help! confused over forms and errors and oooh, other stuff :-)
Hi Guys,
I wonder if you could help me out a little please? I am in the middle of
developing a proof of concept app with struts. If this comes off the company
could migrate away from a proprietary framework to struts, which I am in
favour of.
I seem to have confused myself over an issue regarding validation and forms.
Ill give a simplified workflow as an example.
We have for all intents and purposes a generated product overview page along
these lines:
*Wooden Throat Mallet59.95 buy
*Leather Uncle Frightener12.60 buy
*Vandal-Proof Toupee 99.99 buy
Which is generated from struts tags. The buys are links to a pages which
look something like buyit.do?itemid=50. The buyit.do action has registered
a form in request scope. During processing, it looks up the full details of
the itemid and places the resulting bean in request scope. It then creates
the form object, populates it with some default information and sets this in
the request too before forwarding onto buypage.jsp
This displays the details of the item, and contains a form for entering,
say, credit card details:
*Item: Vandal-Proof Toupee
*Manufacturer: Lockheed-Martin Advanced Hairpiece Research
*Price: 99.99
*Additional Information: Also Invisible to Radar
*
* Inside Leg Measurement: _
* Credit Card Number:
* BUY {forwards onto checkout.do}
Which is all fine and dandy and displays correctly. Though what happens if
the form validate fails? If checkout.do has an input attribute which is
buypage.jsp then this will fail because the item details are stored on the
request has not been set up (it was done in buyit.do). I could of course
set the item details on the session, but if the user opened new browser
windows for the buyit link, then the session level object will be
overwritten.
If have looked into placing the details object onto the form bean as it is
populated, but will that property be preserved across a validate failing?
And how do I get at the properties of the form bean outside of the
hmtl:xxx tags?
Help !
Regards
Ned
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Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
How does Struts compare to Barracuda?
Here is the link: http://barracuda.enhydra.org/Barracuda/ Can we learn something from it? Is it better or worse? Johan
Re: AW: Struts on IPlanet
Oliver, For the installation page, I just entered for iPlanet Application Server 6.0 Service Pack 2 is recommended. NOTE: At present, the Struts example application still uses a non-Serializable servlet context attribute, and will not run in an environment that requires them, like iPlanet Application Server. For iPlanet Web Server 4.2 I added Stanley Santiago's notes from http://www.mail-archive.com/struts-user@jakarta.apache.org/msg00022.html Is this sufficient? Should we include your workaround(s) for Service Pack 1? Are these them? http://www.mail-archive.com/struts-user@jakarta.apache.org/msg01992.html http://www.mail-archive.com/struts-user@jakarta.apache.org/msg02011.html [EMAIL PROTECTED] wrote: Hi, no it isn't scary...it is working :-) ! We are using IP6.0 with WS4.1 and although the manual says that SP1 is supporting SERVLET2.1 and JSP0.92 only the main functions are runing (with a small workaround). But IP6.0 SP2 supports SERVLET2.2 and JSP1.1 as SUN announced. We are just installing SP2 and in a week we will see if this workaround isn't necessary any longer. Regards Oliver (Craig :-) ) Lauer
[Fwd: cvs commit: jakarta-struts/src/share/org/apache/struts/taglib/html ImageTag.java ImgTag.java]
Anyone who is using the HTML Image tag should note the following. See also http://www.mail-archive.com/struts-dev%40jakarta.apache.org/msg00443.html --- Original Message From: [EMAIL PROTECTED] Subject: cvs commit: jakarta-struts/src/share/org/apache/struts/taglib/html ImageTag.java ImgTag.java To: [EMAIL PROTECTED] craigmcc01/02/19 18:59:00 Modified:src/doc struts-html.xml src/share/org/apache/struts/taglib/html ImageTag.java ImgTag.java Log: Retrofit the html:image tag so that it offers the same support for dynamically looking up alternate text, context-relative URIs, or source URLs in a message resources bundle that the html:img tag has. NOTE: This change is *not* backwards compatible, but the changes are very easy: * Change any use of 'src="foo" isKey="true"' to 'srcKey="foo"' instead * Change any use of 'path="/foo"' to 'page="/foo"' instead Revision ChangesPath 1.14 +144 -74 jakarta-struts/src/doc/struts-html.xml Index: struts-html.xml === RCS file: /home/cvs/jakarta-struts/src/doc/struts-html.xml,v retrieving revision 1.13 retrieving revision 1.14 diff -u -r1.13 -r1.14 --- struts-html.xml 2001/02/20 01:48:44 1.13 +++ struts-html.xml 2001/02/20 02:58:59 1.14 @@ -1251,165 +1251,235 @@ /tag - tag - nameimage/name - summary -Renders an input of type "image" - /summary - tagclassorg.apache.struts.taglib.html.ImageTag/tagclass - info -This tag renders an input of type "image". Use the "src" attribute -in conjunction with a non-null "isKey" attribute to retrieve a -property value from a resource bundle. Use the "path" -attribute to specify a direct path to the image. See info on -the "property" attribute if you would like to obtain the coordinates -of the mouse click submitted with the request. - /info - attribute -namelocale/name -requiredfalse/required -rtexprvaluetrue/rtexprvalue -info -The locale to use to retrieve the key specified by "src". -/info - /attribute - attribute -namebundle/name -requiredfalse/required -rtexprvaluetrue/rtexprvalue -info -The servlet context attribute key for the MessageResources -instance to use. -/info - /attribute - attribute -nameaccesskey/name -requiredfalse/required -rtexprvaluetrue/rtexprvalue - /attribute +tag +nameimage/name +summary +Render an input tag of type "image" +/summary + tagclassorg.apache.struts.taglib.html.ImageTag/tagclass +info + +pRenders an HTML codelt;inputgt;/code tag of type +"image". The base URL for this image is calculated directly +based on the value specified in the codesrc/code or +codepage/code attributes, or indirectly by looking up a +message resource string based on the codesrcKey/code or +codepageKey/code attributes. You strongmust/strong +specify exactly one of these attributes./p + +pIf you would like to obtain the coordinates of the mouse +click that submitted this request, see the information below +on the codeproperty/code attribute./p + +/info + +attribute +nameaccesskey/name +requiredfalse/required +rtexprvaluetrue/rtexprvalue +info +pThe keyboard character used to move focus immediately +to this element./p +/info +/attribute + +attribute +namealt/name +requiredfalse/required +rtexprvaluetrue/rtexprvalue +info +pThe alternate text for this image./p +/info +/attribute + +attribute +namealtKey/name +requiredfalse/required +rtexprvaluetrue/rtexprvalue +info +pThe message resources key of the alternate text for this +image./p +/info +/attribute + +attribute +namebundle/name +requiredfalse/required +
AW: Re: AW: Struts on IPlanet
-- Original Nachricht -- Oliver, For the installation page, I just entered for iPlanet Application Server 6.0 Service Pack 2 is recommended. == In a week I will know if that will fix our problems concerning the Servlet2.2 incompatibility NOTE: At present, the Struts example application still uses a non-Serializable servlet context attribute, and will not run in an environment that requires them, like iPlanet Application Server. == you have to deploy the Servlet as non distributable and then it works with SP1, too For iPlanet Web Server 4.2 I added Stanley Santiago's notes from http://www.mail-archive.com/struts-user@jakarta.apache.org/msg00022.html Is this sufficient? Should we include your workaround(s) for Service Pack 1 ? == You have to, not especially this one, but one that fixes the getServletPath()-Problem. Are these them? == Yes, it works and I like STRUTS. We did not use all the Tags yet but it runs... http://www.mail-archive.com/struts-user@jakarta.apache.org/msg01992.html == This one is cheap but the most important one http://www.mail-archive.com/struts-user@jakarta.apache.org/msg02011.html [EMAIL PROTECTED] wrote: Hi, no it isn't scary...it is working :-) ! We are using IP6.0 with WS4.1 and although the manual says that SP1 is supporting SERVLET2.1 and JSP0.92 only the main functions are runing (with a small workaround). But IP6.0 SP2 supports SERVLET2.2 and JSP1.1 as SUN announced. We are just installing SP2 and in a week we will see if this workaround isn't necessary any longer. Regards Oliver (Craig :-) ) Lauer
database locks.. (OT)
hi guys Please bear with me.. I am facing a typical problem though not directly related to struts.. I am using struts to power my web application.. I am trying to implement a multi page form and in some scenario the application is hanging because of a database lock which is not going away after some DML. I am not sure if struts has got to do anything with this. I tried out the postgresql mailing list too with no success. Could any one of u suggest a way out or any guidelines. I can post the code too if somebody can have a look at it. Thanks a ton.. Anand
Re: How does Struts compare to Barracuda?
Okay, that's a good question.
Here is my instant analysis of Barracuda v. Struts.
("Instant" and therefore probably worthless. BTW, I haven't used
Barracuda. And my experience with Struts is confined to toy
applications.)
Barracuda has apparently bitten of the Event/Listener model
asits top-priority task. Struts has deferred this design decision
until a later release. And there certainly are a ton of more mundane
concepts to work through.
The Event/Listener Model appears on the Struts 1.1 to-do
list. My guess is that it will actually not make 1.1, that it will be
delayed until 2.0 because of the massive refactoring required. Just
guessing.
The Barracuda docs say that the Event/Listener Model is the
crux of the matter for leveraging MVC on the Web. Yes. Yes.
Yes. Very True, IMHO. You screw it up, you lose.
But also Very Difficult given the client-server division of
labor in HTTP and the on-going Browser War. (Just one war,
obviously.)
It does seem wise to me that Struts should not make a hasty
decision onits Event/Listener Model, but not past the point where it would
break everything to put it in.
When I worked on MVC apps in C++/Motif, we addressed this
issueless generally,as Update Dependencies. We
compiledthe UD declarationsinto Mapping objects using a
preprocessor. This seemed adequate for building lively apps and gave
quite good performance, but Motif widgets had a much finer granularity of
interaction in the application logic than do FormBeans.
Of course,the Swing-style Event/Listener Model is much
morerun-time oriented in its approachthan is a UD
preprocessor. Java favors late binding. C++ favors early
binding. It is a continuum. Each Framework needs to pick its
spot on this continuum regardless of its implementation language.
My guess, and it is just a guess, is that Struts will end up
with some flavor of static UDs in thestruts-config.xml, and that will be
about the best you can do for HTTP Web apps.
Barracuda will have to stick its hands very deeply into the
DHTML mud to map the client-side events out to server-side objects. This
is a mess. Once Barracuda is stuck there, then it falls victim tothe
"real" barracudas (the proprietary vendor interests) .
If you need something very dynamic,very programmatic in
your application'sEvent/Listener Model, then you need a different protocol
than HTTP over the wire. Period. IMHO. Surely X-style
"GUI Servers" will become part of the Web in due time. Same goes for
Critrix-style "Terminal Servers". (Were it not for firewalls, this
would already be true.) And if that doesn't happen, then look who's
betting on SOAP(nee XML-RPC) to put events (as RPCs) on the
wire.Clever marketing can easily morphSOAPinto an
Event/Listener Model on its own, eventually escaping HTTP
altogether.
Struts is wise to avoid this fray, for now.
But, I'll bet that others in the Struts community feel strongly just the other
way, that early engagementwould bebest. Maybe Barracuda
has already done succeeded in mapping client-side events. ??
Dan Connelly
- Original Message -
From: "Johan Compagner" [EMAIL PROTECTED]
To: "Struts" [EMAIL PROTECTED]
Sent: Tuesday, February 20, 2001 7:28 AM
Subject: How does Struts compare to
Barracuda?
Here is the link:
http://barracuda.enhydra.org/Barracuda/
Can we learn something from it? Is it better or worse?
Johan
REQUEST for Multi-part form EXAMPLE
Does anyone have an example of a multi-part form they would like to donate to the struts example library ? -Rob
Re: How does Struts compare to Barracuda?
I aggree, mapping DHTML events to server side handlers would be icky, and
tough to support accross browsers. Using a more cleaner UI def like
XUL (http://www.xulplanet.com/) is probably a better idea (although there
is only one browser supporting it thus far, although I'm sure someone could
write a plugin to support it in IE).
I like your comment on the firewall preventing more of the dynamic type
webapps (see my article on XSpot http://www.us-eh.com/craiger/articles/xspot/),
it's so true.
tataryn:craig/>
Dan Connelly wrote:
Okay, that's
a good question.Here is my instant analysis
of Barracuda v. Struts. ("Instant" and therefore probably worthless.
BTW, I haven't used Barracuda. And my experience with Struts is confined
to toy applications.)Barracuda has apparently
bitten of the Event/Listener model as its top-priority task. Struts
has deferred this design decision until a later release. And
there certainly are a ton of more mundane concepts to work through.The
Event/Listener Model appears on the Struts 1.1 to-do list. My guess
is that it will actually not make 1.1, that it will be delayed until 2.0
because of the massive refactoring required. Just guessing.The
Barracuda docs say that the Event/Listener Model is the crux of the matter
for leveraging MVC on the Web. Yes. Yes. Yes. Very
True, IMHO. You screw it up, you lose.But
also Very Difficult given the client-server division of labor in HTTP and
the on-going Browser War. (Just one war, obviously.)It
does seem wise to me that Struts should not make a hasty decision on its
Event/Listener Model, but not past the point where it would break everything
to put it in.When I worked on MVC apps in C++/Motif,
we addressed this issue less generally, as Update Dependencies. We
compiled the UD declarations into Mapping objects using a preprocessor.
This seemed adequate for building lively apps and gave quite good performance,
but Motif widgets had a much finer granularity of interaction in the application
logic than do FormBeans.Of course, the Swing-style
Event/Listener Model is much more run-time oriented in its approach than
is a UD preprocessor. Java favors late binding. C++ favors
early binding. It is a continuum. Each Framework needs
to pick its spot on this continuum regardless of its implementation language.My
guess, and it is just a guess, is that Struts will end up with some flavor
of static UDs in the struts-config.xml, and that will be about the best
you can do for HTTP Web apps.Barracuda will
have to stick its hands very deeply into the DHTML mud to map the client-side
events out to server-side objects. This is a mess. Once Barracuda
is stuck there, then it falls victim to the "real" barracudas (the proprietary
vendor interests) .If you need something very
dynamic, very programmatic in your application's Event/Listener Model,
then you need a different protocol than HTTP over the wire. Period.
IMHO. Surely X-style "GUI Servers" will become part of the Web in
due time. Same goes for Critrix-style "Terminal Servers".
(Were it not for firewalls, this would already be true.) And
if that doesn't happen, then look who's betting on SOAP (nee XML-RPC) to
put events (as RPCs) on the wire. Clever marketing can easily
morph SOAP into an Event/Listener Model on its own, eventually escaping
HTTP altogether.Struts is wise to avoid this
fray, for now. But, I'll bet that others in the Struts
community feel strongly just the other way, that early engagement would
be best. Maybe Barracuda has already done succeeded in mapping
client-side events. ??Dan Connelly-
Original Message -From: "Johan Compagner" [EMAIL PROTECTED]>To:
"Struts" [EMAIL PROTECTED]>Sent:
Tuesday, February 20, 2001 7:28 AMSubject: How does
Struts compare to Barracuda?> Here is the link:
> http://barracuda.enhydra.org/Barracuda/
>
> Can we learn something from it?
> Is it better or worse?
>
> Johan
>
>
--
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
Problem w/ Struts and VA for Java
Struts people I had great success using VAJ to develop Struts applications a few months ago, but recently upgraded my Tomcat to 3.2.1 and Struts to recent releases. I lost the ability to develop and debug my Struts application classes within VAJ. Craig's excellently clear message of Feb. 13th (#4566) entitled 'Classpaths and the "struts.jar" file' gave, I believe, the reason. Craig explained that containers (esp. Tomcat 3.x and 4.x) use custom class loaders that *must* find struts.jar and application classes in the WEB-INF directories of the web app itself, in the file system. (See Craig's message if you want to understand the reasons thoroughly) VAJ is a self-contained environment and needs to be able to work with imported source and internally generated classes. Unless there is something that I am not understanding, it appears to me that after Tomcat 3.x, Struts applications cannot be developed in VAJ. I'm very aware that one can debug into classes external to VAJ, but that is far short of being able to use all of the extremely powerful features of the IDE. A perhaps naive question would be whether there is any way for VAJ users to temporarily inhibit Tomcat from employing specialized classloaders for webapps just during development. If anyone knows another workaround for this, I would love to hear it. TIA -- Tom Miller Miller Associates, Inc. [EMAIL PROTECTED] 641.469.3535 Phone 413.581.6326 FAX
Re: Problem w/ Struts and VA for Java
Hi Tom,
I'm using VAJ 3.5.2 with Tomcat 3.2.1 with no problems at all. Here is my
setup:
Get rid of any IBM WTE stuff
Import the servlet.jar from tomcat into it's own project
Import all the struts source and resources into its own project
Create a class in a package in another project called 'TomcatRunner' (code
follows at the end of this mail)
right click on tomcat runner and set the properties
in properties set tomcat.home=c:\yourwebhome
on the class path page set the 'extra directories' path to be
c:\TomcatLocal\lib\webserver.jar;
c:\TomcatLocal\lib\ant.jar;
c:\TomcatLocal\lib\jasper.jar;
c:\TomcatLocal\lib\jaxp.jar;
c:\TomcatLocal\lib\parser.jar;
(or whatever your directories are)
And in the project path add the VAJ projects for the servlet API and struts,
plus whatever your own app project is. And that should be it, you can edit
and debug your own code and the struts source in VAJ.
Your problems will come if you try to import Tomcat into VAJ. That I have
not managed to do sucessfully!
Hope that helps!
Ned
TomcatRunner.java:
import java.lang.reflect.*;
public class TomcatRunner {
public TomcatRunner() {
super();
}
public static void main(java.lang.String[] args) {
TomcatRunner runner = new TomcatRunner();
runner.start(args, "org.apache.tomcat.startup.Tomcat"); }
public void start(String[] args, String className) {
try {
Class cls = Class.forName(className);
if (cls != null) {
Method main = cls.getMethod("main",new Class[] {new
String[]{}.getClass()});
if(main != null) {
Object [] mainArgs = new Object [] {args};
main.invoke(null,mainArgs);
}
}
} catch (ClassNotFoundException e) {
System.out.println("Unable to find the class "+className);
System.out.println("Set properties as described in this class' javadoc.");
} catch (Exception e) {
e.printStackTrace();
}
}
}
From: Tom Miller [EMAIL PROTECTED]
Reply-To: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Problem w/ Struts and VA for Java
Date: Tue, 20 Feb 2001 10:14:27 -0600
Struts people
I had great success using VAJ to develop Struts applications a few
months ago, but recently upgraded my Tomcat to 3.2.1 and Struts to
recent releases. I lost the ability to develop and debug my Struts
application classes within VAJ.
Craig's excellently clear message of Feb. 13th (#4566) entitled
'Classpaths and the "struts.jar" file' gave, I believe, the reason.
Craig explained that containers (esp. Tomcat 3.x and 4.x) use custom
class loaders that *must* find struts.jar and application classes in the
WEB-INF directories of the web app itself, in the file system. (See
Craig's message if you want to understand the reasons thoroughly)
VAJ is a self-contained environment and needs to be able to work with
imported source and internally generated classes. Unless there is
something that I am not understanding, it appears to me that after
Tomcat 3.x, Struts applications cannot be developed in VAJ. I'm very
aware that one can debug into classes external to VAJ, but that is far
short of being able to use all of the extremely powerful features of the
IDE.
A perhaps naive question would be whether there is any way for VAJ users
to temporarily inhibit Tomcat from employing specialized classloaders
for webapps just during development.
If anyone knows another workaround for this, I would love to hear it.
TIA
--
Tom Miller
Miller Associates, Inc.
[EMAIL PROTECTED]
641.469.3535 Phone
413.581.6326 FAX
_
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
RE: Problem: Struts under Tomcat 3.2.1
Thanks, I actually got a more recent build from today and cleaned the directory. It now works properly. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Maya Muchnik Sent: Tuesday, February 20, 2001 11:12 AM To: [EMAIL PROTECTED] Subject: Re: Problem: Struts under Tomcat 3.2.1 Maybe you need to remove struts-example directory and startup Tomcat again. Christian Billen wrote: Hello, I am trying to run the struts-example.war from the 20010216 nightly build in my tomcat 3.2.1 On initialization I can see it initializing properly (reading User from xml file and all) and I can even bring the main page in the browser http://localhost/struts-example If I try to click the Register link in the example app: (which does http://localhost/struts-example/editRegistration.do?action=Create) I get a nice 500 error and a stack trace: Error: 500 Location: /struts-example/editRegistration.do Internal Servlet Error: java.lang.ClassCastException: javax.servlet.ServletException at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:354) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:78 6) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:732) at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection (Ajp12ConnectionHandler.java:166) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:407) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Thread.java:484) Any clue on what I could have configured wrong? my struts.jar is NOT in my classpath I have also added the "AddHandler jserv-servlet .do" to my tomcat.conf file Thanks for your help, Christian Billen
Re: Problem: Struts under Tomcat 3.2.1
Christian Billen wrote: Hello, I am trying to run the struts-example.war from the 20010216 nightly build in my tomcat 3.2.1 On initialization I can see it initializing properly (reading User from xml file and all) and I can even bring the main page in the browser http://localhost/struts-example If I try to click the Register link in the example app: (which does http://localhost/struts-example/editRegistration.do?action=Create) I get a nice 500 error and a stack trace: Error: 500 Location: /struts-example/editRegistration.do Internal Servlet Error: java.lang.ClassCastException: javax.servlet.ServletException Could you double check that there is no "servlet.jar" or "jsdk.jar" file on your class path (except for the one that the Tomcat startup script adds), or in your system extensions directory ($JAVA_HOME/jre/lib/ext)? This sounds like a class versioning conflict inside of Tomcat. If it is not this situation, please post a bug in our bug tracking system at: http://nagoya.apache.org/bugzilla/ Craig McClanahan
how to use image maps for form submission
Hi, I need to use image maps to submit a form using struts. Is there an equivalent for form:submit to submit a form using imagemap and how to configure the same? Ravi
Re: Problem: Struts under Tomcat 3.2.1
Whose is the file "jsdk.jar"? Is it the new for Tomcat 3.1? "Craig R. McClanahan" wrote: Could you double check that there is no "servlet.jar" or "jsdk.jar" file on your class path (except for the one that the Tomcat startup script adds), or in your system extensions directory ($JAVA_HOME/jre/lib/ext)? This sounds like a class versioning conflict inside of Tomcat. If it is not this situation, please post a bug in our bug tracking system at: http://nagoya.apache.org/bugzilla/ Craig McClanahan
Re: Problem: Struts under Tomcat 3.2.1
Maya Muchnik wrote: Whose is the file "jsdk.jar"? Is it the new for Tomcat 3.1? No, it's actually old ... it was the servlet 2.0 classes from the old "Java Server Development Kit". Anyone who ever used Apache JServ is likely to have this file hanging around, and it will cause problems if it is on your classpath. Craig
RE: java.lang.Exception: org/apache/struts/action/ActionForm
Victor, What is the directory structure of the webapp you're trying to run? Also, do you have struts.jar in your /WEB-INF/lib directory, and struts.jar out of your system classpath? The exception kind of looks like a ClassNotFoundException -Original Message- From: Victor Corrales To: [EMAIL PROTECTED] Sent: 2/20/01 4:34 AM Subject: java.lang.Exception: org/apache/struts/action/ActionForm Hi everybody. Does anyone know what this exception means? I have tried running struts 0.5 and 1.0 but it's the same. I am using Apache + Bluestone UBS. In my IE5.5 window appear only : Error: JSP run-time exception org/apache/struts/action/ActionForm And in my log window : ... Pop org.apache.struts.action.ActionFormBean New org.apache.struts.action.ActionMapping Set org.apache.struts.action.ActionMapping properties New org.apache.struts.action.ActionForward Set org.apache.struts.action.ActionForward properties Call org.apache.struts.action.ActionMapping.addForward(ActionForward[flow1]) Pop org.apache.struts.action.ActionForward New org.apache.struts.action.ActionForward Set org.apache.struts.action.ActionForward properties Call org.apache.struts.action.ActionMapping.addForward(ActionForward[flow2]) Pop org.apache.struts.action.ActionForward Call org.apache.struts.action.ActionServlet.addMapping(ActionMapping[path=/we lcome, type=WelcomeAction]) Pop org.apache.struts.action.ActionMapping Rebuilding servlet for 'index.jsp' because autoReload is 'true' and 'e:\UTILS\Bluestone\myWebapps\me\index.jsp'has not been loaded yet index.jsp: init *** java.lang.Exception: org/apache/struts/action/ActionForm at SaServletEngine.me.index_sjsp_VERSION1._jspService(index_sjsp_VERSION1.j ava, Compiled Code) at java.lang.Exception.init(Exception.java, Compiled Code) at SaServletEngine.me.index_sjsp_VERSION1._jspService(index_sjsp_VERSION1.j ava, Compiled Code) at SaApi.servlet.jsp.SaJspServlet.service(SaJspServlet.java:108) at javax.servlet.http.HttpServlet.service(HttpServlet.java:865) at SaApi.servlet.SaServletUtils.serviceRequest(SaServletUtils.java:1571) ... Thanks, Victor Victor Corrales [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Phone: +44 (0) 191 206 4535 Bluestone Arjuna Labhttp://www.arjuna.com http://www.arjuna.com/ Rotterdam House 116 The Quayside Newcastle upon Tyne (NE1 3DY)
component project rebuild / updating
Hello, Cedric, I have got your *zip file maybe one week ago. Do you update it and how often? Does it depend on the struts updating? Thanks, Maya
Session atribute lost on forward
Sorry for a question not directly related to struts.
My app is always enterred through login.do action, which authenticates
the user and sets a login bean in session attribute and returns some
forward based on user access level. However, when the forward page is
displayed (along with the list of session attributes), the login bean
is not there if the session has isNew()==true. If you hit reload, the
session.isNew()==false and the attribute appears. It seems that when
I store something in a new session and then do an internal forward,
the request in the second page doesn't have info about the session, and
all attributes are lost. Any idea how to fix this?
This is on Tomcat 3.2.1. Here is the action class's perform() method.
public ActionForward perform(ActionMapping mapping,
ActionForm
form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
String sKerberosID = request.getRemoteUser();
// create login bean for this user this application
LoginBean login = new LoginBean( sKerberosID );
// store login bean as a session-scope bean
request.getSession().setAttribute( LoginBean.getKey(), login
);
return mapping.findForward( login.getSuperuser() ?
"superuser" : "success" );
}
Re: Problem: Struts under Tomcat 3.2.1
Maybe you need to remove struts-example directory and startup Tomcat again. Christian Billen wrote: Hello, I am trying to run the struts-example.war from the 20010216 nightly build in my tomcat 3.2.1 On initialization I can see it initializing properly (reading User from xml file and all) and I can even bring the main page in the browser http://localhost/struts-example If I try to click the Register link in the example app: (which does http://localhost/struts-example/editRegistration.do?action=Create) I get a nice 500 error and a stack trace: Error: 500 Location: /struts-example/editRegistration.do Internal Servlet Error: java.lang.ClassCastException: javax.servlet.ServletException at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:354) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:78 6) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:732) at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection (Ajp12ConnectionHandler.java:166) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:407) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Thread.java:484) Any clue on what I could have configured wrong? my struts.jar is NOT in my classpath I have also added the "AddHandler jserv-servlet .do" to my tomcat.conf file Thanks for your help, Christian Billen
Re: How does Struts compare to Barracuda?
[EMAIL PROTECTED] wrote: I have the same question as Dan regarding the event model Why does the browser need to understand or send events (for the most common navigation/data entry)- wouldn't this be the responsibility of the controller servlet to translate HTTP requests/responses into Java events? As a side, The InetBeans components included with Borland JBuilder 4.0 perform this type of event translation. I was very excited to see these beans in JBuilder, but unfortunately the lack of documentation and examples makes them difficult to use. Just for one simple use case, consider that you might want a user to make a selection in one GUI component (say, clicking a checkbox) that should cause another GUI component (say, a select box) to be repopulated based on a database query done at the server. Web apps have to deal with the fact that events like this happen on the client side, but require actions on the server side -- to say nothing about how you arrange for the user interface to be updated. It's even more complicated when you realize that the JavaScript and DHTML support in popular browsers is so different that you almost need to program a support environment for each browser separately. As others have said, doing this stuff right is *not* easy. At the moment, Struts is focused almost totally on the server side, and we will need to think long and hard about how to get involved in client side stuff as well. Custom tags give us a technology that can do lots of the grunt work for us, but deciding what those tags should do will be very interesting. Bob Craig McClanahan
struts portability.
Hi , I just bumped on to project where I had a code base working with0.5 version of Struts. After replacing with 1.0 i discovered there were quite a bunch of chages like. 1)ValidatingActionForm --changed from Interface to class. 2)Methods of ActionBase changed thier signatures. eg: 1)getResources 2)saveErrors. Can we assume thebackWord compatiblity of 1.0when we have futureversions. T, Peri
Re: component project rebuild / updating
Maya Muchnik wrote: Hello, Cedric, I have got your *zip file maybe one week ago. Do you update it and how often? Does it depend on the struts updating? Thanks, Struts binary distributions are created every night, and reflect whatever changes in the code and/or documentation have been made that day. Recently, that's been quite a lot as we approach a 1.0 beta release. As betas (and the final release) are created, they will remain stable -- and obviously will not reflect the day-to-day changes. Subscribers to the STRUTS-DEV list receive a mail message on every CVS code commit that is done, which documents the actual changes being made as they happen. Yesterday, for example, the html:img and html:image tags were updated so that you could grab the image source and/or the alternate text out of your internationalized resources, instead of having to hard code them. This change showed up in last night's distribution files. Maya Craig
Re: struts portability.
Peri Srinivas wrote: Hi , I just bumped on to project where I had a code base working with 0.5 version of Struts. After replacing with 1.0 i discovered there were quite a bunch of chages like. 1)ValidatingActionForm --changed from Interface to class. 2)Methods of ActionBase changed thier signatures. eg: 1)getResources 2)saveErrors. Can we assume the backWord compatiblity of 1.0 when we have future versions.T,Peri To the maximum degree possible, you should be able to count on backwards compatibility within the 1.x family. That is why the extensive changes between 0.5 and 1.0 were made now, *before* the 1.0 final release. Craig McClanahan
RE: struts portability.
Backward compatibility is an ongoing priority from 1.0 out. The idea, as I have understood it, has been to makeas many non-backward compatible changes as possible before the 1.0 release to help alleviate the need for them later. -Original Message-From: Peri Srinivas [mailto:[EMAIL PROTECTED]]Sent: Tuesday, February 20, 2001 1:41 PMTo: [EMAIL PROTECTED]Subject: struts portability. Hi , I just bumped on to project where I had a code base working with0.5 version of Struts. After replacing with 1.0 i discovered there were quite a bunch of chages like. 1)ValidatingActionForm --changed from Interface to class. 2)Methods of ActionBase changed thier signatures. eg: 1)getResources 2)saveErrors. Can we assume thebackWord compatiblity of 1.0when we have futureversions. T, Peri
Re: AW: Re: AW: Struts on IPlanet
Oliver, Is there any chance that you could phrase this as a how-to? [EMAIL PROTECTED] wrote: -- Original Nachricht -- Oliver, For the installation page, I just entered for iPlanet Application Server 6.0 Service Pack 2 is recommended. == In a week I will know if that will fix our problems concerning the Servlet2.2 incompatibility NOTE: At present, the Struts example application still uses a non-Serializable servlet context attribute, and will not run in an environment that requires them, like iPlanet Application Server. == you have to deploy the Servlet as non distributable and then it works with SP1, too For iPlanet Web Server 4.2 I added Stanley Santiago's notes from http://www.mail-archive.com/struts-user@jakarta.apache.org/msg00022.html Is this sufficient? Should we include your workaround(s) for Service Pack 1 ? == You have to, not especially this one, but one that fixes the getServletPath()-Problem. Are these them? == Yes, it works and I like STRUTS. We did not use all the Tags yet but it runs... http://www.mail-archive.com/struts-user@jakarta.apache.org/msg01992.html == This one is cheap but the most important one http://www.mail-archive.com/struts-user@jakarta.apache.org/msg02011.html
Re: database locks.. (OT)
The usual thing to check for are: Are you using the database conneciton pool? Are you closing your database connection? Do use you transactions at all? Do you commit your work? Do you have autocommit turned on? Anand Raman wrote: I am trying to implement a multi page form and in some scenario the application is hanging because of a database lock which is not going away after some DML.
Re: help! confused over forms and errors and oooh, other stuff :-)
Can nobody give me a clue as to whether I've missed something here? I have
to do a 'show and tell' session on friday where we probably will be deciding
whether to use struts as the basis of future developments. If I'm going to
have to branch away from struts to handle these issues, so be it, but I'd
rather hope they were handled somewhere. Worst case scenario is that we
don't use struts at all.
Regards
Ned
- Original Message -
From: "Ned Seagoon" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, February 20, 2001 11:47 AM
Subject: help! confused over forms and errors and oooh, other stuff :-)
Hi Guys,
I wonder if you could help me out a little please? I am in the middle of
developing a proof of concept app with struts. If this comes off the
company
could migrate away from a proprietary framework to struts, which I am in
favour of.
I seem to have confused myself over an issue regarding validation and
forms.
Ill give a simplified workflow as an example.
We have for all intents and purposes a generated product overview page
along
these lines:
*Wooden Throat Mallet59.95 buy
*Leather Uncle Frightener12.60 buy
*Vandal-Proof Toupee 99.99 buy
Which is generated from struts tags. The buys are links to a pages which
look something like buyit.do?itemid=50. The buyit.do action has
registered
a form in request scope. During processing, it looks up the full details
of
the itemid and places the resulting bean in request scope. It then creates
the form object, populates it with some default information and sets this
in
the request too before forwarding onto buypage.jsp
This displays the details of the item, and contains a form for entering,
say, credit card details:
*Item: Vandal-Proof Toupee
*Manufacturer: Lockheed-Martin Advanced Hairpiece Research
*Price: 99.99
*Additional Information: Also Invisible to Radar
*
* Inside Leg Measurement: _
* Credit Card Number:
* BUY {forwards onto checkout.do}
Which is all fine and dandy and displays correctly. Though what happens if
the form validate fails? If checkout.do has an input attribute which is
buypage.jsp then this will fail because the item details are stored on the
request has not been set up (it was done in buyit.do). I could of course
set the item details on the session, but if the user opened new browser
windows for the buyit link, then the session level object will be
overwritten.
If have looked into placing the details object onto the form bean as it is
populated, but will that property be preserved across a validate failing?
And how do I get at the properties of the form bean outside of the
hmtl:xxx tags?
Help !
Regards
Ned
_
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
RE: help! confused over forms and errors and oooh, other stuff :-)
You can access the properties of the form bean by using jsp:bean or just do
%
// if the bean was submitted in request scope.
formBean asdf = request.getAttribute("the key you used - or name attribute
of youe struts form tag.");
%
even if the validation failse and you used request, your bean properties
will be preserved.
Thank you.
Jason H. Kim
Quatrix Emerging Technology Team
Phone: 314-993-5858 EXT: 137
-Original Message-
From: Ned Seagoon [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 20, 2001 5:48 AM
To: [EMAIL PROTECTED]
Subject: help! confused over forms and errors and oooh, other stuff :-)
Hi Guys,
I wonder if you could help me out a little please? I am in the middle of
developing a proof of concept app with struts. If this comes off the company
could migrate away from a proprietary framework to struts, which I am in
favour of.
I seem to have confused myself over an issue regarding validation and forms.
Ill give a simplified workflow as an example.
We have for all intents and purposes a generated product overview page along
these lines:
*Wooden Throat Mallet59.95 buy
*Leather Uncle Frightener12.60 buy
*Vandal-Proof Toupee 99.99 buy
Which is generated from struts tags. The buys are links to a pages which
look something like buyit.do?itemid=50. The buyit.do action has registered
a form in request scope. During processing, it looks up the full details of
the itemid and places the resulting bean in request scope. It then creates
the form object, populates it with some default information and sets this in
the request too before forwarding onto buypage.jsp
This displays the details of the item, and contains a form for entering,
say, credit card details:
*Item: Vandal-Proof Toupee
*Manufacturer: Lockheed-Martin Advanced Hairpiece Research
*Price: 99.99
*Additional Information: Also Invisible to Radar
*
* Inside Leg Measurement: _
* Credit Card Number:
* BUY {forwards onto checkout.do}
Which is all fine and dandy and displays correctly. Though what happens if
the form validate fails? If checkout.do has an input attribute which is
buypage.jsp then this will fail because the item details are stored on the
request has not been set up (it was done in buyit.do). I could of course
set the item details on the session, but if the user opened new browser
windows for the buyit link, then the session level object will be
overwritten.
If have looked into placing the details object onto the form bean as it is
populated, but will that property be preserved across a validate failing?
And how do I get at the properties of the form bean outside of the
hmtl:xxx tags?
Help !
Regards
Ned
_
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
RE: help! confused over forms and errors and oooh, other stuff :-)
I don't know if I understand your question but would making the input
attribute of the action another action give you the opportunity to retrieve
data that the jsp form needs before the jsp is displayed? I have a form that
needs a drop down populated from the database before the form is displayed.
I can never go to the jsp form directly, I always reference the action that
gets the data needed by the jsp. The action returns a forward which forwards
to the jsp with redirect="false".
Hal
-Original Message-
From: Ned Seagoon [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 20, 2001 6:06 PM
To: [EMAIL PROTECTED]
Subject: Re: help! confused over forms and errors and oooh, other stuff
:-)
Can nobody give me a clue as to whether I've missed something here? I have
to do a 'show and tell' session on friday where we probably will be deciding
whether to use struts as the basis of future developments. If I'm going to
have to branch away from struts to handle these issues, so be it, but I'd
rather hope they were handled somewhere. Worst case scenario is that we
don't use struts at all.
Regards
Ned
- Original Message -
From: "Ned Seagoon" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, February 20, 2001 11:47 AM
Subject: help! confused over forms and errors and oooh, other stuff :-)
Hi Guys,
I wonder if you could help me out a little please? I am in the middle of
developing a proof of concept app with struts. If this comes off the
company
could migrate away from a proprietary framework to struts, which I am in
favour of.
I seem to have confused myself over an issue regarding validation and
forms.
Ill give a simplified workflow as an example.
We have for all intents and purposes a generated product overview page
along
these lines:
*Wooden Throat Mallet59.95 buy
*Leather Uncle Frightener12.60 buy
*Vandal-Proof Toupee 99.99 buy
Which is generated from struts tags. The buys are links to a pages which
look something like buyit.do?itemid=50. The buyit.do action has
registered
a form in request scope. During processing, it looks up the full details
of
the itemid and places the resulting bean in request scope. It then creates
the form object, populates it with some default information and sets this
in
the request too before forwarding onto buypage.jsp
This displays the details of the item, and contains a form for entering,
say, credit card details:
*Item: Vandal-Proof Toupee
*Manufacturer: Lockheed-Martin Advanced Hairpiece Research
*Price: 99.99
*Additional Information: Also Invisible to Radar
*
* Inside Leg Measurement: _
* Credit Card Number:
* BUY {forwards onto checkout.do}
Which is all fine and dandy and displays correctly. Though what happens if
the form validate fails? If checkout.do has an input attribute which is
buypage.jsp then this will fail because the item details are stored on the
request has not been set up (it was done in buyit.do). I could of course
set the item details on the session, but if the user opened new browser
windows for the buyit link, then the session level object will be
overwritten.
If have looked into placing the details object onto the form bean as it is
populated, but will that property be preserved across a validate failing?
And how do I get at the properties of the form bean outside of the
hmtl:xxx tags?
Help !
Regards
Ned
_
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
Display Table using Iterate Tag
Hello all, I am new to the JSP and Struts framework. How can I use the Iterate tag to display a few rows of the Database table? I am storing the rows as a vector of vectors. Has anyone tried using Iterate tag for similar stuff? Thanks, Harish.
Re: Template tags?
Andrew Boyko wrote: during this process. First off, the web pages we will be creating will have a common navigation bar used across the whole web site. It would be great if we can create one HTML file called navigation.jsp which all pages use. If that's the only common element on the pages, you can do that using the JSP include tags, pulling in the common nav bar within each content page. True, but templates are so much cooler. ;-) The template tags (as we've been using them, at least) support a somewhat different model: your content pages push their specific content into common templates, which place the content into regions of the template. This allows you to have standard headers, footers, or any other common content and layout without the content pages needing to know or care what the standard layout is; it also allows you to redesign the template, potentially completely re-ordering the content presentation, without changing the content pages at all. Another benefit is that templates encourage you to divide your JSP pages into reusable components, although the same could be said of jsp:include. We've introduced the template tags to both java coders and HTML authors, and all found it easy to understand and like, and quite powerful. Amen. It seems that the struts template taglibs might be the solution, unfortunately the 0.5 version of struts we downloaded does not contain these taglibs. In my experience, cvs or nightly builds have been solid for a long while, and have been quite safe for development, not only for the template tags, but for the entire library. Templates are in Struts to stay. david
