I only ask this to see if I can make my life easier. I have a PII 333MHz laptop with 216MB Ram and I am running Tomcat, JDK 1.4.1 and some struts applications. Just now it took ant 6 min 56 sec to reload my application after making changes. If I were to go and get a decent Athlon XP or PIV computer, what should I expect for reload times and compile times for a reasonable size webpage application? This is the one thing that I regret when leaving PHP. I spend close to 1/8 of my day waiting for it to reload once my computer starts swapping to disk. Does anyone else have this issue? Dan Hi. We use tomcat to develop und jetty for our production system ( P4 2,2 GH with Linux). Jetty is much faster, because he can cache the tags. Tomcat is much slower in compiling and working with tags in jsp. Manfred - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: relative path problem
try using an action that gets the relative path then pass that path to the bean maybe On Tuesday 11 March 2003 6:52 am, bobd wrote: > This is a rather silly problem I have been putting off > and now I really need to fix it... > > In my Struts app, bean classes are parsing and writing > XML files on disk. These files are currently being > pulled in using a full directory path! (i.e. > "/usr/local/...) Attempts to use relative paths (from > the location of the bean .class file) have not been > successful. In my view layer, JSPs can use relative > paths just fine. What's the trick? > > thanks, > > -bob > > __ > Do you Yahoo!? > Yahoo! Web Hosting - establish your business online > http://webhosting.yahoo.com > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
switching from non SSL to SSL in struts..
I've got my SSL connector configured in tomcat.. what i want to know is what do i need to do to change to secure page from non secure pages in struts... an example of this would be going from 'shopping cart' to 'checkout'.. is this a configuration issue? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [OT] computer performance with jsp/servlets/struts
Is there any kind of benchmark results table or technical comparation between tomcat, jetty, iplanet, resin...? I've been searching google without success... I need something because "much faster" or "much slower" is not enought for me. Thank you! Manfred Wolff wrote: Dan Allen wrote: I only ask this to see if I can make my life easier. I have a PII 333MHz laptop with 216MB Ram and I am running Tomcat, JDK 1.4.1 and some struts applications. Just now it took ant 6 min 56 sec to reload my application after making changes. If I were to go and get a decent Athlon XP or PIV computer, what should I expect for reload times and compile times for a reasonable size webpage application? This is the one thing that I regret when leaving PHP. I spend close to 1/8 of my day waiting for it to reload once my computer starts swapping to disk. Does anyone else have this issue? Dan Hi. We use tomcat to develop und jetty for our production system ( P4 2,2 GH with Linux). Jetty is much faster, because he can cache the tags. Tomcat is much slower in compiling and working with tags in jsp. Manfred - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: switching from non SSL to SSL in struts..
Oh no! This topic again!! :P Take a look at sslext (sslext.sourceforge.net) or search this mail list for it. hth, Guido. James wrote: I've got my SSL connector configured in tomcat.. what i want to know is what do i need to do to change to secure page from non secure pages in struts... an example of this would be going from 'shopping cart' to 'checkout'.. is this a configuration issue? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: switching from non SSL to SSL in struts..
i found it as you replied.. thanks anyway.. "Guido" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Oh no! This topic again!! :P > > Take a look at sslext (sslext.sourceforge.net) or search this mail list > for it. > > hth, > Guido. > > James wrote: > > I've got my SSL connector configured in tomcat.. what i want to know is what > > do i need to do to change to secure page from non secure pages in struts... > > > > an example of this would be going from 'shopping cart' to 'checkout'.. is > > this a configuration issue? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Message replacement
Hello
Anyone can explain me (for dumbs) how does this replacement works
(Action sample code would be great) and what Java classes are involved?
error.number=The number {0} is greater than {1}
Thank you!
Guido.
-
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Re: switching from non SSL to SSL in struts..
Tiz the url that the browser requests. http or https usually: http is on port 80 https is on port 443 julian James wrote: I've got my SSL connector configured in tomcat.. what i want to know is what do i need to do to change to secure page from non secure pages in struts... an example of this would be going from 'shopping cart' to 'checkout'.. is this a configuration issue? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Struts Faces ea validation XML error
> -Original Message- > From: Craig R. McClanahan [mailto:[EMAIL PROTECTED] > > On Mon, 10 Mar 2003, PILGRIM, Peter, FM wrote: > > > Date: Mon, 10 Mar 2003 17:18:25 - > > From: "PILGRIM, Peter, FM" <[EMAIL PROTECTED]> > > Reply-To: Struts Users Mailing List <[EMAIL PROTECTED]> > > To: "Struts Users Mailing List (E-mail)" > <[EMAIL PROTECTED]> > > Subject: Struts Faces ea validation XML error > > > > After copying all three JSF JAR to struts-faces/WEB-INF, > > and copying commons-logging-1.0.2.jar over WEB-INF/lib > > I got a validation error in the Struts Faces download. > > > > Is the validation XML correct? > > > > I only get errors like this when I forget to include > "/WEB-INF/validation.xml" in my webapps -- can you make sure > that is still > present? > > Craig It is very weird because I have both `/WEB-INF/validation.xml' and `/WEB-INF/validation-rules.xml' in the right place, I also checked the `/WEB-INF/struts-config.xml' to make sure that validator plugin is correctly set. This is how I downloaded the struts-faces.jar ``as is' Something is wrong here. > > org.apache.jasper.JasperException: Depends string "email" > was not found in > > validator-rules.xml. > > void > > > org.apache.jasper.servlet.JspServletWrapper.service(javax.serv > let.http.HttpS > > ervletRequest, javax.servlet.http.HttpServletResponse, boolean) > > JspServletWrapper.java:248 > > void > > > org.apache.jasper.servlet.JspServlet.serviceJspFile(javax.serv > let.http.HttpS > > ervletRequest, javax.servlet.http.HttpServletResponse, > java.lang.String, > > java.lang.Throwable, boolean) > > JspServlet.java:295 > > void > > > org.apache.jasper.servlet.JspServlet.service(javax.servlet.htt > p.HttpServletR > > equest, javax.servlet.http.HttpServletResponse) > > JspServlet.java:241 > > > > ---- > > ---- -- Peter Pilgrim, Struts/J2EE Consultant, RBoS FM, Risk IT Tel: +44 (0)207-375-4923 Visit our Internet site at http://www.rbsmarkets.com This e-mail is intended only for the addressee named above. As this e-mail may contain confidential or privileged information, if you are not the named addressee, you are not authorised to retain, read, copy or disseminate this message or any part of it. The Royal Bank of Scotland plc is registered in Scotland No 90312 Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB Regulated by the Financial Services Authority - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
SSL extension question
I''m using the sslext struts extension to switch from non ssl to ssl.. however i cant seem to get it working. I use the url http://localhost:8080/MyApp to go to the welcome page.. and a couple of pages later i need to switch to Https.. i have the jars in my /lib directory and i've made the following changes to my struts-config.xml what am i missing? --- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [ANN] Struttin' With Struts beta (newbies esp. welcome)
Excellent!!! I will take the tutorial. I am wondering what are you doing for your Data Base, is it JDBC or something else. .V Rick Reumann wrote: I created a web site that walks new Struts users step by step through the development of three VERY simple web applications in three lessons. Each lesson adds a few more features so that they build upon each other yet each stands alone such that if you follow the steps in any lesson you'll have built a very basic application regardless of which lesson you start with. I created these because there seemed to be lacking some more recent "walk through" Struts tutorials geared toward the very new Struts developer. I think real newbies will find them especially useful, but then again I could be way wrong:) I'm considering the site a "beta" because I'm sure there will be some mistakes. If anyone sees something I'm doing in a lesson that is way off (or a very bad practice) please let me know. Some of the stuff I know could be done in a more "best practice" way, but for the sake of trying to also keep the lessons small and simple some ideas weren't included (ie- I didn't use a constants interface for my forward definitions). If anyone wants to contribute, reword, or add anything please let me know. The site is there to help others. I got really lazy in a lot of places and didn't say much about certain things that I would have liked to. Hopefully over time the site will improve. Struttin' with Struts: http://www.reumann.net/do/struts/main - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: switching from non SSL to SSL in struts..
Hello all, I've used sslExt for our web application (for struts 1.0) and now I am facing problem. In out app, there is a need to put some small data into HttpSession for reuse later, the problem is while switching from Http -> Https or vice versa, the data put into HttpSession are lost if web client is Netscape (6.1), It seems that Netscape use different session for HTTP and HTTPs...!!! Meanwhile, our app works well with I.E. Any idea are welcome and appreciated ? > -Original Message- > From: James [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 11, 2003 10:39 AM > To: [EMAIL PROTECTED] > Subject: Re: switching from non SSL to SSL in struts.. > > > i found it as you replied.. > > thanks anyway.. > > > > "Guido" <[EMAIL PROTECTED]> wrote in message > news:[EMAIL PROTECTED] > > Oh no! This topic again!! :P > > > > Take a look at sslext (sslext.sourceforge.net) or search > this mail list > > for it. > > > > hth, > > Guido. > > > > James wrote: > > > I've got my SSL connector configured in tomcat.. what i > want to know is > what > > > do i need to do to change to secure page from non secure pages in > struts... > > > > > > an example of this would be going from 'shopping cart' to > 'checkout'.. > is > > > this a configuration issue? > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] >
Re: struts database application
Thanks for the response Affan and also the suggestion of a message or progress bar while connecting to the database and generating the tree is a good idea. I will get on to incorporating this feature. Paul - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: struts database application
Thanks Marco. I think your right about the left frame displaying the tree needing to be wider I'll get this done. Paul - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [OT] computer performance with jsp/servlets/struts
There were some issues with session serialization which were resolved in the latest nightly builds. You could try disabling session persistence although it would be better to resolve the serialization problems. If I understand correctly, in a low memory production environment those serialization mechanisms have to work. The other issue is that the tomcat manager reload application is 10 times faster (10-20 seconds vs 1-3 seconds on my machine 1.8g, 512mb, w2k) than a stop and start of tomcat. Actually, the first few times I used the reload function it was so fast, I didn't believe it actually worked. Edgar > -Original Message- > From: Dan Allen [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 11, 2003 12:00 AM > To: 'Struts Users Mailing List' > Subject: Re: [OT] computer performance with jsp/servlets/struts > > > Another thing that could be causing the problem. I am using > Ant to reload just the application and not tomcat by using > the manager that comes with Tomcat. I notice that each time > I reload it throws Exception Errors that the sessions could > not be recovered. Whenever I am swapping and exception > errors are thrown, it takes many, many minutes to handle > them. I guess I should work on my tomcat installation > regarding these reloads of applications. Anyone else see > this in the logs? Maybe the reload of applications is not > efficient and panned out yet, since it has to recover all the > objects which were in the session at the time of the reload. > > Dan > > David Graham ([EMAIL PROTECTED]) wrote: > > > P3 1Ghz., 512MB RAM and Tomcat starts in about 10 seconds. > Obviously > > don't > > need to restart Tomcat for JSP changes which load in about > 5 seconds. > > > > David > > > > > > > > >From: Dan Allen <[EMAIL PROTECTED]> > > >Reply-To: "Struts Users Mailing List" > > ><[EMAIL PROTECTED]> > > >To: Struts-User List <[EMAIL PROTECTED]> > > >Subject: [OT] computer performance with jsp/servlets/struts > > >Date: Mon, 10 Mar 2003 22:09:12 -0600 > > > > > >I only ask this to see if I can make my life easier. I have a PII > > >333MHz laptop with 216MB Ram and I am running Tomcat, JDK > 1.4.1 and > > >some struts applications. Just now it took ant 6 min 56 sec to > > >reload my application after making changes. If I were to > go and get > > >a decent Athlon XP or PIV computer, what should I expect > for reload > > >times and compile times for a reasonable size webpage application? > > > > > >This is the one thing that I regret when leaving PHP. I > spend close > > >to 1/8 of my day waiting for it to reload once my computer starts > > >swapping to disk. Does anyone else have this issue? > > > > > >Dan > > -- > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > Daniel Allen, <[EMAIL PROTECTED]> > http://www.mojavelinux.com/ > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > Windows: where do you want your data to disappear to today? > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Problems with multibox and checkbox
Hi Jason! reading through your mail, i got especially attracted on your solution combining XSLT with struts tags. I am currently doing some after-project considerations, having been my first struts project(and also the first for my actual company, hence having no one to having an expertise talk). One action point on my list is the question : "How to control which model elements map to which view elements and vice versa(especially at runtime)." So i would be a great honour for me if you - can write me a few words because of out of what considerations you are using XSLT and struts tags. - devote a second of your precious time to my topic "How to control which model elements map to which view elements and vice versa" - if and how XSLT can help me to come up with a more generic solution. E.g. I would like features as described in struts-layout ( taken from http://struts.application-servers.com/) "Let's image you are running an online shop selling books. There is one jsp to display information about the book (title, author, size, price etc.). The customers can only view the information, but the site administrator can view and modify the information. Normally, you would have to make two jsps to achieve that: one to display the information, and one to modify them (you can also make one jsp with complicated logic stuff in it). With Struts-Layout, it is possible to make only one jsp, without logic in it.The goals is : One user object to create / edit / view, one DistpachAction class, one Form class, and one jsp." - but i don't like that taglib approach very much, because it is becoming too cohesive to the dependent frameworks. Thank you so much for your inputJörg Maurer -Original Message- From: Jason Long [mailto:[EMAIL PROTECTED] Sent: Dienstag, 11. März 2003 08:42 To: Struts Users Mailing List Subject: RE: Problems with multibox and checkbox I orginally thought the problem was with struts, but it seems to be an xsl problem I am having. I am generating many struts forms using jsp/xml syntax and struts. It is working quite nicely so far. I am using ,,... with no problems, but for some reason my xsl style sheet renders or without html prefix. I found the problem for anyone who may need an answer. It was nothing to do with checkbox or multibox. Since I was calling this from within and XSL template, I needed to declare the tag library in the xsl style sheet as well as the jsp:root. Jason Long - CEO and Chief Software Engineer Supernova Software - supernovasoftware.com BS Physics, MS Chemical Engineering -Original Message- From: Jason Long [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 11, 2003 12:21 AM To: Struts Users Mailing List Subject: Problems with multibox and checkbox I have tried both of the following, but I can not get this to work. I have a group of checkboxes that I would like to have filled after a validation attempt. If I add either of the following I get the following rendered to the browser. I have radio, and text fields working fine. What am I missing? Do I need to set chkItems to zero length in the form reset() method? If so, what is the syntax? Jason Long - CEO and Chief Software Engineer Supernova Software - supernovasoftware.com BS Physics, MS Chemical Engineering - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: The Back button on on multi-page forms ??????
A form based sequence token (as opposed to struts session based token) reduces users frustration with the lack of a back button. If the sequence tokens are form based users can wander to other parts of the application and return to a still usable page. I have found the complete removal of the back button a relatively high user frustration issue. Edgar > -Original Message- > From: Craig R. McClanahan [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 11, 2003 1:23 AM > To: 'Struts Users Mailing List'; '[EMAIL PROTECTED]' > Subject: RE: The Back button on on multi-page forms ?? > > > > > On Tue, 11 Mar 2003, Andrew Hill wrote: > > > Date: Tue, 11 Mar 2003 11:06:01 +0800 > > From: Andrew Hill <[EMAIL PROTECTED]> > > Reply-To: Struts Users Mailing List > <[EMAIL PROTECTED]>, > > [EMAIL PROTECTED] > > To: [EMAIL PROTECTED] > > Subject: RE: The Back button on on multi-page forms ?? > > > > Hasnt got to that stage yet, but Im guessing that the js > trick wont be > > particularly 'appreciated'. > > > > Of course that code is centralised in one javascript file, > so can be > > changed once Ive had a chance to get tokens working, but Im > going to > > need some fancy code to handle the situation where the url of the > > previous page is resubmitted as theres a fair bit of stuff > that has to > > go into the session context that wont be there any more if > they have > > completed that operation and then try to go back into it. > > > > Life would be a lot easier if this was just a website with some > > interactive bits, however its very much more in the nature of a > > complex application with bucket loads of state that happens > to use a > > browser instead of a standalone client and so theres a lot > more 'funny > > stuff' going on behind the scenes than your average struts > app would > > have - none of which plays well with the back button (or refresh & > > multiple submit for that matter). :-( > > > > I've been known to "discourage" the use of the back button by > opening my apps in a browser window that doesn't have the > usual location bar and back button icons -- it doesn't help > you defend against people that know the keyboard shortcuts, > but I was pretty happy with how much this simple approach cut > down complaints about the back button not working. > > Of course, it's incumbent upon the app developer to include > enough nice navigation controls in the page layout so as to > minimize the temptation to use the back button in any case ... :-) > > When you get that (rare :-) *rational* user that complains > about the back button, ask them to show you where the back > button is on any traditional GUI app, and then ask them why > it should work in a web *application* as opposed to a web *site*. > > Yes, it's tilting at windmills, but we can at least get a > *few* people to understand how silly this behavior is. > > Craig (who is usually sympathetic to app users, but not this time) > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Character set lost when doing an include with Struts!
Hello all. Has anyone ever had a problem maintaining character set in an included page? I do! I've tried everything: 1. using jsp format -- instead of Struts format, and nothing works. 2. jsp include of struts action -- 3. RequestDispatcher: RequestDispatcher dispatcher = request.getRequestDispatcher(forwardHomeNoticias.getPath()); dispatcher.include(request, response); ... nothing works! In my "mother" page I have the meta tag: In the included page I have the page directive: <%@ page language="java" contentType="text/html; charset=iso-8859-1" %> But ALL content in the included page -- data from the database, static html, everything -- appears with question marks instead of accented characters. If I include a static jsp with accented characters it appears correctly. My struts calls are: //struts action, /do/LoadNoticias/... //print content ... and no matter what I do it won't print correctly. Anyone know what the heck else I can try? Thanks in advance, Bob - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: The Back button on on multi-page forms ??????
From: "Edgar Dollin" <[EMAIL PROTECTED]> Hello, > [ ... ] I have found the complete removal of the > back button a relatively high user frustration issue. Yes, and in fact, it is not much safer as managing input validation with only javascript code. "Never trust the client (browser)" ! My 0.02 Euros :-p -- Laurent. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Message replacement
You can find sample code in many places including the struts-example
that ships with the software.
The classes involved are as follows:
org.apache.struts.util.MessageResources.java
org.apache.struts.util.MessageResourcesFactory.java
org.apache.struts.util.PropertyMessageResources.java
org.apache.struts.util.PropertyMessageResourcesFactory.java
In the future (1.2) we will be changing this to use commons-resources,
which basically does the same thing.
--
James Mitchell
Software Developer/Struts Evangelist
http://struts.sourceforge.net/struts-atlanta/
> -Original Message-
> From: Guido [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, March 11, 2003 4:44 AM
> To: Struts Users Mailing List
> Subject: Message replacement
>
>
> Hello
>
> Anyone can explain me (for dumbs) how does this replacement works
> (Action sample code would be great) and what Java classes are
> involved?
>
> error.number=The number {0} is greater than {1}
>
> Thank you!
> Guido.
>
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
-
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Re: switching from non SSL to SSL in struts..
Netscape has (in the past, at least, and it sounds like the current version is the same) viewed the following as different servers: http://somehost.com/ https://somehow.com/ These are equivalent to: http://somehost.com:80/ https://somehost.com:443/ It actually seems like a reasonable assumption to me, considering they very well could be totally different server instances running on the same hardware. The result is that cookies sent from somehost.com:80 are not sent with requests to somehost.com:443. This includes the session cookie, so when you switch you get a new session. The common solution is to explicitly set the cookie domain of all cookies sent by the server to simply 'somehost.com'. By explicitly setting the cookie domain in this way, cookies set by the server on one port of somehost.com will be sent to servers on other ports. Specifically, if the client connects to somehost.com:80 and gets a session cookie with the domain 'somehost.com' (as opposed to 'somehost.com:80'), the browser will include that cookie in requests to somehost.com:443 (since it matches the 'somehost.com' cookie domain, where it would not match 'somehost.com:80'). The details of doing this depend on your server, but a search for "cookie domain" should help locate the details of setting the value. Steve (sslext author) describes this issue in his article: http://www.javaworld.com/javaworld/jw-02-2002/jw-0215-ssl-p3.html It is kind of a pain to set and maintain the cookie domain as you deploy on different servers for development, QA, production, etc. If you have a server on qa.mycompany.net (your QA server) and the cookie domain is set to mycompany.com (your production machine), you will get a new session with every request, since the browser will never include the session cookie in any of its requests (because the server name and cookie domian don't match). I would suspect that the browser would just reject the cookie outright, since the cookie domain is clearly not a match for the server that sent it in the first place. I haven't tried it, but I wonder if the session ID could be included as part of the URL for all links/redirects/etc that jump from HTTP to HTTPS or back. It would be a pain to take the care to rewrite all such "jumper" URLs in this way, but that might be an easier maintenance burden to bear than setting the cookie domain in the server config. If it works, this might be a cool new feature for sslext (I'll forward this message to Steve to see what he thinks). Again, I haven't tried this but it seems like it might work. -Max - Original Message - From: "Dung Nguyen Huu" <[EMAIL PROTECTED]> To: "Struts Users Mailing List" <[EMAIL PROTECTED]> Sent: Tuesday, March 11, 2003 3:56 AM Subject: RE: switching from non SSL to SSL in struts.. > Hello all, > > I've used sslExt for our web application (for struts 1.0) and now I am > facing problem. > In out app, there is a need to put some small data into HttpSession for > reuse later, the problem is while switching from Http -> Https or vice > versa, the data put into HttpSession are lost if web client is Netscape > (6.1), It seems that Netscape use different session for HTTP and HTTPs...!!! > Meanwhile, our app works well with I.E. > > Any idea are welcome and appreciated ? > > > > > -Original Message- > > From: James [mailto:[EMAIL PROTECTED] > > Sent: Tuesday, March 11, 2003 10:39 AM > > To: [EMAIL PROTECTED] > > Subject: Re: switching from non SSL to SSL in struts.. > > > > > > i found it as you replied.. > > > > thanks anyway.. > > > > > > > > "Guido" <[EMAIL PROTECTED]> wrote in message > > news:[EMAIL PROTECTED] > > > Oh no! This topic again!! :P > > > > > > Take a look at sslext (sslext.sourceforge.net) or search > > this mail list > > > for it. > > > > > > hth, > > > Guido. > > > > > > James wrote: > > > > I've got my SSL connector configured in tomcat.. what i > > want to know is > > what > > > > do i need to do to change to secure page from non secure pages in > > struts... > > > > > > > > an example of this would be going from 'shopping cart' to > > 'checkout'.. > > is > > > > this a configuration issue? > > > > > > > > > > - > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [ANN] Struttin' With Struts beta (newbies esp. welcome)
Good work Rick. I'm sure many users (new and not-so-new) will greatly benefit from your efforts. robert > -Original Message- > From: Rick Reumann [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 11, 2003 2:37 AM > To: Struts Users Mailing List > Subject: [ANN] Struttin' With Struts beta (newbies esp. welcome) > > > I created a web site that walks new Struts users step by step > through the development of three VERY simple web applications in three > lessons. Each lesson adds a few more features so that they build upon > each other yet each stands alone such that if you follow the steps in > any lesson you'll have built a very basic application regardless of > which lesson you start with. > > I created these because there seemed to be lacking some more recent > "walk through" Struts tutorials geared toward the very new Struts > developer. I think real newbies will find them especially useful, but > then again I could be way wrong:) > > I'm considering the site a "beta" because I'm sure there will be some > mistakes. If anyone sees something I'm doing in a lesson that is way > off (or a very bad practice) please let me know. Some of the stuff I > know could be done in a more "best practice" way, but for the sake of > trying to also keep the lessons small and simple some ideas weren't > included (ie- I didn't use a constants interface for my forward > definitions). > > If anyone wants to contribute, reword, or add anything please let me > know. The site is there to help others. I got really lazy in a lot of > places and didn't say much about certain things that I would have liked > to. Hopefully over time the site will improve. > > Struttin' with Struts: > > http://www.reumann.net/do/struts/main > > -- > Rick > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[OT]Re: Message replacement
Thank you. The idea was use only Java "standard" classes (or at least commons packages), not Struts dependent ones. Maybe I can use java.text.MessageFormat I have seen at http://java.sun.com/products/jdk/1.2/docs/api/java/text/MessageFormat.html Regards, guido. James Mitchell wrote: You can find sample code in many places including the struts-example that ships with the software. The classes involved are as follows: org.apache.struts.util.MessageResources.java org.apache.struts.util.MessageResourcesFactory.java org.apache.struts.util.PropertyMessageResources.java org.apache.struts.util.PropertyMessageResourcesFactory.java In the future (1.2) we will be changing this to use commons-resources, which basically does the same thing. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
struts-config.xml parse errors (can't find source)
I'm just throwing together a demo application to refresh myself w/ struts but have run into a problem where the struts-config.xml is resulting in parsing errors, problem is I can't figure out where the error is. If someone could point it out I would appreciate it. http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd";> The error I'm getting from tomcat is, line 46 column 17 refers to a non-existent position in the document. While the document does have 46 lines it is the last line and column 17 is beyond the closing > of the tag. SEVERE: Parse Error at line 46 column 17: The content of element type "struts-config" must match "(data-sources?,form-beans?,global-exceptions?,global-forwards?,action-mappi ngs?,controller?,message-resources*,plug-in*)". org.xml.sax.SAXParseException: The content of element type "struts-config" must match "(data-sources?,form-beans?,global-exceptions?,global-forwards?,action-mappi ngs?,controller?,message-resources*,plug-in*)". - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: struts-config.xml parse errors (can't find source)
place yout before your On Tuesday 11 March 2003 11:23 am, Rob wrote: > I'm just throwing together a demo application to refresh myself w/ struts > but have > run into a problem where the struts-config.xml is resulting in parsing > errors, problem > is I can't figure out where the error is. If someone could point it out I > would appreciate > it. > > >"-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" > "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd";> > > > > > > > > > > > > > > > > > > > > type="web.QueryAction" > name="QueryForm" > input="/WEB-INF/pages/query.jsp" > scope="request"> > > > type="web.BrowseAction" > name="BrowseForm" > input="/WEB-INF/pages/browse.jsp" > scope="request"> > > > type="web.NewbugAction" > name="NewbugForm" > input="/WEB-INF/pages/newbug.jsp" > scope="request"> > > > > > > The error I'm getting from tomcat is, line 46 column 17 refers to a > non-existent position in the document. > While the document does have 46 lines it is the last line and column 17 is > beyond the closing > of the > tag. > > SEVERE: Parse Error at line 46 column 17: The content of element type > "struts-config" must match > "(data-sources?,form-beans?,global-exceptions?,global-forwards?,action-mapp >i ngs?,controller?,message-resources*,plug-in*)". > org.xml.sax.SAXParseException: The content of element type "struts-config" > must match > "(data-sources?,form-beans?,global-exceptions?,global-forwards?,action-mapp >i ngs?,controller?,message-resources*,plug-in*)". > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: struts-config.xml parse errors (can't find source)
Struts Console should help with issues like this as it validates config files and can point out where in a file a problem is. http://www.jamesholmes.com/struts/ -james --- Stephen Smithstone <[EMAIL PROTECTED]> wrote: > place yout before your > > > On Tuesday 11 March 2003 11:23 am, Rob wrote: > > I'm just throwing together a demo application to > refresh myself w/ struts > > but have > > run into a problem where the struts-config.xml is > resulting in parsing > > errors, problem > > is I can't figure out where the error is. If > someone could point it out I > > would appreciate > > it. > > > > > > > "-//Apache Software Foundation//DTD Struts > Configuration 1.1//EN" > > > "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd";> > > > > > > > > > > > > > > > > > > > > > > > > > > > > type="web.QueryForm"/> > > type="web.BrowseForm"/> > > type="web.NewbugForm"/> > > > > > > > > > type="web.QueryAction" > > name="QueryForm" > > input="/WEB-INF/pages/query.jsp" > > scope="request"> > > > > > > > type="web.BrowseAction" > > name="BrowseForm" > > input="/WEB-INF/pages/browse.jsp" > > scope="request"> > > > > > > > type="web.NewbugAction" > > name="NewbugForm" > > input="/WEB-INF/pages/newbug.jsp" > > scope="request"> > > > > > > > > > > > > The error I'm getting from tomcat is, line 46 > column 17 refers to a > > non-existent position in the document. > > While the document does have 46 lines it is the > last line and column 17 is > > beyond the closing > of the > > tag. > > > > SEVERE: Parse Error at line 46 column 17: The > content of element type > > "struts-config" must match > > > "(data-sources?,form-beans?,global-exceptions?,global-forwards?,action-mapp > >i ngs?,controller?,message-resources*,plug-in*)". > > org.xml.sax.SAXParseException: The content of > element type "struts-config" > > must match > > > "(data-sources?,form-beans?,global-exceptions?,global-forwards?,action-mapp > >i ngs?,controller?,message-resources*,plug-in*)". > > > > > > > > > > > - > > To unsubscribe, e-mail: > [EMAIL PROTECTED] > > For additional commands, e-mail: > [EMAIL PROTECTED] > > > - > To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > __ Do you Yahoo!? Yahoo! Web Hosting - establish your business online http://webhosting.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Struts Faces ea validation XML error [SOLVED]
> -Original Message- > From: PILGRIM, Peter, FM > > -Original Message- > > From: Craig R. McClanahan [mailto:[EMAIL PROTECTED] > > > > On Mon, 10 Mar 2003, PILGRIM, Peter, FM wrote: > > > > > Date: Mon, 10 Mar 2003 17:18:25 - > > > From: "PILGRIM, Peter, FM" <[EMAIL PROTECTED]> > > > Reply-To: Struts Users Mailing List > <[EMAIL PROTECTED]> > > > To: "Struts Users Mailing List (E-mail)" > > <[EMAIL PROTECTED]> > > > Subject: Struts Faces ea validation XML error > > > > > > After copying all three JSF JAR to struts-faces/WEB-INF, > > > and copying commons-logging-1.0.2.jar over WEB-INF/lib > > > I got a validation error in the Struts Faces download. > > > > > > Is the validation XML correct? > > > > > > > I only get errors like this when I forget to include > > "/WEB-INF/validation.xml" in my webapps -- can you make sure > > that is still > > present? > > > > Craig > > It is very weird because I have both `/WEB-INF/validation.xml' > and `/WEB-INF/validation-rules.xml' in the right place, > I also checked the `/WEB-INF/struts-config.xml' to make > sure that validator plugin is correctly set. This is > how I downloaded the struts-faces.jar ``as is' > > Something is wrong here. I copied the new validation.xml and validation-rules.xml from the original Struts example in 1.1 beta 3 release over to the Struts-Faces web app. Lo and behold, it works! > > > org.apache.jasper.JasperException: Depends string "email" > > was not found in > > > validator-rules.xml. > > > void > > > ---- > > ---- Mr. Brownstone, Appetite for Destruction, G & R -- Peter Pilgrim, Struts/J2EE Consultant, RBoS FM, Risk IT Tel: +44 (0)207-375-4923 Visit our Internet site at http://www.rbsmarkets.com This e-mail is intended only for the addressee named above. As this e-mail may contain confidential or privileged information, if you are not the named addressee, you are not authorised to retain, read, copy or disseminate this message or any part of it. The Royal Bank of Scotland plc is registered in Scotland No 90312 Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB Regulated by the Financial Services Authority - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
weird org.apache.struts.action does not exist
Hi, I am new to struts trying to learn something from Ted Husted's book Struts in
Action.
I installed Tomcat and IBM JDK 1.4., then downloaded Ted's example application
register-complete.war (which is example app on struts site too). It works fine but
when I try to compile something using Struts - I am in a big trouble. I tried to
recompile one of Ted's simple java files (setting CLASSPATH beforehand as this seems
to be the usual cause for the proble I get, as I learned from mailinglist archives):
[root]/usr/local/tomcat/webapps/register-complete/WEB-INF/classes/app> echo $CLASSPATH
/usr/local/tomcat/webapps/register-complete/WEB-INF/lib/struts_1_0_2.jar;.;/usr/local/tomcat;/opt/IBMJava2-131/lib
[root]/usr/local/tomcat/webapps/register-complete/WEB-INF/classes/app> javac
RegisterForm.java
RegisterForm.java:2: package org.apache.struts.action does not exist
import org.apache.struts.action.*;
^
RegisterForm.java:4: cannot resolve symbol
symbol : class ActionForm
location: class app.RegisterForm
public class RegisterForm extends ActionForm {
^
2 errors
Somebody, please help :(
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[OT] Isn't LISP the same?
Creators Admit UNIX, C Hoax
In an announcement that has stunned the computer industry, Ken Thompson,
Dennis Ritchie and Brian Kernighan admitted that the Unix operating system
and C programming language created by them is an elaborate prank kept alive
for over 30 years. Speaking at the recent UnixWorld Software Development
Forum, Thompson revealed the following:
"In 1969, AT&T had just terminated their work with the GE/Honeywell/AT&T
Multics project. Brian and I had started work with an early release of
Pascal from Professor Niklaus Wirth's ETH labs in Switzerland and we were
impressed with its elegant simplicity and power. Dennis had just finished
reading 'Bored of the Rings', a National Lampoon parody of the Tolkien's
'Lord of the Rings' trilogy. As a lark, we decided to do parodies of the
Multics environment and Pascal. Dennis and I were responsible for the
operating environment. We looked at Multics and designed the new OS to be
as complex and cryptic as possible to maximize casual users' frustration
levels, calling it Unix as a parody of Multics, as well as other more
risque allusions. We sold the terse command language to novitiates by
telling them that it saved them typing.
Then Dennis and Brian worked on a warped version of Pascal, called 'A'. 'A'
looked a lot like Pascal, but elevated the notion of the direct memory
address (which Wirth had banished) to the central concept of the language.
This was Dennis's contribution, and he in fact coined the term "pointer" as
an innocuous sounding name for a truly malevolent construct.
Brian must be credited with the idea of having absolutely no standard I/O
specification: this ensured that at least 50% of the typical commercial
program would have to be re-coded when changing hardware platforms. Brian
was also responsible for pitching this lack of I/O as a feature: it allowed
us to describe the language as "truly portable".
When we found others were actually creating real programs with A, we
removed compulsory type-checking on function arguments. Later, we added a
notion we called "casting": this allowed the programmer to treat an integer
as though it were a 50kb user-defined structure. When we found that some
programmers were simply not using pointers, we eliminated the ability to
pass structures to functions, enforcing their use in even the simplest
applications. We sold this, and many other features, as enhancements to the
efficiency of the language. In this way, our prank evolved into B, BCPL, and
finally C.
We stopped when we got a clean compile on the following syntax:
for(;P("\n"),R-;P("|"))for(e=3DC;e-;P("_"+(*u++/8)%2))P("| "+(*u/4)%2);
At one time, we joked about selling this to the Soviets to set their
computer science progress back 20 or more years.
Unfortunately, AT&T and other US corporations actually began using Unix and
C. We decided we'd better keep mum, assuming it was just a passing phase.
In fact, it took US companies over 20 years to develop enough expertise
to generate useful applications using this 1960's technological parody. We
are impressed with the tenacity of the general Unix and C programmer. In
fact, Brian, Dennis and I have never ourselves attempted to write a
commercial application in this environment.
We feel really guilty about the chaos, confusion and truly awesome
programming projects that have resulted from our silly prank so long ago."
Dennis Ritchie said: "What really tore it (just when Ada was catching on),
was that Bjarne Stroustrup caught onto our joke. He extended it to further
parody, C++. Like us, he was caught by surprise when nobody laughed.
So he added multiple inheritance, virtual base classes, and later ...
templates. All to no avail. So we now have compilers that can compile
100,000 lines per second, but need to process header files for 25 minutes
before they get to the meat of "Hello, World".
Major Unix and C vendors and customers, including AT&T, Microsoft,
Hewlett-Packard, GTE, NCR, and DEC have refused comment at this time.
Borland International, a leading vendor of object-oriented tools, including
the popular Turbo Pascal and Borland C++, stated they had suspected this for
a couple of years. In fact, the notoriously late Quattro Pro for
Windows was originally written in C++. Philippe Kahn said: "After two and a
half years programming, and massive programmer burn-outs, we re-coded the
whole thing in Turbo Pascal in three months. I think it's fair to say that
Turbo Pascal saved our bacon". Another Borland spokesman said that they
would continue to enhance their Pascal products and halt further efforts to
develop C/C++.
Professor Wirth of the ETH institute and father of the Pascal, Modula 2 and
Oberon structured languages, cryptically said "P.T. Barnum was right." He
had no further comments.
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For a
Re: [OT]:Hiding layers in HTML
Start by creating a load of absolute positioned layers with a linked or
emmbedded stype sheet.. Use id's to identify each div etc. and if you
are using a linked style sheet place an empty id'ed attribute at the
top off the css
i.e
/* quirck bug */
#dummy{
}
#div1 {
position:absolute;
etc
visability:hidden;
visibility:hide; //ns 4
}
etc
you can manipluate you css defined stuff in js like this
document.getElementById("div1").style.visability = "visible";
You'll also have to look for the reference for document.all and
document.layers for ie and ns 4..
My advise you be use innerHTML and innerText and don't use this type of
DHTML.. You'lll only have to write div code of ns4 this way.. Absolute
positioned divs are really fiddly .. InnerHTML on table cells much
nicer..
hope this helps
mark
Lunedì, 10 mar 2003, alle 22:41 Europe/Rome, Vinay ha scritto:
Thank you all for your replies. I think I will have to get some good
hold on
regular expressions
I found a site which lists possible regular expressions . This should
help
me, anyway even buying book should do
http://demo.freshwater.com/SiteScope/docs/regexp.htm
Now I have another question , which I think shouldn't be in this list
but
was curious if anybody knows.
I have HTML page with certain number of tables, in kind of different
layers(I have put them in field sets).
On triggering of event(liking selecting a certain checkbox) the
different
layers should be hidden or visible. I think it should be possible be
JavaScript I think, but don't know how.
Help appreciated,
Thanks in advance
Vinay
- Original Message -
From: "Dan Allen" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>
Sent: Monday, March 10, 2003 3:46 PM
Subject: Re: Regular Expressions
Not that I have seen per se. There is a site that has some pre-built
regexs but Im sorry I cant remember the URL. Your best bet is to go
buy
the Oreilly book "Mastering Regular Expressions" It is pretty much
the
bible of regex and well worth the investment.
KDE 3.1 has an awesome regular expression GUI editor, good for
people just learning how to create them. One thing to watch out
for:
In the validator, Perl regular expressions are used. Normally, when
you make a Perl regular expressions you have to use a delimiter,
which is typically '/'
However, in the validator definition file, you can exclude the
delimiter as the validator automatically adds it for you. However,
this means that you must escape and instance of '/' in your regular
expression.
I have filed a bug report about this in bugzilla because the
validator should automatically escape any delimiter used in the
definition file so that this "ghost" delimiter does not have to be
accounted for.
In short, I mean
The following would be accepted:
mask
^http://[^ ]*$
instead of the current syntax
mask
^http:\/\/[^ ]*$
Since behind the scenes the regexp becomes
/^http:\/\/[^ ]*$/
I rest my case.
Dan
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http://www.mojavelinux.com/
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from the isolation, I think I preferred the cows. They were
better in conversation, easier to milk, and if they annoyed me
enough, I could shoot them and eat them."
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RE: The Back button on on multi-page forms ??????
I've been known to "discourage" the use of the back button by opening my apps in a browser window that doesn't have the usual location bar and back button icons This is why I use Opera :-). Of course, it's incumbent upon the app developer to include enough nice navigation controls in the page layout so as to minimize the temptation to use the back button in any case ... :-) I have used some truly horrible apps that tried to remove my buttons and didn't provide adequate navigation. IMHO, it's not worth fighting the user over this issue. They want to use the back button so just let them. David _ Add photos to your messages with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
How to use conditionaly required fields in validator?
Hi All, I have seen in the Struts User's Guide http://jakarta.apache.org/struts/userGuide/dev_validator.html new support for conditionally required fields. I would love to take advantage of this feature but am unclear how to implement this functionality using the Struts validator. I can see from the example in the user guide that the form should contain a property containing an array of dependants that I believe would relate to a form field and its dependants. This combined with adding the attribute "indexedListProperty" referencing the dependants[] in a form field validation definition. But I am unclear on how to use this functionality. Any ideas? Many thanks, Greg
Re: weird org.apache.struts.action does not exist
Try using ":" instead of ";" in your CLASSPATH if you are developing
under Linux/UNIX.
If this doesn't work, try putting the classpath within your javac statment:
javac -classpath RegisterForm.java
HTH
Guido.
Tom Cat wrote:
Hi, I am new to struts trying to learn something from Ted Husted's book Struts in
Action.
I installed Tomcat and IBM JDK 1.4., then downloaded Ted's example application
register-complete.war (which is example app on struts site too). It works fine but
when I try to compile something using Struts - I am in a big trouble. I tried to
recompile one of Ted's simple java files (setting CLASSPATH beforehand as this seems
to be the usual cause for the proble I get, as I learned from mailinglist archives):
[root]/usr/local/tomcat/webapps/register-complete/WEB-INF/classes/app> echo $CLASSPATH
/usr/local/tomcat/webapps/register-complete/WEB-INF/lib/struts_1_0_2.jar;.;/usr/local/tomcat;/opt/IBMJava2-131/lib
[root]/usr/local/tomcat/webapps/register-complete/WEB-INF/classes/app> javac
RegisterForm.java
RegisterForm.java:2: package org.apache.struts.action does not exist
import org.apache.struts.action.*;
^
RegisterForm.java:4: cannot resolve symbol
symbol : class ActionForm
location: class app.RegisterForm
public class RegisterForm extends ActionForm {
^
2 errors
Somebody, please help :(
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Re: SSL extension question
it's ok I've got it... I missed the RequestProcessor entry in the struts-config.xml "James" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > I''m using the sslext struts extension to switch from non ssl to ssl.. > however i cant seem to get it working. > I use the url http://localhost:8080/MyApp to go to the welcome page.. and a > couple of pages later i need to switch to Https.. > > i have the jars in my /lib directory and i've made the following changes to > my struts-config.xml > what am i missing? > > --- > > > type="com.joe.bloggs.ListItemsAction" > name="listItemsForm" > scope="request" > input="/chooseItems.jsp"> > > > > > > > > > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [Q] Log Viewing tool for Windows environment?
Hi, u may wanna try http://www.textpad.com/ this one is pretty good refresh etc when the file is changed on computer and just press Ctrl + End key once and it will take u always to end of file Ashish --- Jeff Smith <[EMAIL PROTECTED]> wrote: > To date I have been using the brute-force log > viewer: notepad. Is anybody > aware of a Windows app that monitors text log files > (like output from log4j) > and automatically refreshes and scrolls to the end > of the file? Such > functionality would make my test-debug cycle less > mouse intensive. :-) > > In the UN*X world, I had the tail command for such > purposes. But I've never > seen anything like this for Windows. > > Any suggestions? > > Jefficus > > > - > To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > = A$HI$H __ Do you Yahoo!? Yahoo! Web Hosting - establish your business online http://webhosting.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: weird org.apache.struts.action does not exist
i'd read this
http://jakarta.apache.org/tomcat/tomcat-4.0-doc/appdev/index.html
take the example ant project and use it as a starting point for any
java propjects you are doing.. This will save you all the messing
around with classpaths etc (you still have to set them in ant's
build.xml file however).. Go through the ant stuff to install it if you
haven't already.
You will be able to drop any jar file in /WEB-INF/lib and it be placed
in your classpath.
A few hours spent here will save a lot of time,,, This also gives you a
development envionment where source is always seperate to compiled
classes..
If you really just want to get something running now then
> cd
> vi .bash_profile
add
export CLASSPATH=$CLASSPATH:PATH_TO_STRUTS_JARS
save and exit
:wq
start a new terminal session
cheers mark
Martedì, 11 mar 2003, alle 15:42 Europe/Rome, Guido ha scritto:
Try using ":" instead of ";" in your CLASSPATH if you are developing
under Linux/UNIX.
If this doesn't work, try putting the classpath within your javac
statment:
javac -classpath RegisterForm.java
HTH
Guido.
Tom Cat wrote:
Hi, I am new to struts trying to learn something from Ted Husted's
book Struts in Action.
I installed Tomcat and IBM JDK 1.4., then downloaded Ted's example
application register-complete.war (which is example app on struts
site too). It works fine but when I try to compile something using
Struts - I am in a big trouble. I tried to recompile one of Ted's
simple java files (setting CLASSPATH beforehand as this seems to be
the usual cause for the proble I get, as I learned from mailinglist
archives):
[root]/usr/local/tomcat/webapps/register-complete/WEB-INF/classes/
app> echo $CLASSPATH
/usr/local/tomcat/webapps/register-complete/WEB-INF/lib/
struts_1_0_2.jar;.;/usr/local/tomcat;/opt/IBMJava2-131/lib
[root]/usr/local/tomcat/webapps/register-complete/WEB-INF/classes/
app> javac RegisterForm.java
RegisterForm.java:2: package org.apache.struts.action does not exist
import org.apache.struts.action.*;
^
RegisterForm.java:4: cannot resolve symbol
symbol : class ActionForm
location: class app.RegisterForm
public class RegisterForm extends ActionForm {
^
2 errors
Somebody, please help :(
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RE: The Back button on on multi-page forms ??????
Even same browsers on 2 different machines generate different result. So use token to disable the Back behavior. -Original Message- From: David Graham [mailto:[EMAIL PROTECTED] Sent: March 10, 2003 5:17 PM To: [EMAIL PROTECTED] Subject: RE: The Back button on on multi-page forms ?? Then that is a browser specific issue. When I hit the back button in Opera, all of the form fields are just how I entered them. Remember that the back button does not contact the server so Struts has nothing to do with this. David >From: "Ron Day" <[EMAIL PROTECTED]> >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> >To: "Struts Users Mailing List" <[EMAIL PROTECTED]> >Subject: RE: The Back button on on multi-page forms ?? >Date: Mon, 10 Mar 2003 16:08:10 -0600 > >sorry, I think we are going in circles. > >This is a multipage form (3 to be exact but with only one actionform), BUT >my whole original issue was: > >When they hit the back button the original form content IS either absent or >different to their last entries (I do a reset in the actionform0. > >Am I doing something wrong or is this a fact of life with the back button. > >ron > >-Original Message- >From: David Graham [mailto:[EMAIL PROTECTED] >Sent: Monday, March 10, 2003 3:49 PM >To: [EMAIL PROTECTED] >Subject: RE: The Back button on on multi-page forms ?? > > >If this is a multi-page form, then don't use tokens and let them use the >back button to correct the data. If it's a single page form, use tokens >and >provide an update form where they can correct any mistakes they made on the >add form. The difference is that the multi-page form will be accumulating >data in the session rather than immediately inserting it in the database. > >David > > > > >From: "Ron Day" <[EMAIL PROTECTED]> > >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > >To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > >Subject: RE: The Back button on on multi-page forms ?? > >Date: Mon, 10 Mar 2003 15:36:25 -0600 > > > >I completely understand your example and how validation works. > > > >In my example, the error is not a validation error, it is a user error >(as > >my example said a wrong phone number) > >Say he/she typed in a home phone number and wants to go back and change >it > >to his work phone. > >The user instinctively will hit the back button. > >That's where my problem starts.. > > > >ron > > > >-Original Message- > >From: David Graham [mailto:[EMAIL PROTECTED] > >Sent: Monday, March 10, 2003 3:27 PM > >To: [EMAIL PROTECTED] > >Subject: RE: The Back button on on multi-page forms ?? > > > > > >1. User submits form with invalid data. > >2. Form bean's validate() method returns ActionErrors > >3. Struts *forwards* the request back to the input page with errors > >4. Input page displays errors. > >5. User submits form again, if invalid goto step 1. > > > >There is no valid reason for the user to use the back button to correct > >data. Tokens prevent the user from submitting the same form twice. > > > >David > > > > > > > > >From: "Ron Day" <[EMAIL PROTECTED]> > > >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > > >To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > > >Subject: RE: The Back button on on multi-page forms ?? > > >Date: Mon, 10 Mar 2003 15:07:40 -0600 > > > > > >So, how can they correct a user error (i.e wrong phone number) on the > > >previous page, and resubmit the form? > > > > > >R > > > > > >-Original Message- > > >From: David Graham [mailto:[EMAIL PROTECTED] > > >Sent: Monday, March 10, 2003 3:01 PM > > >To: [EMAIL PROTECTED] > > >Subject: RE: The Back button on on multi-page forms ?? > > > > > > > > >Pressing the back button does not contact the server and thus cannot >post > > >any information. When the user submits the form again, their token >will > >be > > >invalid and your action will prevent a duplicate post. > > > > > >David > > > > > > > > > > > > >From: "Ron Day" <[EMAIL PROTECTED]> > > > >Reply-To: "Struts Users Mailing List" ><[EMAIL PROTECTED]> > > > >To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > > > >Subject: RE: The Back button on on multi-page forms ?? > > > >Date: Mon, 10 Mar 2003 14:40:43 -0600 > > > > > > > >Maybe I'm dumb, but it is not apparent to me how the "token" is used >to > > > >make > > > >the back button post the correct form information. > > > > > > > >R > > > > > > > >-Original Message- > > > >From: David Graham [mailto:[EMAIL PROTECTED] > > > >Sent: Monday, March 10, 2003 12:48 PM > > > >To: [EMAIL PROTECTED] > > > >Subject: RE: The Back button on on multi-page forms ?? > > > > > > > > > > > >You'll notice that I also pointed you to the struts-example app that > > >shows > > > >you how to use the methods you found in the javadoc. > > > > > > > >David > > > > > > > > > > > > > > > > >From: "Ron Day" <[EMAIL PROTECTED]> > > > > >Reply-To: "Struts Users Mailing List" > ><[EMAIL PROTECTED]>
RE: The Back button on on multi-page forms ??????
Show us your JavaScript evil. My boss insists on using Back, I have to give me a shock. -Original Message- From: Andrew Hill [mailto:[EMAIL PROTECTED] Sent: March 10, 2003 9:39 PM To: Struts Users Mailing List Subject: RE: The Back button on on multi-page forms ?? Remember that the back button does not contact the server Some do sometimes - but Im not sure under what cicumstances - probably depends on what sort of caching setting you have set up in your browser - and what browser it is - and the alignment of neptune and saturn etc.. (ie: nothing you can rely on server side). Ive seen it happen. At the moment Im using the evil javascript location.replace trick to avoid pages going into the history where possible. People who hit the back button end up back on the login page... I really wanted to give them an electric shock to help the "back is bad" concept sink in properly, but alas! - the hardware isnt in place to administer this form of 'interactive user training' :-( -Original Message- From: David Graham [mailto:[EMAIL PROTECTED] Sent: Tuesday, 11 March 2003 06:17 To: [EMAIL PROTECTED] Subject: RE: The Back button on on multi-page forms ?? Then that is a browser specific issue. When I hit the back button in Opera, all of the form fields are just how I entered them. Remember that the back button does not contact the server so Struts has nothing to do with this. David >From: "Ron Day" <[EMAIL PROTECTED]> >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> >To: "Struts Users Mailing List" <[EMAIL PROTECTED]> >Subject: RE: The Back button on on multi-page forms ?? >Date: Mon, 10 Mar 2003 16:08:10 -0600 > >sorry, I think we are going in circles. > >This is a multipage form (3 to be exact but with only one actionform), BUT >my whole original issue was: > >When they hit the back button the original form content IS either absent or >different to their last entries (I do a reset in the actionform0. > >Am I doing something wrong or is this a fact of life with the back button. > >ron > >-Original Message- >From: David Graham [mailto:[EMAIL PROTECTED] >Sent: Monday, March 10, 2003 3:49 PM >To: [EMAIL PROTECTED] >Subject: RE: The Back button on on multi-page forms ?? > > >If this is a multi-page form, then don't use tokens and let them use the >back button to correct the data. If it's a single page form, use tokens >and >provide an update form where they can correct any mistakes they made on the >add form. The difference is that the multi-page form will be accumulating >data in the session rather than immediately inserting it in the database. > >David > > > > >From: "Ron Day" <[EMAIL PROTECTED]> > >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > >To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > >Subject: RE: The Back button on on multi-page forms ?? > >Date: Mon, 10 Mar 2003 15:36:25 -0600 > > > >I completely understand your example and how validation works. > > > >In my example, the error is not a validation error, it is a user error >(as > >my example said a wrong phone number) > >Say he/she typed in a home phone number and wants to go back and change >it > >to his work phone. > >The user instinctively will hit the back button. > >That's where my problem starts.. > > > >ron > > > >-Original Message- > >From: David Graham [mailto:[EMAIL PROTECTED] > >Sent: Monday, March 10, 2003 3:27 PM > >To: [EMAIL PROTECTED] > >Subject: RE: The Back button on on multi-page forms ?? > > > > > >1. User submits form with invalid data. > >2. Form bean's validate() method returns ActionErrors > >3. Struts *forwards* the request back to the input page with errors > >4. Input page displays errors. > >5. User submits form again, if invalid goto step 1. > > > >There is no valid reason for the user to use the back button to correct > >data. Tokens prevent the user from submitting the same form twice. > > > >David > > > > > > > > >From: "Ron Day" <[EMAIL PROTECTED]> > > >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > > >To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > > >Subject: RE: The Back button on on multi-page forms ?? > > >Date: Mon, 10 Mar 2003 15:07:40 -0600 > > > > > >So, how can they correct a user error (i.e wrong phone number) on the > > >previous page, and resubmit the form? > > > > > >R > > > > > >-Original Message- > > >From: David Graham [mailto:[EMAIL PROTECTED] > > >Sent: Monday, March 10, 2003 3:01 PM > > >To: [EMAIL PROTECTED] > > >Subject: RE: The Back button on on multi-page forms ?? > > > > > > > > >Pressing the back button does not contact the server and thus cannot >post > > >any information. When the user submits the form again, their token >will > >be > > >invalid and your action will prevent a duplicate post. > > > > > >David > > > > > > > > > > > > >From: "Ron Day" <[EMAIL PROTECTED]> > > > >Reply-To: "Struts Users Mailing List" ><[EMAIL PROTECTED]> > > > >To: "St
RE: The Back button on on multi-page forms ??????
Does IRS give me a chance hitting Back, re-filing last year's tax form and re-submitting it? :) -Original Message- From: Bueno Carlos M [mailto:[EMAIL PROTECTED] Sent: March 10, 2003 10:27 PM To: 'Struts Users Mailing List' Subject: RE: The Back button on on multi-page forms ?? I may be way off here, but how about coding defensively? This isn't some special java-struts problem; it's the price of maintaining the illusion of a session over HTTP. Form tokens are a good idea but the user can and will click that pesky back button to change what they inputted. One of two things will happen: the browser calls up the form from cache and fills in the values or it makes a new HTTP request, which will give them a blank form. Since they have already submitted once, you have that data somewhere. So populate the dang form if the data exists. Simple? Simple. It doesn't have to be complicated. A properly-built state machine (ie, your session or action code) should ignore input that can corrupt its internals. Check the state you are about to change -- if it's already changed, go to the next step, merge it or whatever is the Right Thing To Do. If you app is so fragile that someone clicking ye olde back button will mess things up you should look for ways to improve and simplify your design, not some clever client hack. My reasoning is this: as soon as you plug one hole another will open up. Say you disable the back button. What happens if the user clicks submit twice? What happens if they press CTRL-N and now have two windows with the same session? 1. Users will always do what you don't expect. 2. The average user is pretty dumb. 3. Half of all users are even dumber than *that*. 4. Browsers work for them, not for you. -- los -Original Message- From: Andrew Hill [mailto:[EMAIL PROTECTED] Sent: Monday, March 10, 2003 9:39 PM To: Struts Users Mailing List Subject: RE: The Back button on on multi-page forms ?? Remember that the back button does not contact the server Some do sometimes - but Im not sure under what cicumstances - probably depends on what sort of caching setting you have set up in your browser - and what browser it is - and the alignment of neptune and saturn etc.. (ie: nothing you can rely on server side). Ive seen it happen. At the moment Im using the evil javascript location.replace trick to avoid pages going into the history where possible. People who hit the back button end up back on the login page... I really wanted to give them an electric shock to help the "back is bad" concept sink in properly, but alas! - the hardware isnt in place to administer this form of 'interactive user training' :-( -Original Message- From: David Graham [mailto:[EMAIL PROTECTED] Sent: Tuesday, 11 March 2003 06:17 To: [EMAIL PROTECTED] Subject: RE: The Back button on on multi-page forms ?? Then that is a browser specific issue. When I hit the back button in Opera, all of the form fields are just how I entered them. Remember that the back button does not contact the server so Struts has nothing to do with this. David >From: "Ron Day" <[EMAIL PROTECTED]> >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> >To: "Struts Users Mailing List" <[EMAIL PROTECTED]> >Subject: RE: The Back button on on multi-page forms ?? >Date: Mon, 10 Mar 2003 16:08:10 -0600 > >sorry, I think we are going in circles. > >This is a multipage form (3 to be exact but with only one actionform), BUT >my whole original issue was: > >When they hit the back button the original form content IS either absent or >different to their last entries (I do a reset in the actionform0. > >Am I doing something wrong or is this a fact of life with the back button. > >ron > >-Original Message- >From: David Graham [mailto:[EMAIL PROTECTED] >Sent: Monday, March 10, 2003 3:49 PM >To: [EMAIL PROTECTED] >Subject: RE: The Back button on on multi-page forms ?? > > >If this is a multi-page form, then don't use tokens and let them use the >back button to correct the data. If it's a single page form, use tokens >and >provide an update form where they can correct any mistakes they made on the >add form. The difference is that the multi-page form will be accumulating >data in the session rather than immediately inserting it in the database. > >David > > > > >From: "Ron Day" <[EMAIL PROTECTED]> > >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > >To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > >Subject: RE: The Back button on on multi-page forms ?? > >Date: Mon, 10 Mar 2003 15:36:25 -0600 > > > >I completely understand your example and how validation works. > > > >In my example, the error is not a validation error, it is a user error >(as > >my example said a wrong phone number) > >Say he/she typed in a home phone number and wants to go back and change >it > >to his work phone. > >The user instinctively will hit the back button. > >That's where my problem starts..
How define a DynaActionForm to display a collection ?
I would like to define a DynaActionForm that is used to display a collection in a JSP page. For example the DTO object of the business tier is a CustomerObject with the following properties: - First Name - Last Name - Age - Country - Identifier For a customer detail view I have the following DynaActionForm: How must I define/declare the DynaActionForm associated to the JSP page that display the list of customers ? I can perhaps use the same DynaActionForm for the two pages ? In this case which is the code to update or create the collection of DTO object (CustomerObject ) ? --- As of February 12, 2003 Thomson unifies its email addresses on a worldwide basis.Please note my new email address: [EMAIL PROTECTED] Thomson is the leader in solutions and technologies for the entertainment and media industries and serves its customers under its four strategic brands: Technicolor, Grass Valley, RCA and THOMSON. More about Thomson: http://www.thomson.net/videochain
RE: [Q] Log Viewing tool for Windows environment?
I also use Textpad exclusively for anything that Eclipse won't do. The refresh feature is nice since it doesn't lock open files so you can monitor your log files. I also take advantage of the custom Tools buttons for launching ant, it's nice to be able to jump around in a text-editor-view of the output from ant instead of dealing with a command window. -- James Mitchell Software Developer/Struts Evangelist http://struts.sourceforge.net/struts-atlanta/ > -Original Message- > From: Ashish Kulkarni [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 11, 2003 9:56 AM > To: Struts Users Mailing List > Subject: Re: [Q] Log Viewing tool for Windows environment? > > > Hi, > u may wanna try > http://www.textpad.com/ > > this one is pretty good refresh etc when the file is > changed on computer and just press Ctrl + End key once > and it will take u always to end of file > > Ashish > --- Jeff Smith <[EMAIL PROTECTED]> wrote: > > To date I have been using the brute-force log > > viewer: notepad. Is anybody > > aware of a Windows app that monitors text log files > > (like output from log4j) > > and automatically refreshes and scrolls to the end > > of the file? Such > > functionality would make my test-debug cycle less > > mouse intensive. :-) > > > > In the UN*X world, I had the tail command for such > > purposes. But I've never > > seen anything like this for Windows. > > > > Any suggestions? > > > > Jefficus > > > > > > > - > > To unsubscribe, e-mail: > > [EMAIL PROTECTED] > > For additional commands, e-mail: > > [EMAIL PROTECTED] > > > > > = > A$HI$H > > __ > Do you Yahoo!? > Yahoo! Web Hosting - establish your business online > http://webhosting.yahoo.com > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: OT Filename using file download within an action
Roland,
Have you found that Netscape *never* shows the correct file name (without
the .do) when downloading? It appears to me that if Mozilla "understands"
the file content type, the file name will appear correctly in the download
dialog box. But if it doesn't (meaning application/octet-stream), then it
displays the .do at the end of the file name. Apparently IE determines the
content type differently (figures out what the file type is itself), so
therefore displays a correct file name.
How are you setting the content type in your download? I am currently
trying something like the following:
String mimeType =
URLConnection.getFileNameMap().getContentTypeFor(fileName);
if (mimeType != null) {response.setContentType(mimeType);}
else {response.setContentType("application/octet-stream");}
response.setHeader("Content-Disposition", "attachment; filename=" +
fileName);
Although I am not exactly sure where this (URLConnection) content type
information comes from. I hesitate to manually list out content types,
since there are so many, but perhaps that is what most people do?
Sorry I can't provide an answer, but I would be interested to hear if you
gain some insight on this.
Thanks,
Susan Bradeen
On 03/10/2003 12:40:26 PM "Roland Berger" wrote:
> Hi all
>
> Craig has described in the thread "File upload/download design question"
how
> to download a file from within an action. Others have described how to
set
> the Header so that the browser is promting for the right filename:
>
> response.setHeader("Content-Disposition","attachment; filename=\"" +
> myFileName+ "\";");
>
> The later does not work with netscape version 7 ( it does work with IE 6
).
> In the popup, the browser suggests the filename like this:
.do
> . One year has passed by since and world has become more clever
(sometimes I
> think the opposite). Is there a more definitv guide to suggest the
filename
> of the download?
>
> Thank's
> Roland
>
>
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Re: [ANN] Struttin' With Struts beta (newbies esp. welcome)
On Tue, 11 Mar 2003 06:49:54 -0500
Vic Cekvenich <[EMAIL PROTECTED]> wrote:
> Excellent!!!
>
> I will take the tutorial.
> I am wondering what are you doing for your Data Base, is it JDBC or
> something else.
Thank you Vic.
Actually since the lessons are very basic they don't even really touch
the Model layer. They stop with a simple dummy call to service methods
like:
EmployeeDTO insertEmployee( EmployeeDTO employee ) { return employee; }
My goal eventually is to build up to some model layer
approaches on Database connectivity etc, but of course would have to run
that stuff by you gurus :) as I'm still very weak in that area myself.
Tentative lessons I'd like to see:
Lesson IV -
Tiles
internationalization
Lesson V -
Accessing your model layer ( proper use of factories, services, DAOs
etc.)
nested tags
It would be cool if someone wanted to create any of the above lessons
following the same pattern of dealing with inserting/updating an
employee. If each lesson follows the same functionality (with just added
components/features) it makes it much easier for a new person to follow.
> > Struttin' with Struts:
> >
> > http://www.reumann.net/do/struts/main
> >
--
Rick Reumann
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Re: [Q] Log Viewing tool for Windows environment?
cygwin has tail... and grep and awk... www.cygwin.com Umberto Quoting Ashish Kulkarni <[EMAIL PROTECTED]>: > Hi, > u may wanna try > http://www.textpad.com/ > > this one is pretty good refresh etc when the file is > changed on computer and just press Ctrl + End key once > and it will take u always to end of file > > Ashish > --- Jeff Smith <[EMAIL PROTECTED]> wrote: > > To date I have been using the brute-force log > > viewer: notepad. Is anybody > > aware of a Windows app that monitors text log files > > (like output from log4j) > > and automatically refreshes and scrolls to the end > > of the file? Such > > functionality would make my test-debug cycle less > > mouse intensive. :-) > > > > In the UN*X world, I had the tail command for such > > purposes. But I've never > > seen anything like this for Windows. > > > > Any suggestions? > > > > Jefficus > > > > > > > - > > To unsubscribe, e-mail: > > [EMAIL PROTECTED] > > For additional commands, e-mail: > > [EMAIL PROTECTED] > > > > > = > A$HI$H > > __ > Do you Yahoo!? > Yahoo! Web Hosting - establish your business online > http://webhosting.yahoo.com > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Newbie question
How can i mask the url in the browser so the user does not see the request parameters..? ie /localhost/myapp/find?id=3 - is what is currently displayed... - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How define a DynaActionForm to display a collection ?
in action
DynaActionForm theForm = (DynaActionForm) form;
theForm.set("firstName",myValue);
that should be what you need
cheers mark
Martedì, 11 mar 2003, alle 16:15 Europe/Rome, Heligon Sandra ha scritto:
I would like to define a DynaActionForm that is used to display
a collection in a JSP page.
For example the DTO object of the business tier is a
CustomerObject with the following properties:
- First Name
- Last Name
- Age
- Country
- Identifier
For a customer detail view I have the following DynaActionForm:
How must I define/declare the DynaActionForm associated to the JSP
page that display
the list of customers ?
I can perhaps use the same DynaActionForm for the two pages ?
In this case which is the code to update or create the collection of
DTO object (CustomerObject ) ?
---
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RE: [OT] Isn't LISP the same?
And James Gosling was part of it as well!
-Original Message-
From: Mark Galbreath [mailto:[EMAIL PROTECTED]
Sent: 11 March, 2003 16:21
To: struts
Subject: [OT] Isn't LISP the same?
Creators Admit UNIX, C Hoax
In an announcement that has stunned the computer industry, Ken Thompson,
Dennis Ritchie and Brian Kernighan admitted that the Unix operating system
and C programming language created by them is an elaborate prank kept alive
for over 30 years. Speaking at the recent UnixWorld Software Development
Forum, Thompson revealed the following:
"In 1969, AT&T had just terminated their work with the GE/Honeywell/AT&T
Multics project. Brian and I had started work with an early release of
Pascal from Professor Niklaus Wirth's ETH labs in Switzerland and we were
impressed with its elegant simplicity and power. Dennis had just finished
reading 'Bored of the Rings', a National Lampoon parody of the Tolkien's
'Lord of the Rings' trilogy. As a lark, we decided to do parodies of the
Multics environment and Pascal. Dennis and I were responsible for the
operating environment. We looked at Multics and designed the new OS to be
as complex and cryptic as possible to maximize casual users' frustration
levels, calling it Unix as a parody of Multics, as well as other more
risque allusions. We sold the terse command language to novitiates by
telling them that it saved them typing.
Then Dennis and Brian worked on a warped version of Pascal, called 'A'. 'A'
looked a lot like Pascal, but elevated the notion of the direct memory
address (which Wirth had banished) to the central concept of the language.
This was Dennis's contribution, and he in fact coined the term "pointer" as
an innocuous sounding name for a truly malevolent construct.
Brian must be credited with the idea of having absolutely no standard I/O
specification: this ensured that at least 50% of the typical commercial
program would have to be re-coded when changing hardware platforms. Brian
was also responsible for pitching this lack of I/O as a feature: it allowed
us to describe the language as "truly portable".
When we found others were actually creating real programs with A, we
removed compulsory type-checking on function arguments. Later, we added a
notion we called "casting": this allowed the programmer to treat an integer
as though it were a 50kb user-defined structure. When we found that some
programmers were simply not using pointers, we eliminated the ability to
pass structures to functions, enforcing their use in even the simplest
applications. We sold this, and many other features, as enhancements to the
efficiency of the language. In this way, our prank evolved into B, BCPL, and
finally C.
We stopped when we got a clean compile on the following syntax:
for(;P("\n"),R-;P("|"))for(e=3DC;e-;P("_"+(*u++/8)%2))P("| "+(*u/4)%2);
At one time, we joked about selling this to the Soviets to set their
computer science progress back 20 or more years.
Unfortunately, AT&T and other US corporations actually began using Unix and
C. We decided we'd better keep mum, assuming it was just a passing phase.
In fact, it took US companies over 20 years to develop enough expertise
to generate useful applications using this 1960's technological parody. We
are impressed with the tenacity of the general Unix and C programmer. In
fact, Brian, Dennis and I have never ourselves attempted to write a
commercial application in this environment.
We feel really guilty about the chaos, confusion and truly awesome
programming projects that have resulted from our silly prank so long ago."
Dennis Ritchie said: "What really tore it (just when Ada was catching on),
was that Bjarne Stroustrup caught onto our joke. He extended it to further
parody, C++. Like us, he was caught by surprise when nobody laughed.
So he added multiple inheritance, virtual base classes, and later ...
templates. All to no avail. So we now have compilers that can compile
100,000 lines per second, but need to process header files for 25 minutes
before they get to the meat of "Hello, World".
Major Unix and C vendors and customers, including AT&T, Microsoft,
Hewlett-Packard, GTE, NCR, and DEC have refused comment at this time.
Borland International, a leading vendor of object-oriented tools, including
the popular Turbo Pascal and Borland C++, stated they had suspected this for
a couple of years. In fact, the notoriously late Quattro Pro for
Windows was originally written in C++. Philippe Kahn said: "After two and a
half years programming, and massive programmer burn-outs, we re-coded the
whole thing in Turbo Pascal in three months. I think it's fair to say that
Turbo Pascal saved our bacon". Another Borland spokesman said that they
would continue to enhance their Pascal products and halt further efforts to
develop C/C++.
Professor Wirth of the ETH institute and father of the Pascal, Modula 2 and
Oberon structured languages, c
RE: Newbie question
do a post instead of a get -- Voytek Jarnot Quidquid latine dictum sit, altum viditur. > -Original Message- > From: James [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 11, 2003 9:23 AM > To: [EMAIL PROTECTED] > Subject: Newbie question > > > How can i mask the url in the browser so the user does not > see the request > parameters..? > > ie /localhost/myapp/find?id=3 - is what is currently displayed... > > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Newbie question
id first pass it to a the action needed then do a redirect to another action that would get rid of the url for you maybe On Tuesday 11 March 2003 3:22 pm, James wrote: > How can i mask the url in the browser so the user does not see the request > parameters..? > > ie /localhost/myapp/find?id=3 - is what is currently displayed... > > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Newbie question
I am doing a post... but the url still shows localhost/myapp/find.do?id=3 "Jarnot Voytek Contr AU HQ/SC" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > do a post instead of a get > > -- > Voytek Jarnot > Quidquid latine dictum sit, altum viditur. > > > > -Original Message- > > From: James [mailto:[EMAIL PROTECTED] > > Sent: Tuesday, March 11, 2003 9:23 AM > > To: [EMAIL PROTECTED] > > Subject: Newbie question > > > > > > How can i mask the url in the browser so the user does not > > see the request > > parameters..? > > > > ie /localhost/myapp/find?id=3 - is what is currently displayed... > > > > > > > > > > > > - > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Newbie question
Use HTTP POST instead of GET. Mark -Original Message- From: James [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 11, 2003 10:23 AM To: [EMAIL PROTECTED] Subject: Newbie question How can i mask the url in the browser so the user does not see the request parameters..? ie /localhost/myapp/find?id=3 - is what is currently displayed... - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Newbie question
Do you intentionally append id=3 to the url? -Original Message- From: Jamesey [mailto:[EMAIL PROTECTED] Sent: March 11, 2003 10:29 AM To: [EMAIL PROTECTED] Subject: Re: Newbie question I am doing a post... but the url still shows localhost/myapp/find.do?id=3 "Jarnot Voytek Contr AU HQ/SC" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > do a post instead of a get > > -- > Voytek Jarnot > Quidquid latine dictum sit, altum viditur. > > > > -Original Message- > > From: James [mailto:[EMAIL PROTECTED] > > Sent: Tuesday, March 11, 2003 9:23 AM > > To: [EMAIL PROTECTED] > > Subject: Newbie question > > > > > > How can i mask the url in the browser so the user does not > > see the request > > parameters..? > > > > ie /localhost/myapp/find?id=3 - is what is currently displayed... > > > > > > > > > > > > - > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: How define a DynaActionForm to display a collection ?
Your example is for a "single" person.
But is it possible to define a DynaActionForm that
represents a collection of objects.
And how do the initialization of the DynaActionForm ?
---
As of February 12, 2003 Thomson unifies its email addresses on a worldwide
basis.Please note my new email address: [EMAIL PROTECTED]
Thomson is the leader in solutions and technologies for the entertainment
and media industries and serves its customers under its four strategic
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More about Thomson: http://www.thomson.net/videochain
Original Message-
From: Mark Lowe [mailto:[EMAIL PROTECTED]
Sent: 11 March 2003 16:26
To: Struts Users Mailing List
Subject: Re: How define a DynaActionForm to display a collection ?
in action
DynaActionForm theForm = (DynaActionForm) form;
theForm.set("firstName",myValue);
that should be what you need
cheers mark
Martedì, 11 mar 2003, alle 16:15 Europe/Rome, Heligon Sandra ha scritto:
>
> I would like to define a DynaActionForm that is used to display
> a collection in a JSP page.
>
> For example the DTO object of the business tier is a
> CustomerObject with the following properties:
>
> - First Name
> - Last Name
> - Age
> - Country
> - Identifier
>
> For a customer detail view I have the following DynaActionForm:
>type="org.apache.struts.validator.DynaValidatorForm">
>initial="" />
>initial="" />
>
> initial="" />
>initial="" />
>
>
> How must I define/declare the DynaActionForm associated to the JSP
> page that display
> the list of customers ?
>
>type="org.apache.struts.validator.DynaValidatorForm">
>
> I can perhaps use the same DynaActionForm for the two pages ?
>
> In this case which is the code to update or create the collection of
> DTO object (CustomerObject ) ?
>
>
>
> ---
> As of February 12, 2003 Thomson unifies its email addresses on a
> worldwide
> basis.Please note my new email address: [EMAIL PROTECTED]
>
> Thomson is the leader in solutions and technologies for the
> entertainment
> and media industries and serves its customers under its four strategic
> brands: Technicolor, Grass Valley, RCA and THOMSON.
> More about Thomson: http://www.thomson.net/videochain
>
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Re: Newbie question
nope.. its just the property's of my Dynabean.. when i sumbit and the form posts that what i get.. "apachep2" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Do you intentionally append id=3 to the url? > > -Original Message- > From: Jamesey [mailto:[EMAIL PROTECTED] > Sent: March 11, 2003 10:29 AM > To: [EMAIL PROTECTED] > Subject: Re: Newbie question > > I am doing a post... > > but the url still shows localhost/myapp/find.do?id=3 > > "Jarnot Voytek Contr AU HQ/SC" <[EMAIL PROTECTED]> wrote in > message > news:[EMAIL PROTECTED] > > do a post instead of a get > > > > -- > > Voytek Jarnot > > Quidquid latine dictum sit, altum viditur. > > > > > > > -Original Message- > > > From: James [mailto:[EMAIL PROTECTED] > > > Sent: Tuesday, March 11, 2003 9:23 AM > > > To: [EMAIL PROTECTED] > > > Subject: Newbie question > > > > > > > > > How can i mask the url in the browser so the user does not > > > see the request > > > parameters..? > > > > > > ie /localhost/myapp/find?id=3 - is what is currently displayed... > > > > > > > > > > > > > > > > > > > - > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Newbie question
What is the method for form? It should be POST, not GET. Dejan - Original Message - From: "Jamesey" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, March 11, 2003 4:34 PM Subject: Re: Newbie question > nope.. its just the property's of my Dynabean.. > > when i sumbit and the form posts that what i get.. > > > "apachep2" <[EMAIL PROTECTED]> wrote in message > news:[EMAIL PROTECTED] > > Do you intentionally append id=3 to the url? > > > > -Original Message- > > From: Jamesey [mailto:[EMAIL PROTECTED] > > Sent: March 11, 2003 10:29 AM > > To: [EMAIL PROTECTED] > > Subject: Re: Newbie question > > > > I am doing a post... > > > > but the url still shows localhost/myapp/find.do?id=3 > > > > "Jarnot Voytek Contr AU HQ/SC" <[EMAIL PROTECTED]> wrote in > > message > > news:[EMAIL PROTECTED] > > > do a post instead of a get > > > > > > -- > > > Voytek Jarnot > > > Quidquid latine dictum sit, altum viditur. > > > > > > > > > > -Original Message- > > > > From: James [mailto:[EMAIL PROTECTED] > > > > Sent: Tuesday, March 11, 2003 9:23 AM > > > > To: [EMAIL PROTECTED] > > > > Subject: Newbie question > > > > > > > > > > > > How can i mask the url in the browser so the user does not > > > > see the request > > > > parameters..? > > > > > > > > ie /localhost/myapp/find?id=3 - is what is currently displayed... > > > > > > > > > > > > > > > > > > > > > > > > > > - > > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > - > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Newbie question
ok... it is POST... all my forms are POSTS.. "Dejan Krsmanovic" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > What is the method for form? It should be POST, not GET. > Dejan > - Original Message - > From: "Jamesey" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Tuesday, March 11, 2003 4:34 PM > Subject: Re: Newbie question > > > > nope.. its just the property's of my Dynabean.. > > > > when i sumbit and the form posts that what i get.. > > > > > > "apachep2" <[EMAIL PROTECTED]> wrote in message > > news:[EMAIL PROTECTED] > > > Do you intentionally append id=3 to the url? > > > > > > -Original Message- > > > From: Jamesey [mailto:[EMAIL PROTECTED] > > > Sent: March 11, 2003 10:29 AM > > > To: [EMAIL PROTECTED] > > > Subject: Re: Newbie question > > > > > > I am doing a post... > > > > > > but the url still shows localhost/myapp/find.do?id=3 > > > > > > "Jarnot Voytek Contr AU HQ/SC" <[EMAIL PROTECTED]> wrote in > > > message > > > news:[EMAIL PROTECTED] > > > > do a post instead of a get > > > > > > > > -- > > > > Voytek Jarnot > > > > Quidquid latine dictum sit, altum viditur. > > > > > > > > > > > > > -Original Message- > > > > > From: James [mailto:[EMAIL PROTECTED] > > > > > Sent: Tuesday, March 11, 2003 9:23 AM > > > > > To: [EMAIL PROTECTED] > > > > > Subject: Newbie question > > > > > > > > > > > > > > > How can i mask the url in the browser so the user does not > > > > > see the request > > > > > parameters..? > > > > > > > > > > ie /localhost/myapp/find?id=3 - is what is currently displayed... > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > - > > > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > - > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > - > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Oracle Data Source Config
Maybe I should clarify my question. The Weblogic connection pool works fine, the problem is that it returns a Weblogic connection object which is not suitable for use by OracleXMLQuery. I must have an Oracle connection object, such as OracleConnectionPoolDataSource for OracleXMLQuery to behave properly. My question is basicly, does anyone have a good way to implement Oracle connection pooling with Struts? Thanks. Marco Tedone wrote: If Weblogic release a connection pool under a jndi name, you can get a connection from the pool. I've done it with Jboss. -Original Message- From: Austin Lowry [mailto:[EMAIL PROTECTED] Sent: Monday, March 10, 2003 4:09 PM To: [EMAIL PROTECTED] Subject: Oracle Data Source Config I've hit a bump in the road with my development because I have to be able to use an Oracle connection in order to use a class vital to my application. This made my Weblogic connection pool unusable because it uses it's own connection objects that use the Oracle driver. I think my best option at this point is to use the Struts . Does anyone have any experience with using Oracle and OracleConnectionPoolDataSource or OracleConnectionCacheImpl? I'm not really sure how to set this up and make sure I get back an Oracle connection object that I can use. Also, is there a better way to implement the connection pool and still return an Oracle connection object than through Struts? Thanks for your help. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Getting reference to ActionForward dynamically how?????
Hello,
Is it possible to get reference to ActionForward object dynamically,
not by giving findForward method it's name?
If Struts-config.xml is following:
Can I get name frontpage dynamically not hardcoded or is it possible
to use /app/login to create a new ActionForward instance?
Something like
return new ActionForward("/app/login");
- br
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Re: Getting reference to ActionForward dynamically how?????
Hello Rick,
Tuesday, March 11, 2003, 4:48:29 PM, you wrote:
RA> Hello,
RA> Is it possible to get reference to ActionForward object dynamically,
RA> not by giving findForward method it's name?
RA> If Struts-config.xml is following:
RA>
RA>
RA> Can I get name frontpage dynamically not hardcoded or is it possible
RA> to use /app/login to create a new ActionForward instance?
RA> Something like
RA> return new ActionForward("/app/login");
Try something like:
ActionForward forward = new ActionForward(mapping.findForward("frontpage").getPath());
Then use
ConvertUtils
from Struts-Scaffold to add your param.
RA> - br
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--
Best regards,
Dirk
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comparing strings with tags/online reference
Hi, All: How do you compare strings (if you can) with JSTL? I am having trouble finding a good online reference (if anyone knows of one, please let me know). I have a string that I am getting from an object that is in a collection in one of my forms. I have used the c:choose and c:if core JSTL successfully but only with a boolean value (here is an example): ... The only problem is that I used this test with one value of boolean type. Now I know that I have to make the c:when (or c:if) test attribute resolve to a boolean condition: how can I use this (or similar tag) to do a string compare? I guess a big issue for me is finding a good online reference since I am new to JSTL. Any help would be great. Thanks, John - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Newbie question
in fact the html:form action='blah blah' defaults to post.. and i'm sure its doing it cos i've viewed the source.. so now i wondering why the jiminy blazes i'm still getting parameterized urls... aaaragh "Dejan Krsmanovic" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > What is the method for form? It should be POST, not GET. > Dejan > - Original Message - > From: "Jamesey" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Tuesday, March 11, 2003 4:34 PM > Subject: Re: Newbie question > > > > nope.. its just the property's of my Dynabean.. > > > > when i sumbit and the form posts that what i get.. > > > > > > "apachep2" <[EMAIL PROTECTED]> wrote in message > > news:[EMAIL PROTECTED] > > > Do you intentionally append id=3 to the url? > > > > > > -Original Message- > > > From: Jamesey [mailto:[EMAIL PROTECTED] > > > Sent: March 11, 2003 10:29 AM > > > To: [EMAIL PROTECTED] > > > Subject: Re: Newbie question > > > > > > I am doing a post... > > > > > > but the url still shows localhost/myapp/find.do?id=3 > > > > > > "Jarnot Voytek Contr AU HQ/SC" <[EMAIL PROTECTED]> wrote in > > > message > > > news:[EMAIL PROTECTED] > > > > do a post instead of a get > > > > > > > > -- > > > > Voytek Jarnot > > > > Quidquid latine dictum sit, altum viditur. > > > > > > > > > > > > > -Original Message- > > > > > From: James [mailto:[EMAIL PROTECTED] > > > > > Sent: Tuesday, March 11, 2003 9:23 AM > > > > > To: [EMAIL PROTECTED] > > > > > Subject: Newbie question > > > > > > > > > > > > > > > How can i mask the url in the browser so the user does not > > > > > see the request > > > > > parameters..? > > > > > > > > > > ie /localhost/myapp/find?id=3 - is what is currently displayed... > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > - > > > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > - > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > - > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: comparing strings with tags/online reference
use eq or == On Tuesday 11 March 2003 4:03 pm, Curley, John wrote: > Hi, All: > > How do you compare strings (if you can) with JSTL? I am having trouble > finding a good online reference (if anyone knows of one, please let me > know). > > I have a string that I am getting from an object that is in a collection in > one of my forms. > > I have used the c:choose and c:if core JSTL successfully but only with a > boolean value (here is an example): > > > > > > > > > > > > > > ... > > The only problem is that I used this test with one value of boolean type. > Now I know that I have to make the c:when (or c:if) test attribute resolve > to a boolean condition: how can I use this (or similar tag) to do a string > compare? > > I guess a big issue for me is finding a good online reference since I am > new to JSTL. > > Any help would be great. > > Thanks, > John > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: comparing strings with tags/online reference
have you seen this: http://www.manning.com/bayern/appendixA.pdf the last example on this page has the answer you need: http://www-106.ibm.com/developerworks/java/library/j-jstl0211.html -- Voytek Jarnot Quidquid latine dictum sit, altum viditur. > -Original Message- > From: Curley, John [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 11, 2003 10:03 AM > To: 'Struts Users Mailing List' > Subject: comparing strings with tags/online reference > > > > Hi, All: > > How do you compare strings (if you can) with JSTL? I am > having trouble > finding a good online reference (if anyone knows of one, please let me > know). > > I have a string that I am getting from an object that is in a > collection in > one of my forms. > > I have used the c:choose and c:if core JSTL successfully but > only with a > boolean value (here is an example): > > > > > > > > > > > > > > ... > > The only problem is that I used this test with one value of > boolean type. > Now I know that I have to make the c:when (or c:if) test > attribute resolve > to a boolean condition: how can I use this (or similar tag) > to do a string > compare? > > I guess a big issue for me is finding a good online reference > since I am new > to JSTL. > > Any help would be great. > > Thanks, > John > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: The Back button on on multi-page forms ??????
You can use : With this tags in your header, a lot of browsers will not keep the page in their cache. So when the user will use the back button, the browser will re-submit the request to the server. It can help to know where the user is in your webapp. Arnaud > -Message d'origine- > De : apachep2 [mailto:[EMAIL PROTECTED] > Envoye : mardi 11 mars 2003 16:15 > A : 'Struts Users Mailing List' > Objet : RE: The Back button on on multi-page forms ?? > > > Does IRS give me a chance hitting Back, re-filing last year's tax form > and re-submitting it? :) > > -Original Message- > From: Bueno Carlos M [mailto:[EMAIL PROTECTED] > Sent: March 10, 2003 10:27 PM > To: 'Struts Users Mailing List' > Subject: RE: The Back button on on multi-page forms ?? > > I may be way off here, but how about coding defensively? This > isn't some > special java-struts problem; it's the price of maintaining > the illusion > of a > session over HTTP. > > Form tokens are a good idea but the user can and will click that pesky > back > button to change what they inputted. One of two things will > happen: the > browser calls up the form from cache and fills in the values > or it makes > a > new HTTP request, which will give them a blank form. Since they have > already > submitted once, you have that data somewhere. So populate the dang > form > if the data exists. Simple? Simple. > > It doesn't have to be complicated. A properly-built state machine (ie, > your > session or action code) should ignore input that can corrupt its > internals. > Check the state you are about to change -- if it's already changed, go > to > the next step, merge it or whatever is the Right Thing To Do. > If you app > is > so fragile that someone clicking ye olde back button will > mess things up > you > should look for ways to improve and simplify your design, not some > clever > client hack. > > My reasoning is this: as soon as you plug one hole another > will open up. > Say > you disable the back button. What happens if the user clicks submit > twice? > What happens if they press CTRL-N and now have two windows > with the same > session? > > 1. Users will always do what you don't expect. > > 2. The average user is pretty dumb. > > 3. Half of all users are even dumber than *that*. > > 4. Browsers work for them, not for you. > > -- los > > -Original Message- > From: Andrew Hill [mailto:[EMAIL PROTECTED] > Sent: Monday, March 10, 2003 9:39 PM > To: Struts Users Mailing List > Subject: RE: The Back button on on multi-page forms ?? > > > > Remember that the back button does not contact the server > > > Some do sometimes - but Im not sure under what cicumstances - probably > depends on what sort of caching setting you have set up in > your browser > - > and what browser it is - and the alignment of neptune and saturn etc.. > (ie: > nothing you can rely on server side). Ive seen it happen. > > At the moment Im using the evil javascript location.replace trick to > avoid > pages going into the history where possible. People who hit the back > button > end up back on the login page... > > I really wanted to give them an electric shock to help the > "back is bad" > concept sink in properly, but alas! - the hardware isnt in place to > administer this form of 'interactive user training' :-( > > -Original Message- > From: David Graham [mailto:[EMAIL PROTECTED] > Sent: Tuesday, 11 March 2003 06:17 > To: [EMAIL PROTECTED] > Subject: RE: The Back button on on multi-page forms ?? > > > Then that is a browser specific issue. When I hit the back button in > Opera, > all of the form fields are just how I entered them. Remember that the > back > button does not contact the server so Struts has nothing to do with > this. > > David > > > > >From: "Ron Day" <[EMAIL PROTECTED]> > >Reply-To: "Struts Users Mailing List" > <[EMAIL PROTECTED]> > >To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > >Subject: RE: The Back button on on multi-page forms ?? > >Date: Mon, 10 Mar 2003 16:08:10 -0600 > > > >sorry, I think we are going in circles. > > > >This is a multipage form (3 to be exact but with only one > actionform), > BUT > >my whole original issue was: > > > >When they hit the back button the original form content IS either > absent or > >different to their last entries (I do a reset in the actionform0. > > > >Am I doing something wrong or is this a fact of life with the back > button. > > > >ron > > > >-Original Message- > >From: David Graham [mailto:[EMAIL PROTECTED] > >Sent: Monday, March 10, 2003 3:49 PM > >To: [EMAIL PROTECTED] > >Subject: RE: The Back button on on multi-page forms ?? > > > > > >If this is a multi-page form, then don't use tokens and let them use > the > >back button to correct the data. If it's a single page form, use > tokens > >and > >provide an update form where they can correct any mistakes > they made on > the > >add form. The difference is that the multi-page form will be > a
Re: Newbie question
Then you are probably doing redirection somwere in your action class... I am just guessing! Dejan - Original Message - From: "Jamesey" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, March 11, 2003 5:03 PM Subject: Re: Newbie question > in fact the html:form action='blah blah' defaults to post.. and i'm sure its > doing it cos i've viewed the source.. so now i wondering why the jiminy > blazes i'm still getting parameterized urls... > > aaaragh > > > "Dejan Krsmanovic" <[EMAIL PROTECTED]> wrote in message > news:[EMAIL PROTECTED] > > What is the method for form? It should be POST, not GET. > > Dejan > > - Original Message - > > From: "Jamesey" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Tuesday, March 11, 2003 4:34 PM > > Subject: Re: Newbie question > > > > > > > nope.. its just the property's of my Dynabean.. > > > > > > when i sumbit and the form posts that what i get.. > > > > > > > > > "apachep2" <[EMAIL PROTECTED]> wrote in message > > > > news:[EMAIL PROTECTED] > > > > Do you intentionally append id=3 to the url? > > > > > > > > -Original Message- > > > > From: Jamesey [mailto:[EMAIL PROTECTED] > > > > Sent: March 11, 2003 10:29 AM > > > > To: [EMAIL PROTECTED] > > > > Subject: Re: Newbie question > > > > > > > > I am doing a post... > > > > > > > > but the url still shows localhost/myapp/find.do?id=3 > > > > > > > > "Jarnot Voytek Contr AU HQ/SC" <[EMAIL PROTECTED]> wrote in > > > > message > > > > > news:[EMAIL PROTECTED] > > > > > do a post instead of a get > > > > > > > > > > -- > > > > > Voytek Jarnot > > > > > Quidquid latine dictum sit, altum viditur. > > > > > > > > > > > > > > > > -Original Message- > > > > > > From: James [mailto:[EMAIL PROTECTED] > > > > > > Sent: Tuesday, March 11, 2003 9:23 AM > > > > > > To: [EMAIL PROTECTED] > > > > > > Subject: Newbie question > > > > > > > > > > > > > > > > > > How can i mask the url in the browser so the user does not > > > > > > see the request > > > > > > parameters..? > > > > > > > > > > > > ie /localhost/myapp/find?id=3 - is what is currently displayed... > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > - > > > > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > > > > For additional commands, e-mail: > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > > - > > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > > - > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: DynaActionForm
Out of curiosity, couldn't something like the FastHashMap be used to implement this? Or does the second note in the JavaDocs (about not cross platform) keep it out? - Robert Craig R. McClanahan wrote: On Mon, 10 Mar 2003 [EMAIL PROTECTED] wrote: Date: Mon, 10 Mar 2003 17:07:29 -0700 From: [EMAIL PROTECTED] Reply-To: Struts Users Mailing List <[EMAIL PROTECTED]> To: 'Struts Users Mailing List' <[EMAIL PROTECTED]> Subject: DynaActionForm Hi, We are creating a derivitive of DynaActionForm that needs to add FormPropertyConfigs to the FormBeanConfig at runtime however are running into this frozen config thing. How can we get around this and why does Struts prevent this in the first place? Struts freezes the configuration information because it uses HashMaps to store the XxxConfig beans, and we don't want to have to synchronize on them for every request (such as FindActionConfig()) just on the off chance that someone might be trying to modify the configuration data. Freezing ensures that nobody will run into mysterious results from trying to read a HashMap that someone else is trying to modify. If you can calculate all your dynamic stuff at webapp startup time, you're still in luck -- the freeze happens after PlugIns are initialized, so you can use one of them to set up the stuff that was not in the config files. If you really need to modify these structures at runtime, you're going to need to create modified versions of the appropriate config classes -- and be sure you synchronize on the accesses (paying the inevitable performance cost of this). Thank you! Craig - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [Q] Log Viewing tool for Windows environment?
I am posting this summary for the benefit of any other newbies who might be anxiously following the thread looking for answers. To recap, there have been 3 distinct suggestions posted here: 1) Cygwin 2) GNUWin32 3) Textpad I probably invited the first two with my lament about missing "tail" from my Unix days. But I am firmly entrenched in my current Windows-based dev environment, so options 1 and 2 (which are tantamount to changing my shell system) are perhaps overkill for my personal needs. Textpad is not a bad solution, as it seems to do what I want. But in a perfect world, why should I have to hit Ctl-E if I don't have to? The winner (for my needs - your mileage may vary) is the invisible suggestion that came through private email from Bryan. He pointed me to Tail4Win which does exactly what I want. It reloads the file every time it changes and automatically scrolls to the end. So that is what I'm using - at least until the jEdit guys act on my suggestion to add a log-viewer mode to jEdit. Thanks to everyone for their suggestions. I'm sure each one is going to be exactly the right solution for some person following this thread. Jefficus - Original Message - From: "Jeff Smith" <[EMAIL PROTECTED]> To: "Struts Users Mailing List" <[EMAIL PROTECTED]> Sent: Monday, March 10, 2003 8:22 PM Subject: [Q] Log Viewing tool for Windows environment? > To date I have been using the brute-force log viewer: notepad. Is anybody > aware of a Windows app that monitors text log files (like output from log4j) > and automatically refreshes and scrolls to the end of the file? Such > functionality would make my test-debug cycle less mouse intensive. :-) > > In the UN*X world, I had the tail command for such purposes. But I've never > seen anything like this for Windows. > > Any suggestions? > > Jefficus > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Oracle Data Source Config
I would venture to say that just about any generic connection pooling library/implementation is going to wrap the underlying connection so that the pool can do its job, as they generally override the close() methods at the very least. Does the Oracle driver/connection have a specific method for executing the query? If it doesn't and it uses the basic executeQuery() type of methods on the JDBC statement, it would seem that it would work, since connection pool wrappers are just going to pass along the query to the underlying driver anyway, which would be your oracle one. If you have to use a specific method though, you might be out of luck. - Robert Austin Lowry wrote: Maybe I should clarify my question. The Weblogic connection pool works fine, the problem is that it returns a Weblogic connection object which is not suitable for use by OracleXMLQuery. I must have an Oracle connection object, such as OracleConnectionPoolDataSource for OracleXMLQuery to behave properly. My question is basicly, does anyone have a good way to implement Oracle connection pooling with Struts? Thanks. Marco Tedone wrote: If Weblogic release a connection pool under a jndi name, you can get a connection from the pool. I've done it with Jboss. -Original Message- From: Austin Lowry [mailto:[EMAIL PROTECTED] Sent: Monday, March 10, 2003 4:09 PM To: [EMAIL PROTECTED] Subject: Oracle Data Source Config I've hit a bump in the road with my development because I have to be able to use an Oracle connection in order to use a class vital to my application. This made my Weblogic connection pool unusable because it uses it's own connection objects that use the Oracle driver. I think my best option at this point is to use the Struts . Does anyone have any experience with using Oracle and OracleConnectionPoolDataSource or OracleConnectionCacheImpl? I'm not really sure how to set this up and make sure I get back an Oracle connection object that I can use. Also, is there a better way to implement the connection pool and still return an Oracle connection object than through Struts? Thanks for your help. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How define a DynaActionForm to display a collection ?
On Tue, 11 Mar 2003 16:37:38 +0100 Heligon Sandra <[EMAIL PROTECTED]> wrote: > Your example is for a "single" person. > But is it possible to define a DynaActionForm that > represents a collection of objects. > And how do the initialization of the DynaActionForm ? You can define a Collection in a DynaActionForm. I like to initialize these Collections in a SetUpAction that will populate my DynaActionForm before forwarding to the JSP page of interest. -- Rick Reumann - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Getting reference to ActionForward dynamically how?????
To dynamically create an ActionForward instance, you just call the
constructor of the ActionForward class.
Here's what I did from within my log-in action:
String path="/defaultPage.do?action=new";
ActionForward forward = new ActionForward(path, true);
return forward;
- GZ
-Original Message-
From: Rick Ashley [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 11, 2003 10:48 AM
To: [EMAIL PROTECTED]
Subject: Getting reference to ActionForward dynamically how?
Hello,
Is it possible to get reference to ActionForward object dynamically, not by
giving findForward method it's name?
If Struts-config.xml is following:
Can I get name frontpage dynamically not hardcoded or is it possible to use
/app/login to create a new ActionForward instance? Something like
return new ActionForward("/app/login");
- br
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Re: [Q] Log Viewing tool for Windows environment?
Where does one get Tail4Win? I searched Google for it and didn't find it. Cheers, Ivan - Original Message - From: "Jeff Smith" <[EMAIL PROTECTED]> To: "Struts Users Mailing List" <[EMAIL PROTECTED]> Sent: Tuesday, March 11, 2003 11:27 AM Subject: Re: [Q] Log Viewing tool for Windows environment? > I am posting this summary for the benefit of any other newbies who might be > anxiously following the thread looking for answers. > > To recap, there have been 3 distinct suggestions posted here: > 1) Cygwin > 2) GNUWin32 > 3) Textpad > > I probably invited the first two with my lament about missing "tail" from my > Unix days. But I am firmly entrenched in my current Windows-based dev > environment, so options 1 and 2 (which are tantamount to changing my shell > system) are perhaps overkill for my personal needs. > > Textpad is not a bad solution, as it seems to do what I want. But in a > perfect world, why should I have to hit Ctl-E if I don't have to? > > The winner (for my needs - your mileage may vary) is the invisible > suggestion that came through private email from Bryan. He pointed me to > Tail4Win which does exactly what I want. It reloads the file every time it > changes and automatically scrolls to the end. > > So that is what I'm using - at least until the jEdit guys act on my > suggestion to add a log-viewer mode to jEdit. > > Thanks to everyone for their suggestions. I'm sure each one is going to be > exactly the right solution for some person following this thread. > > Jefficus > > - Original Message - > From: "Jeff Smith" <[EMAIL PROTECTED]> > To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > Sent: Monday, March 10, 2003 8:22 PM > Subject: [Q] Log Viewing tool for Windows environment? > > > > To date I have been using the brute-force log viewer: notepad. Is anybody > > aware of a Windows app that monitors text log files (like output from > log4j) > > and automatically refreshes and scrolls to the end of the file? Such > > functionality would make my test-debug cycle less mouse intensive. :-) > > > > In the UN*X world, I had the tail command for such purposes. But I've > never > > seen anything like this for Windows. > > > > Any suggestions? > > > > Jefficus > > > > > > - > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: relative path problem
I find that paths can be stated as absolute, from the root of my web-app. So, for example, my style sheets are linked as: This seems to work, but it introduces a secondary problem. What if I change the name of my app? I suppose I could always put the app-name as a constant and reference it that way... I have seen a couple of examples that use "./styles/default.css" so I am assuming that works too. But I haven't actually tried changing my references yet. That would solve my secondary problem as well as your initial one. Hope that helps, Jefficus - Original Message - From: "bobd" <[EMAIL PROTECTED]> To: "Struts Users Mailing List" <[EMAIL PROTECTED]> Sent: Monday, March 10, 2003 11:52 PM Subject: relative path problem > This is a rather silly problem I have been putting off > and now I really need to fix it... > > In my Struts app, bean classes are parsing and writing > XML files on disk. These files are currently being > pulled in using a full directory path! (i.e. > "/usr/local/...) Attempts to use relative paths (from > the location of the bean .class file) have not been > successful. In my view layer, JSPs can use relative > paths just fine. What's the trick? > > thanks, > > -bob > > __ > Do you Yahoo!? > Yahoo! Web Hosting - establish your business online > http://webhosting.yahoo.com > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: How define a DynaActionForm to display a collection ?
Has someone an example of struts-config.xml file and a such SetUpAction with DynaActionForm and Collection ? --- As of February 12, 2003 Thomson unifies its email addresses on a worldwide basis.Please note my new email address: [EMAIL PROTECTED] Thomson is the leader in solutions and technologies for the entertainment and media industries and serves its customers under its four strategic brands: Technicolor, Grass Valley, RCA and THOMSON. More about Thomson: http://www.thomson.net/videochain Original Message- From: Rick Reumann [mailto:[EMAIL PROTECTED] Sent: 11 March 2003 17:31 To: Struts Users Mailing List Subject: Re: How define a DynaActionForm to display a collection ? On Tue, 11 Mar 2003 16:37:38 +0100 Heligon Sandra <[EMAIL PROTECTED]> wrote: > Your example is for a "single" person. > But is it possible to define a DynaActionForm that > represents a collection of objects. > And how do the initialization of the DynaActionForm ? You can define a Collection in a DynaActionForm. I like to initialize these Collections in a SetUpAction that will populate my DynaActionForm before forwarding to the JSP page of interest. -- Rick Reumann - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [Q] Log Viewing tool for Windows environment?
You don't have to hit anything, when Textpad detects that the source file it is displaying has been updated, by default it prompts you to refresh, but this is configurable to these choices: 1. Prompt 2. Auto-Refresh 3. Ignore I leave this setting at 'Prompt', which is really handy when: A) I want to see the new changes immediately (log files, output from tests, whatever) or B) I can keep the old copy when I really screwed something up (like accidentally updating a file in cvs that had changes that weren't checked in yet, but that *never* happens.honest :P ) -- James Mitchell Software Developer/Struts Evangelist http://struts.sourceforge.net/struts-atlanta/ > -Original Message- > From: Jeff Smith [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 11, 2003 11:27 AM > To: Struts Users Mailing List > Subject: Re: [Q] Log Viewing tool for Windows environment? > > > I am posting this summary for the benefit of any other > newbies who might be > anxiously following the thread looking for answers. > > To recap, there have been 3 distinct suggestions posted here: > 1) Cygwin > 2) GNUWin32 > 3) Textpad > > I probably invited the first two with my lament about missing > "tail" from my > Unix days. But I am firmly entrenched in my current Windows-based dev > environment, so options 1 and 2 (which are tantamount to > changing my shell > system) are perhaps overkill for my personal needs. > > Textpad is not a bad solution, as it seems to do what I want. But in a > perfect world, why should I have to hit Ctl-E if I don't have to? > > The winner (for my needs - your mileage may vary) is the invisible > suggestion that came through private email from Bryan. He > pointed me to > Tail4Win which does exactly what I want. It reloads the file > every time it > changes and automatically scrolls to the end. > > So that is what I'm using - at least until the jEdit guys act on my > suggestion to add a log-viewer mode to jEdit. > > Thanks to everyone for their suggestions. I'm sure each one > is going to be > exactly the right solution for some person following this thread. > > Jefficus > > - Original Message - > From: "Jeff Smith" <[EMAIL PROTECTED]> > To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > Sent: Monday, March 10, 2003 8:22 PM > Subject: [Q] Log Viewing tool for Windows environment? > > > > To date I have been using the brute-force log viewer: > notepad. Is anybody > > aware of a Windows app that monitors text log files (like > output from > log4j) > > and automatically refreshes and scrolls to the end of the file? Such > > functionality would make my test-debug cycle less mouse > intensive. :-) > > > > In the UN*X world, I had the tail command for such > purposes. But I've > never > > seen anything like this for Windows. > > > > Any suggestions? > > > > Jefficus > > > > > > > - > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [OT]: Struts, Web Development, J2EE, and what is too much?
Tony made some good points, and my take is that from your requirements, you may not need EJBs. However, if you layered your app sufficiently, then if you end up needing them later on, it shouldn't be too much of a problem. Of course I am assuming you are referring to Entity beans in this case... As for when to use EJBs, what I have always recommended to our clients is that EJBs are good for large scale applications that run on clustered machines and require transactions at the entity bean level. The transactions are good if you have multiple apps and clients that are modifying the same data. If your app is largely read only, it is the only one interacting with the data and you aren't worried about concurrent modifcation, then you probably don't need entity beans. Yes, most app servers can cache and mark entity beans as read-only or mostly read-only for performance, but there are other ways of doing the same thing. Another thing to consider is how your object model is designed. If you have lots of inheritance, entity beans aren't going to fit you well. Same can be said if you have complex query requirements (joins, relationships that the object model doesn't support, etc.). Then again, in some cases as Nash pointed out, EJBs can be simplier from the perspective that any good app server can build the database for you and with tools like XDoclet, you don't have to write deployment descriptors and you don't have to maintain (i.e. code) the interfaces for home, remote and local. - Robert Aaron O'Hara wrote: I know this question has probably been asked before, and that biased publications have had their opinions on it, but I wanted to get some feedback regarding some "real user experience" regarding the use of EJB in a web application used along with Struts. I am creating a web application and I have decided to use struts. The application needs to be high performance, uses a single database (so it doesn't have heterogeneous transactional db requirements). I have designed the application in layers, and it will only have a web interface. It's starting small, but will grow to have many functions. Even though I'm confident that I need not invest in EJB's, I don't want to develop the application to find out I should have used them (hence why I'm creating this post). In what scenarios have people found the use of EJB beneficial? When have they been overkill? Does struts integrate smoothly with EJBs? My fear is that I'll make the application overly complex by implementing EJBs, but I'd like to hear from people with experience building large web-only projects with struts. Thanks, Aaron - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Logic tags and collections?
How can I make something like this with Struts or someone have better idea?
I have few Admin: MainAdmin, UserAdmin, EmailAdmin.
MainAdmin can do anything, UserAdmin manage users and emails, and EmailAdmin
make emails only.
So, I need this:
-without Struts, I make Collection in session and
If session.getAdminTypeCollection contain MainAdmin {
do something
If session.getAdminTypeCollection contain UserAdmin OR MainAdmin {
do something
If session.getAdminTypeCollection contain EmailAdmin OR UserAdmin OR
MainAdmin {
do something
} End EmailAdmin
} End UserAdmin
} End MainAdmin
For MainAdmin Collection:
Collection.add(MainAdmin)
Collection.add(UserAdmin)
Collection.add(EmailAdmin)
For UserAdmin Collection:
Collection.add(UserAdmin)
Collection.add(EmailAdmin)
For EmailAdmin Collection:
Collection.add(EmailAdmin)
-do something are links
MainAdmin see all links
UserAdmin see UserAdmin and EmailAdmin links
EmailAdmin only EmailAdmin links
I can't use role or principal or anything from JAAS.
So, I need somehow to check Coolection with logic:present or some others
tags?
Thanks.
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Re: [ANN] Struttin' With Struts beta (newbies esp. welcome)
Rick, Good job, somehow I can't unzip war files, I am getting corrupt zip file exception. Mark. Rick Reumann wrote: > I created a web site that walks new Struts users step by step > through the development of three VERY simple web applications in three > lessons. Each lesson adds a few more features so that they build upon > each other yet each stands alone such that if you follow the steps in > any lesson you'll have built a very basic application regardless of > which lesson you start with. > > I created these because there seemed to be lacking some more recent > "walk through" Struts tutorials geared toward the very new Struts > developer. I think real newbies will find them especially useful, but > then again I could be way wrong:) > > I'm considering the site a "beta" because I'm sure there will be some > mistakes. If anyone sees something I'm doing in a lesson that is way > off (or a very bad practice) please let me know. Some of the stuff I > know could be done in a more "best practice" way, but for the sake of > trying to also keep the lessons small and simple some ideas weren't > included (ie- I didn't use a constants interface for my forward > definitions). > > If anyone wants to contribute, reword, or add anything please let me > know. The site is there to help others. I got really lazy in a lot of > places and didn't say much about certain things that I would have liked > to. Hopefully over time the site will improve. > > Struttin' with Struts: > > http://www.reumann.net/do/struts/main > > -- > Rick > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] -- NOTICE: If received in error, please destroy and notify sender. Sender does not waive confidentiality or privilege, and use is prohibited. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How define a DynaActionForm to display a collection ?
i believe not i'd take a look at the responses and then look at writing
an ActionForm if you must poulate you form from the action form...
I would still recommend that you maniplate forms from your action, my
understanding this is the way of doing this...
If you question was charatistically is can anyone do my work for me
then I guess that may also be no..
Here's my straight forward example again..
in action
DynaActionForm theForm = (DynaActionForm) form;
theForm.set("firstName",myValue);
that should be what you need
if you were populating form db results you would iterate through your
query in the action and populate your form
while(rs.next()) {
theForm.set("firstName",rs.getString("first_name");
}
Martedì, 11 mar 2003, alle 17:36 Europe/Rome, Heligon Sandra ha scritto:
Has someone an example of struts-config.xml file and
a such SetUpAction with DynaActionForm and Collection ?
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Original Message-
From: Rick Reumann [mailto:[EMAIL PROTECTED]
Sent: 11 March 2003 17:31
To: Struts Users Mailing List
Subject: Re: How define a DynaActionForm to display a collection ?
On Tue, 11 Mar 2003 16:37:38 +0100
Heligon Sandra <[EMAIL PROTECTED]> wrote:
Your example is for a "single" person.
But is it possible to define a DynaActionForm that
represents a collection of objects.
And how do the initialization of the DynaActionForm ?
You can define a Collection in a DynaActionForm. I like to initialize
these Collections in a SetUpAction that will populate my DynaActionForm
before forwarding to the JSP page of interest.
--
Rick Reumann
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Re: Oracle Data Source Config
Apparently there is some portion of the Oracle connection that the OracleXMLQuery class needs. To quote Oracle support: "Must use an Oracle connection pool and not the web logic pool. Because the XML API requires an Oracle conn object." My current approach is going to be to initialize an Oracle connection pool that utilizes OracleConnectionCacheImpl from a servlet at server startup and placing it in the servlet context. (Thanks to Claude for your help here.) This introduces another problem in that I will have to pass the connection to my business objects from my action classes, but I think it will work. Any ideas are welcome. Thanks. ~Austin Robert McIntosh wrote: I would venture to say that just about any generic connection pooling library/implementation is going to wrap the underlying connection so that the pool can do its job, as they generally override the close() methods at the very least. Does the Oracle driver/connection have a specific method for executing the query? If it doesn't and it uses the basic executeQuery() type of methods on the JDBC statement, it would seem that it would work, since connection pool wrappers are just going to pass along the query to the underlying driver anyway, which would be your oracle one. If you have to use a specific method though, you might be out of luck. - Robert Austin Lowry wrote: Maybe I should clarify my question. The Weblogic connection pool works fine, the problem is that it returns a Weblogic connection object which is not suitable for use by OracleXMLQuery. I must have an Oracle connection object, such as OracleConnectionPoolDataSource for OracleXMLQuery to behave properly. My question is basicly, does anyone have a good way to implement Oracle connection pooling with Struts? Thanks. Marco Tedone wrote: If Weblogic release a connection pool under a jndi name, you can get a connection from the pool. I've done it with Jboss. -Original Message- From: Austin Lowry [mailto:[EMAIL PROTECTED] Sent: Monday, March 10, 2003 4:09 PM To: [EMAIL PROTECTED] Subject: Oracle Data Source Config I've hit a bump in the road with my development because I have to be able to use an Oracle connection in order to use a class vital to my application. This made my Weblogic connection pool unusable because it uses it's own connection objects that use the Oracle driver. I think my best option at this point is to use the Struts . Does anyone have any experience with using Oracle and OracleConnectionPoolDataSource or OracleConnectionCacheImpl? I'm not really sure how to set this up and make sure I get back an Oracle connection object that I can use. Also, is there a better way to implement the connection pool and still return an Oracle connection object than through Struts? Thanks for your help. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Logic tags and collections?
Try struts menu http://sourceforge.net/project/struts-menu.
Edgar
> -Original Message-
> From: niksa_os [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, March 11, 2003 11:37 AM
> To: 'Struts Users Mailing List'
> Subject: Logic tags and collections?
>
>
> How can I make something like this with Struts or someone
> have better idea?
>
> I have few Admin: MainAdmin, UserAdmin, EmailAdmin.
> MainAdmin can do anything, UserAdmin manage users and emails,
> and EmailAdmin make emails only.
>
> So, I need this:
> -without Struts, I make Collection in session and
>
> If session.getAdminTypeCollection contain MainAdmin {
> do something
> If session.getAdminTypeCollection contain UserAdmin OR MainAdmin {
> do something
> If session.getAdminTypeCollection contain EmailAdmin OR
> UserAdmin OR MainAdmin {
> do something
> } End EmailAdmin
> } End UserAdmin
> } End MainAdmin
>
> For MainAdmin Collection:
> Collection.add(MainAdmin)
> Collection.add(UserAdmin)
> Collection.add(EmailAdmin)
>
> For UserAdmin Collection:
> Collection.add(UserAdmin)
> Collection.add(EmailAdmin)
>
> For EmailAdmin Collection:
> Collection.add(EmailAdmin)
>
> -do something are links
>
> MainAdmin see all links
> UserAdmin see UserAdmin and EmailAdmin links
> EmailAdmin only EmailAdmin links
>
> I can't use role or principal or anything from JAAS.
>
> So, I need somehow to check Coolection with logic:present or
> some others tags?
>
> Thanks.
>
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File Upload problem and Size Validation
Hi all, I am havig a problem on FileUploads in RC1...This problem occurs when I use the FormFile feature of struts. If the size of the file is lesser than the limit specified by the controller, everything seems to work fine...but when the size exceeds the limit then it fails on the validate() method of the form. But it does not redirect back to the same page. It returns to any empty page. The log level of debug shows correct redirects and even debug statements on the jsp prints out.. I dont know what the error could be. I even tried the same thing with the struts-upload webapp that comes with RC1 and it was doing the same thing. Any suggestions.?? Thanks Hemanth - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Oracle Data Source Config
Well that sucks. Putting the Oracle cache in the servlet context is a good alternative though. A simple Struts plugin would be an elegant way to do that I would think. - Robert Austin Lowry wrote: Apparently there is some portion of the Oracle connection that the OracleXMLQuery class needs. To quote Oracle support: "Must use an Oracle connection pool and not the web logic pool. Because the XML API requires an Oracle conn object." My current approach is going to be to initialize an Oracle connection pool that utilizes OracleConnectionCacheImpl from a servlet at server startup and placing it in the servlet context. (Thanks to Claude for your help here.) This introduces another problem in that I will have to pass the connection to my business objects from my action classes, but I think it will work. Any ideas are welcome. Thanks. ~Austin Robert McIntosh wrote: I would venture to say that just about any generic connection pooling library/implementation is going to wrap the underlying connection so that the pool can do its job, as they generally override the close() methods at the very least. Does the Oracle driver/connection have a specific method for executing the query? If it doesn't and it uses the basic executeQuery() type of methods on the JDBC statement, it would seem that it would work, since connection pool wrappers are just going to pass along the query to the underlying driver anyway, which would be your oracle one. If you have to use a specific method though, you might be out of luck. - Robert Austin Lowry wrote: Maybe I should clarify my question. The Weblogic connection pool works fine, the problem is that it returns a Weblogic connection object which is not suitable for use by OracleXMLQuery. I must have an Oracle connection object, such as OracleConnectionPoolDataSource for OracleXMLQuery to behave properly. My question is basicly, does anyone have a good way to implement Oracle connection pooling with Struts? Thanks. Marco Tedone wrote: If Weblogic release a connection pool under a jndi name, you can get a connection from the pool. I've done it with Jboss. -Original Message- From: Austin Lowry [mailto:[EMAIL PROTECTED] Sent: Monday, March 10, 2003 4:09 PM To: [EMAIL PROTECTED] Subject: Oracle Data Source Config I've hit a bump in the road with my development because I have to be able to use an Oracle connection in order to use a class vital to my application. This made my Weblogic connection pool unusable because it uses it's own connection objects that use the Oracle driver. I think my best option at this point is to use the Struts . Does anyone have any experience with using Oracle and OracleConnectionPoolDataSource or OracleConnectionCacheImpl? I'm not really sure how to set this up and make sure I get back an Oracle connection object that I can use. Also, is there a better way to implement the connection pool and still return an Oracle connection object than through Struts? Thanks for your help. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Oracle Data Source Config
This introduces another problem in that I will have to pass the connection to my business objects from my action classes, but I think it will work. Any ideas are welcome. Thanks. You can either put the DataSource in JNDI for your business objects to look up or pass the DataSource into the business layer directly. There's no reason to pass Connection objects into the business layer. David _ The new MSN 8: advanced junk mail protection and 2 months FREE* http://join.msn.com/?page=features/junkmail - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: ActionServlet Action caching problem
Found it. Turns out it wasn't a caching problem at all. I have a threaded job manager that was being used by this action class. There was a weird exception being thrown that wasn't getting caught which was locking the thread. This action was getting reused by Struts, but never did anything because it was still blocking on the locked thread. I've fixed it and learned much, but is there any way to get more control over the caching? Do you have to subclass ActionServlet or the RequestProcessor to do that? I would think there would be instances where you would want a pool of actions instead of only one instance of each. Once this release gets out I'm going to look at it more, but I was just curious about whether anybody has looked into this. Jeff. -Original Message- From: Whitmire, Jeffrey [mailto:[EMAIL PROTECTED] Sent: Monday, March 10, 2003 4:07 PM To: '[EMAIL PROTECTED]' Subject: ActionServlet Action caching problem I've got a weird one. I'm hoping that somebody else has encountered this before and can help. We are in the midst of load testing our app before rolling it out to production. I have one action class (only one) that starts failing well over an hour into the test. It appears that the instance of that action class cached by the ActionServlet becomes invalid. I can see no reason why the change in behaviour, but at some point the RequestProcessor gets an instance to the Action that is no longer valid. It is not null, but it never executes it. The rest of the app works perfectly, but that button (tied to that specific Action) never works again until the tomcat instance is restarted. It just hangs, and the last indication in the log is the RequestProcessor finding and returning an instance of that action class. Has anyone ever had problems with Action instances going stale? or some other config problem that could cause this? Thanks, I'm a bit desparate, Jeff. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How define a DynaActionForm to display a collection ?
On Tue, 11 Mar 2003 17:36:09 +0100
Heligon Sandra <[EMAIL PROTECTED]> wrote:
> Has someone an example of struts-config.xml file and
> a such SetUpAction with DynaActionForm and Collection ?
In a form-bean declarations, where YourDyanForm is a subclass of a
DynaActionForm(DynaValidatorForm):
{ snip }
{ snip }
Then in you Action class...
execute(..) {
ArrayList someList = someBusinessClass.getMeListOfObjectsIneed();
formBean.set("myCollection" someList );
//forward to jsp page
}
The reason you'll want to subclass DynaActionForm is if you do some
validation you probably will have to override the reset method.
--
Rick Reumann
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Re: DynaActionForm
Hi, We have put our code that manipulates the FormBeanConfigs in the init() method of our custom Plugin which is called before freeze. Our code adds some FormPropertyConfigs to the FormBeanConfigs. However we now get errors that the new property configs that we defined do not exist when calls are made to getDynaClass().getDynaProperty() because it appears that the introspect() method on DynaActionFormClass is called once which populates the dyna properties hash table/map in in DynaActionFormClass before init() on our plugin is called. How can we get the DynaActionFormClass for the DynaActionForm's configs that we are modifying to essentially re-introspect and rebuild their dyna properties themselves with our updated FormBeanConfigs? Karina "Craig R. McClanahan" <[EMAIL PROTECTED]> 03/10/2003 07:55 PM Please respond to "Struts Users Mailing List" To: Struts Users Mailing List <[EMAIL PROTECTED]> cc: Subject:Re: DynaActionForm On Mon, 10 Mar 2003 [EMAIL PROTECTED] wrote: > Date: Mon, 10 Mar 2003 17:07:29 -0700 > From: [EMAIL PROTECTED] > Reply-To: Struts Users Mailing List <[EMAIL PROTECTED]> > To: 'Struts Users Mailing List' <[EMAIL PROTECTED]> > Subject: DynaActionForm > > Hi, > We are creating a derivitive of DynaActionForm that needs to add > FormPropertyConfigs to the FormBeanConfig at runtime however are running > into this frozen config thing. How can we get around this and why does > Struts prevent this in the first place? > Struts freezes the configuration information because it uses HashMaps to store the XxxConfig beans, and we don't want to have to synchronize on them for every request (such as FindActionConfig()) just on the off chance that someone might be trying to modify the configuration data. Freezing ensures that nobody will run into mysterious results from trying to read a HashMap that someone else is trying to modify. If you can calculate all your dynamic stuff at webapp startup time, you're still in luck -- the freeze happens after PlugIns are initialized, so you can use one of them to set up the stuff that was not in the config files. If you really need to modify these structures at runtime, you're going to need to create modified versions of the appropriate config classes -- and be sure you synchronize on the accesses (paying the inevitable performance cost of this). > Thank you! Craig - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [ANN] Struttin' With Struts beta (newbies esp. welcome)
On Tue, 11 Mar 2003 11:53:39 -0500 Mark Zeltser <[EMAIL PROTECTED]> wrote: > Good job, somehow I can't unzip war files, I am getting corrupt zip > file exception. I haven't tried to unzip a war file on Windows. Can you rename it to .zip and see what happens? You should just be able to plop it in your webapps directory and it'll expand for you. > > Struttin' with Struts: > > > > http://www.reumann.net/do/struts/main -- Rick Reumann - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: DynaActionForm
A followup to the post below. To attempt to re-initialize the DynaProperties on DynaActionFormClass we are calling DynaActionFormClass.createDynaActionFormClass(FormBeanConfig) This method seems misleading, since what it actually does is simply get an existing DynaActionFormClass and only creates it if it does not already exist. Hence why trying to re-create it does not work after manipulating our FormBeanConfig in init() in the plugin. seems like this could be called getDynaActionFormClass(FormBeanConfig) which could then call createDynaActionFormClass(FormBeanConfig) to actually create it if it does not exist. This would allow developers to force it to re-create when needed by calling the createDynaActionFormClass method. [EMAIL PROTECTED] 03/11/2003 10:23 AM Please respond to "Struts Users Mailing List" To: "Struts Users Mailing List" <[EMAIL PROTECTED]> cc: [EMAIL PROTECTED] Subject:Re: DynaActionForm Hi, We have put our code that manipulates the FormBeanConfigs in the init() method of our custom Plugin which is called before freeze. Our code adds some FormPropertyConfigs to the FormBeanConfigs. However we now get errors that the new property configs that we defined do not exist when calls are made to getDynaClass().getDynaProperty() because it appears that the introspect() method on DynaActionFormClass is called once which populates the dyna properties hash table/map in in DynaActionFormClass before init() on our plugin is called. How can we get the DynaActionFormClass for the DynaActionForm's configs that we are modifying to essentially re-introspect and rebuild their dyna properties themselves with our updated FormBeanConfigs? Karina "Craig R. McClanahan" <[EMAIL PROTECTED]> 03/10/2003 07:55 PM Please respond to "Struts Users Mailing List" To: Struts Users Mailing List <[EMAIL PROTECTED]> cc: Subject:Re: DynaActionForm On Mon, 10 Mar 2003 [EMAIL PROTECTED] wrote: > Date: Mon, 10 Mar 2003 17:07:29 -0700 > From: [EMAIL PROTECTED] > Reply-To: Struts Users Mailing List <[EMAIL PROTECTED]> > To: 'Struts Users Mailing List' <[EMAIL PROTECTED]> > Subject: DynaActionForm > > Hi, > We are creating a derivitive of DynaActionForm that needs to add > FormPropertyConfigs to the FormBeanConfig at runtime however are running > into this frozen config thing. How can we get around this and why does > Struts prevent this in the first place? > Struts freezes the configuration information because it uses HashMaps to store the XxxConfig beans, and we don't want to have to synchronize on them for every request (such as FindActionConfig()) just on the off chance that someone might be trying to modify the configuration data. Freezing ensures that nobody will run into mysterious results from trying to read a HashMap that someone else is trying to modify. If you can calculate all your dynamic stuff at webapp startup time, you're still in luck -- the freeze happens after PlugIns are initialized, so you can use one of them to set up the stuff that was not in the config files. If you really need to modify these structures at runtime, you're going to need to create modified versions of the appropriate config classes -- and be sure you synchronize on the accesses (paying the inevitable performance cost of this). > Thank you! Craig - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: ActionServlet Action caching problem
RequestProcessor.processActionCreate() is probably where you could customize how many Action instances to create. I'm not sure why you would need multiple instances but the customization is available. David From: "Whitmire, Jeffrey" <[EMAIL PROTECTED]> Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> To: "'Struts Users Mailing List'" <[EMAIL PROTECTED]> Subject: RE: ActionServlet Action caching problem Date: Tue, 11 Mar 2003 12:16:33 -0500 Found it. Turns out it wasn't a caching problem at all. I have a threaded job manager that was being used by this action class. There was a weird exception being thrown that wasn't getting caught which was locking the thread. This action was getting reused by Struts, but never did anything because it was still blocking on the locked thread. I've fixed it and learned much, but is there any way to get more control over the caching? Do you have to subclass ActionServlet or the RequestProcessor to do that? I would think there would be instances where you would want a pool of actions instead of only one instance of each. Once this release gets out I'm going to look at it more, but I was just curious about whether anybody has looked into this. Jeff. -Original Message- From: Whitmire, Jeffrey [mailto:[EMAIL PROTECTED] Sent: Monday, March 10, 2003 4:07 PM To: '[EMAIL PROTECTED]' Subject: ActionServlet Action caching problem I've got a weird one. I'm hoping that somebody else has encountered this before and can help. We are in the midst of load testing our app before rolling it out to production. I have one action class (only one) that starts failing well over an hour into the test. It appears that the instance of that action class cached by the ActionServlet becomes invalid. I can see no reason why the change in behaviour, but at some point the RequestProcessor gets an instance to the Action that is no longer valid. It is not null, but it never executes it. The rest of the app works perfectly, but that button (tied to that specific Action) never works again until the tomcat instance is restarted. It just hangs, and the last indication in the log is the RequestProcessor finding and returning an instance of that action class. Has anyone ever had problems with Action instances going stale? or some other config problem that could cause this? Thanks, I'm a bit desparate, Jeff. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] _ Add photos to your messages with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [OT]: Struts, Web Development, J2EE, and what is too much?
Aaron, You've opened up a big can of worms! There is much debate on this topic. Regarding entity beans and transactions: The recommended practice is to use the 'Session Facade' pattern to wrap access to your entity beans inside a stateless EJB session bean. The reason is remote calls to entity EJB's are too slow. Instead, only use local interfaces for you entity beans. Your Struts actions would never talk to entity beans directly; instead they would call 'service' methods on session beans. This also means you need lots of little data transfer beans to transfer the data in and out of the session facade. (Or you can sacrifice explicitness and type safety and use dyna-beans.) The session facade also provides a good place for transaction boundaries. An action will usually call one method on the session bean, and that method is a transaction. The user hits a button, and either all his changes or saved, or they all get rolled back. That kind of 'atomic request' is a nice simple transaction model that works for most situations. However, there is a lot of extra effort involved in creating the session facades and data transfer objects, and keeping them in sync. Example: the xPetStore application, which shows how to use xDoclet, was implemented twice, once using EJB, and once using just Servlets and Hibernate (an open source O/R mapping tool). Excluding the code that xDoclet generated for you, the EJB version still had more than twice as many lines of source code in the business tier compared to the Hibernate version. So even with a tool like Xdoclet, there is still significant extra cost to doing EJB. Also, as Robert alluded to, EJB entity beans don't really support object-oriented development. A good OO domain model is typically fine grained, with inheritance, relationships to other objects, etc. The fact that entity beans don't allow re-entrancy (object 'a' calls a method on object 'b', which calls a method on 'a'), inhibits your entity model. Of course, if your business model is simple, that might be OK. IMHO, the only compelling reason to use EJB is if you need to provide access to remote Java clients to your business tier. (Web services are another option that also supports non-Java clients. But they do add overhead.) Even there, I would just use session beans, not entity beans. In our app, we're using Struts with Hibernate and doing everything in the web container. We have a servlet filter that start, stops and rolls back the transaction; the 'atomic request' approach. Getting EJB out of the mix really simplified things for us. We do have a few cases where a remote Java client needs to talk to our business tier, so we will probably use EJB remote session facades for that. But we'll only do the extra work when and where we need it. Hibernate allows you to declaratively cache read-only objects. (Or read-write too, if you're not using a cluster.) Ted Husted has an example app on his page using Struts and Hibernate. OJB is another popular option. Long term, JDO may or may not catch on . All of these tools over true transparent, object-oriented persistence, in stark contrast to EJB entity beans. Steve -Original Message- From: Robert McIntosh [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 11, 2003 10:39 AM To: Struts Users Mailing List Subject: Re: [OT]: Struts, Web Development, J2EE, and what is too much? Tony made some good points, and my take is that from your requirements, you may not need EJBs. However, if you layered your app sufficiently, then if you end up needing them later on, it shouldn't be too much of a problem. Of course I am assuming you are referring to Entity beans in this case... As for when to use EJBs, what I have always recommended to our clients is that EJBs are good for large scale applications that run on clustered machines and require transactions at the entity bean level. The transactions are good if you have multiple apps and clients that are modifying the same data. If your app is largely read only, it is the only one interacting with the data and you aren't worried about concurrent modifcation, then you probably don't need entity beans. Yes, most app servers can cache and mark entity beans as read-only or mostly read-only for performance, but there are other ways of doing the same thing. Another thing to consider is how your object model is designed. If you have lots of inheritance, entity beans aren't going to fit you well. Same can be said if you have complex query requirements (joins, relationships that the object model doesn't support, etc.). Then again, in some cases as Nash pointed out, EJBs can be simplier from the perspective that any good app server can build the database for you and with tools like XDoclet, you don't have to write deployment descriptors and you don't have to maintain (i.e. code) the interfaces for home, remote and local. - Robert Aaron O'Hara wrote: >I know this question has probably b
Character set lost when doing an include with Struts!
Hello all. Has anyone ever had a problem maintaining character set in an included page? I do! I've tried everything: 1. using jsp format -- instead of Struts format, and nothing works. 2. jsp include of struts action -- 3. RequestDispatcher: RequestDispatcher dispatcher = request.getRequestDispatcher(forwardHomeNoticias.getPath()); dispatcher.include(request, response); .. nothing works! In my "mother" page I have the meta tag: In the included page I have the page directive: <%@ page language="java" contentType="text/html; charset=iso-8859-1" %> But ALL content in the included page -- data from the database, static html, everything -- appears with question marks instead of accented characters. If I include a static jsp with accented characters it appears correctly. My struts calls are: //struts action, /do/LoadNoticias/... //print content .. and no matter what I do it won't print correctly. Anyone know what the heck else I can try? Thanks in advance, Bob - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: ActionServlet Action caching problem
I'll have to look into it, but it seems to me that if the action is doing a non-trivial amount of work (which mine is), then if there are multiple requests, they will get serialized through the single instance of the action. It may be that I need to redesign how my action works, but currently it will submit a job and block until it completes. If there were a pool of actions instead of a single one it seems like it would be more efficient. Jeff. -Original Message- From: David Graham [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 11, 2003 12:40 PM To: [EMAIL PROTECTED] Subject: RE: ActionServlet Action caching problem RequestProcessor.processActionCreate() is probably where you could customize how many Action instances to create. I'm not sure why you would need multiple instances but the customization is available. David >From: "Whitmire, Jeffrey" <[EMAIL PROTECTED]> >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> >To: "'Struts Users Mailing List'" <[EMAIL PROTECTED]> >Subject: RE: ActionServlet Action caching problem >Date: Tue, 11 Mar 2003 12:16:33 -0500 > >Found it. Turns out it wasn't a caching problem at all. I have a threaded >job manager that was being used by this action class. There was a weird >exception being thrown that wasn't getting caught which was locking the >thread. This action was getting reused by Struts, but never did anything >because it was still blocking on the locked thread. > >I've fixed it and learned much, but is there any way to get more control >over the caching? Do you have to subclass ActionServlet or the >RequestProcessor to do that? I would think there would be instances where >you would want a pool of actions instead of only one instance of each. >Once >this release gets out I'm going to look at it more, but I was just curious >about whether anybody has looked into this. > >Jeff. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Oracle Data Source Config
I've tried something simillar to this too. JNDI seemed like the best place to reference it to me, since I already had a class to retrieve connections from the Weblogic pool in place. It turned out that while I could place the OracleConnectionPoolDataSource in JNDI, what I need to do is put the entire pool there, but the OracleConnectionCacheImpl object is not serializable, and therefore throws a java.io.NotSerializableException when I try to put it in JNDI. Unless anyone else has any ideas, I guess I'm stuck with the servel context. Thanks. David Graham wrote: This introduces another problem in that I will have to pass the connection to my business objects from my action classes, but I think it will work. Any ideas are welcome. Thanks. You can either put the DataSource in JNDI for your business objects to look up or pass the DataSource into the business layer directly. There's no reason to pass Connection objects into the business layer. David _ The new MSN 8: advanced junk mail protection and 2 months FREE* http://join.msn.com/?page=features/junkmail - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re-post : Problem with character sets doing struts include. Accented characters getting garbled!!
Hello all. Has anyone ever had a problem maintaining character set in an included page? I do! I've tried everything: 1. using jsp format -- instead of Struts format, and nothing works. 2. jsp include of struts action -- 3. RequestDispatcher: RequestDispatcher dispatcher = request.getRequestDispatcher(forwardHomeNoticias.getPath()); dispatcher.include(request, response); . nothing works! In my "mother" page I have the meta tag: In the included page I have the page directive: <%@ page language="java" contentType="text/html; charset=iso-8859-1" %> But ALL content in the included page -- data from the database, static html, everything -- appears with question marks instead of accented characters. If I include a static jsp with accented characters it appears correctly. My struts calls are: //struts action, /do/LoadNoticias/... //print content . and no matter what I do it won't print correctly. Anyone know what the heck else I can try? Thanks in advance, Bob - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: ActionServlet Action caching problem
My execute/perform methods aren't normally synchronized. The javadocs don't indicate they expect it to be, so, calls to that methods shouldn't get "blocked". However, you could have concurrency problems if you're using static, class, or instance variables. The execute/perform method should limit itself to using local variables or data passed by reference and you won't have this problem. Unless you explicitly declare some class methods synchronized, in which case you're exactly right. If you do that, however, you ought to mean to produce that effect and limit your critical section to a small block of code-- ideally one that doesn't block on anything. ;-) Maybe I'm out to lunch, though. Its been a while since I've coded java threads. -nash On Tuesday, March 11, 2003, at 12:52 PM, Whitmire, Jeffrey wrote: I'll have to look into it, but it seems to me that if the action is doing a non-trivial amount of work (which mine is), then if there are multiple requests, they will get serialized through the single instance of the action. It may be that I need to redesign how my action works, but currently it will submit a job and block until it completes. If there were a pool of actions instead of a single one it seems like it would be more efficient. Jeff. *** This message is intended only for the use of the intended recipient and may contain information that is PRIVILEGED and/or CONFIDENTIAL. If you are not the intended recipient, you are hereby notified that any use, dissemination, disclosure or copying of this communication is strictly prohibited. If you have received this communication in error, please destroy all copies of this message and its attachments and notify us immediately. *** - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
action chaining and session scope.
Hi, In my app I have an action forwarding to another action, with both their different formbean in session scope, I do not understand why the reset for the formbean is called. I have a log message in the reset method. Is this a bug ? I am using struts 1.1 b3. Regards Rajesh J - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: ActionServlet Action caching problem
The servlet container is multi-threaded with many threads calling the 1 action's execute method. So, you don't have to worry about pooling actions. If your execute method doesn't use instance variables, then it doesn't need to be synchronized. Even though there's only 1 instance of each Action, it can be executed simultaneously by many threads. David From: "Whitmire, Jeffrey" <[EMAIL PROTECTED]> Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> To: "'Struts Users Mailing List'" <[EMAIL PROTECTED]> Subject: RE: ActionServlet Action caching problem Date: Tue, 11 Mar 2003 12:52:45 -0500 I'll have to look into it, but it seems to me that if the action is doing a non-trivial amount of work (which mine is), then if there are multiple requests, they will get serialized through the single instance of the action. It may be that I need to redesign how my action works, but currently it will submit a job and block until it completes. If there were a pool of actions instead of a single one it seems like it would be more efficient. Jeff. -Original Message- From: David Graham [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 11, 2003 12:40 PM To: [EMAIL PROTECTED] Subject: RE: ActionServlet Action caching problem RequestProcessor.processActionCreate() is probably where you could customize how many Action instances to create. I'm not sure why you would need multiple instances but the customization is available. David >From: "Whitmire, Jeffrey" <[EMAIL PROTECTED]> >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> >To: "'Struts Users Mailing List'" <[EMAIL PROTECTED]> >Subject: RE: ActionServlet Action caching problem >Date: Tue, 11 Mar 2003 12:16:33 -0500 > >Found it. Turns out it wasn't a caching problem at all. I have a threaded >job manager that was being used by this action class. There was a weird >exception being thrown that wasn't getting caught which was locking the >thread. This action was getting reused by Struts, but never did anything >because it was still blocking on the locked thread. > >I've fixed it and learned much, but is there any way to get more control >over the caching? Do you have to subclass ActionServlet or the >RequestProcessor to do that? I would think there would be instances where >you would want a pool of actions instead of only one instance of each. >Once >this release gets out I'm going to look at it more, but I was just curious >about whether anybody has looked into this. > >Jeff. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] _ Add photos to your e-mail with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Migrating 1.1b2 to 1.1rc1
Hi All, I am migrating my Struts 1.1b2 web app to 1.1rc1 to take advantage of the new requiredif validation rule. I have removed all struts libs and all taglib tld's and replaced with the new ones provided with the struts-blank.war in the rc1 distribution. When I try and access my web app the first page gives me the following error: java.lang.NoSuchMethodError: org.apache.struts.util.RequestUtils.computeURL(Ljavax/servlet/jsp/PageCo ntext;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/S tring;Ljava/util/Map;Ljava/lang/String;Z)Ljava/lang/String; at org.apache.struts.taglib.html.LinkTag.calculateURL(LinkTag.java:495) at org.apache.struts.taglib.html.LinkTag.doStartTag(LinkTag.java:353) at _shared._header__jsp._jspService(/wbwebsite/shared/header.jsp:45) at com.caucho.jsp.JavaPage.service(JavaPage.java:75) at com.caucho.jsp.Page.subservice(Page.java:485) at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182 ) at com.caucho.server.http.Invocation.service(Invocation.java:312) at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135) at com.caucho.server.http.QRequestDispatcher.include(QRequestDispatcher.jav a:360) at com.caucho.server.http.QRequestDispatcher.include(QRequestDispatcher.jav a:267) at com.caucho.jsp.QPageContext.include(QPageContext.java:538) at _home._index__jsp._jspService(_index__jsp.java:28) at com.caucho.jsp.JavaPage.service(JavaPage.java:75) at com.caucho.jsp.Page.subservice(Page.java:485) at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182 ) at com.caucho.server.http.Invocation.service(Invocation.java:312) at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:221) at com.caucho.server.http.HttpRequest.handleConnection(HttpRequest.java:163 ) at com.caucho.server.TcpConnection.run(TcpConnection.java:137) at java.lang.Thread.run(Thread.java:536) I am not sure what I am doing wrong, any help much appreciated. Thanks, Greg
Re: Migrating 1.1b2 to 1.1rc1
I checked the Java DOC, and it looks like org.apache.struts.util.RequestUtils.computeURL() is deprecated. Khalid - Original Message - From: "Greg Hess" <[EMAIL PROTECTED]> To: "Struts" <[EMAIL PROTECTED]> Sent: Tuesday, March 11, 2003 10:33 AM Subject: Migrating 1.1b2 to 1.1rc1 > Hi All, > > I am migrating my Struts 1.1b2 web app to 1.1rc1 to take advantage of > the new requiredif validation rule. I have removed all struts libs and > all taglib tld's and replaced with the new ones provided with the > struts-blank.war in the rc1 distribution. > > When I try and access my web app the first page gives me the following > error: > java.lang.NoSuchMethodError: > org.apache.struts.util.RequestUtils.computeURL(Ljavax/servlet/jsp/PageCo > ntext;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/S > tring;Ljava/util/Map;Ljava/lang/String;Z)Ljava/lang/String; > at > org.apache.struts.taglib.html.LinkTag.calculateURL(LinkTag.java:495) > at > org.apache.struts.taglib.html.LinkTag.doStartTag(LinkTag.java:353) > at > _shared._header__jsp._jspService(/wbwebsite/shared/header.jsp:45) > at com.caucho.jsp.JavaPage.service(JavaPage.java:75) > at com.caucho.jsp.Page.subservice(Page.java:485) > at > com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182 > ) > at > com.caucho.server.http.Invocation.service(Invocation.java:312) > at > com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135) > at > com.caucho.server.http.QRequestDispatcher.include(QRequestDispatcher.jav > a:360) > at > com.caucho.server.http.QRequestDispatcher.include(QRequestDispatcher.jav > a:267) > at com.caucho.jsp.QPageContext.include(QPageContext.java:538) > at _home._index__jsp._jspService(_index__jsp.java:28) > at com.caucho.jsp.JavaPage.service(JavaPage.java:75) > at com.caucho.jsp.Page.subservice(Page.java:485) > at > com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182 > ) > at > com.caucho.server.http.Invocation.service(Invocation.java:312) > at > com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135) > at > com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:221) > at > com.caucho.server.http.HttpRequest.handleConnection(HttpRequest.java:163 > ) > at com.caucho.server.TcpConnection.run(TcpConnection.java:137) > at java.lang.Thread.run(Thread.java:536) > > I am not sure what I am doing wrong, any help much appreciated. > > Thanks, > Greg > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
generating select options from a previous select
Hello, I have a form with two select tags. I want the options for the second to be dependent on the option chosen for the first. What is the best way to accomplish this? If java script is the answer, how do I obtain the value of the option chosen in the first select (I'm new to web apps)? What I've tried to do is create the options for the second select in the form bean given the value of the first, but of course, the set method for the property associated with the first select is not called until the form is submitted. ... Thanks for helping, Kelly - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
