Re: must restart tomcat
i just downloaded and installed tomcat 4.0 - the examples work fine BUT there seem to be a problem with struts - *.tld has changed ? i get the error: apache.jasper.JasperException: XML parsing error on file /WEB-INF/struts-html.tld: (line 2, col -1): Element type "document" is not declared. at org.apache.jasper.compiler.JspUtil.parseXMLDocJaxp(JspUtil.java:225) at org.apache.jasper.compiler.JspUtil.parseXMLDoc(JspUtil.java:198) how to fix this ? thanks in advance g. Tom Janofsky wrote: > Just FYI - it's not that hard. > > toolkits to get this info > http://www.inf.fu-berlin.de/~dahm/JavaClass/ (lgpl'd byte code tools) > or > CFParse from IBM alphaworks > (both can be used the get all the classes used by a class) > > some tools that do this sort of thing... > http://vorlon.eecs.cwru.edu/~jrl7/java/ImportMin.txt (tells you what > you need to import) > Dash-o also does something like this to clean up imports, and > woodenchair's Utility+ > > Although I'd bet my $.02 that all tomcat 4.x does is watch timestamps on > all the files under classes. > > And slightly OT - wasn't life nice and simple in Java before you had to > understand class loaders...? > > --tom > > "Shkuro, Yuri" wrote: > > > > I am not aware of any mechanisms in Java to inspect a class and determine > > its dependencies (although javac obviously has to do it, but its > > proprietory). > > I think this issue is too difficult for any container to handle > > automatically. > > > > -Original Message- > > From: gustav spellauge [mailto:[EMAIL PROTECTED]] > > Sent: Wednesday, February 14, 2001 3:21 PM > > To: [EMAIL PROTECTED] > > Subject: Re: must restart tomcat > > > > thanks, > > > > that's what i thught but now i can be quit shure. > > > > do you think/know if tmcat 4.x will support hotswapping of all dependencies > > ? > > > > g. > > > > "Shkuro, Yuri" wrote: > > > > > Tomcat 3.2 only supports hot-swapping of servlet classes, but not their > > > dependencies like bean classes, so you either have to restart Tomcat, or > > > use its admin interface to remove your application context and add it > > again. > > > > > > Note that the latter is not necessarily faster (usually takes me four hits > > > on the URL: list/delete/add/list), unless you have many applications in > > your > > > webapp directory (and you shouldn't if you plan to restart often). Also, > > > I noticed that when a context is added via admin interface, Tomcat does > > > not set init parameters for this context, which my application depends on. > > > > > > YS. > > > > > > -Original Message- > > > From: Maya Muchnik [mailto:[EMAIL PROTECTED]] > > > Sent: Wednesday, February 14, 2001 2:47 PM > > > To: [EMAIL PROTECTED] > > > Subject: Re: must restart tomcat > > > > > > I think, you need to config your server.xml file to tell to "reload" your > > > classes after they are changed / rebuilt. > > > Do you config server.xml for your new application? > > > > > > gustav spellauge wrote: > > > > > > > again my qustion: > > > > > > > > after a change in any of a formbean class or an action class i will have > > > > to restart tomcat (3.2) otherwise my app. runs into cast-exceptions. > > > > > > > > is there any way to avoid this restart. maybe something is wrong with my > > > > setup. > > > > > > > > thanks in advance > > > > > > > > g.
Re: Question on ActionServlet design
Hi Craig, Our web-app looks like: ActionServletMain ActionServletModule1ActionServletModule2 ... All of the controllers are living in the same web-app. The main controller is the only instance which knows about all the module-controllers. The communication between a module controller and the main controller is minimal. Each of the controllers has its own set of JSP/HTML-pages which are located in its own subfolders. The file structure looks like: %web-app%\ 'main' ui module1\ 'module1' ui module2\ 'module2' ui ... The reasons for the modularisation are: 1. each module can exist in its own web-app 2. each module is developed by a different group Each module has ist own extension-mapping. So the requests with the extension *.main are served by the ActionServletMain, and *.m1 by the ActionServletModule1 and so on. You mentioned: Craig::>>servlet context attributes set up by the ActionServlet instances that started first to Craig::>>be wiped out by the attributes created Craig::>>in the ActionServlet instance that started last ... Since we are using Struts just as a controller framework and are NOT using any Struts tags, are we on the safe side ? What are the smoking guns in such a model ? The attributes, that the ActionServlet is setting in the application and in the session scope (like Locale ) are they required for the controller part of Struts or for the Struts-tags ? Best Regards, fm
Setting focus to a text field
Hi All, Does anybody know how to set the focus for a text field on a form? Thanks David J SnowsillPrincipal ConsultantCalibre Financial Technology[EMAIL PROTECTED]Office: (61-2) 9212 0527Mobile: 0403 091 468 ***This E-mail is intended only for the use of the individual or entity namedabove and may contain information that is confidential and privileged. If you are not the intended recipient, you are hereby notified that anydissemination, distribution or copying of this E-mail is strictly prohibited. If you have received this E-mail in error, please notify us immediatelyby return e-mail to the sender or by telephoning one of our staff on (61-2)9212 0527. Please then destroy any copies of the original message thatare in your possession. Thank you.*** BEGIN:VCARD VERSION:2.1 N:Snowsill;David;J;Mr FN:David J Snowsill ORG:Calibre Financial Technology TITLE:Principal Consultant TEL;WORK;VOICE:02 9212 0527 TEL;CELL;VOICE:0403091468 ADR;WORK;ENCODING=QUOTED-PRINTABLE:;;Suite 487=0D=0A311 Castlereigh Street;Sydney;NSW;2000;Australia LABEL;WORK;ENCODING=QUOTED-PRINTABLE:Suite 487=0D=0A311 Castlereigh Street=0D=0ASydney, NSW 2000=0D=0AAustralia URL: URL:http://www.calibreFT.com.au EMAIL;PREF;INTERNET:[EMAIL PROTECTED] REV:20010215T061847Z END:VCARD
Re: Old questions that die hard
I added basic client side javascript validation that matches the server side validation. Validation rules are stored in an xml file. I thought that if the form had a locale attribute that would take care of i18n or there could be separate files like the property resource files. I was also thinking about how open the validation framework should be. If it could be configured a little like some Ant tasks, you could define a method to perform validation and what validation need to finish before others proceed like the Ant depends attribute. I thought of this because I'm checking for all required fields before continuing to check the regular expressions. Anyway, it's late. I hope that part made sense. I posted the code and a example war at. Ted, if you want to, you can add this to the list of struts sites/resources you have. Is this something along the lines you were thinking of? Let me know what you think of Ted. http://home.earthlink.net/~dwinterfeldt David Winterfeldt --- Ted Husted <[EMAIL PROTECTED]> wrote: > My initial thoughts were to look at what some of the > advanced HTML > authoring tools, like FrontPage and Dreamweaver do > with this. Craig > mentioned to me that the client-side validations > should be coordinated > with any new work on server-side validations. > > Obviously, some standard "domain type" validations > would be very useful, > corresponding to Java or SQL types. These might be > the sorts of things > we could easily add as properties, and would fit in > with any IDE > integration projects. > > These could then be braced server-side with hardcore > regex validations, > along with any business logic checking. > > Of course, late-model Javascript also supports regex > ... > > Jim Richards wrote: > >>The other thing I haven't found reference to yet > is > >>client side validation (but I also haven't looked > that hard either) > > > I did notice that you had your name down for the > client > > side validation. I'd be interested in your > thoughts, and > > ideas because this is something I've done a lot of > > recently (not in Struts/JSP though) ... > > -- Ted Husted, Husted dot Com, Fairport NY USA. > -- Custom Software ~ Technical Services. > -- Tel 716 425-0252; Fax 716 223-2506. > -- http://www.husted.com/about/struts/ __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/
Re: ActionForm property naming conventions
The Introspector.decapitalize() method does indeed have a special case for
where the second letter is capitalized. Here's the offending piece of code
from that method:
if (name.length() > 1 && Character.isUpperCase(name.charAt(1)) &&
Character.isUpperCase(name.charAt(0))){
return name;
}
So given a method named "getNTerminal", the Introspector will derive a
property name of "NTerminal".
Hope this helps.
--
Martin Cooper
Tumbleweed Communications
- Original Message -
From: "Craig R. McClanahan" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, February 14, 2001 12:53 PM
Subject: Re: ActionForm property naming conventions
> [EMAIL PROTECTED] wrote:
>
> > My question is best asked with an example... Why is it that I am unable
to
> > create a property named "nTerminal" for my ActionForm/JSP? This problem
> > occurs when there is an uppercase letter in the 2nd position of the
property
> > name. If I change the name to "nterminal" or "ntErminal" then things
work
> > just fine. In other words- getNterminal() is recognized by Struts, but
> > getNTerminal() is invalid and results in a runtime error in the html
tag. Is
> > this a limitation imposed by Javabean conventions or is this a Struts
> > specific issue? (If you think I am crazy, then perhaps this problem is
> > specific to WebLogic.)
> >
> > Thanks,
> > Bob
>
> Struts uses the introspection capabilities Java Reflection APIs -- in
> particular, it calls java.beans.Introspector.getBeanInfo() -- to figure
out the
> names of the getter and setter methods for various properties. The
> introspector, in turn, enforces the design patterns that are documented in
the
> JavaBeans specification. It is possible that there are some special cases
for
> the second letter of a property name being capitalized.
>
> I would have expected "getNTerminal" and "setNTerminal" to work for a
property
> named "nTerminal".
>
> Craig
>
>
RE: Newbie question
Drew, > I have the struts.jar on the CLASSPATH. It may be this that is screwing you up. You have to relearn some things about classpaths when you start working with j2ee style servlet containers. Make sure the struts jar(s) are not in tomcat's lib directory or your classpath. It should be sufficient to have them in the WEB-INF/lib directory. Cheers, Simon. -Original Message- From: Drew Nichols [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 9:22 PM To: struts Subject: Newbie question Hi there, I have downloaded and installed the struts wars into tomcat/webapps. When I restart tomcat I get the following error msg: New org.apache.struts.example.User Begin event threw exception java.lang.ClassNotFoundException: org.apache.struts.example.User When I load the struts-example I get this error: javax.servlet.ServletException: Missing resources attribute org.apache.struts.action.MESSAGE I have the struts.jar on the CLASSPATH. Have I missed something in the config?? I have followed the instructions carefully. TIA Drew
Re: ActionForm property naming conventions
I have another problem example that I had reported earlier. I had to change the property name from eMail to email to get it through. "Craig R. McClanahan" wrote: > [EMAIL PROTECTED] wrote: > > > My question is best asked with an example... Why is it that I am unable to > > create a property named "nTerminal" for my ActionForm/JSP? This problem > > occurs when there is an uppercase letter in the 2nd position of the property > > name. If I change the name to "nterminal" or "ntErminal" then things work > > just fine. In other words- getNterminal() is recognized by Struts, but > > getNTerminal() is invalid and results in a runtime error in the html tag. Is > > this a limitation imposed by Javabean conventions or is this a Struts > > specific issue? (If you think I am crazy, then perhaps this problem is > > specific to WebLogic.) > > > > Thanks, > > Bob > > Struts uses the introspection capabilities Java Reflection APIs -- in > particular, it calls java.beans.Introspector.getBeanInfo() -- to figure out the > names of the getter and setter methods for various properties. The > introspector, in turn, enforces the design patterns that are documented in the > JavaBeans specification. It is possible that there are some special cases for > the second letter of a property name being capitalized. > > I would have expected "getNTerminal" and "setNTerminal" to work for a property > named "nTerminal". > > Craig
Re: controlling the next page to be displayed
Silvia Yeh wrote: > What happens to me now is that after "return (new ActionForward(path))", > where path is the caller/previous url with new content( ig, delete a record > in an array ), I need to refresh the content! > If you have a separate action that refreshes the content and then forwards to the display page, this can be done quite simply -- just do a forward to the action, instead of directly to the page. The Struts example application does this. Consider what happens when you add, edit, or delete a subscription (on the subscription.jsp) page, which submits to "/saveSubscription.do". In order to redisplay the updated current list of subscriptions, the following events takes place: * The /saveSubscription action completes the appropriate changes on the database * The /saveSubscription action forwards to its "success" ActionForward, which points at "/editRegistration.do?action=Edit * The /editRegistration action sets up the correct beans for the "registration.jsp" page to be redisplayed * The /editRegistration action forwards to its "success" ActionForward, which points at "/registration.jsp" * The JSP page containaing the registration information, and the current list of subscriptions for the logged in user, is displayed The visual effect of this is that the information on the subscription list is always kept up to date. > > Any suggestions? Thanks in advance.. > > Regards, > > Silvia Yeh > Craig McClanahan
Newbie question
Hi there, I have downloaded and installed the struts wars into tomcat/webapps. When I restart tomcat I get the following error msg: New org.apache.struts.example.User Begin event threw exception java.lang.ClassNotFoundException: org.apache.struts.example.User When I load the struts-example I get this error: javax.servlet.ServletException: Missing resources attribute org.apache.struts.action.MESSAGE I have the struts.jar on the CLASSPATH. Have I missed something in the config?? I have followed the instructions carefully. TIA Drew
netscape 4.7x, session ids and struts
Using netscape 4.7x on either solaris, linux or windows, the struts-example fails, because I am bounced between two different sessions. The symptom indicates to me that netscape keeps separate lists of cookies for the following URLs: http://myhost http://myhost:80 As one goes through the struts example, the URL is sometimes displayed as myhost, and sometimes as myhost:80, and I am never allowed past the login because the user information is kept in a session associated with myhost, and can't be found in a session associated with myhost:80. Environment: struts nightly download as of Feb 12, 2001. Tomcat 3.2.1, mod_jk, apache 1.3.12 on RH7. I have all cookies enabled in netscape preferences, with "Warn before accepting a cookie" also turned on for debugging. 1. When I try the struts-example with the following URL: http://myhost/struts-example Netscape asks if I want to send the cookie JSESSIONID=f78s0eymd1, and I click OK. 2. I select the "Log on ..." link. Then the logon form is displayed at a URL of http://myhost:80/struts-example/logon.jsp;jsessionid=f78s0eymd1 Note the cookie in the URL because struts doesn't yet know if my browser accepts cookies. Also note the port number 80 in the URL. 3. I enter user:pass and Submit. LogonAction logs the following message: 2001-02-15 01:59:47 - path="/struts-example" :action: LogonAction: User 'user' logged on in session f78s0eymd1 The mainMenu.jsp page is displayed, with a URL: http://myhost/struts-example/logon.do;jsessionid=f78s0eymd1 (note no port number is in the URL) 4. Then, when I select "Edit your" the netscape question box pops up asking if I want to send a cookie JSESSIONID=ynsmafyqr1. The URL is shown as http://myhost:80/struts-example/editRegistration.do?action=Edit This shouldn't happen, it should use the first session id! 5. When I click on OK, then, EditRegistrationAction logs the following error: 2001-02-15 02:00:55 - path="/struts-example" :action: User is not logged on in session ynsmafyqr1 The logon.jsp form is again displayed. If I enter user:pass, then LogonAction reports a successfull login in session f78s0eymd1 (the first session id again!) When I select "Edit ..." I get the same error from EditRegistrationAction about "User is not logged on in session ynsmafyqr1". And so on, ad-infinitum. If I disable cookies in netscape preferences, then things work with URL rewriting, and EditRegistrationAction forwards me to registration.jsp. The problem also does not show up with IE 5. Also, at step 4, if I manually enter a URL of: http://myhost/struts-example/editRegistration.do?action=Edit then EditRegistrationAction succeeds and forwards to registration.jsp. If I am right about netscape keeping separate cookie lists, then perhaps a workaround is for struts (specifically the html taglib) not to add the port number when generating URLs? I haven't tested this solution. Someone must have run into it also? Gordon Maclean -- * Gordon Maclean, Software Engineer, 303 497-8794 Nat'l Center for Atmospheric Research, Boulder CO USA *
RE: controlling the next page to be displayed
What happens to me now is that after "return (new ActionForward(path))",
where path is the caller/previous url with new content( ig, delete a record
in an array ), I need to refresh the content!
Any suggestions? Thanks in advance..
Regards,
Silvia Yeh
-Original Message-
From: Craig Tataryn [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, February 14, 2001 8:59 AM
To: [EMAIL PROTECTED]
Subject: Re: controlling the next page to be displayed
Craig M. answered this question yesterday in a mail titled: "Proper way to
'forward' dynamically"
When I need this, I just create a new ActionForward dynamically:
String path = ... create context-relative path to new page ...
return (new ActionForward(path));
The path you calculate must be context relative and start with a slash,
exactly
like the "path" attributes to your standard elements.
Ratnadeep Bhattacharjee wrote:
> Hi,
>
> I am quite new to Struts and was wondering if someone could help me with
the
> following issue:
>
> I am on a web page and I have entered some data and I click on Submit.
Now, the
> Action class correspoding to its JSP page gets executed. I would like the
> perform() method of the Action class to determine the next page that
should be
> displayed (based on data I had entered).
>
> If I use
> return (mapping.findForward("success"))
>
> I can go to one page only - the one that is mentioned in my
struts-config.xml.
>
>
>
> I would like to go to one of many pages on success.
>
> Thanks,
> -Deep.
--
I've been trying to change the world for years, but they just won't give me
the
source code
Re: Question on ActionServlet design
Kishore Subramanian wrote: > Hi, > > What are the reasons to have only one instance of the ActionServlet (controller >servlet) ? > To clarify slightly, there is one instance of the controller servlet per web application. The reasoning is that some resources are truly application wide, and there is zero benefit in duplicating them. For example, because servlets run in a multithreaded environment, having more instances of them would not make it run any faster. Also, a single controller servlet gives you a central point of control where you can guarantee that functions you want performed happen on every single request. > > Can I subclass from ActionServlet and have one servlet for each module in my web >application ? You could if you want, but you're going to run into problems unless you run each module in an independent web app. If you do that, there is no particular need to subclass ActionServlet either, unless you need some specialized functionality that is not already provided. If you run your modules in separate webapps, then each webapp is pretty much autonomous -- servlet context attributes, sessions, and even static variables in Java classes do not cross the boundary between webapps. > What are the implications ? > Trying to run mutliple instances of ActionServlet in the same web application (whether subclassed or not) would cause the servlet context attributes set up by the ActionServlet instances that started first to be wiped out by the attributes created in the ActionServlet instance that started last. This would be a Bad Thing (tm) :-) > > Thanks, > > Kishore Subramanian > Agile Software > Off : 408 999 7128 > http://www.agilesoft.com Craig McClanahan
Question on ActionServlet design
Hi, What are the reasons to have only one instance of the ActionServlet (controller servlet) ? Can I subclass from ActionServlet and have one servlet for each module in my web application ? What are the implications ? Thanks, Kishore Subramanian Agile Software Off : 408 999 7128 http://www.agilesoft.com
Re: Forwarding an action to multiple JSPs
You can probably get javascript to update the parent frame. I did this in a previous project but now avoid frames, even if the speed up page reloads. Shad wrote: > > Is there a way to forward a request to more than on > JSP from the same action class, and have the JSPs > updated different frames? > > Scenerio: > When a user logs into the system and the login request > gets forwarded to the "LoginAction" class, I would > like to forward this request to two JSPs: 1.) To > perform the normal authentication routine and display > the resulting success/failure message to a particular > frame, and 2.) to get a list of the users currently > logged into the system and display it in a separate > frame. > > Any help/pointers would be greatly appreciated. > > Shad. > > __ > Do You Yahoo!? > Get personalized email addresses from Yahoo! Mail - only $35 > a year! http://personal.mail.yahoo.com/
Re: Please, help with strange exception
^ Also make sure you are not mixing 0.5 Tags and 1.0 Tags The old tag librariy is struts.tld the new ones are struts-html.tld struts-logic.tld etc ...
[Fwd: Re: Avoid JSP caching by the browser]
Use the Action.saveToken(), Action.resetToken(), Action.isTokenValid() for form transactions. This does exactly what you want. see http://www.mail-archive.com/struts-user@jakarta.apache.org/msg02888.html for the thread that discusses this. Lind Jürgen wrote: > > Hi there, > > I have the following problem: in order to prevent the web-browser > from using cached versions of a jsp, we plan to add some unique > timestamp (which will actually be ignored by the jsp) to the url > that calls the jsp, e.g.: > > myjsp > > While this works fine when cookies are enabled, it fails when > cookies are disabled because it does not make use of the URL > rewriting capabilities of the Struts taglib. > > Using the html:link tag, however, introduces the difficulty how to > dynamically add the timestamp. Using something like > > myjsp > > fails as the Java Code will not get interpreted but it will be literally > appended to the URL, causing a Decode Error in the receiving JSP. > > Has anyone experienced similar problems (with the web browser caching > jsp pages) and could offer some help or are there any suggestions wrt. > the above evaluation problem? > > Regards > > Jürgen > > -- > Dr. Jürgen Lind > iteratec GmbHFon: +49 (0)89 614551-44 > Inselkammerstrasse 4 Fax: +49 (0)89 614551-10 > 82008 Unterhaching Web: www.iteratec.de
Re: setting docBase in JBuilder to run/debug
One Resource for this is the mail archives. http://www.mail-archive.com/struts-user%40jakarta.apache.org/maillist.html Use the keywords 'jbuilder context' This will bring up an answer to your question, last answer. [EMAIL PROTECTED] wrote: > > Hello, > > it's only slightly related to STruts, but I like to get your suggestions to the > following problem: > > I use JBuilder 4 Enterprise Trial with Tomcat 3.2 and Struts. If I want to run > the application, > the Tomcat docBase is always set to D:\ instead of D:\TOMCAT. > > I provided the correct path to the JVM via the -D.. parameter. > The project properties are set correctly > > Here's the related output from JBuilder: > > > > > Setting home to D:\ > Starting tomcat. Check logs/tomcat.log for error messages > > Context log: path="" Adding context path="" docBase="D:\" > Context log: path="/vip-gallery" Adding context path="/vip-gallery" > docBase="D:\" > Starting tomcat install="d:\tomcat\" home="D:\" > >classPath="C:\Programme\JBuilder4\tomcat\lib\webserver.jar;C:\Programme\JBuilder4\tomcat\lib\jasper.jar;C:\Programme\JBuilder4\tomcat\lib\xml.jar;C:\Programme\JBuilder4\lib\servlet.jar;D:\tomcat\vipshop\classes;C:\Programme\Oracle\JDeveloper > > >3.2\myclasses\struts.jar;C:\Programme\JBuilder4\lib\webserverglue.jar;D:\tomcat\webapps\vip-gallery\WEB-INF\classes;C:\Programme\Oracle\JDeveloper > > >3.2\myclasses\struts.jar;C:\Programme\JBuilder4\lib\servlet.jar;D:\tomcat\vipshop\classes;C:\Programme\JBuilder4\lib\jbuilder.jar;C:\Programme\JBuilder4\lib\help.jar;C:\Programme\JBuilder4\lib\gnuregexp.jar;C:\Programme\JBuilder4\jdk1.3\demo\jfc\Java2D\Java2Demo.jar;C:\Programme\JBuilder4\jdk1.3\jre\lib\i18n.jar;C:\Programme\JBuilder4\jdk1.3\jre\lib\jaws.jar;C:\Programme\JBuilder4\jdk1.3\jre\lib\rt.jar;C:\Programme\JBuilder4\jdk1.3\jre\lib\sunrsasign.jar;C:\Programme\JBuilder4\jdk1.3\lib\dt.jar;C:\Programme\JBuilder4\jdk1.3\lib\tools.jar;C:\Programme\Oracle\JDeveloper > > 3.2\java1.2; > C:\Programme\Oracle\JDeveloper 3.2\java1.2\jre;C:\Programme\Oracle\JDeveloper > 3.2\java1.2\lib" > JSP Servlet Started > ... > > > > > Do you have a suggestion how to set the docBase correctly? > > Regards > > Michael
Struts and Turbine
I personally don't use anything from Turbine, because it's design seems to predicate certain skills and page concepts that don't necessarily occur in my projects. As for reusing code within Turbine, the major factor stopping me from doing that is lack of knowledge and accessibility. Having 'reusable' code stuck inside a project like Struts or Turbine limits its reusability. There's been lots of discussion on the general list about this recently. "user access control module?" I'd guess most struts users would have no idea that Turbine had one. Turbine's home page and features page don't mention "user access", but do mention ACLs and roles. The Velocity/WebMacro focus and deemphasis of JSP throughout Turbine made the impression on me that I'd be using technology that duplicate existing JSP/Struts concepts and make the project more complex. -- dIon Gillard, Multitask Consulting Work: http://www.multitask.com.au NetRexx: http://www.multitask.com.au/NetRexx.nsf
Re: Struts and Turbine
Jonathan Carlson wrote: > Are there a lot of Struts users using major Turbine components like the user > access control module? If so, is it 2% 50% or 90%? In other words, how > compatible are they really? I checked the archives but didn't see much that > answered this question. > > What I'm really getting at is that I don't see much on either the Struts web > site or the Turbine site that refers to each other. Considering they are > both Apache projects, the perceived silence about each other makes me kind > of nervous. Since technologies on many of the Jakarta products are starting to overlap, we are discussing a component sharing library on the General list. This would make it much easier for Jakarta products (as well as others) to share individual components. Right now, a lot of the pieces of an individual product depend on several other pieces, which makes it difficult to take the banana without getting the whole gorilla. If you have an interest in this sort of thing, see < http://husted.com/about/jakarta/library.html > Turbine is very results-orientated, and is a good choice for advanced developers looking for a high-performance, omnibus solution. Struts is very standards-orientated, and is a good choice for enterprise developers looking for something that will fit well with their own big picture. -- Ted Husted, Husted dot Com, Fairport NY USA. -- Custom Software ~ Technical Services. -- Tel 716 425-0252; Fax 716 223-2506. -- http://www.husted.com/about/struts/
Struts and Turbine
I am new to Struts and Turbine and am trying to get a feel for their compatibility from the Struts perspective. The Turbine site says that it can be used with JSP, which I take to include Struts. However, it *seems* that Turbine developers prefer the templating systems over Struts (maybe I'm wrong about that). Does that mean that Turbine has a lot of template assumptions in it which would make its major components hard to use with Struts? I understand the push-MVC vs pull-MVC philosophical differences between the template systems and Struts. Are there a lot of Struts users using major Turbine components like the user access control module? If so, is it 2% 50% or 90%? In other words, how compatible are they really? I checked the archives but didn't see much that answered this question. What I'm really getting at is that I don't see much on either the Struts web site or the Turbine site that refers to each other. Considering they are both Apache projects, the perceived silence about each other makes me kind of nervous. Hopefully I haven't asked too many questions in one e-mail :-) Jonathan Carlson Software Developer [EMAIL PROTECTED]
Struts and Turbine
I am new to Struts and Turbine and am trying to get a feel for their compatibility from the Struts perspective. The Turbine site says that it can be integrated with JSP, which I infer to include Struts. However, it *seems* that Turbine developers prefer the templating systems over Struts (maybe I'm wrong about that). Does that mean that Turbine makes a lot of template assumptions which would make it hard to use with Struts? I understand the push-MVC vs pull-MVC philosophical differences between the template systems and Struts. Are there a lot of Struts users using major Turbine components like the user access control module? If so, is it 2% 50% or 90%? In other words, how compatible are they really? I checked the archives but didn't see much that answered this question. What I'm really getting at is that I don't see much on either the Struts web site or the Turbine site that refers to each other. Considering they are both Apache projects, the perceived silence about each other makes me kind of nervous. Hopefully I haven't asked too many questions in one e-mail :-) Jonathan Carlson Software Developer [EMAIL PROTECTED]
Re: Avoid JSP caching by the browser
Use the Action.saveToken(), Action.resetToken(), Action.isTokenValid() for form transactions. This does exactly what you want. see http://www.mail-archive.com/struts-user@jakarta.apache.org/msg02888.html for the thread that discusses this. Lind Jürgen wrote: > > Hi there, > > I have the following problem: in order to prevent the web-browser > from using cached versions of a jsp, we plan to add some unique > timestamp (which will actually be ignored by the jsp) to the url > that calls the jsp, e.g.: > > myjsp > > While this works fine when cookies are enabled, it fails when > cookies are disabled because it does not make use of the URL > rewriting capabilities of the Struts taglib. > > Using the html:link tag, however, introduces the difficulty how to > dynamically add the timestamp. Using something like > > myjsp > > fails as the Java Code will not get interpreted but it will be literally > appended to the URL, causing a Decode Error in the receiving JSP. > > Has anyone experienced similar problems (with the web browser caching > jsp pages) and could offer some help or are there any suggestions wrt. > the above evaluation problem? > > Regards > > Jürgen > > -- > Dr. Jürgen Lind > iteratec GmbHFon: +49 (0)89 614551-44 > Inselkammerstrasse 4 Fax: +49 (0)89 614551-10 > 82008 Unterhaching Web: www.iteratec.de
Re: A couple more frames (and non-frames) questions
James Howe wrote: > I'm sort of confused as to where the system thinks it is after > performing a forward action. This is one of the interesting wrinkles to using a RequestDispatcher (as Struts does to implement the forwarding). Because the client browser has no clue that the forwarding took place, so by default relative URLs will be resolved based on the URL of the action you submitted to (i.e. something like http://localhost:8080/myapp/action.do) rather than where the JSP page itself is. One approach that works, as you pointed out, was putting everything at the top level of the URL hierarchy within your webapp. Another option is to include the tag in the section of your page. This will generate a element in the generated page, which will make relative addresses resolve against the URL of the JSP page itself, not the action that forwarded to it. Craig
RE: Avoid JSP caching by the browser
Why are we not using html meta tag expires am i missing something.? Vinay Shukla HPBluestone -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 3:44 PM To: [EMAIL PROTECTED] Subject: Re: Avoid JSP caching by the browser Lind Jürgen wrote: > Hi there, > > I have the following problem: in order to prevent the web-browser > from using cached versions of a jsp, we plan to add some unique > timestamp (which will actually be ignored by the jsp) to the url > that calls the jsp, e.g.: > > myjsp > > While this works fine when cookies are enabled, it fails when > cookies are disabled because it does not make use of the URL > rewriting capabilities of the Struts taglib. > > Using the html:link tag, however, introduces the difficulty how to > dynamically add the timestamp. Using something like > > myjsp > This fails because you cannot intermix constant text and runtime expressions in a single attribute -- it has to be one or the other: myjsp Note the use of single quotes around the entire expression so that the parser doesn't get confused by the double quotes around Java strings. > > fails as the Java Code will not get interpreted but it will be literally > appended to the URL, causing a Decode Error in the receiving JSP. > > Has anyone experienced similar problems (with the web browser caching > jsp pages) and could offer some help or are there any suggestions wrt. > the above evaluation problem? > > > Regards > > Jürgen > Craig McClanahan
Re: must restart tomcat
Just FYI - it's not that hard. toolkits to get this info http://www.inf.fu-berlin.de/~dahm/JavaClass/ (lgpl'd byte code tools) or CFParse from IBM alphaworks (both can be used the get all the classes used by a class) some tools that do this sort of thing... http://vorlon.eecs.cwru.edu/~jrl7/java/ImportMin.txt (tells you what you need to import) Dash-o also does something like this to clean up imports, and woodenchair's Utility+ Although I'd bet my $.02 that all tomcat 4.x does is watch timestamps on all the files under classes. And slightly OT - wasn't life nice and simple in Java before you had to understand class loaders...? --tom "Shkuro, Yuri" wrote: > > I am not aware of any mechanisms in Java to inspect a class and determine > its dependencies (although javac obviously has to do it, but its > proprietory). > I think this issue is too difficult for any container to handle > automatically. > > -Original Message- > From: gustav spellauge [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, February 14, 2001 3:21 PM > To: [EMAIL PROTECTED] > Subject: Re: must restart tomcat > > thanks, > > that's what i thught but now i can be quit shure. > > do you think/know if tmcat 4.x will support hotswapping of all dependencies > ? > > g. > > "Shkuro, Yuri" wrote: > > > Tomcat 3.2 only supports hot-swapping of servlet classes, but not their > > dependencies like bean classes, so you either have to restart Tomcat, or > > use its admin interface to remove your application context and add it > again. > > > > Note that the latter is not necessarily faster (usually takes me four hits > > on the URL: list/delete/add/list), unless you have many applications in > your > > webapp directory (and you shouldn't if you plan to restart often). Also, > > I noticed that when a context is added via admin interface, Tomcat does > > not set init parameters for this context, which my application depends on. > > > > YS. > > > > -Original Message- > > From: Maya Muchnik [mailto:[EMAIL PROTECTED]] > > Sent: Wednesday, February 14, 2001 2:47 PM > > To: [EMAIL PROTECTED] > > Subject: Re: must restart tomcat > > > > I think, you need to config your server.xml file to tell to "reload" your > > classes after they are changed / rebuilt. > > Do you config server.xml for your new application? > > > > gustav spellauge wrote: > > > > > again my qustion: > > > > > > after a change in any of a formbean class or an action class i will have > > > to restart tomcat (3.2) otherwise my app. runs into cast-exceptions. > > > > > > is there any way to avoid this restart. maybe something is wrong with my > > > setup. > > > > > > thanks in advance > > > > > > g.
RE: html:password
I agree. There are at least a couple of reasons for doing it this way: 1) If the user has not logged out, a hacker could decide to change the user's password without knowing the old password. Thus, the user is now locked out and unable to regain access to the system. 2) Perhaps even worse, a hacker could access the password change screen and see the existing password without the user knowing their password has now been compromised. Scott > -Original Message- > From: Shkuro, Yuri [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, February 14, 2001 3:43 PM > To: '[EMAIL PROTECTED]' > Subject: RE: html:password > > > I can't recall an application where a user would be prompted to edit > a password. It's always > > old password: > new password: > veify new password: > > The only case where returning the password could make sence > is when the > password field is on a very long form, where the user can > make a mistake > and has to return to this form - in this case it is quite > annoying retyping > the password over and over. However, smart sites bypass this > and do not > show the password field after the first submission or show > but don't require > entering it, even if the user is returned to the form on an > error (e.g., one > can > encrypt it and store in a hidden field, and put some junk > like 1234567 into > the password field to indicate that "something" was enterred > and doesn't > have > to be retyped). > > YS > > -Original Message- > From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] > > For login dialogs, it makes sense that you do not want the > password echoed > (even > if it shows asterisks). But what about the case of when you > are editing an > existing password (as the Struts example application does)? > The behavior of > not > echoing actually broke this code. > > Craig McClanahan >
RE: ActionForm property naming conventions
Hi Craig, Yes I expected this to work as well, since the first letter is not capitalized. Craig (T) provided some info from the spec, but this should only apply if both the first and second letter are caps. Not a big deal really (just changed my property names), but something to be aware of... Thanks, Bob -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 3:53 PM To: [EMAIL PROTECTED] Subject: Re: ActionForm property naming conventions [EMAIL PROTECTED] wrote: > My question is best asked with an example... Why is it that I am unable to > create a property named "nTerminal" for my ActionForm/JSP? This problem > occurs when there is an uppercase letter in the 2nd position of the property > name. If I change the name to "nterminal" or "ntErminal" then things work > just fine. In other words- getNterminal() is recognized by Struts, but > getNTerminal() is invalid and results in a runtime error in the html tag. Is > this a limitation imposed by Javabean conventions or is this a Struts > specific issue? (If you think I am crazy, then perhaps this problem is > specific to WebLogic.) > > Thanks, > Bob Struts uses the introspection capabilities Java Reflection APIs -- in particular, it calls java.beans.Introspector.getBeanInfo() -- to figure out the names of the getter and setter methods for various properties. The introspector, in turn, enforces the design patterns that are documented in the JavaBeans specification. It is possible that there are some special cases for the second letter of a property name being capitalized. I would have expected "getNTerminal" and "setNTerminal" to work for a property named "nTerminal". Craig
A couple more frames (and non-frames) questions
I have a couple more questions regarding Struts and frames as well as a question concerning web site organization. I was able to get my frames-based Struts application to sort of work after adding the "target" property to my logon form. This leads to my next question. My current page has the Navigation frame, the body frame and the footer frame. I had made my footer a jsp which was design to display information based on who the user logged in as. Before the user logs in, the foot is basically blank. I present the logon screen. Once the user logs on, I want to display a new page in the body frame, but I also want the footer to update. Unfortunately, it appears that when the logon form finishes transferring to the "success" page, only the body frame updates. (Not that this should be too surprising). My question is, how can I get the footer frame to update as well? Can I programatically get other frames to update when an action occurs? Or do I just need to restructure how my page works? Related to the above, the current structure of my web application has some pages at the root level and some in subdirectories. For example, my logon.jsp is in the root, but the jsp and html associated with the success action exists in a subdirectory. When I logged into my application, I was able to most of the contents of my next page to display, but not everything. I also had to tweak some of the paths in my html. For example, previously I had a reference to a style sheet as "../style.css". When the page was displayed, the style was not applied. If I changed the reference to "style.css", the style was correctly applied.However, my page also referenced an html file for one of its frames. This page never appeared, and no error was displayed either. I'm sort of confused as to where the system thinks it is after performing a forward action. I'm sure I could get everything to work if I just put it all in the root directory, but I'm not sure that's what I want to do. Can anyone offer any suggestions on good ways to organize Struts applications? Thanks again.
Re: must restart tomcat
"Shkuro, Yuri" wrote: > I am not aware of any mechanisms in Java to inspect a class and determine > its dependencies (although javac obviously has to do it, but its > proprietory). In Tomcat, it only works in the restricted case where the class is loaded from an individual disk file under WEB-INF/classes. Tomcat includes a custom classloader for the webapp which remembers the date/time stamp of the class file when each class was loaded, and then periodically checks the directory for files that have timestamps later than that. > > I think this issue is too difficult for any container to handle > automatically. > It's definitely a pain to implement -- be glad the containers do it for you :-) Craig
Re: must restart tomcat
gustav spellauge wrote: > thanks, > > that's what i thught but now i can be quit shure. > > do you think/know if tmcat 4.x will support hotswapping of all dependencies ? > Tomcat 4.0 supports autoreload when any class (not just a servlet) is updated, as long as that class is unpacked in WEB-INF/classes. There is a background thread that checks for updates, by default every 15 seconds. Instead of the admin application of 3.2, there is also a manager application in 4.0 that can trigger a reload with a single request: http://localhost:8080/manager/reload?path=/myapp where "/myapp" is the context path of the application you want to reload. This works even if "autoreload" is not set on the app in server.xml, so you might find it faster to trigger reloads this way. The only thing needed to make it work is to create a user in conf/tomcat-users.xml that has the role "manager" -- you will be challenged the first time you reload for the username/password, but after that you will just need to submit. When I'm developing an app on Tomcat 4.0, I just leave a small browser window open on the URL mentioned above. Whenever I want to reload the app, I just click the Reload button in this window. Very quick and easy. > > g. > Craig
RE: html:password
Joerg, I disagree with your first argument- This option should be left up to the developer to decide. Significant "ramifications" should be described in the documentation, and I think are already understood by most web programmers. If I want to compromise my site security then I should be able to do so. Bob -Original Message- From: Joerg Beekmann [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 2:19 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: html:password I argued not to echo the password when this first came up. I still feel that way and also feel there should not be a boolean allowing the password to be echoed back. Not everyone who sets the boolean to echo will understand the ramifications. I also don't believe we would be doing the user a service by echoing the password back, in fact quite the opposite. Think about it; presumably the password is displayed in the form and is echoed back the same way. The use doesn't know which characters are incorrect so will need to select the entire password and retype it. It is simpler for them if the field is blank and has focus in which case they just type the password again and enter. In my experience that is the way logon dialogs work. Joerg > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Matthias Bauer > Sent: February 14, 2001 12:10 AM > To: [EMAIL PROTECTED] > Subject: Re: html:password > > > As I asked the original question on the new behaviour for the > password field, > let me say this: I did not see the problem when I asked my > question, but now I > am perfectly aware (and I admit, it is quite obvious) of the > security risk you > are imposing when you send the current value of the password > along in the html > source. Therefore I would say that for the sake of security > there shouldn't be a > boolean value, so people are not tempted to implement a risky > solution. > > --- Matthias > > > Matthias Bauer +++ [EMAIL PROTECTED] +++ LivingLogic AG +++ www.livinglogic.de "Craig R. McClanahan" wrote: > > Maya Muchnik wrote: > > > I have seen the similar behavior for edit option. The form (struts-example) does > > not display "*", but it does not require to re-enter password again either. > > > > This behavior was changed due to concerns about the fact that the old password would > appear (in the HTML source) when you were on the login page and -- for example -- > mistyped by one character your actual password. A hacker who saw the incorrect value > is a lot closer to guessing the right one. > > Would it make sense to have a boolean option to "have it your way" on this? > > Craig
Re: ActionForm property naming conventions
[EMAIL PROTECTED] wrote: > My question is best asked with an example... Why is it that I am unable to > create a property named "nTerminal" for my ActionForm/JSP? This problem > occurs when there is an uppercase letter in the 2nd position of the property > name. If I change the name to "nterminal" or "ntErminal" then things work > just fine. In other words- getNterminal() is recognized by Struts, but > getNTerminal() is invalid and results in a runtime error in the html tag. Is > this a limitation imposed by Javabean conventions or is this a Struts > specific issue? (If you think I am crazy, then perhaps this problem is > specific to WebLogic.) > > Thanks, > Bob Struts uses the introspection capabilities Java Reflection APIs -- in particular, it calls java.beans.Introspector.getBeanInfo() -- to figure out the names of the getter and setter methods for various properties. The introspector, in turn, enforces the design patterns that are documented in the JavaBeans specification. It is possible that there are some special cases for the second letter of a property name being capitalized. I would have expected "getNTerminal" and "setNTerminal" to work for a property named "nTerminal". Craig
RE: html:password
I can't recall an application where a user would be prompted to edit a password. It's always old password: new password: veify new password: The only case where returning the password could make sence is when the password field is on a very long form, where the user can make a mistake and has to return to this form - in this case it is quite annoying retyping the password over and over. However, smart sites bypass this and do not show the password field after the first submission or show but don't require entering it, even if the user is returned to the form on an error (e.g., one can encrypt it and store in a hidden field, and put some junk like 1234567 into the password field to indicate that "something" was enterred and doesn't have to be retyped). YS -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] For login dialogs, it makes sense that you do not want the password echoed (even if it shows asterisks). But what about the case of when you are editing an existing password (as the Struts example application does)? The behavior of not echoing actually broke this code. Craig McClanahan
Re: Avoid JSP caching by the browser
Lind Jürgen wrote: > Hi there, > > I have the following problem: in order to prevent the web-browser > from using cached versions of a jsp, we plan to add some unique > timestamp (which will actually be ignored by the jsp) to the url > that calls the jsp, e.g.: > > myjsp > > While this works fine when cookies are enabled, it fails when > cookies are disabled because it does not make use of the URL > rewriting capabilities of the Struts taglib. > > Using the html:link tag, however, introduces the difficulty how to > dynamically add the timestamp. Using something like > > myjsp > This fails because you cannot intermix constant text and runtime expressions in a single attribute -- it has to be one or the other: myjsp Note the use of single quotes around the entire expression so that the parser doesn't get confused by the double quotes around Java strings. > > fails as the Java Code will not get interpreted but it will be literally > appended to the URL, causing a Decode Error in the receiving JSP. > > Has anyone experienced similar problems (with the web browser caching > jsp pages) and could offer some help or are there any suggestions wrt. > the above evaluation problem? > > > Regards > > Jürgen > Craig McClanahan
Re: Old questions that die hard
Maya Muchnik wrote: > Thank you, David. > I have tested struts-example with disabled JavaScript on Netscape. It is still > working!!! > Maya > The only JavaScript code in the Struts example is the attempt to set input focus on the first field on each form. In this case, the lack of JavaScript is pretty innocuous. For more complex user interfaces, JavaScript might be required (by the app) to be turned on. Craig
More HTML element examples
I've been through the examples included in the struts0.5 release. Specifically I'm looking for examples of using the element with dynamically generated . I have seen the element and read its definition but still am unclear on how to use it. For example, I want to retrieve some data from the database, populate a HashMap and have the options list generated using the hash key as the value attribute of the option tag and the hash value as the body of the option tag. If I have missed this somewhere in the documentation, I apologize. I scanned the resources and did not see anything that looked like "html element examples". Robert Taylor [EMAIL PROTECTED] 770.891.9858 (this may change soon) http://www.mulework.com
Re: html:password
Joerg Beekmann wrote: > I argued not to echo the password when this first came up. I still feel that > way and also feel there should not be a boolean allowing the password to be > echoed back. Not everyone who sets the boolean to echo will understand the > ramifications. > > I also don't believe we would be doing the user a service by echoing the > password back, in fact quite the opposite. Think about it; presumably the > password is displayed in the form and is echoed back the same way. The > use doesn't know which characters are incorrect so will need to select the > entire password and retype it. It is simpler for them if the field is blank > and has focus in which case they just type the password again and enter. In > my experience that is the way logon dialogs work. > For login dialogs, it makes sense that you do not want the password echoed (even if it shows asterisks). But what about the case of when you are editing an existing password (as the Struts example application does)? The behavior of not echoing actually broke this code. > > Joerg > Craig McClanahan
RE: must restart tomcat
I am not aware of any mechanisms in Java to inspect a class and determine its dependencies (although javac obviously has to do it, but its proprietory). I think this issue is too difficult for any container to handle automatically. -Original Message- From: gustav spellauge [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 3:21 PM To: [EMAIL PROTECTED] Subject: Re: must restart tomcat thanks, that's what i thught but now i can be quit shure. do you think/know if tmcat 4.x will support hotswapping of all dependencies ? g. "Shkuro, Yuri" wrote: > Tomcat 3.2 only supports hot-swapping of servlet classes, but not their > dependencies like bean classes, so you either have to restart Tomcat, or > use its admin interface to remove your application context and add it again. > > Note that the latter is not necessarily faster (usually takes me four hits > on the URL: list/delete/add/list), unless you have many applications in your > webapp directory (and you shouldn't if you plan to restart often). Also, > I noticed that when a context is added via admin interface, Tomcat does > not set init parameters for this context, which my application depends on. > > YS. > > -Original Message- > From: Maya Muchnik [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, February 14, 2001 2:47 PM > To: [EMAIL PROTECTED] > Subject: Re: must restart tomcat > > I think, you need to config your server.xml file to tell to "reload" your > classes after they are changed / rebuilt. > Do you config server.xml for your new application? > > gustav spellauge wrote: > > > again my qustion: > > > > after a change in any of a formbean class or an action class i will have > > to restart tomcat (3.2) otherwise my app. runs into cast-exceptions. > > > > is there any way to avoid this restart. maybe something is wrong with my > > setup. > > > > thanks in advance > > > > g.
Re: must restart tomcat
thanks, that's what i thught but now i can be quit shure. do you think/know if tmcat 4.x will support hotswapping of all dependencies ? g. "Shkuro, Yuri" wrote: > Tomcat 3.2 only supports hot-swapping of servlet classes, but not their > dependencies like bean classes, so you either have to restart Tomcat, or > use its admin interface to remove your application context and add it again. > > Note that the latter is not necessarily faster (usually takes me four hits > on the URL: list/delete/add/list), unless you have many applications in your > webapp directory (and you shouldn't if you plan to restart often). Also, > I noticed that when a context is added via admin interface, Tomcat does > not set init parameters for this context, which my application depends on. > > YS. > > -Original Message- > From: Maya Muchnik [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, February 14, 2001 2:47 PM > To: [EMAIL PROTECTED] > Subject: Re: must restart tomcat > > I think, you need to config your server.xml file to tell to "reload" your > classes after they are changed / rebuilt. > Do you config server.xml for your new application? > > gustav spellauge wrote: > > > again my qustion: > > > > after a change in any of a formbean class or an action class i will have > > to restart tomcat (3.2) otherwise my app. runs into cast-exceptions. > > > > is there any way to avoid this restart. maybe something is wrong with my > > setup. > > > > thanks in advance > > > > g.
Re: must restart tomcat
that's not the problem i duoblechecked it. see the answer of Maya Muchnik. i think that's the probalem. tanks anyway. g. Maya Muchnik wrote: > I think, you need to config your server.xml file to tell to "reload" your > classes after they are changed / rebuilt. > Do you config server.xml for your new application? > > gustav spellauge wrote: > > > again my qustion: > > > > after a change in any of a formbean class or an action class i will have > > to restart tomcat (3.2) otherwise my app. runs into cast-exceptions. > > > > is there any way to avoid this restart. maybe something is wrong with my > > setup. > > > > thanks in advance > > > > g.
AW: Struts and Frames
No, I guess not. We make heavy use of framesets and frames and we did not config anything special. You should use the target-property of your form in the logon.jsp to point the result to the frame you came from. Oliver -- Original Nachricht -- >I'm working to build a web based application using Struts. Currently we > >have a mocked-up prototype which uses frames (iframes in particular) to >control what gets displayed on the screen. In general the format of our >or >pages consists of three frames: > >Top (header/navigation stuff) >Main (the thing the user is currently doing) >Footer > >I've tried to "strutsifiy" this prototype but I haven't quite figured out > >the best way to handle things. The one thing I did was convert the footer > >from "footer.html" to "footer.jsp". This lets me dynamically change the > >content of the footer. This seems to work. I then tried to modify the >main body. I started by making the main body point to my "logon.do" >action. This worked fine. The screen came up and my logon stuff was in > >the middle frame. However, once the user logged on, my middle pane went > >blank. In my config, I had the logon page forward to my success action, > >but my success action never displayed. Is there anything special I need >to >do to make my struts application usable in a framed environment? > >Thanks! >
Thanks
Hi, today I want to thank everybody who was involved making STRUTS such a simple but effective framework and to everybody in this mailing list showing the world :-) that OpenSource is an working alternative. We, that is a large insurance company (80.000 employees), today decided to stuff our first (strategic) intranet project (location Germany) with STRUTS. Special Thanks to Graig, but Graig one thing left to say: Talk to your sun and convice him to work with such cool things like JAVA and J2EE :-)). Oliver
RE: Last Call for Struts 1.0 Bugs
I don't know if this qualifies as a bug or a feature proposal. I am using Structs as a framework to a sample application that generates a report. The application has two kinds of users (regular and superuser), who must set certain parameters before doing POST to /report.do The problem is that regular users go directly to /report.do (via GET) and "print" must be "=screen" for them, which is achieved by setting the property of the form bean to "screen" in form's reset() method. On the other hand, superusers go to report from a JSP page (via POST), where they select the parameter value like this: Printer-friendly Screen-friendly Since the form doesn't exist when JSP is called, it's created with print=screen, and superuser see the second radio-button checked, where is the business requirement is that the first is selected by default. Unfortunately, does not allow overriding form's default settings. It would be nice to do something like this: Printer-friendly Screen-friendly which takes precedence over default values from reset() method if the form didn't exist in the first place. It seems like a simple thing to do, but I don't know if this can make its way to Struts 1.0 Also, it would be correct to have a method in the ActionForm inteface that indicates to the action class whether the form properties were populated from the request or they were set to default values by the form's reset() method (something like HttpSession.isNew() ). YS. -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Monday, February 12, 2001 5:31 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Last Call for Struts 1.0 Bugs The few remaining Struts bug reports are feeling kind of lonely. Do you have any more bugs that you would like to see fixed before Struts 1.0 is released? If so, please post them to the bug tracking system at: http://nagoya.apache.org/bugzilla/ under product "Struts". Even if the bug has been reported to a Struts mailing list, this is the best way to ensure that your bug does not get missed in the final rush towards release. Feature requests are welcome as well, of course, but the focus right at the moment is on identifying and squashing any remaining bugs so that 1.0 comes out of the box as an extremely solid platform for building web applications. Craig McClanahan
RE: must restart tomcat
Tomcat 3.2 only supports hot-swapping of servlet classes, but not their dependencies like bean classes, so you either have to restart Tomcat, or use its admin interface to remove your application context and add it again. Note that the latter is not necessarily faster (usually takes me four hits on the URL: list/delete/add/list), unless you have many applications in your webapp directory (and you shouldn't if you plan to restart often). Also, I noticed that when a context is added via admin interface, Tomcat does not set init parameters for this context, which my application depends on. YS. -Original Message- From: Maya Muchnik [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 2:47 PM To: [EMAIL PROTECTED] Subject: Re: must restart tomcat I think, you need to config your server.xml file to tell to "reload" your classes after they are changed / rebuilt. Do you config server.xml for your new application? gustav spellauge wrote: > again my qustion: > > after a change in any of a formbean class or an action class i will have > to restart tomcat (3.2) otherwise my app. runs into cast-exceptions. > > is there any way to avoid this restart. maybe something is wrong with my > setup. > > thanks in advance > > g.
Struts and Frames
I'm working to build a web based application using Struts. Currently we have a mocked-up prototype which uses frames (iframes in particular) to control what gets displayed on the screen. In general the format of our or pages consists of three frames: Top (header/navigation stuff) Main (the thing the user is currently doing) Footer I've tried to "strutsifiy" this prototype but I haven't quite figured out the best way to handle things. The one thing I did was convert the footer from "footer.html" to "footer.jsp". This lets me dynamically change the content of the footer. This seems to work. I then tried to modify the main body. I started by making the main body point to my "logon.do" action. This worked fine. The screen came up and my logon stuff was in the middle frame. However, once the user logged on, my middle pane went blank. In my config, I had the logon page forward to my success action, but my success action never displayed. Is there anything special I need to do to make my struts application usable in a framed environment? Thanks!
AW: Forwarding an action to multiple JSPs
We have the same problem. We forward our "success" to a frameset (jsp) with two frames included that point to different jsps. The problem we have with this approach is the fact that we produce three requests and 'loose' our errors because those are bound to different requests. Oliver -- Original Nachricht -- >Is there a way to forward a request to more than on >JSP from the same action class, and have the JSPs >updated different frames? > >Scenerio: >When a user logs into the system and the login request >gets forwarded to the "LoginAction" class, I would >like to forward this request to two JSPs: 1.) To >perform the normal authentication routine and display >the resulting success/failure message to a particular >frame, and 2.) to get a list of the users currently >logged into the system and display it in a separate >frame. > >Any help/pointers would be greatly appreciated. > >Shad. > >__ >Do You Yahoo!? >Get personalized email addresses from Yahoo! Mail - only $35 >a year! http://personal.mail.yahoo.com/ >
Re: must restart tomcat
I think, you need to config your server.xml file to tell to "reload" your classes after they are changed / rebuilt. Do you config server.xml for your new application? gustav spellauge wrote: > again my qustion: > > after a change in any of a formbean class or an action class i will have > to restart tomcat (3.2) otherwise my app. runs into cast-exceptions. > > is there any way to avoid this restart. maybe something is wrong with my > setup. > > thanks in advance > > g.
must restart tomcat
again my qustion: after a change in any of a formbean class or an action class i will have to restart tomcat (3.2) otherwise my app. runs into cast-exceptions. is there any way to avoid this restart. maybe something is wrong with my setup. thanks in advance g.
Forwarding an action to multiple JSPs
Is there a way to forward a request to more than on JSP from the same action class, and have the JSPs updated different frames? Scenerio: When a user logs into the system and the login request gets forwarded to the "LoginAction" class, I would like to forward this request to two JSPs: 1.) To perform the normal authentication routine and display the resulting success/failure message to a particular frame, and 2.) to get a list of the users currently logged into the system and display it in a separate frame. Any help/pointers would be greatly appreciated. Shad. __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/
Re: [Fwd: Re: Taglib URI error in Weblogic60]
Sorry to bother you again. It was a problem with web.xml file. The problem was correct. Maya Muchnik wrote: Guys, you are very good! Please help Mark. Original Message Subject: Re: Taglib URI error in Weblogic60 Date: Wed, 14 Feb 2001 14:22:41 -0500 From: Maya Muchnik <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] Organization: Puma Technology To: [EMAIL PROTECTED] References: <001d01c096ba$7eef7680$[EMAIL PROTECTED]> The last my attempt. Mark, Do you have "-" in the following or this is your typing: in jsp -<%@ taglib uri="taglib" prefix="input" %> in web.xml - Maya Mark Scott wrote: >Try to use "/taglib" instead of "taglib" in both >your JSP pages and and web.xml. Also make sure the "taglib.tld" >file is actually under the directory "WEB-INF" of your web application All these are true, I've tried numerous combinations, still the mesg persists my jsp is under my webapp root the web.xml & taglib.tld are both in WEB-INF see my code below.. Can anyone help with this ? -Original Message- From: Hui Lin [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 1:35 PM To: [EMAIL PROTECTED] Subject: RE: Taglib URI error in Weblogic60 Try to use "/taglib" instead of "taglib" in both your JSP pages and and web.xml. Also make sure the "taglib.tld" file is actually under the directory "WEB-INF" of your web application Hui Lin -Original Message- From: Mark Scott [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 12:17 PM To: [EMAIL PROTECTED] Subject: Taglib URI error in Weblogic60 Hi All, having some trouble deploying my custom Tag, this is the error... thanks in advance Parsing of JSP File '/test/tagpage.jsp' failed: /test/tagpage.jsp(1): Could not parse deployment descriptor: java.io.IOException: cannot resolve 'taglib' into a valid tag library probably occurred due to an error in /test/tagpage.jsp line 1: <%@ taglib uri="taglib" prefix="input" %> -- my directories look like this myserver test - tagpage.jsp WEB-INF -web.xml -taglib.tld --- my code: in jsp -<%@ taglib uri="taglib" prefix="input" %> in web.xml - 1.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd"> taglib /WEB-INF/taglib.tld
[Fwd: Re: Taglib URI error in Weblogic60]
Guys, you are very good! Please help Mark. Original Message Subject: Re: Taglib URI error in Weblogic60 Date: Wed, 14 Feb 2001 14:22:41 -0500 From: Maya Muchnik <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] Organization: Puma Technology To: [EMAIL PROTECTED] References: <001d01c096ba$7eef7680$[EMAIL PROTECTED]> The last my attempt. Mark, Do you have "-" in the following or this is your typing: in jsp -<%@ taglib uri="taglib" prefix="input" %> in web.xml - Maya Mark Scott wrote: >Try to use "/taglib" instead of "taglib" in both >your JSP pages and and web.xml. Also make sure the "taglib.tld" >file is actually under the directory "WEB-INF" of your web application All these are true, I've tried numerous combinations, still the mesg persists my jsp is under my webapp root the web.xml & taglib.tld are both in WEB-INF see my code below.. Can anyone help with this ? -Original Message- From: Hui Lin [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 1:35 PM To: [EMAIL PROTECTED] Subject: RE: Taglib URI error in Weblogic60 Try to use "/taglib" instead of "taglib" in both your JSP pages and and web.xml. Also make sure the "taglib.tld" file is actually under the directory "WEB-INF" of your web application Hui Lin -Original Message- From: Mark Scott [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 12:17 PM To: [EMAIL PROTECTED] Subject: Taglib URI error in Weblogic60 Hi All, having some trouble deploying my custom Tag, this is the error... thanks in advance Parsing of JSP File '/test/tagpage.jsp' failed: /test/tagpage.jsp(1): Could not parse deployment descriptor: java.io.IOException: cannot resolve 'taglib' into a valid tag library probably occurred due to an error in /test/tagpage.jsp line 1: <%@ taglib uri="taglib" prefix="input" %> -- my directories look like this myserver test - tagpage.jsp WEB-INF -web.xml -taglib.tld --- my code: in jsp -<%@ taglib uri="taglib" prefix="input" %> in web.xml - 1.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd"> taglib /WEB-INF/taglib.tld
RE: html:password
I argued not to echo the password when this first came up. I still feel that way and also feel there should not be a boolean allowing the password to be echoed back. Not everyone who sets the boolean to echo will understand the ramifications. I also don't believe we would be doing the user a service by echoing the password back, in fact quite the opposite. Think about it; presumably the password is displayed in the form and is echoed back the same way. The use doesn't know which characters are incorrect so will need to select the entire password and retype it. It is simpler for them if the field is blank and has focus in which case they just type the password again and enter. In my experience that is the way logon dialogs work. Joerg > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Matthias Bauer > Sent: February 14, 2001 12:10 AM > To: [EMAIL PROTECTED] > Subject: Re: html:password > > > As I asked the original question on the new behaviour for the > password field, > let me say this: I did not see the problem when I asked my > question, but now I > am perfectly aware (and I admit, it is quite obvious) of the > security risk you > are imposing when you send the current value of the password > along in the html > source. Therefore I would say that for the sake of security > there shouldn't be a > boolean value, so people are not tempted to implement a risky > solution. > > --- Matthias > > > Matthias Bauer +++ [EMAIL PROTECTED] +++ LivingLogic AG +++ www.livinglogic.de "Craig R. McClanahan" wrote: > > Maya Muchnik wrote: > > > I have seen the similar behavior for edit option. The form (struts-example) does > > not display "*", but it does not require to re-enter password again either. > > > > This behavior was changed due to concerns about the fact that the old password would > appear (in the HTML source) when you were on the login page and -- for example -- > mistyped by one character your actual password. A hacker who saw the incorrect value > is a lot closer to guessing the right one. > > Would it make sense to have a boolean option to "have it your way" on this? > > Craig
Global URL Parameter or better idea ??
We are building a large scale WebLogic 6.0 application using Struts and I have an implementation question. We have a need to address multiple browser windows on the same client separately. Our application data is based on the user being part of a 'location' and we want to support an administrator that would have the ability to administer multiple locations simultaneously from 1 client using multiple browser windows. Since multiple browsers share the same session ID, we can't save the location id in the session. We don't know of a better way to track each browser's activity separately without placing a URL parameter on the end of all the links on a given page so that the link would tell us what location this request is directed at as in this sample link: http://sampledomain.com/login.do?location=0001 If this is the best solution, is there a way in Struts to specify a global parameter that would automatically get transferred from the request to the response and then get tagged onto every URL that is created using the struts HTTP tags? We did implement code that modifies the classes in struts to allow what we call an AutoForwardParm in the web.xml file. We then modified the taglib for each tag that generates a URL link and we append the value of this AutoForwardParm. Our team is new to web development and we may be missing something obvious in HTTP or the Servlet spec. Please advise kindly. Any input is appreciated. Dave Lavin application/ms-tnef
Re: Using ActionErrors
I think (sorry if I am wrong or give a bad suggestion) that you can have a pair (boolean - field) in your form. And in your ActionForm set this boolean to true if an error occurs. Then in your jsp file test this boolean for "true" value. If so - display some image before your field (or you can change a color for the field). Adjust your fields so, then enough space will be for the image. Maya Padma Ginnaram wrote: I need to put the indicator right next to the field(s) that result in error. As Hal explains in his response that the error description can be displayed using the property name corresponding to the field. Instead of displaying the error description I need to conditionally display an image or highlight the field in some way if an error exists corresponding to that field's property.Appreciate your help. -Original Message- From: Maya Muchnik [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 12:32 PM To: [EMAIL PROTECTED] Subject: Re: Using ActionErrors Padma, Can you be more specific? Do you need to display an error corresponding a label to the field, or you need to display a field number ? I think, struts-example shows how to display a field label together with its error. And all errors are displayed on the top of the page. Do you need something different? Maya Padma Ginnaram wrote: I need to display an indicator for the fields that result in error and display all the errors on the top of the page. Using the error tag I can display all the errors at one location, but I am not able to figure out how to display the indicator. Any suggestions? -Original Message- From: Deadman, Hal [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 13, 2001 5:07 PM To: [EMAIL PROTECTED] Subject: RE: Using ActionErrors I haven't tried it but I thought that you could specify the property attribute on the errors tag and it would pull out the error that has that property. When you add to the ActionErrors object the property is the first argument. You should probably use the property name that cooresponds to the property of the form field. -Original Message- From: David J Snowsill [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 13, 2001 4:31 PM To: [EMAIL PROTECTED] Subject: Using ActionErrors Can anybody point me in the right direction on how to associate a particular error with a particular input field in a form Thanks David J Snowsill Principal Consultant Calibre Financial Technology [EMAIL PROTECTED] Office: (61-2) 9212 0527 Mobile: 0403 091 468 *** This E-mail is intended only for the use of the individual or entity named above and may contain information that is confidential and privileged. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this E-mail is strictly prohibited. If you have received this E-mail in error, please notify us immediately by return e-mail to the sender or by telephoning one of our staff on (61-2) 9212 0527. Please then destroy any copies of the original message that are in your possession. Thank you. ***
RE: Using ActionErrors
I need to put the indicator right next to the field(s) that result in error. As Hal explains in his response that the error description can be displayed using the property name corresponding to the field. Instead of displaying the error description I need to conditionally display an image or highlight the field in some way if an error exists corresponding to that field's property. Appreciate your help. -Original Message-From: Maya Muchnik [mailto:[EMAIL PROTECTED]]Sent: Wednesday, February 14, 2001 12:32 PMTo: [EMAIL PROTECTED]Subject: Re: Using ActionErrorsPadma, Can you be more specific? Do you need to display an error corresponding a label to the field, or you need to display a field number ? I think, struts-example shows how to display a field label together with its error. And all errors are displayed on the top of the page. Do you need something different? Maya Padma Ginnaram wrote: I need to display an indicator for the fields that result in error and display all the errors on the top of the page. Using the error tag I can display all the errors at one location, but I am not able to figure out how to display the indicator. Any suggestions? -Original Message- From: Deadman, Hal [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 13, 2001 5:07 PM To: [EMAIL PROTECTED] Subject: RE: Using ActionErrors I haven't tried it but I thought that you could specify the property attribute on the errors tag and it would pull out the error that has that property. When you add to the ActionErrors object the property is the first argument. You should probably use the property name that cooresponds to the property of the form field. -Original Message- From: David J Snowsill [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 13, 2001 4:31 PM To: [EMAIL PROTECTED] Subject: Using ActionErrors Can anybody point me in the right direction on how to associate a particular error with a particular input field in a form Thanks David J Snowsill Principal Consultant Calibre Financial Technology [EMAIL PROTECTED] Office: (61-2) 9212 0527 Mobile: 0403 091 468 *** This E-mail is intended only for the use of the individual or entity named above and may contain information that is confidential and privileged. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this E-mail is strictly prohibited. If you have received this E-mail in error, please notify us immediately by return e-mail to the sender or by telephoning one of our staff on (61-2) 9212 0527. Please then destroy any copies of the original message that are in your possession. Thank you. ***
Re: Using ActionErrors
Padma, Can you be more specific? Do you need to display an error corresponding a label to the field, or you need to display a field number ? I think, struts-example shows how to display a field label together with its error. And all errors are displayed on the top of the page. Do you need something different? Maya Padma Ginnaram wrote: I need to display an indicator for the fields that result in error and display all the errors on the top of the page. Using the error tag I can display all the errors at one location, but I am not able to figure out how to display the indicator. Any suggestions? -Original Message- From: Deadman, Hal [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 13, 2001 5:07 PM To: [EMAIL PROTECTED] Subject: RE: Using ActionErrors I haven't tried it but I thought that you could specify the property attribute on the errors tag and it would pull out the error that has that property. When you add to the ActionErrors object the property is the first argument. You should probably use the property name that cooresponds to the property of the form field. -Original Message- From: David J Snowsill [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 13, 2001 4:31 PM To: [EMAIL PROTECTED] Subject: Using ActionErrors Can anybody point me in the right direction on how to associate a particular error with a particular input field in a form Thanks David J Snowsill Principal Consultant Calibre Financial Technology [EMAIL PROTECTED] Office: (61-2) 9212 0527 Mobile: 0403 091 468 *** This E-mail is intended only for the use of the individual or entity named above and may contain information that is confidential and privileged. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this E-mail is strictly prohibited. If you have received this E-mail in error, please notify us immediately by return e-mail to the sender or by telephoning one of our staff on (61-2) 9212 0527. Please then destroy any copies of the original message that are in your possession. Thank you. ***
Re: iterate / bean write problem
Basically, when the "property" attribute is used with the logic:iterate tag, it assumes that there is a jsp bean that you made available in your session named and that this bean has a property named , it then uses this property as the object it will iterate through. So in your example, the iterator is expected to be the "orders.Orders" property (you shouldn't capitalize the "O" on orders). It also assumes that your "Order" object has getters named getORDER_ID() and getREVEIVER_NAME(). If this is not the case, and you really have getters of format getOrder_Id() and getReceiver_Name, please use all lowercase characters for your bean:write property value (except for letters that are actually capitialized in the getters excluding the first character). I think what you want to do is just get rid of the "property" attribute and change your code to look like this: [EMAIL PROTECTED] wrote: > Hello, > > I'm struggling with a problem about iterate and bean write as used in the > example application. > > I have an object OrderList which is registered as the attribute "orders". This > object contains > objects from the type Order (OrderList actually is an ArrayList). There is a > property getter method > for OrderList available which returns an array of Order objects (Order[]). It is > named getOrders(). > > So I want Struts to browse through the list of orders and display the properties > of each Order object > inside the list. > > The portion of my JSP file looks like: > > > > > > > > > > > > > > > But when I run the application, I get the error message: > > javax.servlet.ServletException: No bean found for attribute key ord > ... > > I think I have to register a bean for the Order objects, but I did not know how > to to it. > I have no idea what I have to do to get this running. > > What do you suggest? > > Regards > > Michael -- I've been trying to change the world for years, but they just won't give me the source code begin:vcard n:Tataryn;Craig tel;home:952-884-6752 tel;work:952-842-5576 x-mozilla-html:TRUE url:http://www.computer-programmer.org org:Compuware;Professional Division adr:;;3600 West 80th St. Suite 400;Bloomington;MN;55431;United States of America version:2.1 email;internet:[EMAIL PROTECTED] title:Senior Staff Analyst fn:Craig Tataryn end:vcard
RE: Using ActionErrors
I need to display an indicator for the fields that result in error and display all the errors on the top of the page. Using the error tag I can display all the errors at one location, but I am not able to figure out how to display the indicator. Any suggestions? -Original Message-From: Deadman, Hal [mailto:[EMAIL PROTECTED]]Sent: Tuesday, February 13, 2001 5:07 PMTo: [EMAIL PROTECTED]Subject: RE: Using ActionErrors I haven't tried it but I thought that you could specify the property attribute on the errors tag and it would pull out the error that has that property. When you add to the ActionErrors object the property is the first argument. You should probably use the property name that cooresponds to the property of the form field. -Original Message-From: David J Snowsill [mailto:[EMAIL PROTECTED]]Sent: Tuesday, February 13, 2001 4:31 PMTo: [EMAIL PROTECTED]Subject: Using ActionErrors Can anybody point me in the right direction on how to associate a particular error with a particular input field in a form Thanks David J SnowsillPrincipal ConsultantCalibre Financial Technology[EMAIL PROTECTED]Office: (61-2) 9212 0527Mobile: 0403 091 468 ***This E-mail is intended only for the use of the individual or entity namedabove and may contain information that is confidential and privileged. If you are not the intended recipient, you are hereby notified that anydissemination, distribution or copying of this E-mail is strictly prohibited. If you have received this E-mail in error, please notify us immediatelyby return e-mail to the sender or by telephoning one of our staff on (61-2)9212 0527. Please then destroy any copies of the original message thatare in your possession. Thank you.***
RE: Unable to start Tomcat with Struts
The following was posted by Craig yesterday and it should answer all of your classpath questions related to struts.jar. The short version is just put struts.jar in WEB-INF/lib and do not put WEB-INF/lib in your tomcat classpath. Do not put it any other location that tomcat can see. ---from craig There has been some confusion around the issue of placing "struts.jar" on your CLASSPATH at execution time, in a servlet container like Tomcat that makes all such libraries visible to web applications. This message is an attempt to clarify the issues, and document why this is prohibited. * The "struts.jar" must appear on your classpath at compile time for your web application. The easiest way to make this happen is to use an Ant "build.xml" file (like Struts itself does) that sets the classpath dynamically, or create a custom shell script that sets the classpath temporarily for compiling Struts based classes. * The "servlet.jar" file (from your servlet container) must be on your classpath at compile time as well, because your application's Action classes will refer to interfaces that are defined here. * For reasons discussed further below, "struts.jar" MUST NOT be on your system CLASSPATH when you start your servlet container (in particular, this applies to Tomcat). * Placing JAR files in $JAVA_HOME/jre/lib/ext (the system extensions directory for Java2) is the same as placing them on the classpath. In other words, you will NOT want to put "struts.jar" or "servlet.jar" there. * For Tomcat, placing JAR files in the "lib" directory (as opposed to the WEB-INF/lib directory of your web app) causes them to be added to the CLASSPATH automatically. Therefore, you should not put struts.jar here either. The reason that putting "struts.jar" on your classpath is a bad idea has to do with the way classloaders work in most servlet containers. The details differ between them -- but here is the scoop for Tomcat (3.x and 4.x): * The library files that are placed on the CLASSPATH when Tomcat starts up are made visible through the "system" class loader. * Each individual web application has a custom class loader created for it, which makes the classes in WEB-INF/classes and WEB-INF/lib visible. The "parent" class loader of this custom class loader is set to the system class loader mentioned above. * When classes are loaded, the JVM starts at the bottom of the hierarchy of class loaders, with the webapp class loader, and works its way up the hierarchy until it finds that class. Thus, if you have struts.jar in the system classpath, classes from struts.jar will be loaded by the system class loader instead of the web app class loader. * When a loaded class references other classes, it looks in its own class loader first, and then up the hierarchy. Under NO circumstances will it go down the hierarchy. * Therefore, if a Struts class is loaded from the system class path, that class CANNOT see any of your application classes in WEB-INF/classes or WEB-INF/lib -- you will get ClassNotFoundException instead. This is the reason that the Struts example application will not run when you have "struts.jar" on your CLASSPATH. The digester module of Struts is loaded from the system class path. Therefore, it cannot see the "User" class of the example app, because that class is under WEB-INF/classes. If you find that you need to put "struts.jar" on your system classpath to make Struts work in Tomcat, that means your Tomcat install has been corrupted. If you find that your own app will not work UNLESS struts.jar is in the system classpath, there is something about your application organization that needs to be analyzed in detail. Craig -Original Message- From: Anderson, Jessica [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 11:57 AM To: '[EMAIL PROTECTED]' Subject: RE: Unable to start Tomcat with Struts David, I tried having the struts.jar in both places that you mentioned and made sure the classpath reflected the location. But no change...I am still getting the same error. Should I completely remove the jar from one location if I am pointing to the other location in my classpath? Would that create problems? Still not functional. Here is another possible clue from a list member: (does this help?) "error when the database servlet starts up and tries to load user objects from the persisted data in the database.xml file. For some reason, the class loader isn't finding org.apache.struts.example.User although it is definitly in the right place." Any info is appreciated, Jessica -Original Message- From: David Maycock [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 10:39 AM To: '[EMAIL PROTECTED]' Subject: RE: Unable to start Tomcat with Struts Check where the struts.jar file is placed. I had this problem when the jar file was placed in the tomcat\lib directory rather than the tomcat\webapps\xx\web-inf\lib
Re: controlling the next page to be displayed
The way I implemented this is I define multiple forwards in the config file
such as
...
...
and in my action class, I have
if (cond1) return mapping.findForward("cond1");
else if (cond2) return mapping.findForward("cond2");
...
...
I'm interested to see how other people handle this.
Eric
>From: Ratnadeep Bhattacharjee <[EMAIL PROTECTED]>
>Reply-To: Ratnadeep Bhattacharjee <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: controlling the next page to be displayed
>Date: Wed, 14 Feb 2001 11:52:26 -0500 (EST)
>
>Hi,
>
>I am quite new to Struts and was wondering if someone could help me with
>the
>following issue:
>
>I am on a web page and I have entered some data and I click on Submit. Now,
>the
>Action class correspoding to its JSP page gets executed. I would like the
>perform() method of the Action class to determine the next page that should
>be
>displayed (based on data I had entered).
>
>If I use
> return (mapping.findForward("success"))
>
>I can go to one page only - the one that is mentioned in my
>struts-config.xml.
>
>
>
>I would like to go to one of many pages on success.
>
>
>Thanks,
>-Deep.
>
>
>
_
Get your FREE download of MSN Explorer at http://explorer.msn.com
Re: controlling the next page to be displayed
Craig M. answered this question yesterday in a mail titled: "Proper way to
'forward' dynamically"
When I need this, I just create a new ActionForward dynamically:
String path = ... create context-relative path to new page ...
return (new ActionForward(path));
The path you calculate must be context relative and start with a slash, exactly
like the "path" attributes to your standard elements.
Ratnadeep Bhattacharjee wrote:
> Hi,
>
> I am quite new to Struts and was wondering if someone could help me with the
> following issue:
>
> I am on a web page and I have entered some data and I click on Submit. Now, the
> Action class correspoding to its JSP page gets executed. I would like the
> perform() method of the Action class to determine the next page that should be
> displayed (based on data I had entered).
>
> If I use
> return (mapping.findForward("success"))
>
> I can go to one page only - the one that is mentioned in my struts-config.xml.
>
>
>
> I would like to go to one of many pages on success.
>
> Thanks,
> -Deep.
--
I've been trying to change the world for years, but they just won't give me the
source code
begin:vcard
n:Tataryn;Craig
tel;home:952-884-6752
tel;work:952-842-5576
x-mozilla-html:TRUE
url:http://www.computer-programmer.org
org:Compuware;Professional Division
adr:;;3600 West 80th St. Suite 400;Bloomington;MN;55431;United States of America
version:2.1
email;internet:[EMAIL PROTECTED]
title:Senior Staff Analyst
fn:Craig Tataryn
end:vcard
iterate / bean write problem
Hello, I'm struggling with a problem about iterate and bean write as used in the example application. I have an object OrderList which is registered as the attribute "orders". This object contains objects from the type Order (OrderList actually is an ArrayList). There is a property getter method for OrderList available which returns an array of Order objects (Order[]). It is named getOrders(). So I want Struts to browse through the list of orders and display the properties of each Order object inside the list. The portion of my JSP file looks like: But when I run the application, I get the error message: javax.servlet.ServletException: No bean found for attribute key ord ... I think I have to register a bean for the Order objects, but I did not know how to to it. I have no idea what I have to do to get this running. What do you suggest? Regards Michael
RE: Unable to start Tomcat with Struts
David, I tried having the struts.jar in both places that you mentioned and made sure the classpath reflected the location. But no change...I am still getting the same error. Should I completely remove the jar from one location if I am pointing to the other location in my classpath? Would that create problems? Still not functional. Here is another possible clue from a list member: (does this help?) "error when the database servlet starts up and tries to load user objects from the persisted data in the database.xml file. For some reason, the class loader isn't finding org.apache.struts.example.User although it is definitly in the right place." Any info is appreciated, Jessica -Original Message- From: David Maycock [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 10:39 AM To: '[EMAIL PROTECTED]' Subject: RE: Unable to start Tomcat with Struts Check where the struts.jar file is placed. I had this problem when the jar file was placed in the tomcat\lib directory rather than the tomcat\webapps\xx\web-inf\lib directory. This screws up all the dynamic class loading within tomcat. Hope this helps David -Original Message- From: Anderson, Jessica [mailto:[EMAIL PROTECTED]] Sent: 14 February 2001 16:14 To: '[EMAIL PROTECTED]' Subject: Unable to start Tomcat with Struts Hi, I am trying to install struts and am receiving the following error when attempting to start tomcat. Can anyone shed light on my situation? I've got jaxp1.0.1, and the test example for it worked properly. Thanks, Jessica Anderson Starting tomcat. Check logs/tomcat.log for error messages New org.apache.struts.example.User Begin event threw exception java.lang.ClassNotFoundException: org.apache.struts.example.User at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:120) at org.apache.struts.digester.ObjectCreateRule.begin(ObjectCreateRule.java:152) at org.apache.struts.digester.Digester.startElement(Digester.java:498) at com.sun.xml.parser.Parser.maybeElement(Parser.java:1391) at com.sun.xml.parser.Parser.content(Parser.java:1499) at com.sun.xml.parser.Parser.maybeElement(Parser.java:1400) at com.sun.xml.parser.Parser.parseInternal(Parser.java:492) at com.sun.xml.parser.Parser.parse(Parser.java:284) at javax.xml.parsers.SAXParser.parse(SAXParser.java:155) at javax.xml.parsers.SAXParser.parse(SAXParser.java:77) at org.apache.struts.digester.Digester.parse(Digester.java:716) at org.apache.struts.example.DatabaseServlet.load(DatabaseServlet.java:283) at org.apache.struts.example.DatabaseServlet.init(DatabaseServlet.java:178) at javax.servlet.GenericServlet.init(GenericServlet.java:258) at org.apache.tomcat.core.ServletWrapper.initServlet(ServletWrapper.java:315) at org.apache.tomcat.core.ServletWrapper.loadServlet(ServletWrapper.java:276) at org.apache.tomcat.context.LoadOnStartupInterceptor.contextInit(LoadOnStartup Interceptor.java:132) at org.apache.tomcat.core.ContextManager.initContext(ContextManager.java:227) at org.apache.tomcat.core.ContextManager.init(ContextManager.java:201) at org.apache.tomcat.startup.Tomcat.execute(Tomcat.java:156) at org.apache.tomcat.startup.Tomcat.main(Tomcat.java:163) Exception in thread "main" java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:486) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111) at java.net.URLClassLoader.defineClass(URLClassLoader.java:248) at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at java.lang.ClassLoader.loadClass(ClassLoader.java:290) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.findSystemClass(ClassLoader.java:620) at org.apache.tomcat.loader.AdaptiveClassLoader.loadSystemClass(AdaptiveClassLo ader.java:464) at org.apache.tomcat.loader.AdaptiveClassLoader.loadClass(AdaptiveClassLoader.j ava:401) at org.apache.tomcat.loader
Re: Please, help with strange exception
The current version of the docs: http://jakarta.apache.org/struts/userGuide/building_view.html#forms doesn't seem to have the problem. Are you using an old version of the documents? Craig. Michael Grushko wrote: Thank you Craig. It is work now. Strange ... I took this name of attribute from documentation (3.3.1. - example) -Original Message- From: Craig Tataryn [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 7:11 PM To: [EMAIL PROTECTED] Subject: Re: Please, help with strange exception As suspected, replace: name="username" size="10"/> with property="username" size="10"/> The name attribute is to be used to specify the name of the bean the property attribute applies to. In this case, you don't have to specify a bean name because it is within a which will default the name attribute to the formBean setup for the current controller. Hope that helps, Craig. -- I've been trying to change the world for years, but they just won't give me the source code begin:vcard n:Tataryn;Craig tel;home:952-884-6752 tel;work:952-842-5576 x-mozilla-html:TRUE url:http://www.computer-programmer.org org:Compuware;Professional Division adr:;;3600 West 80th St. Suite 400;Bloomington;MN;55431;United States of America version:2.1 email;internet:[EMAIL PROTECTED] title:Senior Staff Analyst fn:Craig Tataryn end:vcard
controlling the next page to be displayed
Hi,
I am quite new to Struts and was wondering if someone could help me with the
following issue:
I am on a web page and I have entered some data and I click on Submit. Now, the
Action class correspoding to its JSP page gets executed. I would like the
perform() method of the Action class to determine the next page that should be
displayed (based on data I had entered).
If I use
return (mapping.findForward("success"))
I can go to one page only - the one that is mentioned in my struts-config.xml.
I would like to go to one of many pages on success.
Thanks,
-Deep.
RE: Avoid JSP caching by the browser
Hi, You can try: Regards, Benjamin. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] g]On Behalf Of Lind Jürgen Sent: Wednesday, February 14, 2001 6:56 AM To: [EMAIL PROTECTED] Subject: AW: Avoid JSP caching by the browser > -Ursprungliche Nachricht- > Von: Lind Jurgen [SMTP:[EMAIL PROTECTED]] > Gesendet am: Mittwoch, 14. Februar 2001 11:18 > An: [EMAIL PROTECTED] > Betreff: Avoid JSP caching by the browser > > Hi there, > > I have the following problem: in order to prevent the web-browser > from using cached versions of a jsp, we plan to add some unique > timestamp (which will actually be ignored by the jsp) to the url > that calls the jsp, e.g.: > > myjsp > > While this works fine when cookies are enabled, it fails when > cookies are disabled because it does not make use of the URL > rewriting capabilities of the Struts taglib. > > Using the html:link tag, however, introduces the difficulty how to > dynamically add the timestamp. Using something like > > myjsp > > fails as the Java Code will not get interpreted but it will > be literally > appended to the URL, causing a Decode Error in the receiving JSP. > > Has anyone experienced similar problems (with the web browser caching > jsp pages) and could offer some help or are there any > suggestions wrt. > the above evaluation problem? > > [] Hi, > > i have not tried all the attributes of the tag "link" in > struts-html.tld. But a simple workaround > could be > myjsp > (or not?) > > Dimitris > no, because then I run into the same problem as before as soon as cookies are disabled.. regards Jürgen
RE: Please, help with strange exception
Thank you Craig. It is work now. Strange ... I took this name of attribute from documentation (3.3.1. - example) -Original Message-From: Craig Tataryn [mailto:[EMAIL PROTECTED]]Sent: Wednesday, February 14, 2001 7:11 PMTo: [EMAIL PROTECTED]Subject: Re: Please, help with strange exceptionAs suspected, replace: name="username" size="10"/> with property="username" size="10"/> The name attribute is to be used to specify the name of the bean the property attribute applies to. In this case, you don't have to specify a bean name because it is within a which will default the name attribute to the formBean setup for the current controller. Hope that helps, Craig.
Re: Unable to start Tomcat with Struts
Jessica, There were a lot of errors posted to this email list with similar error messages. Check where struts.jar is located in your computer and if you added its any location to CLASSPATH. Maya "Anderson, Jessica" wrote: > Hi, > I am trying to install struts and am receiving the following error when > attempting to start tomcat. Can anyone shed light on my situation? I've > got jaxp1.0.1, and the test example for it worked properly. > > Thanks, > Jessica Anderson > > Starting tomcat. Check logs/tomcat.log for error messages > New org.apache.struts.example.User > Begin event threw exception > java.lang.ClassNotFoundException: org.apache.struts.example.User > at java.net.URLClassLoader$1.run(URLClassLoader.java:200) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > at java.lang.ClassLoader.loadClass(ClassLoader.java:297) > at java.lang.ClassLoader.loadClass(ClassLoader.java:253) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:120) > at > org.apache.struts.digester.ObjectCreateRule.begin(ObjectCreateRule.java:152) > at > org.apache.struts.digester.Digester.startElement(Digester.java:498) > at com.sun.xml.parser.Parser.maybeElement(Parser.java:1391) > at com.sun.xml.parser.Parser.content(Parser.java:1499) > at com.sun.xml.parser.Parser.maybeElement(Parser.java:1400) > at com.sun.xml.parser.Parser.parseInternal(Parser.java:492) > at com.sun.xml.parser.Parser.parse(Parser.java:284) > at javax.xml.parsers.SAXParser.parse(SAXParser.java:155) > at javax.xml.parsers.SAXParser.parse(SAXParser.java:77) > at org.apache.struts.digester.Digester.parse(Digester.java:716) > at > org.apache.struts.example.DatabaseServlet.load(DatabaseServlet.java:283) > at > org.apache.struts.example.DatabaseServlet.init(DatabaseServlet.java:178) > at javax.servlet.GenericServlet.init(GenericServlet.java:258) > at > org.apache.tomcat.core.ServletWrapper.initServlet(ServletWrapper.java:315) > at > org.apache.tomcat.core.ServletWrapper.loadServlet(ServletWrapper.java:276) > at > org.apache.tomcat.context.LoadOnStartupInterceptor.contextInit(LoadOnStartup > Interceptor.java:132) > at > org.apache.tomcat.core.ContextManager.initContext(ContextManager.java:227) > at > org.apache.tomcat.core.ContextManager.init(ContextManager.java:201) > at org.apache.tomcat.startup.Tomcat.execute(Tomcat.java:156) > at org.apache.tomcat.startup.Tomcat.main(Tomcat.java:163) > Exception in thread "main" java.lang.NoClassDefFoundError: > javax/servlet/http/HttpServlet > at java.lang.ClassLoader.defineClass0(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:486) > at > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111) > at java.net.URLClassLoader.defineClass(URLClassLoader.java:248) > at java.net.URLClassLoader.access$100(URLClassLoader.java:56) > at java.net.URLClassLoader$1.run(URLClassLoader.java:195) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > at java.lang.ClassLoader.loadClass(ClassLoader.java:297) > at java.lang.ClassLoader.loadClass(ClassLoader.java:290) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286) > at java.lang.ClassLoader.loadClass(ClassLoader.java:253) > at java.lang.ClassLoader.findSystemClass(ClassLoader.java:620) > at > org.apache.tomcat.loader.AdaptiveClassLoader.loadSystemClass(AdaptiveClassLo > ader.java:464) > at > org.apache.tomcat.loader.AdaptiveClassLoader.loadClass(AdaptiveClassLoader.j > ava:401) > at > org.apache.tomcat.loader.AdaptiveServletLoader.loadClass(AdaptiveServletLoad > er.java:141) > at > org.apache.tomcat.core.ServletWrapper.initServlet(ServletWrapper.java:294) > at > org.apache.tomcat.core.ServletWrapper.loadServlet(ServletWrapper.java:276) > at > org.apache.tomcat.context.LoadOnStartupInterceptor.contextInit(LoadOnStartup > Interceptor.java:132) > at > org.apache.tomcat.core.ContextManager.initContext(ContextManager.java:227) > at > org.apache.tomcat.core.ContextManager.init(ContextManager.java:201) > at org.apache.tomcat.startup.Tomcat.execute(Tomcat.java:156) > at org.apache.tomcat.startup.Tomcat.main(Tomcat.java:163) > > Also, getting this error in tomcat servlet log: > Context log path="/struts-example" :tomcat.errorPage: init > Context log path="/struts-example" :jsp: init > Context log path="/struts-example" :default: init > Context log path="/struts-example" :database: init > Context lo
RE: Unable to start Tomcat with Struts
Check where the struts.jar file is placed. I had this problem when the jar file was placed in the tomcat\lib directory rather than the tomcat\webapps\xx\web-inf\lib directory. This screws up all the dynamic class loading within tomcat. Hope this helps David -Original Message- From: Anderson, Jessica [mailto:[EMAIL PROTECTED]] Sent: 14 February 2001 16:14 To: '[EMAIL PROTECTED]' Subject: Unable to start Tomcat with Struts Hi, I am trying to install struts and am receiving the following error when attempting to start tomcat. Can anyone shed light on my situation? I've got jaxp1.0.1, and the test example for it worked properly. Thanks, Jessica Anderson Starting tomcat. Check logs/tomcat.log for error messages New org.apache.struts.example.User Begin event threw exception java.lang.ClassNotFoundException: org.apache.struts.example.User at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:120) at org.apache.struts.digester.ObjectCreateRule.begin(ObjectCreateRule.java:152) at org.apache.struts.digester.Digester.startElement(Digester.java:498) at com.sun.xml.parser.Parser.maybeElement(Parser.java:1391) at com.sun.xml.parser.Parser.content(Parser.java:1499) at com.sun.xml.parser.Parser.maybeElement(Parser.java:1400) at com.sun.xml.parser.Parser.parseInternal(Parser.java:492) at com.sun.xml.parser.Parser.parse(Parser.java:284) at javax.xml.parsers.SAXParser.parse(SAXParser.java:155) at javax.xml.parsers.SAXParser.parse(SAXParser.java:77) at org.apache.struts.digester.Digester.parse(Digester.java:716) at org.apache.struts.example.DatabaseServlet.load(DatabaseServlet.java:283) at org.apache.struts.example.DatabaseServlet.init(DatabaseServlet.java:178) at javax.servlet.GenericServlet.init(GenericServlet.java:258) at org.apache.tomcat.core.ServletWrapper.initServlet(ServletWrapper.java:315) at org.apache.tomcat.core.ServletWrapper.loadServlet(ServletWrapper.java:276) at org.apache.tomcat.context.LoadOnStartupInterceptor.contextInit(LoadOnStartup Interceptor.java:132) at org.apache.tomcat.core.ContextManager.initContext(ContextManager.java:227) at org.apache.tomcat.core.ContextManager.init(ContextManager.java:201) at org.apache.tomcat.startup.Tomcat.execute(Tomcat.java:156) at org.apache.tomcat.startup.Tomcat.main(Tomcat.java:163) Exception in thread "main" java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:486) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111) at java.net.URLClassLoader.defineClass(URLClassLoader.java:248) at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at java.lang.ClassLoader.loadClass(ClassLoader.java:290) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.findSystemClass(ClassLoader.java:620) at org.apache.tomcat.loader.AdaptiveClassLoader.loadSystemClass(AdaptiveClassLo ader.java:464) at org.apache.tomcat.loader.AdaptiveClassLoader.loadClass(AdaptiveClassLoader.j ava:401) at org.apache.tomcat.loader.AdaptiveServletLoader.loadClass(AdaptiveServletLoad er.java:141) at org.apache.tomcat.core.ServletWrapper.initServlet(ServletWrapper.java:294) at org.apache.tomcat.core.ServletWrapper.loadServlet(ServletWrapper.java:276) at org.apache.tomcat.context.LoadOnStartupInterceptor.contextInit(LoadOnStartup Interceptor.java:132) at org.apache.tomcat.core.ContextManager.initContext(ContextManager.java:227) at org.apache.tomcat.core.ContextManager.init(ContextManager.java:201) at org.apache.tomcat.startup.Tomcat.execute(Tomcat.java:156) at org.apache.tomcat.startup.Tomcat.main(Tomcat.java:163) Also, getting this error in tomcat servlet log: Context log path="/struts-example" :tomcat.errorPage: init Context log path="/struts-example" :jsp: init Context log path="/struts-example" :default: init Context log path="/struts-exam
Re: ActionForm property naming convention problem
I think it's a problem with having the first letter of your property as a small letter, I don't think it matters that the second letter is capitalized. Try it out and see. FYI: Found this somewhere a while back: === A PropertyDescriptor indicates not only the property, but also the property accessor methods (setter and getter methods). As described above, when analyzing a bean, the Introspector first checks to see if it can get a list of PropertyDescriptors from the BeanInfo. If that fails, the Introspector analyzes the bean class, building a list of methods that match the signatures Type getProperty() and void setProperty(Type value). From this list of methods, the Introspector then creates its own PropertyDescriptor list. === And then this from the bean 1.01 spec: 8.8 Capitalization of inferred names. When we use design patterns to infer a property or event name, we need to decide what rules to follow for capitalizing the inferred name. If we extract the name from the middle of a normal mixedCase style Java name then the name will, by default, begin with a capital letter. Java programmers are accustomed to having normal identifiers start with lower case letters. Vigorous reviewer input has convinced us that we should follow this same conventional rule for property and event names. Thus when we extract a property or event name from the middle of an existing Java name, we normally convert the first character to lower case. However to support the occasional use of all upper-case names, we check if the first two characters of the name are both upper case and if so leave it alone. So for example, FooBah becomes fooBah Z becomes z URL becomes URL We provide a method Introspector.decapitalize which implements this conversion rule. Craig. [EMAIL PROTECTED] wrote: Yes, you described the scenario perfectly, and much better than I did :) This is how I understand the process as well. Using your same example, Struts will not allow that tag and subsequently will not process the expected method named getNTerminal(). Instead a runtime error will occur while processing the tag (this is all the information I get from the WebLogic Servlet container). For things to work, I have to rename the property as "nterminal" in the bean and update the tag as well to . There is a problem with having a capital letter in the 2nd position of the property name.Bob -Original Message- From: Craig Tataryn [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 10:28 AM To: [EMAIL PROTECTED] Subject: Re: ActionForm property naming conventions Basically (and I might be wrong) when you subsequently try access the property, let's say with an tag, Struts will do a getNTerminal() on your ActionForm. The default is to take the property and do the following: 1) append a "get" prefix to the property 2) change the first letter of the property to uppercase 3) call that method on the form bean. So for instance, it's prefixing your nTerminal property and mangaling it like so: getNTerminal() Like I said, I haven't looked at the code, but this is how I understand the process. Craig. [EMAIL PROTECTED] wrote: My question is best asked with an example... Why is it that I am unable to create a property named "nTerminal" for my ActionForm/JSP? This problem occurs when there is an uppercase letter in the 2nd position of the property name. If I change the name to "nterminal" or "ntErminal" then things work just fine. In other words- getNterminal() is recognized by Struts, but getNTerminal() is invalid and results in a runtime error in the html tag. Is this a limitation imposed by Javabean conventions or is this a Struts specific issue? (If you think I am crazy, then perhaps this problem is specific to WebLogic.) Thanks, Bob -- I've been trying to change the world for years, but they just won't give me the source code -- I've been trying to change the world for years, but they just won't give me the source code begin:vcard n:Tataryn;Craig tel;home:952-884-6752 tel;work:952-842-5576 x-mozilla-html:TRUE url:http://www.computer-programmer.org org:Compuware;Professional Division adr:;;3600 West 80th St. Suite 400;Bloomington;MN;55431;United States of America version:2.1 email;internet:[EMAIL PROTECTED] title:Senior Staff Analyst fn:Craig Tataryn end:vcard
Unable to start Tomcat with Struts
Hi, I am trying to install struts and am receiving the following error when attempting to start tomcat. Can anyone shed light on my situation? I've got jaxp1.0.1, and the test example for it worked properly. Thanks, Jessica Anderson Starting tomcat. Check logs/tomcat.log for error messages New org.apache.struts.example.User Begin event threw exception java.lang.ClassNotFoundException: org.apache.struts.example.User at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:120) at org.apache.struts.digester.ObjectCreateRule.begin(ObjectCreateRule.java:152) at org.apache.struts.digester.Digester.startElement(Digester.java:498) at com.sun.xml.parser.Parser.maybeElement(Parser.java:1391) at com.sun.xml.parser.Parser.content(Parser.java:1499) at com.sun.xml.parser.Parser.maybeElement(Parser.java:1400) at com.sun.xml.parser.Parser.parseInternal(Parser.java:492) at com.sun.xml.parser.Parser.parse(Parser.java:284) at javax.xml.parsers.SAXParser.parse(SAXParser.java:155) at javax.xml.parsers.SAXParser.parse(SAXParser.java:77) at org.apache.struts.digester.Digester.parse(Digester.java:716) at org.apache.struts.example.DatabaseServlet.load(DatabaseServlet.java:283) at org.apache.struts.example.DatabaseServlet.init(DatabaseServlet.java:178) at javax.servlet.GenericServlet.init(GenericServlet.java:258) at org.apache.tomcat.core.ServletWrapper.initServlet(ServletWrapper.java:315) at org.apache.tomcat.core.ServletWrapper.loadServlet(ServletWrapper.java:276) at org.apache.tomcat.context.LoadOnStartupInterceptor.contextInit(LoadOnStartup Interceptor.java:132) at org.apache.tomcat.core.ContextManager.initContext(ContextManager.java:227) at org.apache.tomcat.core.ContextManager.init(ContextManager.java:201) at org.apache.tomcat.startup.Tomcat.execute(Tomcat.java:156) at org.apache.tomcat.startup.Tomcat.main(Tomcat.java:163) Exception in thread "main" java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:486) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111) at java.net.URLClassLoader.defineClass(URLClassLoader.java:248) at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at java.lang.ClassLoader.loadClass(ClassLoader.java:290) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.findSystemClass(ClassLoader.java:620) at org.apache.tomcat.loader.AdaptiveClassLoader.loadSystemClass(AdaptiveClassLo ader.java:464) at org.apache.tomcat.loader.AdaptiveClassLoader.loadClass(AdaptiveClassLoader.j ava:401) at org.apache.tomcat.loader.AdaptiveServletLoader.loadClass(AdaptiveServletLoad er.java:141) at org.apache.tomcat.core.ServletWrapper.initServlet(ServletWrapper.java:294) at org.apache.tomcat.core.ServletWrapper.loadServlet(ServletWrapper.java:276) at org.apache.tomcat.context.LoadOnStartupInterceptor.contextInit(LoadOnStartup Interceptor.java:132) at org.apache.tomcat.core.ContextManager.initContext(ContextManager.java:227) at org.apache.tomcat.core.ContextManager.init(ContextManager.java:201) at org.apache.tomcat.startup.Tomcat.execute(Tomcat.java:156) at org.apache.tomcat.startup.Tomcat.main(Tomcat.java:163) Also, getting this error in tomcat servlet log: Context log path="/struts-example" :tomcat.errorPage: init Context log path="/struts-example" :jsp: init Context log path="/struts-example" :default: init Context log path="/struts-example" :database: init Context log path="/struts-example" :database: Initializing database servlet Context log path="/struts-example" :database: Loading database from '/WEB-INF/database.xml' Context log path="/struts-example" :database: Database load exception
Re: Please, help with strange exception
As suspected, replace: name="username" size="10"/> with property="username" size="10"/> The name attribute is to be used to specify the name of the bean the property attribute applies to. In this case, you don't have to specify a bean name because it is within a which will default the name attribute to the formBean setup for the current controller. Hope that helps, Craig. Michael Grushko wrote: Hello Craig! Thanx for answer. Here my file indexNew.jsp Michael. -Original Message- From: Craig Tataryn [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 6:22 PM To: [EMAIL PROTECTED] Subject: Re: Please, help with strange exception Looks to me like you are using an tag (or in your case , because it appears that your Taglib prefix is "struts") somewhere in your form and forgetting to have a "property" attribute present. Can you send us indexNew.jsp so we can see? Craig. Michael Grushko wrote: > Hello everubody! > > I have in my test file string like this: > #22: > type="rss.simple.LogonForm"> > > and I get this exception (I have empty string number 23): > org.apache.jasper.compiler.CompileException: > E:\java\tomcat\webapps\simple\indexNew.jsp(23,1) According to the TLD > attribute property is mandatory for tag text > at > org.apache.jasper.compiler.TagBeginGenerator.validate(TagBeginGenerator.java > :149) > at > org.apache.jasper.compiler.TagBeginGenerator.init(TagBeginGenerator.java:119 > ) > at > org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.init(JspPa > rseEventListener.java:761) > at > org.apache.jasper.compiler.JspParseEventListener.addGenerator(JspParseEventL > istener.java:138) > at > org.apache.jasper.compiler.JspParseEventListener.handleTagBegin(JspParseEven > tListener.java:911) > at > org.apache.jasper.compiler.DelegatingListener.handleTagBegin(DelegatingListe > ner.java:194) > at org.apache.jasper.compiler.Parser$Tag.accept(Parser.java:813) > ... > > Help! What I do wrong? > > Michael Grushko. -- I've been trying to change the world for years, but they just won't give me the source code Name: indexNew.jsp indexNew.jsp Type: unspecified type (application/octet-stream) Encoding: quoted-printable -- I've been trying to change the world for years, but they just won't give me the source code begin:vcard n:Tataryn;Craig tel;home:952-884-6752 tel;work:952-842-5576 x-mozilla-html:TRUE url:http://www.computer-programmer.org org:Compuware;Professional Division adr:;;3600 West 80th St. Suite 400;Bloomington;MN;55431;United States of America version:2.1 email;internet:[EMAIL PROTECTED] title:Senior Staff Analyst fn:Craig Tataryn end:vcard
RE: ActionForm property naming convention problem
Yes, you described the scenario perfectly, and much better than I did :) This is how I understand the process as well. Using your same example, Struts will not allow that tag and subsequently will not process the expected method named getNTerminal(). Instead a runtime error will occur while processing the tag (this is all the information I get from the WebLogic Servlet container). For things to work, I have to rename the property as "nterminal" in the bean and update the tag as well to . There is a problem with having a capital letter in the 2nd position of the property name. Bob -Original Message-From: Craig Tataryn [mailto:[EMAIL PROTECTED]]Sent: Wednesday, February 14, 2001 10:28 AMTo: [EMAIL PROTECTED]Subject: Re: ActionForm property naming conventionsBasically (and I might be wrong) when you subsequently try access the property, let's say with an tag, Struts will do a getNTerminal() on your ActionForm. The default is to take the property and do the following: 1) append a "get" prefix to the property 2) change the first letter of the property to uppercase 3) call that method on the form bean. So for instance, it's prefixing your nTerminal property and mangaling it like so: getNTerminal() Like I said, I haven't looked at the code, but this is how I understand the process. Craig. [EMAIL PROTECTED] wrote: My question is best asked with an example... Why is it that I am unable to create a property named "nTerminal" for my ActionForm/JSP? This problem occurs when there is an uppercase letter in the 2nd position of the property name. If I change the name to "nterminal" or "ntErminal" then things work just fine. In other words- getNterminal() is recognized by Struts, but getNTerminal() is invalid and results in a runtime error in the html tag. Is this a limitation imposed by Javabean conventions or is this a Struts specific issue? (If you think I am crazy, then perhaps this problem is specific to WebLogic.) Thanks, Bob -- I've been trying to change the world for years, but they just won't give me the source code
RE: Please, help with strange exception
Hello Craig! Thanx for answer. Here my file indexNew.jsp Michael. -Original Message- From: Craig Tataryn [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 6:22 PM To: [EMAIL PROTECTED] Subject: Re: Please, help with strange exception Looks to me like you are using an tag (or in your case , because it appears that your Taglib prefix is "struts") somewhere in your form and forgetting to have a "property" attribute present. Can you send us indexNew.jsp so we can see? Craig. Michael Grushko wrote: > Hello everubody! > > I have in my test file string like this: > #22: type="rss.simple.LogonForm"> > > and I get this exception (I have empty string number 23): > org.apache.jasper.compiler.CompileException: > E:\java\tomcat\webapps\simple\indexNew.jsp(23,1) According to the TLD > attribute property is mandatory for tag text > at > org.apache.jasper.compiler.TagBeginGenerator.validate(TagBeginGenerator.java > :149) > at > org.apache.jasper.compiler.TagBeginGenerator.init(TagBeginGenerator.java:119 > ) > at > org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.init(JspPa > rseEventListener.java:761) > at > org.apache.jasper.compiler.JspParseEventListener.addGenerator(JspParseEventL > istener.java:138) > at > org.apache.jasper.compiler.JspParseEventListener.handleTagBegin(JspParseEven > tListener.java:911) > at > org.apache.jasper.compiler.DelegatingListener.handleTagBegin(DelegatingListe > ner.java:194) > at org.apache.jasper.compiler.Parser$Tag.accept(Parser.java:813) > ... > > Help! What I do wrong? > > Michael Grushko. -- I've been trying to change the world for years, but they just won't give me the source code indexNew.jsp
Re: As promised (Struts Presentation)
Craig T., Thank you very much for your response. And I have got the answer for my 2nd Q. from Oleg. Maya Craig Tataryn wrote: Maya, 1) The language should change from the default after the user changes his/her browser language if: the user does a refresh in his browser (or perhaps just clicks a link to another part of the app) the language they have choosen is supported by the web app When you specify the Resource file in the application init param it simply specifies a default Resources class. After that, if the locale changes it tries to append the ISO language characters to the end of the class name to see if it can find a supporting Resource file. 2) Not sure I understand the second question :( Craig T. Maya Muchnik wrote: The same error is on pages 29 - 31. After reading your document, I have two questions: 1/ Is it possible to change a language on-line. For example one user uses English language with his browser, then he switchs to French. Can Struts handle this? I think, in your document the properties file is loaded in the beginning ActionServlet startup. 2/ How replace images with a text through properties file? (I think this question was posted already). Maya Maya Muchnik wrote: > Craig, > You have an error on page 28: not i8n, but i18n. I have got the explanations on > it. > Maya > > > > > > > > > > The Struts presentation I did can be found (at least for the time being) > > > > at: > > > > http://www.us-eh.com/craiger/articles/struts/ > > > > -- I've been trying to change the world for years, but they just won't give me the source code
Re: ActionForm property naming conventions
Basically (and I might be wrong) when you subsequently try access the property, let's say with an tag, Struts will do a getNTerminal() on your ActionForm. The default is to take the property and do the following: 1) append a "get" prefix to the property 2) change the first letter of the property to uppercase 3) call that method on the form bean. So for instance, it's prefixing your nTerminal property and mangaling it like so: getNTerminal() Like I said, I haven't looked at the code, but this is how I understand the process. Craig. [EMAIL PROTECTED] wrote: My question is best asked with an example... Why is it that I am unable to create a property named "nTerminal" for my ActionForm/JSP? This problem occurs when there is an uppercase letter in the 2nd position of the property name. If I change the name to "nterminal" or "ntErminal" then things work just fine. In other words- getNterminal() is recognized by Struts, but getNTerminal() is invalid and results in a runtime error in the html tag. Is this a limitation imposed by Javabean conventions or is this a Struts specific issue? (If you think I am crazy, then perhaps this problem is specific to WebLogic.) Thanks, Bob -- I've been trying to change the world for years, but they just won't give me the source code begin:vcard n:Tataryn;Craig tel;home:952-884-6752 tel;work:952-842-5576 x-mozilla-html:TRUE url:http://www.computer-programmer.org org:Compuware;Professional Division adr:;;3600 West 80th St. Suite 400;Bloomington;MN;55431;United States of America version:2.1 email;internet:[EMAIL PROTECTED] title:Senior Staff Analyst fn:Craig Tataryn end:vcard
Re: Please, help with strange exception
Looks to me like you are using an tag (or in your case , because it appears that your Taglib prefix is "struts") somewhere in your form and forgetting to have a "property" attribute present. Can you send us indexNew.jsp so we can see? Craig. Michael Grushko wrote: > Hello everubody! > > I have in my test file string like this: > #22: type="rss.simple.LogonForm"> > > and I get this exception (I have empty string number 23): > org.apache.jasper.compiler.CompileException: > E:\java\tomcat\webapps\simple\indexNew.jsp(23,1) According to the TLD > attribute property is mandatory for tag text > at > org.apache.jasper.compiler.TagBeginGenerator.validate(TagBeginGenerator.java > :149) > at > org.apache.jasper.compiler.TagBeginGenerator.init(TagBeginGenerator.java:119 > ) > at > org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.init(JspPa > rseEventListener.java:761) > at > org.apache.jasper.compiler.JspParseEventListener.addGenerator(JspParseEventL > istener.java:138) > at > org.apache.jasper.compiler.JspParseEventListener.handleTagBegin(JspParseEven > tListener.java:911) > at > org.apache.jasper.compiler.DelegatingListener.handleTagBegin(DelegatingListe > ner.java:194) > at org.apache.jasper.compiler.Parser$Tag.accept(Parser.java:813) > ... > > Help! What I do wrong? > > Michael Grushko. -- I've been trying to change the world for years, but they just won't give me the source code begin:vcard n:Tataryn;Craig tel;home:952-884-6752 tel;work:952-842-5576 x-mozilla-html:TRUE url:http://www.computer-programmer.org org:Compuware;Professional Division adr:;;3600 West 80th St. Suite 400;Bloomington;MN;55431;United States of America version:2.1 email;internet:[EMAIL PROTECTED] title:Senior Staff Analyst fn:Craig Tataryn end:vcard
ActionForm property naming conventions
My question is best asked with an example... Why is it that I am unable to create a property named "nTerminal" for my ActionForm/JSP? This problem occurs when there is an uppercase letter in the 2nd position of the property name. If I change the name to "nterminal" or "ntErminal" then things work just fine. In other words- getNterminal() is recognized by Struts, but getNTerminal() is invalid and results in a runtime error in the html tag. Is this a limitation imposed by Javabean conventions or is this a Struts specific issue? (If you think I am crazy, then perhaps this problem is specific to WebLogic.) Thanks, Bob
Please, help with strange exception
Hello everubody! I have in my test file string like this: #22: and I get this exception (I have empty string number 23): org.apache.jasper.compiler.CompileException: E:\java\tomcat\webapps\simple\indexNew.jsp(23,1) According to the TLD attribute property is mandatory for tag text at org.apache.jasper.compiler.TagBeginGenerator.validate(TagBeginGenerator.java :149) at org.apache.jasper.compiler.TagBeginGenerator.init(TagBeginGenerator.java:119 ) at org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.init(JspPa rseEventListener.java:761) at org.apache.jasper.compiler.JspParseEventListener.addGenerator(JspParseEventL istener.java:138) at org.apache.jasper.compiler.JspParseEventListener.handleTagBegin(JspParseEven tListener.java:911) at org.apache.jasper.compiler.DelegatingListener.handleTagBegin(DelegatingListe ner.java:194) at org.apache.jasper.compiler.Parser$Tag.accept(Parser.java:813) ... Help! What I do wrong? Michael Grushko.
Re: Emacs and JSP
>Well, I'm happy enough with Emacs in general, but I've not yet managed to >get a nice JSP editing mode going. I've tried without success to get the >multi-mode thing going, are there any other suggestions (I develop on Linux >- the Java based editors are still a bit slow for me on Linux)? Have you tried the html-helper-mode ? It comes with JSP (and ASP, PHP). Especially the latest release had some problems that weren't there in older versions but such is life in the free world. The URL is http://www.gest.unipd.it/~saint/hth.html HTH, Michael -- Vote against SPAM - see http://www.politik-digital.de/spam/ Michael Gerdau email: [EMAIL PROTECTED] People who live in glass houses, don't need WINDOWS! PGP-keys available on request or at public keyserver
AW: ReRe: If property !=null tag?
Title: If property !=null tag? Me either ... -Ursprüngliche Nachricht-Von: "Gössel, Stefan" [mailto:[EMAIL PROTECTED]]Gesendet am: Mittwoch, 14. Februar 2001 15:49An: '[EMAIL PROTECTED]'Betreff: ReRe: If property !=null tag? Hi, I use the logic:present and the logic:notPresent tag in Struts 0.5 and it works fine now. -Ursprüngliche Nachricht-Von: Chris Evans [mailto:[EMAIL PROTECTED]]Gesendet am: Mittwoch, 14. Februar 2001 14:17An: [EMAIL PROTECTED]Betreff: Re: If property !=null tag? Hi, I used the tag like this: property="orderLI" value="" > It seems to work fine. The property orderLI is an array which if there is no value in it returns null to the JSP. I don't think this tag is documented for some reason. I'm using struts version 0.5. If there is a better way I'd like to hear about it! Chris Evans Canlink Interactive Technologies - Original Message - From: Gössel, Stefan To: '[EMAIL PROTECTED]' Sent: Wednesday, February 14, 2001 6:30 AM Subject: If property !=null tag? Hi, i want a part of my JSP code to be ignored, if a property in my Actionbean is null. Any idea for this in struts without too much JSP code ? Thanks in advance, Stefan
ReRe: If property !=null tag?
Title: If property !=null tag? Hi, I use the logic:present and the logic:notPresent tag in Struts 0.5 and it works fine now. -Ursprüngliche Nachricht-Von: Chris Evans [mailto:[EMAIL PROTECTED]]Gesendet am: Mittwoch, 14. Februar 2001 14:17An: [EMAIL PROTECTED]Betreff: Re: If property !=null tag? Hi, I used the tag like this: property="orderLI" value="" > It seems to work fine. The property orderLI is an array which if there is no value in it returns null to the JSP. I don't think this tag is documented for some reason. I'm using struts version 0.5. If there is a better way I'd like to hear about it! Chris Evans Canlink Interactive Technologies - Original Message - From: Gössel, Stefan To: '[EMAIL PROTECTED]' Sent: Wednesday, February 14, 2001 6:30 AM Subject: If property !=null tag? Hi, i want a part of my JSP code to be ignored, if a property in my Actionbean is null. Any idea for this in struts without too much JSP code ? Thanks in advance, Stefan
Re: Components tutorial problem
Maya Muchnik wrote: > Victor, > > Could you, please, email where the Components tutorial is. Components tutorial try to explain basic about Components. It can be found on Component web site : (main) http://www.lifl.fr/~dumoulin/components (mirror) http://www.geocities.com/cedricdumoulin/components Components can be seen as extended Template. Cedric
Re: As promised (Struts Presentation)
Maya, 1) The language should change from the default after the user changes his/her browser language if: the user does a refresh in his browser (or perhaps just clicks a link to another part of the app) the language they have choosen is supported by the web app When you specify the Resource file in the application init param it simply specifies a default Resources class. After that, if the locale changes it tries to append the ISO language characters to the end of the class name to see if it can find a supporting Resource file. 2) Not sure I understand the second question :( Craig T. Maya Muchnik wrote: The same error is on pages 29 - 31. After reading your document, I have two questions: 1/ Is it possible to change a language on-line. For example one user uses English language with his browser, then he switchs to French. Can Struts handle this? I think, in your document the properties file is loaded in the beginning ActionServlet startup. 2/ How replace images with a text through properties file? (I think this question was posted already). Maya Maya Muchnik wrote: > Craig, > You have an error on page 28: not i8n, but i18n. I have got the explanations on > it. > Maya > > > > > > > > > > The Struts presentation I did can be found (at least for the time being) > > > > at: > > > > http://www.us-eh.com/craiger/articles/struts/ > > > > -- I've been trying to change the world for years, but they just won't give me the source code begin:vcard n:Tataryn;Craig tel;home:952-884-6752 tel;work:952-842-5576 x-mozilla-html:TRUE url:http://www.computer-programmer.org org:Compuware;Professional Division adr:;;3600 West 80th St. Suite 400;Bloomington;MN;55431;United States of America version:2.1 email;internet:[EMAIL PROTECTED] title:Senior Staff Analyst fn:Craig Tataryn end:vcard
Re: As promised (Struts Presentation)
Check. Updated i8n to i18n. Thanks, Craig. Maya Muchnik wrote: > Craig, > You have an error on page 28: not i8n, but i18n. I have got the explanations on > it. > Maya > > Craig Tataryn wrote: > > > Ar, Dark Angel > > > > Ted, I'll cut the "only" word out of there tonight after I watch the > > aforementioned program. But as far as I know, ActionForm is the only Model > > type class that Struts really manages for you auto-magically. > > > > Craig. > > > > Ted Husted wrote: > > > > > Kewl! > > > > > > I think I know what I'll be doning after Dark Angel tonight! > > > > > > I did notice one point on page 17, where it says "Struts will only > > > handle models in an automatic fashion if you extended > > > org.apache.struts.action.ActionForm" > > > > > > Is the word "only" accurate? > > > > > > I believe Struts works best if the form beans are ActionForm subclasses, > > > but I think the form and action would work just fine with any JavaBean. > > > > > > -Ted. > > > > > > Craig Tataryn wrote: > > > > > > > > > > > > Craig M.: Can you add the link to the presentation (if you deem it > > > > suitable) to the resources section of the Struts User Guide? > > > > > > > > > > > > URL forwarding sucks. Given that, I will have to give you the link to > > > > the presentation as it exists on the server space I am borrowing until I > > > > get my own server box. The URL may change in the future to my > > > > computer-programmer.org domain. > > > > > > > > The Struts presentation I did can be found (at least for the time being) > > > > at: > > > > http://www.us-eh.com/craiger/articles/struts/ > > > > > > > > Let me know of any problems or suggestions you may have about the > > > > presentation! > > > > > > > > Thanks, > > > > > > > > Craig. > > > > > > > > -- > > > > I've been trying to change the world for years, but they just won't give > > > > me the source code > > > > -- > > I've been trying to change the world for years, but they just won't give me > > the source code -- I've been trying to change the world for years, but they just won't give me the source code begin:vcard n:Tataryn;Craig tel;home:952-884-6752 tel;work:952-842-5576 x-mozilla-html:TRUE url:http://www.computer-programmer.org org:Compuware;Professional Division adr:;;3600 West 80th St. Suite 400;Bloomington;MN;55431;United States of America version:2.1 email;internet:[EMAIL PROTECTED] title:Senior Staff Analyst fn:Craig Tataryn end:vcard
Re: Components tutorial problem
See intermixing. Cedric "Fickes, Vic" wrote: > I am trying to get the Components tutorial to run and am having a problem. > I'm using WebLogic5.1SP8 with the additional fixes from Matthias Kerkoff > (many thanks). The Struts example runs fine and most (but not all) of the > Jakarta taglibs examples run fine, so I think I finally have my environment > set up correctly. > > When I run the Components tutorial, I get this error: > > Tue Feb 13 18:17:42 EST 2001: > resolving taglib uri '/WEB-INF/components.tld' to taglib-location > /WEB-INF/components.tld: > Tue Feb 13 18:17:43 EST 2001: > resolving taglib uri '/WEB-INF/struts-logic.tld' to taglib-location > /WEB-INF/struts-logic.tld: > [Exception in:/common/menuViewSrc.jsp] (line -1): Error in tag library at: > 'logic': The Tag class 'org.apache.struts.taglib.logic.EqualTag' has no > setter method corresponding to TLD declared attribute 'scope', (JSP 1.1 > spec, 5.4.1) > weblogic.servlet.jsp.JspException: (line -1): Error in tag library at: > 'logic': The Tag class 'org.apache.struts.taglib.logic.EqualTag' has no > setter method corresponding to TLD declared attribute 'scope', (JSP 1.1 > spec, 5.4.1) > > This would appear to be an error in the Struts logic tag implementation (for > whatever version of Struts was used in the tutorial app). Is this correct, > or am I doing something else wrong? It is correct, it seem to come from the struts logic tag that don't run on WL 5. I have recompile Components distribution with Struts 2214, and all seem to work. You can test Components tags lib by invoking comps-doc/test/testAll.jsp. If this page looks correct, components must run correctly. If Components latest distribution contains an older version of Struts, you can take the latest Struts version and replace struts.jar and struts-*.tld file in Compoenents example and tutorial. > > > Also, are there any test applications available for the Struts Framework > beans, similar to the ones that come with the Jakarta taglibs? If there are > I haven't run into them yet. Struts comes with 'struts-test.war', Have you check it ? > > > Thanks, > === > Victor Fickes mailto:[EMAIL PROTECTED] > Northrop Grumman PRB Systems www.prb.net > 43865 Airport View Drive301-373-2388 x106 (voice mail) > Hollywood, MD 20636 301-373-2360 (receptionist) > ===
Re: Old questions that die hard
Thank you, David. I have tested struts-example with disabled JavaScript on Netscape. It is still working!!! Maya "Verratti, David" wrote: > Hi Maya: > > In Netscape 4.7: Choose Edit-->Preferences-->Advanced, unselect enable > Javascript > > Don't think you can in IE, means you can rely on Javascript if you know your > users are all IE.. > > see ya > Dave > > -Original Message- > From: mmuchnik [mailto:mmuchnik]On Behalf Of Maya Muchnik > Sent: 13 February 2001 22:13 > To: [EMAIL PROTECTED] > Subject: Re: Old questions that die hard > > David, > > Could you, please, email, how to disable JavaScript in Netscape and / or IE. > > thanks, > > Maya > > "Verratti, David" wrote: > > > Basic rule - don't count on client for anything other than basic html > unless > > you can control the client environment. It's not just ancient browser > > support, fairly modern browsers (ie Netscape, which I assume would be the > > default browser for all non-Windows clients) allow users to disable > > Javascript. > > > > see ya > > Dave > > > > -Original Message- > > From: Andrew Collins [mailto:[EMAIL PROTECTED]] > > Sent: 13 February 2001 20:18 > > To: [EMAIL PROTECTED] > > Subject: Re: Old questions that die hard > > > > > Of course, late-model Javascript also supports regex ... > > > > Perhaps you mean "newer versions of JavaScript"... > > > > (I'm a stickler sometimes, a weissenheimer the remainder.) > > > > Is there good cause to support ancient browsers? > > > > __ > > Do You Yahoo!? > > Get personalized email addresses from Yahoo! Mail - only $35 > > a year! http://personal.mail.yahoo.com/
Re: Starter kit
Get (download) and install each component-project (Ant, Apache, Tomcat, Struts) separately. Read INSTALLATION and README files in each project. A lot on-line documentation. T Gore wrote: What all do I need to download to have Web Server (Apache) a servlet / JSP reference implementation downloaded (Tomcat) and Struts. Thanks,TG
Re: If property !=null tag?
Title: If property !=null tag? Hi, I used the tag like this: property="orderLI" value="" > It seems to work fine. The property orderLI is an array which if there is no value in it returns null to the JSP. I don't think this tag is documented for some reason. I'm using struts version 0.5. If there is a better way I'd like to hear about it! Chris Evans Canlink Interactive Technologies - Original Message - From: Gössel, Stefan To: '[EMAIL PROTECTED]' Sent: Wednesday, February 14, 2001 6:30 AM Subject: If property !=null tag? Hi, i want a part of my JSP code to be ignored, if a property in my Actionbean is null. Any idea for this in struts without too much JSP code ? Thanks in advance, Stefan
File UpLoad
Hi, i am facing the problem when i used to upload the files. when i am passing the parameter to the form (enctype="multipart/form-data", it gives the error like 500 Internal Server Error /mediaman/saveIconFileUpLoadAction.do: javax.servlet.ServletException: BeanUtils.populate java.lang.IllegalArgumentException: argument type mismatch at java.lang.reflect.Method.invoke(Native Method) at org.apache.struts.util.PropertyUtils.setSimpleProperty(PropertyUtils.java:82 4) at org.apache.struts.util.PropertyUtils.setNestedProperty(PropertyUtils.java:75 5) at org.apache.struts.util.PropertyUtils.setProperty(PropertyUtils.java:781) at org.apache.struts.util.BeanUtils.populate(BeanUtils.java:563) at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:333) at org.apache.struts.action.ActionServlet.processPopulate(ActionServlet.java:18 05) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1416) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:481) at javax.servlet.http.HttpServlet.service(HttpServlet.java:772) at javax.servlet.http.HttpServlet.service(HttpServlet.java:865) at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013) at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925) at allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.jav a:88) at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1131) at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:330) at allaire.jrun.jrpp.ProxyEndpoint.run(ProxyEndpoint.java:354) at allaire.jrun.ThreadPool.run(ThreadPool.java:267) at allaire.jrun.WorkerThread.run(WorkerThread.java:74) where as i hava used the populate method properly. can anybody help me in this case. cheers Byomakesh
Re[2]: As promised (Struts Presentation)
Hello Maya, Wednesday, February 14, 2001, 3:12:04 PM, you wrote: MM> Oleg, MM> Thank you very much for very detail, helpful answer. MM> The best wishes and good luck. MM> Maya Always welcome. 8) >> You can store image file names in properties in use it in tags >> - >> >> Recently I fix tag and post it to the struts-dev. If Craig apply it then you can avoid such constructions as - and use tag - -- Best regards, Olegmailto:[EMAIL PROTECTED]
Re: Properties
Memo from Nic Hobbs of PricewaterhouseCoopers Start of message text Hi Sebastian, I have a rough and ready ResourceBundle working against a database using a JNDI provided connection pool. This works under Weblogic 6 but haven't tested it anywhere else, and it is not production quality (most exceptions are just ignored and the config parameter format is not exactly well thought out!), but it should give you an idea of what needs to be done! The comments in the files should get you started. Good luck! HTH Nic (See attached file: DatabaseMessageResources.java)(See attached file: DatabaseMessageResourcesFactory.java) Sebastien Cesbron <[EMAIL PROTECTED]> on 14/02/2001 09:54:05 Please respond to [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc: Subject: Properties Hi, Does anybody have an experience of properties that are not in the name=value format (xml format for example). It seems that I need to create a new subclass of ResourceBundle (like PropertyResourceBundle) but is it an easy task ? Do you know any example of such a thing ? Thanks Sebastien Cesbron __ ifrance.com, l'email gratuit le plus complet de l'Internet ! vos emails depuis un navigateur, en POP3, sur Minitel, sur le WAP... http://www.ifrance.com/_reloc/email.emailif - End of message text The principal place of business of PricewaterhouseCoopers and its associate partnerships is 1 Embankment Place, London WC2N 6NN where lists of the partners' names are available for inspection. All partners in the associate partnerships are authorised to conduct business as agents of, and all contracts for services to clients are with, PricewaterhouseCoopers. The UK firm of PricewaterhouseCoopers is authorised by the Institute of Chartered Accountants in England and Wales to carry on investment business. PricewaterhouseCoopers is a member of the world-wide PricewaterhouseCoopers organisation. The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer. DatabaseMessageResources.java DatabaseMessageResourcesFactory.java
Re: As promised (Struts Presentation)
Oleg,
Thank you very much for very detail, helpful answer.
The best wishes and good luck.
Maya
Oleg V Alexeev wrote:
> Hello Maya,
>
> Wednesday, February 14, 2001, 2:56:18 AM, you wrote:
>
> MM> 1/ Is it possible to change a language on-line. For example one user uses English
> MM> language with his browser, then he switchs to French. Can Struts handle this? I
> MM> think, in your document the properties file is loaded in the beginning
> MM> ActionServlet startup.
>
> JVM load all files in properties bundle at once and all this
> resources can be used in run time. Example of switching to another
> locale -
>
> public class ChangeLanguageAction extends Action {
>
> public ActionForward perform(
> ActionMapping mapping,
> ActionForm form,
> HttpServletRequest request,
> HttpServletResponse response)
> throws IOException, ServletException {
> String country = ((ChangeLanguageForm) form).getCountry();
> String language = ((ChangeLanguageForm) form).getLanguage();
> String source = ((ChangeLanguageForm) form).getSource();
> HttpSession session = request.getSession();
> ActionForward forward = null;
>
> setLocale( request, new Locale( language, country ) );
>
> if( source==null )
> forward = (mapping.findForward("success"));
> else {
> forward = new RedirectingActionForward();
> forward.setPath( source );
> }
>
> return forward;
> }
>
> }
>
> MM> 2/ How replace images with a text through properties file? (I think this question
> MM> was posted already).
>
> You can store image file names in properties in use it in tags
> -
>
>
> May be I not understand your 2/ question... Explane please, if so.
>
> --
> Best regards,
> Olegmailto:[EMAIL PROTECTED]
Loosing error-object when using frame
Hi, We are creating a web-application using Struts and JSPs. Everytime it is necessary, we use Struts. When we will make a new frameset, we work without Struts. Everything works fine accept the following situation: In one frame there is a form. The target of the form, if it is submitted, is the parent frame. If there is an error I will show the same form (site) in the current frame (_self) again. But I have found one problem. I told Struts in the case of error to load the JSP with the frameset again. This works fine, but the error-object gets lost. Of course, because the scope is request. Somebody an idea how to solve this problem cu Frank Hossfeld
AW: Avoid JSP caching by the browser
> -Ursprungliche Nachricht- > Von: Lind Jurgen [SMTP:[EMAIL PROTECTED]] > Gesendet am: Mittwoch, 14. Februar 2001 11:18 > An: [EMAIL PROTECTED] > Betreff: Avoid JSP caching by the browser > > Hi there, > > I have the following problem: in order to prevent the web-browser > from using cached versions of a jsp, we plan to add some unique > timestamp (which will actually be ignored by the jsp) to the url > that calls the jsp, e.g.: > > myjsp > > While this works fine when cookies are enabled, it fails when > cookies are disabled because it does not make use of the URL > rewriting capabilities of the Struts taglib. > > Using the html:link tag, however, introduces the difficulty how to > dynamically add the timestamp. Using something like > > myjsp > > fails as the Java Code will not get interpreted but it will > be literally > appended to the URL, causing a Decode Error in the receiving JSP. > > Has anyone experienced similar problems (with the web browser caching > jsp pages) and could offer some help or are there any > suggestions wrt. > the above evaluation problem? > > [] Hi, > > i have not tried all the attributes of the tag "link" in > struts-html.tld. But a simple workaround > could be > myjsp > (or not?) > > Dimitris > no, because then I run into the same problem as before as soon as cookies are disabled.. regards Jürgen
RE: If property !=null tag?
Title: If property !=null tag? If you are using Struts 1.0, have you tried? Shown only when yourProp is not null -Original Message- From: Gössel, Stefan [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 12:31 PM To: '[EMAIL PROTECTED]' Subject: If property !=null tag? Hi, i want a part of my JSP code to be ignored, if a property in my Actionbean is null. Any idea for this in struts without too much JSP code ? Thanks in advance, Stefan
If property !=null tag?
Title: If property !=null tag? Hi, i want a part of my JSP code to be ignored, if a property in my Actionbean is null. Any idea for this in struts without too much JSP code ? Thanks in advance, Stefan
setting docBase in JBuilder to run/debug
Hello, it's only slightly related to STruts, but I like to get your suggestions to the following problem: I use JBuilder 4 Enterprise Trial with Tomcat 3.2 and Struts. If I want to run the application, the Tomcat docBase is always set to D:\ instead of D:\TOMCAT. I provided the correct path to the JVM via the -D.. parameter. The project properties are set correctly Here's the related output from JBuilder: Setting home to D:\ Starting tomcat. Check logs/tomcat.log for error messages Context log: path="" Adding context path="" docBase="D:\" Context log: path="/vip-gallery" Adding context path="/vip-gallery" docBase="D:\" Starting tomcat install="d:\tomcat\" home="D:\" classPath="C:\Programme\JBuilder4\tomcat\lib\webserver.jar;C:\Programme\JBuilder4\tomcat\lib\jasper.jar;C:\Programme\JBuilder4\tomcat\lib\xml.jar;C:\Programme\JBuilder4\lib\servlet.jar;D:\tomcat\vipshop\classes;C:\Programme\Oracle\JDeveloper 3.2\myclasses\struts.jar;C:\Programme\JBuilder4\lib\webserverglue.jar;D:\tomcat\webapps\vip-gallery\WEB-INF\classes;C:\Programme\Oracle\JDeveloper 3.2\myclasses\struts.jar;C:\Programme\JBuilder4\lib\servlet.jar;D:\tomcat\vipshop\classes;C:\Programme\JBuilder4\lib\jbuilder.jar;C:\Programme\JBuilder4\lib\help.jar;C:\Programme\JBuilder4\lib\gnuregexp.jar;C:\Programme\JBuilder4\jdk1.3\demo\jfc\Java2D\Java2Demo.jar;C:\Programme\JBuilder4\jdk1.3\jre\lib\i18n.jar;C:\Programme\JBuilder4\jdk1.3\jre\lib\jaws.jar;C:\Programme\JBuilder4\jdk1.3\jre\lib\rt.jar;C:\Programme\JBuilder4\jdk1.3\jre\lib\sunrsasign.jar;C:\Programme\JBuilder4\jdk1.3\lib\dt.jar;C:\Programme\JBuilder4\jdk1.3\lib\tools.jar;C:\Programme\Oracle\JDeveloper 3.2\java1.2; C:\Programme\Oracle\JDeveloper 3.2\java1.2\jre;C:\Programme\Oracle\JDeveloper 3.2\java1.2\lib" JSP Servlet Started ... Do you have a suggestion how to set the docBase correctly? Regards Michael
AW: Avoid JSP caching by the browser
-Ursprungliche Nachricht- Von:Lind Jurgen [SMTP:[EMAIL PROTECTED]] Gesendet am:Mittwoch, 14. Februar 2001 11:18 An: [EMAIL PROTECTED] Betreff:Avoid JSP caching by the browser Hi there, I have the following problem: in order to prevent the web-browser from using cached versions of a jsp, we plan to add some unique timestamp (which will actually be ignored by the jsp) to the url that calls the jsp, e.g.: myjsp While this works fine when cookies are enabled, it fails when cookies are disabled because it does not make use of the URL rewriting capabilities of the Struts taglib. Using the html:link tag, however, introduces the difficulty how to dynamically add the timestamp. Using something like myjsp fails as the Java Code will not get interpreted but it will be literally appended to the URL, causing a Decode Error in the receiving JSP. Has anyone experienced similar problems (with the web browser caching jsp pages) and could offer some help or are there any suggestions wrt. the above evaluation problem? [] Hi, i have not tried all the attributes of the tag "link" in struts-html.tld. But a simple workaround could be myjsp (or not?) Dimitris
Properties
Hi, Does anybody have an experience of properties that are not in the name=value format (xml format for example). It seems that I need to create a new subclass of ResourceBundle (like PropertyResourceBundle) but is it an easy task ? Do you know any example of such a thing ? Thanks Sebastien Cesbron __ ifrance.com, l'email gratuit le plus complet de l'Internet ! vos emails depuis un navigateur, en POP3, sur Minitel, sur le WAP... http://www.ifrance.com/_reloc/email.emailif
