Problem with html:form enctype=multipart/form-data/
Hi again I have created multipart form html:form action=/upload enctype=multipart/form-data html:file property=theFile styleClass=form2/ html:submit/ /html:form When I submit it, I receive following exception: java.lang.ArrayIndexOutOfBoundsException at javax.servlet.http.MultipartHandler.readLine(MultipartHandler.java:139) at javax.servlet.http.MultipartHandler.readLine(MultipartHandler.java:103) at javax.servlet.http.MultipartHandler.gotoBoundary(MultipartHandler.java:160) at javax.servlet.http.MultipartHandler.nextPart(MultipartHandler.java:315) What do I wrong? thanks
URL links ActionServlet
Hallo, Firstly I would like to thank Ted Husted for all his help with me getting a better understanding of Struts, as I am a new to this area a lot of the information that I have found is great but not detailed enough to understand some of the process as what Ted has mentioned is perfect, thanks again Ted. OK the questions are still coming as follows. I am using Tomcate3.2.2 and runing of a localhost: In the example I am using I have the index.jsp page and in that I have two html links, one goes to get registered with the web application and the other is logon to the web application. If I click on logon this takes me to the logon.jsp page. When I client clicks on this as this is a .jsp this does not go to the actionservlet as that is not a .do action 'is that correct'? instead that just calls the viewer of logon.jsp??? or does this go direct to the JAVABEAN by passing the ActionServlet to get the logonform.java??? Now if the client clicks on the registation URL link on the index.jsp it comes back with a editregistration.do on the browser bar, in this case, as this is displaying the .do, does that mean that actually has been to the ActionServlet to JAVABEAN and comes back with the registration form display or does this just go to the viewer and retreives the registration.jsp form, with out going to the ActionServlet?? I understand that if the person sends a request 'A' to logon to the web application it needs to be a .do and needs to go to the ActionServlet 'B' I think that it goes the same with the registration as well. It is when they are asking for the forms to submit is where I don't know where they are stored or if they need to be retreived from the JSP viewer etc. Thanks for your time and I hope that can get another good response. Many thanks Ted and have a great day. Kind Regards Rodney Smith -- Sent through GMX FreeMail - http://www.gmx.net
A small Favour
Hi All, Could anybody help me to unsubscribe from your mailing list. I have tried atleast 3-4 times from http://jakarta.apache.org/struts but am still getting tons of mail. Thanks in advance. Regards Rohit -Original Message- From: Rodney Smith [mailto:[EMAIL PROTECTED]] Sent: Monday, August 06, 2001 4:30 PM To: [EMAIL PROTECTED] Subject: URL links ActionServlet Hallo, Firstly I would like to thank Ted Husted for all his help with me getting a better understanding of Struts, as I am a new to this area a lot of the information that I have found is great but not detailed enough to understand some of the process as what Ted has mentioned is perfect, thanks again Ted. OK the questions are still coming as follows. I am using Tomcate3.2.2 and runing of a localhost: In the example I am using I have the index.jsp page and in that I have two html links, one goes to get registered with the web application and the other is logon to the web application. If I click on logon this takes me to the logon.jsp page. When I client clicks on this as this is a .jsp this does not go to the actionservlet as that is not a .do action 'is that correct'? instead that just calls the viewer of logon.jsp??? or does this go direct to the JAVABEAN by passing the ActionServlet to get the logonform.java??? Now if the client clicks on the registation URL link on the index.jsp it comes back with a editregistration.do on the browser bar, in this case, as this is displaying the .do, does that mean that actually has been to the ActionServlet to JAVABEAN and comes back with the registration form display or does this just go to the viewer and retreives the registration.jsp form, with out going to the ActionServlet?? I understand that if the person sends a request 'A' to logon to the web application it needs to be a .do and needs to go to the ActionServlet 'B' I think that it goes the same with the registration as well. It is when they are asking for the forms to submit is where I don't know where they are stored or if they need to be retreived from the JSP viewer etc. Thanks for your time and I hope that can get another good response. Many thanks Ted and have a great day. Kind Regards Rodney Smith -- Sent through GMX FreeMail - http://www.gmx.net *Disclaimer* This mail and any accompanying documents contain confidential information intended for a specific individual and purpose. This information is private and protected by law. If you are not the intended recipient, you are hereby notified that any disclosure, copying or distribution, or the taking of any action based on the contents of this information, is strictly prohibited. Please let us know immediately if you have received this by mistake and appreciate if you could delete the original message.
Re: A small Favour
In particular, in order to remove yourself from struts mailing list, send an empty email to the following address [EMAIL PROTECTED] - Original Message - From: Rohit Dewangan [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, August 06, 2001 3:34 PM Subject: A small Favour Hi All, Could anybody help me to unsubscribe from your mailing list. I have tried atleast 3-4 times from http://jakarta.apache.org/struts but am still getting tons of mail. Thanks in advance. Regards Rohit -Original Message- From: Rodney Smith [mailto:[EMAIL PROTECTED]] Sent: Monday, August 06, 2001 4:30 PM To: [EMAIL PROTECTED] Subject: URL links ActionServlet Hallo, Firstly I would like to thank Ted Husted for all his help with me getting a better understanding of Struts, as I am a new to this area a lot of the information that I have found is great but not detailed enough to understand some of the process as what Ted has mentioned is perfect, thanks again Ted. OK the questions are still coming as follows. I am using Tomcate3.2.2 and runing of a localhost: In the example I am using I have the index.jsp page and in that I have two html links, one goes to get registered with the web application and the other is logon to the web application. If I click on logon this takes me to the logon.jsp page. When I client clicks on this as this is a .jsp this does not go to the actionservlet as that is not a .do action 'is that correct'? instead that just calls the viewer of logon.jsp??? or does this go direct to the JAVABEAN by passing the ActionServlet to get the logonform.java??? Now if the client clicks on the registation URL link on the index.jsp it comes back with a editregistration.do on the browser bar, in this case, as this is displaying the .do, does that mean that actually has been to the ActionServlet to JAVABEAN and comes back with the registration form display or does this just go to the viewer and retreives the registration.jsp form, with out going to the ActionServlet?? I understand that if the person sends a request 'A' to logon to the web application it needs to be a .do and needs to go to the ActionServlet 'B' I think that it goes the same with the registration as well. It is when they are asking for the forms to submit is where I don't know where they are stored or if they need to be retreived from the JSP viewer etc. Thanks for your time and I hope that can get another good response. Many thanks Ted and have a great day. Kind Regards Rodney Smith -- Sent through GMX FreeMail - http://www.gmx.net *Disclaimer* This mail and any accompanying documents contain confidential information intended for a specific individual and purpose. This information is private and protected by law. If you are not the intended recipient, you are hereby notified that any disclosure, copying or distribution, or the taking of any action based on the contents of this information, is strictly prohibited. Please let us know immediately if you have received this by mistake and appreciate if you could delete the original message.
RE: A small Favour
Thanks -Original Message- From: Pham Thanh Quan [mailto:[EMAIL PROTECTED]] Sent: Monday, August 06, 2001 4:51 PM To: [EMAIL PROTECTED] Subject: Re: A small Favour In particular, in order to remove yourself from struts mailing list, send an empty email to the following address [EMAIL PROTECTED] - Original Message - From: Rohit Dewangan [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, August 06, 2001 3:34 PM Subject: A small Favour Hi All, Could anybody help me to unsubscribe from your mailing list. I have tried atleast 3-4 times from http://jakarta.apache.org/struts but am still getting tons of mail. Thanks in advance. Regards Rohit -Original Message- From: Rodney Smith [mailto:[EMAIL PROTECTED]] Sent: Monday, August 06, 2001 4:30 PM To: [EMAIL PROTECTED] Subject: URL links ActionServlet Hallo, Firstly I would like to thank Ted Husted for all his help with me getting a better understanding of Struts, as I am a new to this area a lot of the information that I have found is great but not detailed enough to understand some of the process as what Ted has mentioned is perfect, thanks again Ted. OK the questions are still coming as follows. I am using Tomcate3.2.2 and runing of a localhost: In the example I am using I have the index.jsp page and in that I have two html links, one goes to get registered with the web application and the other is logon to the web application. If I click on logon this takes me to the logon.jsp page. When I client clicks on this as this is a .jsp this does not go to the actionservlet as that is not a .do action 'is that correct'? instead that just calls the viewer of logon.jsp??? or does this go direct to the JAVABEAN by passing the ActionServlet to get the logonform.java??? Now if the client clicks on the registation URL link on the index.jsp it comes back with a editregistration.do on the browser bar, in this case, as this is displaying the .do, does that mean that actually has been to the ActionServlet to JAVABEAN and comes back with the registration form display or does this just go to the viewer and retreives the registration.jsp form, with out going to the ActionServlet?? I understand that if the person sends a request 'A' to logon to the web application it needs to be a .do and needs to go to the ActionServlet 'B' I think that it goes the same with the registration as well. It is when they are asking for the forms to submit is where I don't know where they are stored or if they need to be retreived from the JSP viewer etc. Thanks for your time and I hope that can get another good response. Many thanks Ted and have a great day. Kind Regards Rodney Smith -- Sent through GMX FreeMail - http://www.gmx.net *Disclaimer* This mail and any accompanying documents contain confidential information intended for a specific individual and purpose. This information is private and protected by law. If you are not the intended recipient, you are hereby notified that any disclosure, copying or distribution, or the taking of any action based on the contents of this information, is strictly prohibited. Please let us know immediately if you have received this by mistake and appreciate if you could delete the original message. *Disclaimer* This mail and any accompanying documents contain confidential information intended for a specific individual and purpose. This information is private and protected by law. If you are not the intended recipient, you are hereby notified that any disclosure, copying or distribution, or the taking of any action based on the contents of this information, is strictly prohibited. Please let us know immediately if you have received this by mistake and appreciate if you could delete the original message.
Staging Pages/Action form question.
Hi Guys, I have the following scenarios and to design for and wanted to know how you approached the following problems: 1. I have a page that will have dynamically generated menus populated with entries from a database. My first question is how do you stage the pages? - can you use the action form to retrieve the information to populate the menus from the database ? I was thinking of using the action forms constructor to call an ejb to ultimately retrieve the information but didn't know whether this was the best way of approaching the problem. Do you guys have any suggestions? 2. I also have a search page where the user enters the search criteria and then submits the query, at this point I was going to put the search criteria on the session and have the results page pick up the search criteria, carry out the search and then display the results. How do you guys do this? If I was to use an action form for this in a manner similar to the above scenario the constructor would retrieve the search criteria from the session and execute the query thus 'staging' the page. Can the action form access the session? If not, how do you guys do it? Any help would be most appreciated. Thanks in advance, Simon. For optimum solutions that save you time, visit www.ds-s.com.
Please help ...canonical path error
can anyone please help explain why i get this error? (maximize window to see error) java.io.IOException: The filename, directory name, or volume label syntax is incorrectat java.io.File.getCanonicalPath(File.java:437) at org.apache.tomcat.util.FileUtil.safePath(FileUtil.java:184) at org.apache.tomcat.core.Context.getRealPath(Context.java:794)at org.apache.tomcat.request.StaticInterceptor.requestMap(StaticInterceptor.jav a:191) at org.apache.tomcat.core.ContextManager.processRequest(ContextManager.java:820 ) at org.apache.tomcat.facade.RequestDispatcherImpl.include(RequestDispatcherImpl .java:284) at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:414) at _0002fInstalmentsList_0002ejspInstalmentsList_jsp_6._jspService(_0002fInstal mentsList_0002ejspInstalmentsList_jsp_6.java:102) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja va:177) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:318) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:391)at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404) at org.apache.tomcat.core.Handler.service(Handler.java:286) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372) at org.apache.tomcat.facade.RequestDispatcherImpl.forward(RequestDispatcherImpl .java:194) at org.apache.struts.action.ActionServlet.processActionForward(ActionServlet.ja va:1758)at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1595) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:491) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404) at org.apache.tomcat.core.Handler.service(Handler.java:286) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79 7) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743) at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpC onnectionHandler.java:210) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Thread.java:484) ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **
html:select and html:options
Hello all, I these two lists: td bean:define name=erfassungForm id=names property=allProjektNamen / html:select property=projektname html:options collection=names property=value labelProperty=label / /html:select /td td bean:define name=erfassungForm id=aktivitaeten property=allProjekt_aktivitaeten / html:select property=aktivitaetname html:options collection=aktivitaeten property=value labelProperty=label / /html:select /td I want this: When I select one element in the list ... id=names ... the then the list ... id=aktivitaeten ... get elements, that are the activities from the element of the first list. Is there a way to call a action when I select a element? I hope you understand what I want. Is there any way to do this? Can someone help me? Best regards, STEFAN -- hmi-Informatik GmbH Zettachring 6 - D-70567 Stuttgart E-Mail: [EMAIL PROTECTED] http://www.hmi-informatik.de
RE: Building struts UIs
Kurt, Thanks for the info. I'll look ito DbForm. Will To: [EMAIL PROTECTED] kurt.mccaw@cecc: (bcc: Will Spies/Towers Perrin) ndec.com Subject: RE: Building struts UIs 08/02/01 09:19 AM Please respond to struts-user Will: Joachim Peer has an interesting project on the go called DbForm (www.dbform.org) that is 'based' on Stuts. You basically give it an XML file with table/field and some information regarding the field (size, data type, etc) and it will generate the JSP forms for you. It has the searching and sorting build into the generated application. I have only given this a cursory look as the main emphasis for this for this project was to use RDBMS Tables directly. My current project is using EJB's exclusively. There are suppose to be hooks to make DbForm use EJB's, but I have not looked closely enough at it. The other item is the project is based on Struts, but it does not use Struts directly. Integration with Struts is in Mr. Peer's 'To Do' List. I have had the same idea, that the generation of the GUI i.e. JSP could be automated (done when something in the XML metadata had changed), but I have not come across anything. So I too am looking at generating the GUI 'auto-magically' for a current project that I am working on. Regards, Kurt -Original Message- From: Will Spies/Towers Perrin [mailto:[EMAIL PROTECTED]] Sent: Thursday, August 02, 2001 6:01 AM To: [EMAIL PROTECTED] Subject: Building struts UIs I have a generic question. We use struts. Struts *really* doesn't help much with rapidly building UIs. I'm sure everyone here realizes this. I do not want to abandon struts, I've have had great experience with it but I also would like a way to build a mechanism to rapidly automatic the building of HTML forms. A brute force way would be to build my own meta-XML data and combine that with XSLT to generate HTML pages dynamically. But, before I go off an build anything I wanted to ask around first to see if anyone was doing the same thing, new of any open source tools, 3rd party tools, etc... Any info is appreciated and thanks in advance for any help, Will
Re: Building struts UIs
Jean, Thanks for the info. I'll take a look! Will To: [EMAIL PROTECTED] Jean-Noel Ribettecc: (bcc: Will Spies/Towers Perrin) [EMAIL PROTECTED]Subject: Re: Building struts UIs mprove.fr 08/02/01 02:21 PM Please respond to struts-user You might want to have a look at struts-layout (http://struts.application-servers.com) , a library my company is using for its struts development. It helps to build UIs very rapidly, especially UIs with forms and list of items. You still need to write JSPs but you don't need to write HTML code. Jean-Noel At 14:00 02/08/2001, you wrote: I have a generic question. We use struts. Struts *really* doesn't help much with rapidly building UIs. I'm sure everyone here realizes this. I do not want to abandon struts, I've have had great experience with it but I also would like a way to build a mechanism to rapidly automatic the building of HTML forms. A brute force way would be to build my own meta-XML data and combine that with XSLT to generate HTML pages dynamically. But, before I go off an build anything I wanted to ask around first to see if anyone was doing the same thing, new of any open source tools, 3rd party tools, etc... Any info is appreciated and thanks in advance for any help, Will
RE: struts training
Sign me up for the course! Where might I read about these points: ?? - preloading form - reset() method gotcha - special issues - cleaning up context variables - Back button sorrow - indexed properties and iterators If I knew that, I wouldn't need to design my own course. ;-) Devon
RE: Re: struts training
If you wanted to slim this down, and your goal is just to bring them up to speed on Struts, I'd hazard to say that there's much that a Struts developer doesn't ~really~ need to know about Web application development. Not sure I agree with this. My experience with Struts indicates that it is still not robust enough for this kind of thinking. I believe that a developer that doesn't have a reasonably deep understanding will become very frustrated very quickly. I can't tell you the number of times that I've had to dive into the source code to answer my questions. When errors occur, a stack trace is often all the help you get and that requires you to know the software structure intimately. Then there's the lack of solid documentation. One can't even buy a book about Struts yet to help answer questions. And the fact that the people I am teaching aren't native English speakers doesn't help either. They would find the volume on this list quite intimidating. I guess I would agree with you if there were one person in the group that knew Struts thoroughly and could help the others when problems arose. At the moment, that would be me. But I am only contracted here till the end of the year. After that, these guys need to be able to go it alone. And I think Struts still expects too much expertise and effort from the developer to be considered a tool for the average programmer. So my philosophy is to try to push them to be a bit beyond average. In any case, thanks for your comments. I will update my outline. Devon
Action Errors
Hello all, I did not find an example of the use of this ActionError method. If someone could point me to a good example or reply with one I would appreciate it. I just wasn't clear how the Object part of the method works. What object(s) can you use? How are they structured so they can replace values. How are those values to be replaced identified? Method: public ActionError(java.lang.String key, java.lang.Object value0) Construct an action error with the specified replacement values. Parameters: key - Message key for this error message value0 - First replacement value Thank you, Aaron
Validation a form
hi,
How can i validate a form?
I tried :
public ActionErrors validate(ActionMapping mapping, HttpServletRequest req)
{
ActionErrors errors= new ActionErrors();
if(! getSqlQuery().startsWith(select)){
ActionError error = new ActionError(error.requete);
errors.add(sqlQuery, error);
}
return errors;
}
it works when there is no error but not when i've one
Is there somebody with an idea?
Alexandre Duprat
SOPRA. Direction France Sud. Bordeaux
[EMAIL PROTECTED]
++
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++
RE: NoSuchMethodError with Weblogic 6.0 sp2
WebLogic includes a JAXP 1.0 implementation in its weblogic.jar file. The startup script puts weblogic.jar in the CLASSPATH ahead of anything in your WEB-INF/lib directory. So you will need to modify the startup script to put a JAXP 1.1 implementation ahead of weblogic.jar. -Original Message- From: Irene Hernández [mailto:[EMAIL PROTECTED]] Sent: Friday, August 03, 2001 4:26 PM To: struts-user Subject: NoSuchMethodError with Weblogic 6.0 sp2 Weblogic 6.0 fails when loading servlet action, it throws a NoSuchMethodError inside Digester.parse Any ideas? Irene
logic:iterate / html:option / scriptlet problem
Hi, the following fragment does not work: html:form action=addMedication.action td html:text property=doseAsInteger size=3/ /td td html:select property=dayCategory logic:iterate id=catEntry name=dayCategorys html:option value=%=catEntry% key=%= medication.daycategory. + catEntry%/ /logic:iterate /html:select /td /html:form whereas dayCategorys is a ArrayList containing Integers. The resulting HTML output look like this form name=medicationForm method=POST action=/HW/addMedication.action?sessionid=O26MPfpCQ2poVw7RkJzDahq8jR2Zg3soZpfx40N3f6g4KVo1qQEc|-786482589992354/168430344/6/7003/7003/7002/7002/7003/-1 td input type=text name=doseAsInteger size=3 value=0 /td td select name=dayCategoryhtml:option value=100024 key=medication.daycategory.100024/ html:option value=100025 key=medication.daycategory.100025/ html:option value=100026 key=medication.daycategory.100026//select /td /form which is correct apart from the fact that there is still a html:option ... rather than a simple option It seems that the html:option is not properly evaluated. Any hints? Thanks -- Tobias
Antwort: Validation a form
Did you enable validate=true in struts-config.xml for that action?
Regards -- Tobias
DUPRAT Alexandre [EMAIL PROTECTED]
06.08.2001 15:28
Bitte antworten an struts-user
An:'[EMAIL PROTECTED]' [EMAIL PROTECTED]
Kopie:
Thema:Validation a form
hi,
How can i validate a form?
I tried :
public ActionErrors validate(ActionMapping mapping, HttpServletRequest req)
{
ActionErrors errors= new ActionErrors();
if(! getSqlQuery().startsWith(select)){
ActionError error = new ActionError(error.requete);
errors.add(sqlQuery, error);
}
return errors;
}
it works when there is no error but not when i've one
Is there somebody with an idea?
Alexandre Duprat
SOPRA. Direction France Sud. Bordeaux
[EMAIL PROTECTED]
++
| Ce courrier ainsi que les fichiers joints sont confidentiels. |
| Si vous avez recu ce courrier par erreur, veuillez en informer |
| l'administrateur du systeme : [EMAIL PROTECTED]|
| - |
| Ce message confirme que le courrier a passe le controle|
| antivirus du relais de messagerie Internet avec succes.|
++
RE: Antwort: Validation a form
i have this int parameter in web.xml for ActionServlet :
init-param
param-namevalidate/param-name
param-valuetrue/param-value
/init-param
it seem to work cause i can debug the method in visula age for java.
I enter the method but i've an error 500 as response from my web server.
-Message d'origine-
De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Date: lundi 6 août 2001 16:14
À: [EMAIL PROTECTED]
Objet: Antwort: Validation a form
Did you enable validate=true in struts-config.xml for that action?
Regards -- Tobias
DUPRAT Alexandre [EMAIL PROTECTED]
06.08.2001 15:28
Bitte antworten an struts-user
An:'[EMAIL PROTECTED]'
[EMAIL PROTECTED]
Kopie:
Thema:Validation a form
hi,
How can i validate a form?
I tried :
public ActionErrors validate(ActionMapping mapping, HttpServletRequest req)
{
ActionErrors errors= new ActionErrors();
if(! getSqlQuery().startsWith(select)){
ActionError error = new
ActionError(error.requete);
errors.add(sqlQuery, error);
}
return errors;
}
it works when there is no error but not when i've one
Is there somebody with an idea?
Alexandre Duprat
SOPRA. Direction France Sud. Bordeaux
[EMAIL PROTECTED]
++
| Ce courrier ainsi que les fichiers joints sont confidentiels. |
| Si vous avez recu ce courrier par erreur, veuillez en informer |
| l'administrateur du systeme : [EMAIL PROTECTED] |
| - |
| Ce message confirme que le courrier a passe le controle|
| antivirus du relais de messagerie Internet avec succes.|
++
++
| Ce courrier ainsi que les fichiers joints sont confidentiels. |
| Si vous avez recu ce courrier par erreur, veuillez en informer |
| l'administrateur du systeme : [EMAIL PROTECTED] |
| - |
| Ce message confirme que le courrier a passe le controle |
| antivirus du relais de messagerie Internet avec succes. |
++
Antwort: RE: Antwort: Validation a form
Have a look in the WEB-INF/struts-config.xml. Look for your action element and in particluar for the validate attribute.
Regr
action path=/editRegistration
type=org.apache.struts.webapp.example.EditRegistrationAction
name=registrationForm
scope=request
validate=false
^^
forward name=success path=/registration.jsp/
/action
Hope this helps -- Tobias
DUPRAT Alexandre [EMAIL PROTECTED]
06.08.2001 16:26
Bitte antworten an struts-user
An:'[EMAIL PROTECTED]' [EMAIL PROTECTED]
Kopie:
Thema:RE: Antwort: Validation a form
i have this int parameter in web.xml for ActionServlet :
init-param
param-namevalidate/param-name
param-valuetrue/param-value
/init-param
it seem to work cause i can debug the method in visula age for java.
I enter the method but i've an error 500 as response from my web server.
-Message d'origine-
De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Date: lundi 6 août 2001 16:14
À: [EMAIL PROTECTED]
Objet: Antwort: Validation a form
Did you enable validate=true in struts-config.xml for that action?
Regards -- Tobias
DUPRAT Alexandre [EMAIL PROTECTED]
06.08.2001 15:28
Bitte antworten an struts-user
An:'[EMAIL PROTECTED]'
[EMAIL PROTECTED]
Kopie:
Thema:Validation a form
hi,
How can i validate a form?
I tried :
public ActionErrors validate(ActionMapping mapping, HttpServletRequest req)
{
ActionErrors errors= new ActionErrors();
if(! getSqlQuery().startsWith(select)){
ActionError error = new
ActionError(error.requete);
errors.add(sqlQuery, error);
}
return errors;
}
it works when there is no error but not when i've one
Is there somebody with an idea?
Alexandre Duprat
SOPRA. Direction France Sud. Bordeaux
[EMAIL PROTECTED]
++
| Ce courrier ainsi que les fichiers joints sont confidentiels. |
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Funny request parameters
We just upgraded our versions of WebLogic and Struts. WebLogic : 6.0 sp 2 == 6.1. Struts: 1.0 nightly build Feb ? 2001 == 1.0 Most things worked without a hitch, however we are experiencing a problem that I am having difficulty resolving. We have the following entries defined in struts_config.xml: !-- update buyer form bean -- form-bean name=updateBuyerForm type=net.ps.gui.user.UpdateBuyerForm/ !-- update buyer -- actionpath=/updateBuyer type=net.ps.gui.user.UpdateBuyerAction name=updateBuyerForm scope=request input=/pages/updateBuyer.jsp validate=false forward name=success path=/pages/updateBuyer.jsp/ forward name=failure path=/pages/updateBuyer.jsp/ forward name=securityErrorpath=/logoff/ /action The UpdateBuyer form has a step attribute with a getStep() and a setStep() method. The update buyer action is first invoked with the url ../cmd/updateBuyer?step=prepare. where /cmd/* is mapped to the struts action servlet. Everything works as expected. The updateBuyer jsp displays a form with a hidden property for step where the value is 'commit' html:form action=/cmd/updateBuyer html:hidden property=step value=commit/ ... html:submit bean:message key=button.submit/ /html:submit /html:form When the user fills in the form and pushes the submit button, the updateBuyer action is invoked and the step parameter in the HttpServletRequest object has two values 'prepare' and 'commit'. I would only expect one value (i.e., 'commit'). This behavior is consistent for all parameters that are passed in via the original url. Previously this code worked. Nowhere in the updateBuyer.jsp can 'prepare' be found. It is as if the request state from the previous request is being maintained across requests. Does anyone have an idea as to what might be occurring. Thanks in advance, Tony
Indexed tags problem
I am using the indexed tags (cheers, made my life a lot easier!) but I am having a problem. When submitting a form the data in the form is not updated. I have got updates working elsewhere, but I can't get this working. Is it because I use a nested property in the iterate tag i.e. getPerson().getPersonFields(); Cheers in advance Andy === JSP logic:iterate id=personField name=personFormproperty=person.personFields td html:text name=personField property=value indexed=true/ /td /logic:iterate === HTML produced td input type=text name=personField[0].value value=1000831 /td === struts-config.xml form-bean name=personForm type=forms.PersonForm/ !-- Action that retrieves details about a person -- actionpath=/person type=actions.PersonAction name=personForm scope=session input=/customerSearch.jsp forward name=success path=/personDetail.jsp/ /action !-- Action that stores details about a person -- actionpath=/storePerson type=actions.StorePersonAction name=personForm scope=session input=/personDetail.jsp forward name=cancel path=/customerSearch.jsp/ forward name=delete path=/customerSearch.jsp/ forward name=savepath=/personDetail.jsp/ /action Log action: Processing a POST for /storePerson action: Looking for ActionForm bean under attribute 'personForm' action: Recycling existing ActionForm bean instance of class 'forms.PersonForm' action: Populating bean properties from this request action: Validating input form properties action: No errors detected, accepting input action: Looking for Action instance for class actions.StorePersonAction action: Double checking for Action instance already there action: Creating new Action instance action: Saving customer - To send us encrypted mail, please refer to: http://www.millionhandshakes.com/emailpolicy/pgp.html Million Handshakes
RE: Re: struts training
I agree with Devon's concerns about this. Struts assumes a pretty robust understanding of the general principles of servlet and JSP programming (including the intricacies of a web application archive file). The good news for developers is that all of this level of knowledge is transferrable, because the underlying specs are used by *any* servlet and JSP environment, and the various app servers and servlet containers implement them (pretty much, and getting better :-) the same way. But you are going to be an unhappy camper if you don't know what load-on-startup does, or that you have to make session attributes thread safe, or how the /WEB-INF directory is organized, or ...). Craig On Mon, 6 Aug 2001 [EMAIL PROTECTED] wrote: If you wanted to slim this down, and your goal is just to bring them up to speed on Struts, I'd hazard to say that there's much that a Struts developer doesn't ~really~ need to know about Web application development. Not sure I agree with this. My experience with Struts indicates that it is still not robust enough for this kind of thinking. I believe that a developer that doesn't have a reasonably deep understanding will become very frustrated very quickly. I can't tell you the number of times that I've had to dive into the source code to answer my questions. When errors occur, a stack trace is often all the help you get and that requires you to know the software structure intimately. Then there's the lack of solid documentation. One can't even buy a book about Struts yet to help answer questions. And the fact that the people I am teaching aren't native English speakers doesn't help either. They would find the volume on this list quite intimidating. I guess I would agree with you if there were one person in the group that knew Struts thoroughly and could help the others when problems arose. At the moment, that would be me. But I am only contracted here till the end of the year. After that, these guys need to be able to go it alone. And I think Struts still expects too much expertise and effort from the developer to be considered a tool for the average programmer. So my philosophy is to try to push them to be a bit beyond average. In any case, thanks for your comments. I will update my outline. Devon
Re: A small Favour
On Mon, 6 Aug 2001, Rohit Dewangan wrote: Hi All, Could anybody help me to unsubscribe from your mailing list. I have tried atleast 3-4 times from http://jakarta.apache.org/struts but am still getting tons of mail. I'd like to help ... but there's a slight problem. There is no subscription to the list under [EMAIL PROTECTED] (or any variation of this that I can find). That means one of two things: * You subscribed under an alternate email address that is being forwarded to your same mailbox. In that case, you'll need to follow the directions in the mailing list info to unsubscribe from an alternate address. For instance, if I were to unsubscribe that way (I'm subscribed under [EMAIL PROTECTED]), I'd have to send mail to: [EMAIL PROTECTED] * Someone in your organization has subscribed an internal mailing list to STRUTS-USER, and the messages are being forwarded to you. If that's what is happening, there is nothing that we can do about it at the mailing list end -- you'll have to track it down yourself. Thanks in advance. Regards Rohit Craig McClanahan
Re: URL links ActionServlet
On Mon, 6 Aug 2001, Rodney Smith wrote: Hallo, Firstly I would like to thank Ted Husted for all his help with me getting a better understanding of Struts, as I am a new to this area a lot of the information that I have found is great but not detailed enough to understand some of the process as what Ted has mentioned is perfect, thanks again Ted. OK the questions are still coming as follows. I am using Tomcate3.2.2 and runing of a localhost: In the example I am using I am assuming you are talking about the struts-example.war example that is shipped with Struts, right? I have the index.jsp page and in that I have two html links, one goes to get registered with the web application and the other is logon to the web application. If I click on logon this takes me to the logon.jsp page. When I client clicks on this as this is a .jsp this does not go to the actionservlet as that is not a .do action 'is that correct'? instead that just calls the viewer of logon.jsp??? or does this go direct to the JAVABEAN by passing the ActionServlet to get the logonform.java??? You can see when you run the app that the log on link does indeed link directly to logon.jsp. It works in this case because there is no setup necessary to prepopulate the LogonForm bean. When the html:form tag in logon.jsp is executed, it will see that the form bean does not exist, and will create one automatically with default values. In general, I do recommend going through an action for things like this -- you'll see this technique used later. Now if the client clicks on the registation URL link on the index.jsp it comes back with a editregistration.do on the browser bar, in this case, as this is displaying the .do, Actually, it is *not* displaying the .do. Here's what really happens: * The form submit is dispatched to the LogonAction action. * Based on whether or not you typed the correct username and password, LogonAction selects whether to send you forwards to the main menu, or backwards to the logon page again (with an error message). * This choice is made by selecting which ActionForward instance is returned from the perform() method. * Struts uses the path inside that ActionForward to execute a RequestDispatcher.forward() call to the selected page. * The forward() all happens on the server side, so the browser's location bar is not updated. The bottom line is this - there is almost no relationship between what shows in the location bar and what page really created the response. does that mean that actually has been to the ActionServlet to JAVABEAN and comes back with the registration form display or does this just go to the viewer and retreives the registration.jsp form, with out going to the ActionServlet?? I understand that if the person sends a request 'A' to logon to the web application it needs to be a .do and needs to go to the ActionServlet 'B' I think that it goes the same with the registration as well. It is when they are asking for the forms to submit is where I don't know where they are stored or if they need to be retreived from the JSP viewer etc. Thanks for your time and I hope that can get another good response. Many thanks Ted and have a great day. See above for the details, but you should totally ignore the location bar when running any web app that uses RequestDispatcher.forward(), not just a Struts based app. The location bar only tells you where you *submitted to*, not where the response came from. Kind Regards Rodney Smith -- Sent through GMX FreeMail - http://www.gmx.net Craig
Re: html:select and html:options
On Mon, 6 Aug 2001, Stefan Faist wrote: Hello all, I these two lists: td bean:define name=erfassungForm id=names property=allProjektNamen / html:select property=projektname html:options collection=names property=value labelProperty=label / /html:select /td td bean:define name=erfassungForm id=aktivitaeten property=allProjekt_aktivitaeten / html:select property=aktivitaetname html:options collection=aktivitaeten property=value labelProperty=label / /html:select /td I want this: When I select one element in the list ... id=names ... the then the list ... id=aktivitaeten ... get elements, that are the activities from the element of the first list. Is there a way to call a action when I select a element? I hope you understand what I want. There are two possible scenarios, depending on how big the various lists of options for the second select box is. * You can use Javascript to detect changes in the first select box, and dynamically change the contents of the second box. This requires that the various choices for the second box are small enough to have been included in the page -- perhaps as Javascript arrays of strings. * You can use Javascript to detect changes in the first select box, and then submit the form for you. You'll need to tell the Action that receives the form that this is *only* being submitted to repopulate the second select box -- perhaps by setting the value of a particular hidden variable in the form -- so that it will just redisplay the form with the updated values. None of this is really particular to Struts -- we're stuck with the capabilities of HTTP and HTML that we are running on top of. Is there any way to do this? Can someone help me? Best regards, STEFAN Craig McClanahan
Re: Validation a form
On Mon, 6 Aug 2001, DUPRAT Alexandre wrote:
hi,
How can i validate a form?
I tried :
public ActionErrors validate(ActionMapping mapping, HttpServletRequest req)
{
ActionErrors errors= new ActionErrors();
if(! getSqlQuery().startsWith(select)){
ActionError error = new ActionError(error.requete);
errors.add(sqlQuery, error);
}
return errors;
}
it works when there is no error but not when i've one
Is there somebody with an idea?
The above code looks OK -- what about it doesn't work?
Note that you *must* specify an input attribute on your Action, so that
Struts knows where to send the user back to.
Alexandre Duprat
SOPRA. Direction France Sud. Bordeaux
[EMAIL PROTECTED]
Craig McClanahan
servlet.getServletContext() always null...why?
i have a base action class in which i declare a variable of type
ServletContext:
public abstract class BaseAction extends Action
{
protected ServletContext ctx = servlet.getServletContext();
...
}
yet i always get a NullPointerException on this line when struts tries to
instantiate a subclass of this base class. why?
2001-08-06 01:13:55 - path=/bc :action: Error creating Action instance for
path '/Login', class name 'com.gs.bc.action.LoginAction' -
java.lang.NullPointerException
at com.gs.bc.action.BaseAction.init(BaseAction.java:15)
at com.gs.bc.action.LoginAction.init(LoginAction.java:16)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:237)
at
org.apache.struts.action.ActionServlet.processActionCreate(ActionServlet.java:1631)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1576)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:509)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:405)
at org.apache.tomcat.core.Handler.service(Handler.java:287)
at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:797)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
at
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:213)
at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:501)
at java.lang.Thread.run(Thread.java:484)
_
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Question: Struts on Weblogic - Urgent please
Hi, I am using Struts on Weblogic 5.1 with SP9. Initially I developed my app on Tomcat. Here, I am forwarding control to another action object. So, in my config.xml, I have: forward name=next path=/detcontrol.do redirect=true/ I start my app on Tomcat through URL: http://localhost/wls/cmweb/detrunselect.do. When I submit this page, the new URL I get is: http://localhost/wls/cmweb/detcontrol.do. This is the expected behavior. However, when I try to run the same on Weblogic, the second URL comes up as: http://localhost/cmweb/detcontrol.do. Please note that 'wls' get dropped from the URL. This causes the app to fail. Can some one tell me how can I still get the 'wls' while using 'redirect = true'? For my Tomcat, I have an entry in server.xml as: Context path=/wls/cmweb docBase=apps/cmweb debug=0 reloadable=true/Context I feel it is this entry that is adding 'wls' to the relative path. Where can I add this entry for the Weblogic. (Weblogic does not seem to have server.xml). Thanks in advance, Sujit
Re: Unit testing Actions
i've had some success unit testing struts actions using cactus.
here's what i did:
0) replicate your approot in the test webapp, including struts-config.xml
1) in the web.xml (or webapp file for websphere test environment), add
struts initialization parameters to the cactus ServletRedirector servlet
2) write a class that extends org.apache.commons.cactus.ServletTestCase.
a skeletal example is below.
i'm interested to hear feedback on this approach. overkill, not enough?
as it stands, i have to create an ActionServlet and init() it with the config
object i get for free from cactus (which because of step 1 has the config
params that struts needs). seems kind of wacky.
public class SomeActionTest
extends ServletTestCase
{
private ActionServlet servlet;
private Action action;
public SomeActionTest(String name)
{
super(name);
}
public static Test suite()
{
return new TestSuite(SomeActionTest.class);
}
public static void main(String[] args)
{
new junit.swingui.TestRunner().run(SomeActionTest.class);
}
protected void setUp() throws Exception
{
super.setUp();
this.servlet = new ActionServlet();
servlet.init(config);
this.action = new SomeAction();
action.setServlet(servlet);
}
protected void tearDown() throws Exception
{
servlet.destroy();
super.tearDown();
}
public void testPerform()
{
try
{
ActionForward forward =
action.perform(
servlet.findMapping(/produceAForm),
null,
request,
response);
assertEquals(success, forward.getName());
ActionFormBean formBeanDef = servlet.findFormBean(aForm);
Object obj = request.getAttribute(aForm);
assertNotNull(obj);
assertEquals(formBeanDef.getType(), obj.getClass().getName());
}
catch (Exception e)
{
fail(threw: + e);
}
}
}
[EMAIL PROTECTED] 07/31/01 04:04AM
Hi John,
If you don't get any answer on the struts-user mailing list please repost on the
cactus-user list, I know for sure that several persons have done it and would be able
to give you the code. Basically, there is no helper class for the time being, meaning
that before calling your action, you'll need to create needed Struts objects. But as
Struts is very well designed and is using the composition approach (meaning that
objects are not hard-linked with each other but rather you initialize an object by
passing it needed domain objects) there is no problem with that and it works fine.
-Vincent
- Original Message -
From:John Yu
To:[EMAIL PROTECTED]
Sent: Tuesday, July 31, 2001 8:31 AM
Subject: Unit testing Actions
Is there any sample showing how to do unit testing for Actions? How do I use Cactus to
do it?
Thanks.
--
John Yu Scioworks Technologies
e: [EMAIL PROTECTED] w: +(65) 873 5989
w: A href=http://www.scioworks.comnbsp;http://www.scioworks.comA
href=http://www.scioworks.comnbsp;m: +(65) 9782 9610
MVC via DOM
I have learned alot about MVC (and M2C) from this list and its authors and in general agree that the Struts model is a *better* way to do things (in lieu of the JSP and/or Servlet and Bean design). On the otherhand I have been uncomfortable adopting the BEAN|JSP|ACTION paradigm because of JSP as the main component for expressing views. Although I also have issues with Lutris and Enhydra, I do think that XMLC brings a more intuitive and generalized interface to the View component (especially when you consider that from the XML data you can derive several views of the same data; cHTML, HTML, WML, et al). I have no interest in beginning a war of words over the best View or Presentation technology available but I would like to know of any like mindedness and if anyone is working on a true open source implementation of View technology based on DOM (Xerces and Xalan) for Struts. Although I may not have the technical where withall of some of the other members of this list I can carry coffee and would like to help. Thanks. //* Steven Elliott [EMAIL PROTECTED] Head of Technology VTV Learning Corporation Los Angeles - Boston - Lisbon www.vtvlearning.com
When session invalidates, template doesn't clear out....
Hi all... I have a webapp that uses Struts templates. I have a place in my template where I plug in the current user's username and basic info. I can sucessfully do a session.invalidate(), but then when I link back to my loginpage, their info still shows up on the template. How do they really work? I thought they would get reloaded everytime, but it seems that they don't fully reload. Is this true? Thanks, Becky _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp
Using STRUTS with Servlet Exec
I just downloaded STRUTS and am hoping to use it with the ServletExec JSP/Servlet server. I noticed in the install file that there is no reference to Servlet Exec, and am wondering if it's compatible with STRUTS and if there are any additional steps I need to take in setting it up (besides simply dragging the WAR file into the 'WebApps' directory). Also, Is there anything I should watch out for that might save me hours of needless agonizing? Thanks in advance for any help you can offer me. Regards, Vince Davis, Sr. Consultant Integrated Information Systems, Inc. p (480)-317-8746 c (602)-738-8134 f (480)-317-8010 e [EMAIL PROTECTED] www.iis.com http://www.iis.com NASDAQ: IISX __ Integrated Information Systems is an innovative technology and business consultancy providing extensive experience and insight to create a sustainable competitive edge for clients. __ LEGAL NOTICE - Unless expressly stated otherwise, this message is confidential and may be privileged. It is intended for the addressee(s) only. If you are not an addressee, any disclosure or copying of the contents of this e-mail or any action taken (or not taken) in reliance on it is unauthorized. If you are not an addressee, please inform sender immediately.
RE: Form processing question
You do know there's a typo in your example, don't you? You're trying to pair a logic:notPresent with a /logic:present (note the missing not). Maybe it's only in your email, but it has bitten me IRL. Marcel -Oorspronkelijk bericht- Van: Greg Maletic [mailto:[EMAIL PROTECTED]] Verzonden: maandag 6 augustus 2001 1:29 Aan: Martin Cooper; [EMAIL PROTECTED] Onderwerp: RE: Form processing question That was my idea, too, but it doesn't seem to work. I'm doing the following: logic:present parameter=productId % html:form action=editProductConfirmed.do /logic:present logic:notPresent parameter=productId % html:form action=addProductConfirmed.do /logic:present But the parser goes nuts with this. XML doesn't allow improperly nested tags, so it complains that there's no matching /html:form tag inside of the logic:present tag. Does anyone have any other ideas? Thanks. -Original Message- From: Martin Cooper [mailto:[EMAIL PROTECTED]] Sent: Saturday, August 04, 2001 11:27 AM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Re: Form processing question One way to do this would be to use the Struts conditional tags to generate a different URL on the page for edit versus add. You could base the decision on the presence or absence of your productId parameter. -- Martin Cooper - Original Message - From: Greg Maletic [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, August 02, 2001 5:09 PM Subject: Form processing question I have a JSP that is used to edit data on a ActionForm bean. There are two ways for users to reach this JSP: 1) if they're adding a new object into my app; 2) if they're editing an existing object in my app. I'm using two mappings in my struts-config.xml file to represent these two types of actions (/add and /edit), although they both map to this same JSP. (Additionally, the /edit mapping has a parameter called productId that describes which product to edit, while the /add mapping doesn't have a parameter.) It's the behavior when the JSP's form is submitted that I'm having trouble with. If the JSP was reached through the add mapping, I want it to go to an /addExecute mapping that will actually add the object. And if the JSP was reached through the edit mapping, I want the form to go to an /editExecute mapping that will actually make the modifications to the object. (As above, the /editExecute mapping needs a productId parameter specified--passed through from the original /edit mapping--while the /addExecute mapping doesn't.) Unfortunately, I can't figure out how to conditionally make the form submit to one of two different actions (/addExecute or /editExecute). Is there a way to make this work? Is this the right technique for solving this problem? If not, could someone please let me know how this is typically done? Thanks! Greg
Re: servlet.getServletContext() always null...why?
On Mon, 6 Aug 2001, Jon Crater wrote:
i have a base action class in which i declare a variable of type
ServletContext:
public abstract class BaseAction extends Action
{
protected ServletContext ctx = servlet.getServletContext();
...
}
yet i always get a NullPointerException on this line when struts tries to
instantiate a subclass of this base class. why?
Because instance variable initialization expressions like this are
executed (effectively) when the constructor is called -- so Struts has not
yet had time to initialize the servlet property.
I suggest you override setServlet() instead:
protected ServletContext ctx = null;
public void setServlet(ActionServlet servlet) {
super(servlet);
if (servlet != null)
ctx = servlet.getServletContext();
else
ctx = null;
}
Craig
Re: MVC via DOM
On Mon, 6 Aug 2001, Steven Elliott wrote: I have learned alot about MVC (and M2C) from this list and its authors and in general agree that the Struts model is a *better* way to do things (in lieu of the JSP and/or Servlet and Bean design). On the otherhand I have been uncomfortable adopting the BEAN|JSP|ACTION paradigm because of JSP as the main component for expressing views. Although I also have issues with Lutris and Enhydra, I do think that XMLC brings a more intuitive and generalized interface to the View component (especially when you consider that from the XML data you can derive several views of the same data; cHTML, HTML, WML, et al). Yep ... XMLC is pretty cool. I have no interest in beginning a war of words over the best View or Presentation technology available but I would like to know of any like mindedness and if anyone is working on a true open source implementation of View technology based on DOM (Xerces and Xalan) for Struts. Although I may not have the technical where withall of some of the other members of this list I can carry coffee and would like to help. For the general use of XML data (and XSLT transformations) in web applications, I would definitely start by looking at the Cocoon project http://xml.apache.org. Some Struts users have used Cocoon as the view layer for part or all of their applications. If you are a heavy user of the Struts custom tag libraries, you will find that this integration is not necessarily easy, because your XSLT stylesheets have to emulate the kinds of HTML generation that the Struts tags do. On the other hand, for view operations that are primarily display oriented, it should be as simple as setting up your forward declarations to invoke the Cocoon servlet with the appropriate parameters to get the output you need. Thanks. //* Steven Elliott [EMAIL PROTECTED] Head of Technology VTV Learning Corporation Los Angeles - Boston - Lisbon www.vtvlearning.com Craig McClanahan
RE: Form processing question
Thanks; it's a typo in my e-mail. The solution that Craig posted earlier--store the form name in a variable and evaluate it with %= % tags--works great. -Original Message- From: Marcel Maré [mailto:[EMAIL PROTECTED]] Sent: Monday, August 06, 2001 12:10 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: Form processing question You do know there's a typo in your example, don't you? You're trying to pair a logic:notPresent with a /logic:present (note the missing not). Maybe it's only in your email, but it has bitten me IRL. Marcel -Oorspronkelijk bericht- Van: Greg Maletic [mailto:[EMAIL PROTECTED]] Verzonden: maandag 6 augustus 2001 1:29 Aan: Martin Cooper; [EMAIL PROTECTED] Onderwerp: RE: Form processing question That was my idea, too, but it doesn't seem to work. I'm doing the following: logic:present parameter=productId % html:form action=editProductConfirmed.do /logic:present logic:notPresent parameter=productId % html:form action=addProductConfirmed.do /logic:present But the parser goes nuts with this. XML doesn't allow improperly nested tags, so it complains that there's no matching /html:form tag inside of the logic:present tag. Does anyone have any other ideas? Thanks. -Original Message- From: Martin Cooper [mailto:[EMAIL PROTECTED]] Sent: Saturday, August 04, 2001 11:27 AM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Re: Form processing question One way to do this would be to use the Struts conditional tags to generate a different URL on the page for edit versus add. You could base the decision on the presence or absence of your productId parameter. -- Martin Cooper - Original Message - From: Greg Maletic [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, August 02, 2001 5:09 PM Subject: Form processing question I have a JSP that is used to edit data on a ActionForm bean. There are two ways for users to reach this JSP: 1) if they're adding a new object into my app; 2) if they're editing an existing object in my app. I'm using two mappings in my struts-config.xml file to represent these two types of actions (/add and /edit), although they both map to this same JSP. (Additionally, the /edit mapping has a parameter called productId that describes which product to edit, while the /add mapping doesn't have a parameter.) It's the behavior when the JSP's form is submitted that I'm having trouble with. If the JSP was reached through the add mapping, I want it to go to an /addExecute mapping that will actually add the object. And if the JSP was reached through the edit mapping, I want the form to go to an /editExecute mapping that will actually make the modifications to the object. (As above, the /editExecute mapping needs a productId parameter specified--passed through from the original /edit mapping--while the /addExecute mapping doesn't.) Unfortunately, I can't figure out how to conditionally make the form submit to one of two different actions (/addExecute or /editExecute). Is there a way to make this work? Is this the right technique for solving this problem? If not, could someone please let me know how this is typically done? Thanks! Greg
Re: TILES template with STRUTS problem
Which xml parser do you use ?
Tiles, like Struts1.1-dev use commons.Digester package, which requires Jaxp1.1 to
run.
Cedric
BinhMinh Nguyen wrote:
Hi,
When copied the titles-doc.WAR into Tomcat 's webapps
and run. The following error-message display.
Can you spot out the error please.
Binh Nguyen, a big fan of Component and Tiles
er('-//Sun Microsystems, Inc.//DTD Web Application
2.2//EN', 'jar:file:C:\jakarta-tomcat-3.2.3
ps\tiles-doc\WEB-INF\lib\struts.jar!/org/apache/struts/resources/web-app_2_2.dtd'
er('-//Sun Microsystems, Inc.//DTD Web Application
2.3//EN', 'jar:file:C:\jakarta-tomcat-3.2.3
ps\tiles-doc\WEB-INF\lib\struts.jar!/org/apache/struts/resources/web-app_2_3.dtd'
er.getParser:
xml.parsers.ParserConfigurationException: Namespace
not supported by SAXParser
at
com.sun.xml.parser.SAXParserImpl.init(SAXParserImpl.java:60)
at
com.sun.xml.parser.SAXParserFactoryImpl.newSAXParser(SAXParserFactoryImpl.java:57)
at
org.apache.commons.digester.Digester.getParser(Digester.java:407)
at
org.apache.commons.digester.Digester.parse(Digester.java:1088)
at
org.apache.struts.action.ActionServlet.initMapping(ActionServlet.java:1272)
at
org.apache.struts.action.ActionServlet.init(ActionServlet.java:459)
at
org.apache.struts.tiles.ActionComponentServlet.init(ActionComponentServlet.java:56)
at
javax.servlet.GenericServlet.init(GenericServlet.java:258)
at
org.apache.tomcat.core.ServletWrapper.doInit(ServletWrapper.java:317)
at
org.apache.tomcat.core.Handler.init(Handler.java:215)
at
org.apache.tomcat.core.ServletWrapper.init(ServletWrapper.java:296)
at
org.apache.tomcat.context.LoadOnStartupInterceptor.contextInit(LoadOnStartupInterceptor.j
0)
at
org.apache.tomcat.core.ContextManager.initContext(ContextManager.java:491)
at
org.apache.tomcat.core.ContextManager.init(ContextManager.java:453)
at
org.apache.tomcat.startup.Tomcat.execute(Tomcat.java:195)
at
org.apache.tomcat.startup.Tomcat.main(Tomcat.java:235)
ion in thread main java.lang.NoSuchMethodError
at
org.apache.commons.digester.Digester.parse(Digester.java:1088)
at
org.apache.struts.action.ActionServlet.initMapping(ActionServlet.java:1272)
at
org.apache.struts.action.ActionServlet.init(ActionServlet.java:459)
at
org.apache.struts.tiles.ActionComponentServlet.init(ActionComponentServlet.java:56)
at
javax.servlet.GenericServlet.init(GenericServlet.java:258)
at
org.apache.tomcat.core.ServletWrapper.doInit(ServletWrapper.java:317)
at
org.apache.tomcat.core.Handler.init(Handler.java:215)
at
org.apache.tomcat.core.ServletWrapper.init(ServletWrapper.java:296)
at
org.apache.tomcat.context.LoadOnStartupInterceptor.contextInit(LoadOnStartupInterceptor.j
0)
at
org.apache.tomcat.core.ContextManager.initContext(ContextManager.java:491)
at
org.apache.tomcat.core.ContextManager.init(ContextManager.java:453)
at
org.apache.tomcat.startup.Tomcat.execute(Tomcat.java:195)
at
org.apache.tomcat.startup.Tomcat.main(Tomcat.java:235)
arta-tomcat-3.2.3\bin
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Re: Problem using TILES template with STRUTS
Tiles tutorial is now merged in tiles-doc, under tiles-doc/tutorial. Also, Tiles require a Jaxp1.1 compliant XML parser. Cedric BinhMinh Nguyen wrote: Hi, I am a big fan of your Components, it woks very pretty. But since you rename Component to Tiles things are not pretty any more:) I have hard time switching one Components to Tiles , I did every things following your instrcutions, and it is still not working. Even when I just copy directly thetiles-doc-war that is provided in the tiles.zip file into my webapps directory of Tomcat and tried to run it, Tomcat- 3.2.3, just cannot load it. NeClassDefFoundException: SAV's defaultHAndler cannot be found or something. I am now waiting for the Tiles tutorials :) right now it is not avaialbe yet. Can anyone provide more details tutorials or step by step config about using Tiles , what is the minimal requirements to use Tiles: what API, what it to be in web.xml, strut-config.xml, and componentDefintions.xml thank you very much __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/
RE: Using STRUTS with Servlet Exec
Hello Vince, I'm currently using Struts 1.0 with ServletExec 4.0 ISAPI for Microsoft IIS on Win2000 and have not had any problems. It was pretty simple. If you use .war file, you can do as you mentioned already and put it in the [SEversion]/webapps/default directory. When SE starts up, then it will unpack the .war file to ServletExec Data/default/[webapp name]. One gotcha I ran into was manually creating the directory structure (instead of using a .war file) and then registering my web app using the SE admin interface. You need to remember to give your root web app directory the appropriate permissions or it won't be able to write to the log file. HTH, robert -Original Message- From: Vince Davis [mailto:[EMAIL PROTECTED]] Sent: Monday, August 06, 2001 3:06 PM To: '[EMAIL PROTECTED]' Subject: Using STRUTS with Servlet Exec I just downloaded STRUTS and am hoping to use it with the ServletExec JSP/Servlet server. I noticed in the install file that there is no reference to Servlet Exec, and am wondering if it's compatible with STRUTS and if there are any additional steps I need to take in setting it up (besides simply dragging the WAR file into the 'WebApps' directory). Also, Is there anything I should watch out for that might save me hours of needless agonizing? Thanks in advance for any help you can offer me. Regards, Vince Davis, Sr. Consultant Integrated Information Systems, Inc. p (480)-317-8746 c (602)-738-8134 f (480)-317-8010 e [EMAIL PROTECTED] www.iis.com http://www.iis.com NASDAQ: IISX __ __ __ Integrated Information Systems is an innovative technology and business consultancy providing extensive experience and insight to create a sustainable competitive edge for clients. __ __ __ LEGAL NOTICE - Unless expressly stated otherwise, this message is confidential and may be privileged. It is intended for the addressee(s) only. If you are not an addressee, any disclosure or copying of the contents of this e-mail or any action taken (or not taken) in reliance on it is unauthorized. If you are not an addressee, please inform sender immediately.
IF statement in struts-config.xml
Hi, I think it will be very useful if struts can have IF statement in struts-config.xml to control the foward/ action. I am thinking of building a purely configurable system using struts framework. A system whose actions can be reassembled and chained to make new functionalities. IF statements are key to chain actions. Has any plan to implement the IF function in struts-config.xml underway? Yi-Xiong Zhou
RE: IF statement in struts-config.xml
Hmmm, I'm not sure I see the value in this (at least actually IN the XML file) - could you explain in more detail what you intend to do? Chris -Original Message- From: Yi-Xiong Zhou [mailto:[EMAIL PROTECTED]] Sent: Monday, August 06, 2001 5:02 PM To: '[EMAIL PROTECTED]' Subject: IF statement in struts-config.xml Hi, I think it will be very useful if struts can have IF statement in struts-config.xml to control the foward/ action. I am thinking of building a purely configurable system using struts framework. A system whose actions can be reassembled and chained to make new functionalities. IF statements are key to chain actions. Has any plan to implement the IF function in struts-config.xml underway? Yi-Xiong Zhou
RE: processPopulate() call configurable?
Please see comments below If you don't want processPopulate() to be called, just omit the form bean from your action element. The underlying problem is that if I prefill my form, all the values are overwritten by the Request objects current parameter values. I this something that other people have run into? Any work around? If your case is what I'm thinking it is, you probably want to consider using different actions for prepopulating (and then displaying) a form, versus accepting (and processing) the form submit. Consider in the struts-example application what happens when you select the Edit your registration profile option from the main menu: * This link goes to the /editRegistration action, which * Prepopulates the form bean, and But it does NOT create the bean and RegistrationForm.Reset() is called because it is listed as a form bean. To circumvent this (to be able to create the RegistrationForm oneself) it could be omitted as a form bean, but then you wouldn't be able to get the attribute name (by calling mapping.getAttribute()) * Forwards to the /registration.jsp page to display it with values from the database. * Then, the form is submitted to the /saveRegistration action, which validates the input (returning on any errors) or does the appropriate database action. The form bean's Reset() would *again* be called possibly undoing all previous manipulations. So is the only option to not implement a formbean Reset() method? Why is this seemingly simple task of prepopulating a form so difficult? Thanks Marcel
Re: IF statement in struts-config.xml
Hello, The mappings that are set up in the struts-config.xml can be modified programmatically. So, if you want to reconfigure a forward, you would not need an if statement in the struts config, but I believe you can do it in your program that references the forward. For example: ActionForward forward = mapping.findForward(success); forward.setPath(my new path); disclaimer: I have not changed actual forwards this way (except by accident). I have modified the paths in a forward, but I have always created a new forward object to be returned by my ActionServlet. I would be worried that a modified forward could be garbage collected and set back to its original value from the struts-config when called for again. Maybe someone else could comment on whether or not this is a potential problem. I do it like this to avoid potential problems: ActionForward forward = mapping.findForward(success); ActionForward newForward = new ActionForward(forward.getPath()); //do stuff to modify path return newForward; Bill forward.setPath(my new path); Yi-Xiong Zhou wrote: Hi, I think it will be very useful if struts can have IF statement in struts-config.xml to control the foward/ action. I am thinking of building a purely configurable system using struts framework. A system whose actions can be reassembled and chained to make new functionalities. IF statements are key to chain actions. Has any plan to implement the IF function in struts-config.xml underway? Yi-Xiong Zhou
how to create a submit button with my own image
for a struts form, html:form action=/html:form, how to create a submit button with my own image? I have tried to use javascript to do onclick=javascript:window.document.form.submit(), but it did not work, because the struts form do not have a name for the form. Thanks Long __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/
Re: Question: Struts on Weblogic - Urgent please
Try putting it into the file web.xml in Web-inf directory Quan - Original Message - From: Upadhye, Sujit (GEAE, Foreign National) [EMAIL PROTECTED] To: Craig R. McClanahan [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Tuesday, August 07, 2001 12:40 AM Subject: Question: Struts on Weblogic - Urgent please Hi, I am using Struts on Weblogic 5.1 with SP9. Initially I developed my app on Tomcat. Here, I am forwarding control to another action object. So, in my config.xml, I have: forward name=next path=/detcontrol.do redirect=true/ I start my app on Tomcat through URL: http://localhost/wls/cmweb/detrunselect.do. When I submit this page, the new URL I get is: http://localhost/wls/cmweb/detcontrol.do. This is the expected behavior. However, when I try to run the same on Weblogic, the second URL comes up as: http://localhost/cmweb/detcontrol.do. Please note that 'wls' get dropped from the URL. This causes the app to fail. Can some one tell me how can I still get the 'wls' while using 'redirect = true'? For my Tomcat, I have an entry in server.xml as: Context path=/wls/cmweb docBase=apps/cmweb debug=0 reloadable=true/Context I feel it is this entry that is adding 'wls' to the relative path. Where can I add this entry for the Weblogic. (Weblogic does not seem to have server.xml). Thanks in advance, Sujit
Session attributes thread safe
Hi all This may be an off topic discussion. Craig mentioned about the need to make session attributes thread safe. What are the factors to look out for in order to make session attributes thread safe? Thanks in advance Regards Michael Mok -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Tuesday, 7 August 2001 0:12 To: [EMAIL PROTECTED] Subject: RE: Re: struts training I agree with Devon's concerns about this. Struts assumes a pretty robust understanding of the general principles of servlet and JSP programming (including the intricacies of a web application archive file). The good news for developers is that all of this level of knowledge is transferrable, because the underlying specs are used by *any* servlet and JSP environment, and the various app servers and servlet containers implement them (pretty much, and getting better :-) the same way. But you are going to be an unhappy camper if you don't know what load-on-startup does, or that you have to make session attributes thread safe, or how the /WEB-INF directory is organized, or ...). Craig
Re: Session attributes thread safe
On Tue, 7 Aug 2001, Michael Mok wrote:
Hi all
This may be an off topic discussion. Craig mentioned about the need to make
session attributes thread safe.
Thought that might catch someone's attention ... :-)
What are the factors to look out for in order to make session attributes
thread safe?
It's worthwhile to first review a couple of reasons why you should care
about this. Consider the following scenarios:
* Your application uses frames (when you refresh the entire page,
the browser will often issue multiple simultaneous requests for
the different frames).
* Your user opens multiple windows to the same application (which will
be part of the same session in most cases), and is performing requests
on more than one window at the same time.
* Your user starts a long-running request, presses stop, and then starts
a different request before the first one has finished.
In each case, you will have multiple requests accessing the same session
(and therefore the same session attributes. So, how worried should you
be?
The general principle I use is enlightened paranoia -- will your
application give back to the correct results, even if the worst possible
combination of interactions from the multiple requests happpens?
Most of the time, you are concerned about requests that *modify* a session
attribute causing problems for some other request that is either modifying
the same attribute at the same time, or is trying to read stuff from that
attribute while some other request is writing to it. Let's take the
multiple writes problem first.
If your property is a simple type (a primitive type or a String), you
generally don't need to worry too much. Whichever assignment happens last
wins. But there won't be the case that a pointer to the underlying value
is halfway updated so that a simultaneous reader gets a totally bogus
value. In technical terms, assignments of Strings and primitives can be
considered atomic in Java. On the other hand, if the underlying
property is complex (such as a linked list), it is clearly possible for
simultaneous writes (or a write that is simultaneous with one or more
reads) to interfere with each other.
Multiple simultaneous read operations are generally not a problem,
because they usually don't cause any change to the internal structure of
the objects being read.
The situation gets more interesting when there are one or more read
operations that are going on simultaneous with a write operation. Again,
primitives and Strings are not the problem -- but complex data types
are. Just as an example, consider a property represented as a linked list
that is being modified by one request while being read by another. It is
very easy to conceive of how the pointers to the next and/or
previous elements could be modified at an inopportune time while the
reading request is trying to process the list.
The general strategy when you have the potential for thread safety
problems is to use the synchronized modifier in your Java
classes. You don't want to do this universally, because there is a
performance cost -- so you want to be diligent about understanding where
it is needed. Synchronization can be done at two levels:
* You can add synchronized to the getter and setter methods themselves.
In effect, you are allowing only a single getter or setter operation
on the entire object containing these methods. It works, but sometimes
it is overkill. (In technical terms, synchronizing a method is the same
as creating a block like this:
synchronized (this) {
... contents of this method ...
}
because it locks access to this entire object instance.)
* You can create a synchronized block around access to a particular
instance variable. In this sceanrio you will be serializing access to
a particular instance variable, without impeding access to other
variables in the same session attribute. This can improve performance
over the case where you synchronize the methods themselves, but this
is only noticeable if multiple simultaneous access really does happen.
Note that, in some cases, the underlying classes you are using take care
of synchronization for you. For example, java.util.Hashtable guarantees
that any get() or put() operation you execute cannot corrupt other
get or put operations that are happening simultaneously. On the other
hand, the java.util.HashMap class (with very similar
functionality) makes no such guarantees -- synchronization is up to the
caller. This can really help performance in single-threaded applications
that (by definition) cannot have multiple threads accessing the same
object at the same time, but it becomes your responsibility to worry about
it.
NOTE: The servlet API requires that a container guarantee
the thread-safety of calls like session.setAttribute(). Your
application does *not* have to synchronize those calls - it
does need to worry about what happens when two requests call
using a Collection from nested attributes for option tag
I have previously been populating my options form elements from ArrayLists I have stored in the application scope. I am now implementing a more robust caching mechanism for this information and am trying to find the best way to access these collections now. For example to get to one of my collections now, I would use the following call: ArrayList countries = CacheManager.getMenuCache().getCountries(); CacheManager is stored at the application scope, under Const.CACHE_MANAGER_KEY. Is there a way to just use the options tag, with something like: html:options collection=% session.getAttribute(Const.CACHE_MANAGER_KEY).getMenuCache().getCountrie s() % property=value labelProperty=label/ or do I need to have a jsp:useBean tag to get to the collection? Thanks, Alex
New User For Struts
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Re: how to create a submit button with my own image
The name of the form is in the file struts-config.xml. action path=... ... name=this_is_the_form_name_you_want /action Quan - Original Message - From: Long Zhao [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, August 07, 2001 5:21 AM Subject: how to create a submit button with my own image for a struts form, html:form action=/html:form, how to create a submit button with my own image? I have tried to use javascript to do onclick=javascript:window.document.form.submit(), but it did not work, because the struts form do not have a name for the form. Thanks Long __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/
Re: how to create a submit button with my own image
You may use this html:form ... input type=image src=your_image /html:form Quan - Original Message - From: Long Zhao [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, August 07, 2001 5:21 AM Subject: how to create a submit button with my own image for a struts form, html:form action=/html:form, how to create a submit button with my own image? I have tried to use javascript to do onclick=javascript:window.document.form.submit(), but it did not work, because the struts form do not have a name for the form. Thanks Long __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/
