Problem with huge session memory and ActionForm
Hi all, We have detected a problem with the amount of memory we use in the session when we use classes extending org.apache.struts.action.ActionForm and DynaActionForm too. We are using 9iAS 9.0.3. We take a look to the memory using JPRobe profiler, and we see that the forms stored in session (we define the scope to session in struts-config.xml for an action) are using more than 20Mb(!!) Those actionForms have a reference to ActionServlet in servlet attribute. Of course, this is a lot of memory to have several hundreds of users. I imagine this is not a Struts bug, and please help us to detect what´s happening or which is the error in our code. Thanks a lot. Jose R. E-mail: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Editorial Aranzadi: www.aranzadi.es http://www.aranzadi.es Camino de Galar, 15 31190- Cizur Menor - SPAIN Tlfno.: +34 948 297297 Fax: +34 948 297200 __ Este e-mail y cualquier documento anexo contienen información privada y confidencial única y exclusivamente para el destinatario. Si usted no es el destinatario, no tiene autorización para leer, copiar, usar o distribuir el e-mail y el/los documento anexos. En caso de haber recibido esta comunicación por error, le rogamos que lo remita al emisor y lo destruya posteriormente. This e-mail and any attachment contain information, which is private and confidential and is intended for the addressee only. If you are not an addressee, you are not authorized to read, copy, use or distribute this communication. If you have received this e-mail in error, please notify the sender by return e-mail. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Problem with huge session memory and ActionForm
Thanks Shirish. That´s the solution we are trying now, but I still don´t understand why an ActionForm has a reference to the ActionServlet. Does anybody know, please? Or am I missing something? thanks! -Mensaje original- De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Enviado el: miércoles, 28 de enero de 2004 14:35 Para: [EMAIL PROTECTED]; [EMAIL PROTECTED] Asunto: RE: Problem with huge session memory and ActionForm Why not change those forms to request scope instead?Where ever feasible I mean.If any data is not shared across pages in a wizard like flow, just put that form in request.This should be applicable to 90% of the cases. But It may not be as simple as that.You may have to retest entire application because of that. HTH. regards, Shirish -Original Message- From: Jose Ramon Diaz [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 28, 2004 1:48 PM To: 'Struts Users Mailing List' Subject: Problem with huge session memory and ActionForm Hi all, We have detected a problem with the amount of memory we use in the session when we use classes extending org.apache.struts.action.ActionForm and DynaActionForm too. We are using 9iAS 9.0.3. We take a look to the memory using JPRobe profiler, and we see that the forms stored in session (we define the scope to session in struts-config.xml for an action) are using more than 20Mb(!!) Those actionForms have a reference to ActionServlet in servlet attribute. Of course, this is a lot of memory to have several hundreds of users. I imagine this is not a Struts bug, and please help us to detect what´s happening or which is the error in our code. Thanks a lot. Jose R. E-mail: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Editorial Aranzadi: www.aranzadi.es http://www.aranzadi.es Camino de Galar, 15 31190- Cizur Menor - SPAIN Tlfno.: +34 948 297297Fax: +34 948 297200 __ Este e-mail y cualquier documento anexo contienen información privada y confidencial única y exclusivamente para el destinatario. Si usted no es el destinatario, no tiene autorización para leer, copiar, usar o distribuir el e-mail y el/los documento anexos. En caso de haber recibido esta comunicación por error, le rogamos que lo remita al emisor y lo destruya posteriormente. This e-mail and any attachment contain information, which is private and confidential and is intended for the addressee only. If you are not an addressee, you are not authorized to read, copy, use or distribute this communication. If you have received this e-mail in error, please notify the sender by return e-mail. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Problem with huge session memory and ActionForm
Thanks Nico, But i´m surprised because the other transient objects we have in ActionForm (for example, a Category of log4j) aren´t showed by JProbe, but attribute servlet is showed and computed for memory. however our own transient attributes aren´t showed. May this be somethnig related to 9iAS more than related to Struts? Thanks! -Mensaje original- De: Nicolas De Loof [mailto:[EMAIL PROTECTED] Enviado el: miércoles, 28 de enero de 2004 15:13 Para: Struts Users Mailing List Asunto: Re: Problem with huge session memory and ActionForm ActionForm has this attribute : protected transient ActionServlet servlet All ActionForms share the same ActionServlet instance. As this attribute is transient, it will not be serialized if form is put in session (and session itself is serialized). So I think the session size is not well computed by JPRobe profiler, as every referenced objet are included in size computation, even if they're shared between objects or declared transient. A better way sould be to run the app without any session created, get JVM memory usage (mem1), then open N user sessions, and get JVM memory usage (mem2). (mem2 - mem1) / N is *real* session size. Nico. Why not change those forms to request scope instead?Where ever feasible I mean.If any data is not shared across pages in a wizard like flow, just put that form in request.This should be applicable to 90% of the cases. But It may not be as simple as that.You may have to retest entire application because of that. HTH. regards, Shirish -Original Message- From: Jose Ramon Diaz [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 28, 2004 1:48 PM To: 'Struts Users Mailing List' Subject: Problem with huge session memory and ActionForm Hi all, We have detected a problem with the amount of memory we use in the session when we use classes extending org.apache.struts.action.ActionForm and DynaActionForm too. We are using 9iAS 9.0.3. We take a look to the memory using JPRobe profiler, and we see that the forms stored in session (we define the scope to session in struts-config.xml for an action) are using more than 20Mb(!!) Those actionForms have a reference to ActionServlet in servlet attribute. Of course, this is a lot of memory to have several hundreds of users. I imagine this is not a Struts bug, and please help us to detect what´s happening or which is the error in our code. Thanks a lot. Jose R. E-mail: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Editorial Aranzadi: www.aranzadi.es http://www.aranzadi.es Camino de Galar, 15 31190- Cizur Menor - SPAIN Tlfno.: +34 948 297297 Fax: +34 948 297200 __ Este e-mail y cualquier documento anexo contienen información privada y confidencial única y exclusivamente para el destinatario. Si usted no es el destinatario, no tiene autorización para leer, copiar, usar o distribuir el e-mail y el/los documento anexos. En caso de haber recibido esta comunicación por error, le rogamos que lo remita al emisor y lo destruya posteriormente. This e-mail and any attachment contain information, which is private and confidential and is intended for the addressee only. If you are not an addressee, you are not authorized to read, copy, use or distribute this communication. If you have received this e-mail in error, please notify the sender by return e-mail. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Cahin actions and GZIP filter
Thanks Mike, but I´m using Oracle 9iAS. Anyway, I know it uses Apache as webserver, so I´m goint to look for this mod, if it hasn´t been deleted in Oracle version oh http server. -Mensaje original- De: Mainguy, Mike [mailto:[EMAIL PROTECTED] Enviado el: viernes, 12 de diciembre de 2003 18:37 Para: 'Struts Users Mailing List' Asunto: RE: Cahin actions and GZIP filter Just as a side note, if you are using apache as a web server, you could also just turn on the mod_deflate or mod_gzip in apache and not have to screw around the the filter in your servlet engine. Kmart Tech News news://uskihsvtfinsys The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance. -Original Message- From: Jose Ramon Diaz [mailto:[EMAIL PROTECTED] Sent: Friday, December 12, 2003 2:26 AM To: 'Struts Users Mailing List' Subject: Cahin actions and GZIP filter Hello, I´m trying to use a filter to compress my application using GZIP. I have read: http://www.javaworld.com/javaworld/jw-06-2001/jw-0622-filters-p3.html and it seems to work except when I chain actions. It uses a RequestWrapper for not writing the stream to the response. If I call one action which executes a forward to another action, I get te exception: java.io.IOException: Cannot flush a closed output stream at es.aranzadi.base.controller.CompressionResponseStream.flush(Co mpressionRespo nseStream.java:84) at es.aranzadi.base.controller.CompressionResponseWrapper.flushBu ffer(Compressi onResponseWrapper.java:38) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.ServletRequestDispatcher.forward(ServletRequ estDispatcher. java:244) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.GetParametersRequestDispatcher.forward(GetPa rametersReques tDispatcher.java:189) at org.apache.struts.action.RequestProcessor.doForward(RequestPro cessor.java:10 69) at org.apache.struts.action.RequestProcessor.processForwardConfig (RequestProces sor.java:455) at org.apache.struts.action.RequestProcessor.process(RequestProce ssor.java:279) at org.apache.struts.action.ActionServlet.process(ActionServlet.j ava:1482) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.ResourceFilterChain.doFilter(ResourceFilterC hain.java:65) at es.aranzadi.base.controller.CompressionFilter.doFilter(Compres sionFilter..jav a:67) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.ServletRequestDispatcher.invoke(ServletReque stDispatcher.j ava:560) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.ServletRequestDispatcher.forwardInternal(Ser vletRequestDis patcher.java:306) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.HttpRequestHandler.processRequest(HttpReques tHandler.java: 767) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.HttpRequestHandler.run(HttpRequestHandler.java:259) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.HttpRequestHandler.run(HttpRequestHandler.java:106) at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(Poo ledExecutor.ja va:803) at java.lang.Thread.run(Thread.java:484) Why the stream is closed? My application never colses the response stream. Can anybody help me? Jose R. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - This message and its contents (to include attachments) are the property of Kmart Corporation (Kmart) and may contain confidential and proprietary information. You are hereby notified that any disclosure, copying, or distribution of this message, or the taking of any action based on information contained herein is strictly prohibited. Unauthorized use of information contained herein may subject you to civil and criminal prosecution and penalties. If you are not the intended recipient, you should delete this message immediately. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Cahin actions and GZIP filter
Hello, I´m trying to use a filter to compress my application using GZIP. I have read: http://www.javaworld.com/javaworld/jw-06-2001/jw-0622-filters-p3.html and it seems to work except when I chain actions. It uses a RequestWrapper for not writing the stream to the response. If I call one action which executes a forward to another action, I get te exception: java.io.IOException: Cannot flush a closed output stream at es.aranzadi.base.controller.CompressionResponseStream.flush(CompressionRespo nseStream.java:84) at es.aranzadi.base.controller.CompressionResponseWrapper.flushBuffer(Compressi onResponseWrapper.java:38) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher. java:244) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.GetParametersRequestDispatcher.forward(GetParametersReques tDispatcher.java:189) at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:10 69) at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProces sor.java:455) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65) at es.aranzadi.base.controller.CompressionFilter.doFilter(CompressionFilter.jav a:67) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.j ava:560) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDis patcher.java:306) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java: 767) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.HttpRequestHandler.run(HttpRequestHandler.java:259) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.HttpRequestHandler.run(HttpRequestHandler.java:106) at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.ja va:803) at java.lang.Thread.run(Thread.java:484) Why the stream is closed? My application never colses the response stream. Can anybody help me? Jose R. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [OT] Stress Test
Hi, Is there any way to get the URLs automatically? I mean, how can we obtain the URL navigating through the application? If we need to do a string test, we will nedd dozens of URLs, with a lot of parameters, and even we use frames, so the number of URLs grows... Thanks a lot... Jose R. Díaz -Mensaje original- De: Jerry Jalenak [mailto:[EMAIL PROTECTED] Enviado el: lunes, 24 de noviembre de 2003 16:56 Para: 'Struts Users Mailing List' Asunto: RE: [OT] Stress Test David, Nothing. Nada. Zip. ZIlch. The logs show basically no response; from the client perspective the web app simply stops responding. I suspect I've either got a memory leak, or a database connectivity issue. Hopefully I can stress test this thing enough today to identify where in the code it fails. Once I know where it fails I should be able to fix it. Jerry Jalenak Development Manager, Web Publishing LabOne, Inc. 10101 Renner Blvd. Lenexa, KS 66219 (913) 577-1496 [EMAIL PROTECTED] -Original Message- From: David Friedman [mailto:[EMAIL PROTECTED] Sent: Monday, November 24, 2003 9:52 AM To: Struts Users Mailing List Subject: RE: [OT] Stress Test So after 6 hours, what do your log files (web server and java application server) show? Do they show struts actions being performed? Does it show out of memory errors? Anything like that? Regards, David -Original Message- From: Jerry Jalenak [mailto:[EMAIL PROTECTED] Sent: Monday, November 24, 2003 10:05 AM To: '[EMAIL PROTECTED]' Subject: [OT] Stress Test Hi All, I've got a problem with my current web app where it stops responding after about 6 hours. I need to set up a test environment and simulate multiple logon's so I can trap my way through the code and figure out where it is failing. I think there is a tool available that can be used to do this - HTTPerf (I think), but I'm not sure if this will do what I want. Does anyone have any experience with this? Thanks. Jerry Jalenak Development Manager, Web Publishing LabOne, Inc. 10101 Renner Blvd. Lenexa, KS 66219 (913) 577-1496 [EMAIL PROTECTED] This transmission (and any information attached to it) may be confidential and is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient or the person responsible for delivering the transmission to the intended recipient, be advised that you have received this transmission in error and that any use, dissemination, forwarding, printing, or copying of this information is strictly prohibited. If you have received this transmission in error, please immediately notify LabOne at the following email address: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] This transmission (and any information attached to it) may be confidential and is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient or the person responsible for delivering the transmission to the intended recipient, be advised that you have received this transmission in error and that any use, dissemination, forwarding, printing, or copying of this information is strictly prohibited. If you have received this transmission in error, please immediately notify LabOne at the following email address: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Help with framesets
I think the framesStruts question is a bit more complicated. I write here what I told in another message several days ago. (nobody tells me what they think... so I continue posting it... :) if you use frames, please tell me what you think) Imagine if one action may load the same frame set but you have to load hundred of different pages inside each frame. We use Frames in our application. We have had this problem a we use different approach. We suppose the form data is ONLY needed for the action, so the action executes and change the model as needed. The action decides which is the next page, and if it can have frames it sets a variable next in session, which indicates what the frames that must be loades in this way: Every frame in frameset is redirected to an special action frames.do with two parameters: the place where the frame is loaded and the next variable. For example: frameset ID=vis cols=261,* border=0 framespacing=1 frame name=bottomLeft src=frames.do?position=frameBottomaction=session:attribute name=next/ frame name=bottomRight src=frames.do?position=frameTopaction=session:attribute name=next/ /frameset And we have implemented the frames.do action to know which JSP must be loaded, with parameters position and next. In fact, the page that must be loaded is written in struts-config.xml in this way: action path=/frames type=package.FramesAction name=framesForm scope=request forward name=frameTop-next1 contextRelative=true path=/WEB-INF/jsp/jsp1.jsp/ forward name=frameTop-next2 contextRelative=true path=/WEB-INF/jsp/jsp2.jsp/c So the frames.do makes a forward to the String created with position+next (the two parameter of frames.do) and we can establish the JSP in the xml file... Regards Jose R. Diaz - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Session Times Out
Hi,
But be carefull because the actions will be executed before redirecting to
JSP, so I think it?s better to check the session in all the actions, isn?t
it?
Make a custom tag like so :
Create a tld file with this in it :
?xml version=1.0 encoding=ISO-8859-1 ?
!DOCTYPE taglib PUBLIC -//Sun Microsystems, Inc.//DTD JSP
Tag Library
1.1//EN http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd;
taglib
tlibversion1.0/tlibversion
jspversion1.1/jspversion
shortnameTag Libs/shortname
infoustom Tags/info
tag
namecheckLogin/name
tagclasscom.cpaglobal.cpadirect.tag.CheckLogin/tagclass
bodycontentempty/bodycontent
infoChecks the login status of a user and
forward them to the
login page if not logged in./info
attribute
nameloginPage/name
requiredfalse/required
rtexprvaluefalse/rtexprvalue
/attribute
attribute
namedefault/name
requiredfalse/required
rtexprvaluefalse/rtexprvalue
/attribute
/tag
/taglib
Code for the custom tag :
package com.cpaglobal.cpadirect.tag;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpSession;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;
import com.cpaglobal.cpadirect.applicationlogic.SessionVariables;
import com.cpaglobal.cpadirect.applicationlogic.User;
public class CheckLogin extends TagSupport {
private String loginPage = /JSP/Timeout.jsp;
public void setLoginPage(String loginPage) {
this.loginPage = loginPage;
}
public int doStartTag() throws JspException {
return (SKIP_BODY);
}
public int doEndTag() {
try {
HttpSession session = pageContext.getSession();
if (session != null) {
User user = (User)
session.getAttribute(SessionVariables.SESSION_LOGGED_ON_USER);
if (user == null) {
pageContext.forward(loginPage);
return (SKIP_PAGE);
}
} else {
pageContext.forward(loginPage);
return (SKIP_PAGE);
}
} catch(ServletException e) {
new JspException(e.toString());
} catch(IOException e) {
new JspException(e.toString());
}
return (EVAL_PAGE);
}
}
How to use it :
%@ taglib uri=/WEB-INF/cpa.tld prefix=cpa%
cpa:checkLogin/
Mike
|-+
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| | 03/11/2003 06:23 |
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| | Please respond to|
| | Struts Users|
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-
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|
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| To: [EMAIL PROTECTED]
|
| cc:
|
| Subject: Session Times Out
|
-
-|
I check if session expires for each action in the
application. If the session times out, I forward the
user to index.jsp so that the user can log on again.
How do I inform the user with a message that he/she is
at the welcome page because the session has expired?
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RE: Struts1.1 Oracle 9iAS
Hi, We do NOT have any problem using Struts 1.1 with Oracle 9iAS 9.0.3. What kind of problems do you have? We have problems with 9iAS, but not related with Struts, else with the cluster,... -Mensaje original- De: Karr, David [mailto:[EMAIL PROTECTED] Enviado el: lunes, 03 de noviembre de 2003 17:32 Para: Struts Users Mailing List Asunto: RE: Struts1.1 Oracle 9iAS -Original Message- From: Tim Clotworthy [mailto:[EMAIL PROTECTED] I am saddled with having to re-implement a struts-based architecture designed to run on a Tomcat web container, to an Oracle 9iAS Release2 (Tomcat is out, end-of-discussion). Unfortunately, 9iAS support Struts1.0 framework, but does not seem to support the various Struts1.1 capabilities that our system already leverages, which include: 1) the RequestProcessor (specifically using ProcessRoles extension) 2) Tiles 3) LookupDispatchAction class 4) some other things.. If anyone else may be in a similarly unfortunate position, and can share any insights on how they either: 1) figured out how to get 9iAS Release2 to work with Struts1.1, Or else: 2) can share any insights on how they got around similar problems, it would be greatly appreciated. Thanks. First of all, what release of 9iAS are you using (9.0.2, 9.0.3, etc.)? When you say it doesn't support those features, what exactly do you mean? Are you getting particular error messages? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Statistic of user actions
Hi all, We need to log some actions that the user can do in our application. Only some of them, and if it has worked or not. Which can be the best way to create statistics? We are thibkg in servlet filters, so it´s not Struts scope. Or we have found Struts Action Invocation Framework (SAIF) (http://struts.sourceforge.net/saif/) which is integrated with Struts as a plugin. As we should need some session information to log who is the user, it may be more interesting, but I´m afraid it´s still in beta. (We are evaluating it now, I´ll tell you more...) Do you have an interesting thought abut this? Please, tell me is somebody has implemented something like this. Regards Jose R. E-mail: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Editorial Aranzadi: www.aranzadi.es http://www.aranzadi.es Camino de Galar, 15 31190- Cizur Menor - SPAIN Tlfno.: +34 948 297297 Fax: +34 948 297200 __ Este e-mail y cualquier documento anexo contienen información privada y confidencial única y exclusivamente para el destinatario. Si usted no es el destinatario, no tiene autorización para leer, copiar, usar o distribuir el e-mail y el/los documento anexos. En caso de haber recibido esta comunicación por error, le rogamos que lo remita al emisor y lo destruya posteriormente. This e-mail and any attachment contain information, which is private and confidential and is intended for the addressee only. If you are not an addressee, you are not authorized to read, copy, use or distribute this communication. If you have received this e-mail in error, please notify the sender by return e-mail. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Struts and frames: what about the request scope?
hi all, We use Frames in our application. We have had this problem a we use different approach. We suppose the form data is ONLY needed for the action, so the action executes and change the model as needed. The action decides which is the next page, and if it can have frames it sets a variable next in session, which indicates what the frames that must be loades in this way: Every frame in frameset is redirected to an special action frames.do with two parameters: the place where the frame is loaded and the next variable. For example: frameset ID=vis cols=261,* border=0 framespacing=1 frame name=bottomLeft src=frames.do?position=frameBottomaction=session:attribute name=next/ frame name=bottomRight src=frames.do?position=frameTopaction=session:attribute name=next/ /frameset And we have implemented the frames.do action to know which JSP must be loaded, with parameters position and next. In fact, the page that must be loaded is written in struts-config.xml in this way: action path=/frames type=package.FramesAction name=framesForm scope=request forward name=frameTop-next1 contextRelative=true path=/WEB-INF/jsp/jsp1.jsp/ forward name=frameTop-next2 contextRelative=true path=/WEB-INF/jsp/jsp2.jsp/ç So the frames.do makes a forward to the String created with position+next (the two parameter of frames.do) and we can establish the JSP in the xml file... Is this a complicated way of doing this? Sure,... above all because of my poor english :-) Regards Jose R. Díaz - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: DispatchAction forward issue
Hi,
so I must understand that it?s not possible to pass parameters in the
request beetwen chained actions, is it?
Is not there a way to change a parameter value of the request if both
actions use the same ActionForm? I want to modify one of the parameters in
the firs action, so second action (chained action) can see the change.
Although I know it may be a bad idea, I don?t have any other now!! :-(
Thks
-Mensaje original-
De: Andrew Hill [mailto:[EMAIL PROTECTED]
Enviado el: viernes, 12 de septiembre de 2003 13:39
Para: Struts Users Mailing List
Asunto: RE: DispatchAction forward issue
snip
For that, I put in my request the method parameter
/snip
No you didnt. You put in a method ATTRIBUTE. I saw you!
See:
snip
request.setAttribute(method, list);
/snip
What you want to do is something like the following:
ActionForward forward = actionMapping.findForward(do_edition);
String path = addParam(path,method,list);
return new ActionForward(path, forward.getRedirect() );
(btw: that should be a redirecting forward (unless you have a
very good
excuse for chaining actions - something that is considered a
bad idea in
general))
You addParam method might look something like:
public String addParam(String url, String parameter, String value)
{
return url + ( (url.indexOf(?)==-1) ? ? : ) +
parameter + = +
value;
}
-Original Message-
From: Nicolas Delsaux [mailto:[EMAIL PROTECTED]
Sent: Friday, 12 September 2003 19:28
To: [EMAIL PROTECTED]
Subject: DispatchAction forward issue
Hi, I'm using a dispatchaction for displaying/editing
objects, on which I
would like to do a forward, through an ActionForward, from an
other action.
For that, I put in my request the method parameter, that should be
interpreted (for what I know) by Struts, in ordeer to
determine the method
to call.
And, as you may guess, Struts does not see this mparameter
and send me the
following error message :
message Request[/list] does not contain handler parameter named method
How can I make Struts understand what I want ?
For your information, here are the involved code fragments :
struts-config.xml
action path=/list
type=com.ListAllFieldsAction
name=listAllAttributes
scope=request
validate=true
parameter=method/
action path=/edit_tree_object
type=com.EditTreeObjectAction
name=edit_tree_object
scope=request
validate=false
forward name=do_edition path=/list.do/
/action
And, in my EditTreeObjectAction, the execute method contains
the following
code :
request.setAttribute(method, list);
return actionMapping.findForward(do_edition);
Thanks in advance
--
Nicolas Delsaux
-
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RE: DispatchAction forward issue
Hi,
i have trid two ways, and both at the same time:
1) I have modified the form, and now the method reset() only executes or
not depending a boolean flag that the first action clears.
2) I set the attribute in the request with the same name that it comes from
the URL, I supposed that if the data is requested again of the URL it would
be settled right, but it doesn?t work.
I imagine only can be one object in the request with the same name. Is
the same request object in the first action and the second? or is it
recreated?
Thks
-Mensaje original-
De: Andrew Hill [mailto:[EMAIL PROTECTED]
Enviado el: viernes, 12 de septiembre de 2003 14:46
Para: Struts Users Mailing List
Asunto: RE: DispatchAction forward issue
Hmm.. You can try it with a non-redirecting action. Im not
sure how well it
will work though as there may still be the original method
parameter in the
request as well as the one you tack onto the url. Give it a
shot and see
how.
btw: you know that if you chain actions the form will get reset and
repopulated right?
-Original Message-
From: Jose Ramon Diaz [mailto:[EMAIL PROTECTED]
Sent: Friday, 12 September 2003 20:37
To: 'Struts Users Mailing List'
Subject: RE: DispatchAction forward issue
Hi,
so I must understand that it?s not possible to pass
parameters in the
request beetwen chained actions, is it?
Is not there a way to change a parameter value of the
request if both
actions use the same ActionForm? I want to modify one of the
parameters in
the firs action, so second action (chained action) can see the change.
Although I know it may be a bad idea, I don?t have any
other now!! :-(
Thks
-Mensaje original-
De: Andrew Hill [mailto:[EMAIL PROTECTED]
Enviado el: viernes, 12 de septiembre de 2003 13:39
Para: Struts Users Mailing List
Asunto: RE: DispatchAction forward issue
snip
For that, I put in my request the method parameter
/snip
No you didnt. You put in a method ATTRIBUTE. I saw you!
See:
snip
request.setAttribute(method, list);
/snip
What you want to do is something like the following:
ActionForward forward = actionMapping.findForward(do_edition);
String path = addParam(path,method,list);
return new ActionForward(path, forward.getRedirect() );
(btw: that should be a redirecting forward (unless you have a
very good
excuse for chaining actions - something that is considered a
bad idea in
general))
You addParam method might look something like:
public String addParam(String url, String parameter, String value)
{
return url + ( (url.indexOf(?)==-1) ? ? : ) +
parameter + = +
value;
}
-Original Message-
From: Nicolas Delsaux [mailto:[EMAIL PROTECTED]
Sent: Friday, 12 September 2003 19:28
To: [EMAIL PROTECTED]
Subject: DispatchAction forward issue
Hi, I'm using a dispatchaction for displaying/editing
objects, on which I
would like to do a forward, through an ActionForward, from an
other action.
For that, I put in my request the method parameter, that should be
interpreted (for what I know) by Struts, in ordeer to
determine the method
to call.
And, as you may guess, Struts does not see this mparameter
and send me the
following error message :
message Request[/list] does not contain handler parameter
named method
How can I make Struts understand what I want ?
For your information, here are the involved code fragments :
struts-config.xml
action path=/list
type=com.ListAllFieldsAction
name=listAllAttributes
scope=request
validate=true
parameter=method/
action path=/edit_tree_object
type=com.EditTreeObjectAction
name=edit_tree_object
scope=request
validate=false
forward name=do_edition path=/list.do/
/action
And, in my EditTreeObjectAction, the execute method contains
the following
code :
request.setAttribute(method, list);
return actionMapping.findForward(do_edition);
Thanks in advance
--
Nicolas Delsaux
-
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RE: Bad URL transformation with Opera Browser and frames
Hi Adam, Thanks, but it doesn´t work. Now I´m writing html:base/ in my jsp with the frames, but this is translated in this waay: base href=http://localhost:8988/application/WEB-INF/jsp/fsPage.jsp; So, the base tag is translated with directory information, And of course it doesn´t work. Why? Thanks in advance. -Mensaje original- De: Adam Hardy [mailto:[EMAIL PROTECTED] Enviado el: miércoles, 03 de septiembre de 2003 10:44 Para: Struts Users Mailing List Asunto: Re: Bad URL transformation with Opera Browser and frames Are you using the html:base/ tag in your page? It sounds like the browser is misinterpreting relative paths. Adam On 09/03/2003 08:19 AM Jose Ramon Diaz wrote: Hi all, I have an action frames.fo, which load a frame according to some arameters. It works rigth in explorer and Netscape, but when I load the URL in Opera browser, the pages URL of each frame is changed and it´s added the WEB-INF/jsp directory in the URL. I mean, for example, if the frameset is loaded in this page: http://loacalhost/application/frames.do?position=frameBottoma ction=default and in the source one frame is defined (and loaded in browser) in this way: frame name=bottomLeft marginwidth=0 marginheight=0 src=frames.do?posicion=frameBottomLeftaction=default scrolling=AUTO bordercolor=#66 frameborder=0 Opera browser gives the next error: Resource /application/WEB-INF/jsp/frames.do not found on this server I have all the JSPs inside WEB-INF directory to protect them. But I can´t imagine what´s the HTTP request Opera is doing. Why does it search for the JSP as if the URL contains WEB-INF directory? Can anybody help, please? Thanks Jose R. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- struts 1.1 + tomcat 4.1.27 + java 1.4.2 Linux 2.4.20 RH9 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Bad URL transformation with Opera Browser and frames
Hi all, I have an action frames.fo, which load a frame according to some arameters. It works rigth in explorer and Netscape, but when I load the URL in Opera browser, the pages URL of each frame is changed and it´s added the WEB-INF/jsp directory in the URL. I mean, for example, if the frameset is loaded in this page: http://loacalhost/application/frames.do?position=frameBottomaction=default and in the source one frame is defined (and loaded in browser) in this way: frame name=bottomLeft marginwidth=0 marginheight=0 src=frames.do?posicion=frameBottomLeftaction=default scrolling=AUTO bordercolor=#66 frameborder=0 Opera browser gives the next error: Resource /application/WEB-INF/jsp/frames.do not found on this server I have all the JSPs inside WEB-INF directory to protect them. But I can´t imagine what´s the HTTP request Opera is doing. Why does it search for the JSP as if the URL contains WEB-INF directory? Can anybody help, please? Thanks Jose R. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Support for automatic frames
Hello Ray, Well, you have to know somehow, or you could never get the application running in the first place. Seems like you need a method to know which frame to load what action into. Yes, that´s the reason why we create the frames.do action configured with an XML file as we said in our first message. How many levels of frames are you planning to use? We will use 3 level of frames, with 3 or 4 jsps which can be loaded into every different frame. this give us a quite high number of different posibilities. Is there a heirarchy to the frames relative to the actions that will be performed on them. Can a subframe in one frame invoke an action in s sibling subframe? There are actions whose target goes to the sibling frames, another targets go to the top frame and another action´s targets go to another frame (sibling or sublevel). Do you think the idea of a frames.do action is good way to help us to minimize the complexity of the frames? Remember our main problem is to redraw the framesets with the correct pages invoked, not to redirect an action which return a simple JSP to a specific frame. We will try to create this action to be generic for any application, and we won´t have problem to publish it. Thanks Jose R. David -Original Message- From: Jose Ramon Diaz [mailto:[EMAIL PROTECTED] Sent: Monday, February 24, 2003 11:18 PM To: 'Struts Users Mailing List' Subject: RE: Support for automatic frames Ray, But, imagine that with several action you must reload the top frameset, and in the subframes there are framesets again. How do you know which frame to load of it can be different for every action? As you say we have no problems when our action is redirected to a TARGET frame, but when the frameset itself is different under several action. (And in the framesets under the top frameset we have not the original request!) Thanks Jose R. -Mensaje original- De: Ray Madigan [mailto:[EMAIL PROTECTED] Enviado el: 24 de febrero de 03 19:10 Para: Struts Users Mailing List; [EMAIL PROTECTED] Asunto: RE: Support for automatic frames Im not sure i understand what you are trying to accomplish. I have a struts application that uses frames and i can populate multiple frames from one frame when the user clicks or even mouseover an area of the screen. The action to cause a frame event trigger to fire carries arguments so the action can be specific to the location on the frame and what frame generated the action. Is this what you mean? Thanks RayM -Original Message- From: Jose Ramon Diaz [mailto:[EMAIL PROTECTED] Sent: Monday, February 24, 2003 3:02 AM To: [EMAIL PROTECTED] Subject: Support for automatic frames Hi all, This is a a bit long question,... :-\ We are going to start a new project with Struts, and we HAVE TO use frames. So we have different approaches. Tha navigation is quite complex: same action can go to different frames, and different actions can go to the same frame, depending the place (the screen) we choose the action or the action itself. The main one is the next: 1) We think about one special action called frames.do which knows all the stuff with the frames composition. It would need two parameters: the position where it holds the frame, and the action is being executed. This action is setted in the original action in the session object. We are thinking to configure this action from an XML file, which would have the relacion between the action, the frame holder and the view returned (which can be another frameset calling frames.do for each frame). Would it be possible to validate this file with struts-config.xml, with the indicated forwards in the frames.do action? For example: This is the top frame, which can be loaded by several actions, so the sub-frames can be different on each call. frameset rows=68,* border=0 framespacing=0 frameborder=NO frame src=/prototipo01/frames.do?position=frameUpaction=session:attribute name=next/ name=menuPrincipal/ frame src=/prototipo01/frames.do?position=frameBottomaction=session:attribute name=next/ name=bottom/ /frameset The session attibute next would have been setted by the action with the name of the action. Plase, what do you think? Are we making a mess? Regards Jose Ramon Diaz, E-mail: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Editorial Aranzadi: www.aranzadi.es http://www.aranzadi.es/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional
Support for automatic frames
Hi all, This is a a bit long question,... :-\ We are going to start a new project with Struts, and we HAVE TO use frames. So we have different approaches. Tha navigation is quite complex: same action can go to different frames, and different actions can go to the same frame, depending the place (the screen) we choose the action or the action itself. The main one is the next: 1) We think about one special action called frames.do which knows all the stuff with the frames composition. It would need two parameters: the position where it holds the frame, and the action is being executed. This action is setted in the original action in the session object. We are thinking to configure this action from an XML file, which would have the relacion between the action, the frame holder and the view returned (which can be another frameset calling frames.do for each frame). Would it be possible to validate this file with struts-config.xml, with the indicated forwards in the frames.do action? For example: This is the top frame, which can be loaded by several actions, so the sub-frames can be different on each call. frameset rows=68,* border=0 framespacing=0 frameborder=NO frame src=/prototipo01/frames.do?position=frameUpaction=session:attribute name=next/ name=menuPrincipal/ frame src=/prototipo01/frames.do?position=frameBottomaction=session:attribute name=next/ name=bottom/ /frameset The session attibute next would have been setted by the action with the name of the action. Plase, what do you think? Are we making a mess? Regards Jose Ramon Diaz, E-mail: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Editorial Aranzadi: www.aranzadi.es http://www.aranzadi.es/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Support for automatic frames
Ray, But, imagine that with several action you must reload the top frameset, and in the subframes there are framesets again. How do you know which frame to load of it can be different for every action? As you say we have no problems when our action is redirected to a TARGET frame, but when the frameset itself is different under several action. (And in the framesets under the top frameset we have not the original request!) Thanks Jose R. -Mensaje original- De: Ray Madigan [mailto:[EMAIL PROTECTED] Enviado el: 24 de febrero de 03 19:10 Para: Struts Users Mailing List; [EMAIL PROTECTED] Asunto: RE: Support for automatic frames Im not sure i understand what you are trying to accomplish. I have a struts application that uses frames and i can populate multiple frames from one frame when the user clicks or even mouseover an area of the screen. The action to cause a frame event trigger to fire carries arguments so the action can be specific to the location on the frame and what frame generated the action. Is this what you mean? Thanks RayM -Original Message- From: Jose Ramon Diaz [mailto:[EMAIL PROTECTED] Sent: Monday, February 24, 2003 3:02 AM To: [EMAIL PROTECTED] Subject: Support for automatic frames Hi all, This is a a bit long question,... :-\ We are going to start a new project with Struts, and we HAVE TO use frames. So we have different approaches. Tha navigation is quite complex: same action can go to different frames, and different actions can go to the same frame, depending the place (the screen) we choose the action or the action itself. The main one is the next: 1) We think about one special action called frames.do which knows all the stuff with the frames composition. It would need two parameters: the position where it holds the frame, and the action is being executed. This action is setted in the original action in the session object. We are thinking to configure this action from an XML file, which would have the relacion between the action, the frame holder and the view returned (which can be another frameset calling frames.do for each frame). Would it be possible to validate this file with struts-config.xml, with the indicated forwards in the frames.do action? For example: This is the top frame, which can be loaded by several actions, so the sub-frames can be different on each call. frameset rows=68,* border=0 framespacing=0 frameborder=NO frame src=/prototipo01/frames.do?position=frameUpaction=session:attribute name=next/ name=menuPrincipal/ frame src=/prototipo01/frames.do?position=frameBottomaction=session:attribute name=next/ name=bottom/ /frameset The session attibute next would have been setted by the action with the name of the action. Plase, what do you think? Are we making a mess? Regards Jose Ramon Diaz, E-mail: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Editorial Aranzadi: www.aranzadi.es http://www.aranzadi.es/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
javascript alert with the content of html:errors
Hi all,
I would like to get a javascript alert with the content of html:errors/,
so I tried this in the JSP:
...
script
alert('html:errors/');
/script
...
But the HTML code generatd is the following,
script
alert('MESSAGE OF HTML ERROR TAG
');
/script
So, it writes a \n at the end of the message, and the javascript fails.
I´ve seen org.apache.struts.taglib.html.ErrorsTag.java, and after every
message it writes \r\n and I don´t see any way to override this behaviour.
Should I change my struts source files? Is there any other way to get a
javascript alert with this content?
Would be interesting for this class to be able to write or not to write the
\n´s?
thanks a lot...
Jose R. Díaz
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RE: How to let a user click a column header to sort data in a tab le u sing struts?
It´s fantastic!! Is it free to use? -Mensaje original- De: Gemes Tibor [mailto:[EMAIL PROTECTED]] Enviado el: 15 de enero de 03 15:10 Para: Struts Users Mailing List Asunto: Re: How to let a user click a column header to sort data in a tab le u sing struts? 2003. január 15. 14:54 dátummal Thomas CORNET ezt írtad: Isn't it ? This is a friend of mine who has coded it, and it's working well. Check out the attachement. WOW! This works like a charm (thou I need some polishing on date handling). Is this copyrighted under public domain? Tib -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
