RE: All user's roles
I looked for this in servlet api 2.2 too but couldnt find it either - so had to do isUserInRole for each and every role ... would be great if someone has a better suggestion. Thanks Pratima -Original Message- From: Mike Douglass [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 26, 2001 12:58 PM To: [EMAIL PROTECTED] Subject: All user's roles Is there any way to get all roles for a currently authenticated user? We are about to implement a jsp application which allows a user to select one of a number of roles which will determine the functionality available in later pages. Essentially, I want to create a drop down box of all valid roles for the current user without having to build the names of all possible roles into the page source. Mike Douglass [EMAIL PROTECTED] Senior Systems Programmer Communication Collaboration Technologies 518 276 6780(voice) 2809 (fax) Rensselaer Polytechnic Institute 110 8th Street, Troy, NY 12180
FW: action as the welcome page
-Original Message- From: Gogineni, Pratima Sent: Wednesday, August 15, 2001 11:59 AM To: '[EMAIL PROTECTED]' Subject: action as the welcome page Hi, I have seen some messages in the news groups which seem to indicate that it may be possible to set an action as the welcome page, though a couple of people were having problems with it. I tried doing this - set my welcome page to login.do (also tried /login.do). After authentication I get a 404 error that says ADM/login.do not found (ADM is my context). The /login action has been defined in struts-config.xml and I can forward to it through a jsp page. Im trying to find out if anyone else has been able to do this, if it is possible to do this at all, if I am doing something wrong ... Thanks Pratima -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 15, 2001 10:29 AM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: action mapping not working ...but when you finish going through the Action class (Question), you want to then go to the jsp, not the action again, which would give you an infinite loop! ;-) Dave Larry Maturo [EMAIL PROTECTED] on 08/15/2001 01:23:32 PM Please respond to [EMAIL PROTECTED]; Please respond to [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc:(bcc: David Hay/Lex/Lexmark) Subject: RE: action mapping not working Hi Dave, You wrote: Presumably you call your action Question from somewhere, execute it, and when it's done, you forward to question.jsp, not to the Question action again! Actually, I need to go through the Action Class each time, to repopulate the jsp from the database, since it represents a question, and I want the answers to contain whatever the user last entered, and I stored in the database for them. A breakpoint in my Action Class indeed shows it gets hit each time I press back or next. Again, thanks for the help. I don't need to understand it as long as it works. Ah yes, the enigma that is struts. :-) -- Larry -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 15, 2001 12:13 PM To: [EMAIL PROTECTED] Subject: RE: action mapping not working Larry, Presumably you call your action Question from somewhere, execute it, and when it's done, you forward to question.jsp, not to the Question action again! Hence the action has already executed, and you want to go to the jsp page. With the others, I guess you want to perform the action and then display the jsp, so the forward here should be another action, and the forward for the ReviewInstructions action is then a jsp page. Cheers, Dave Larry Maturo [EMAIL PROTECTED] on 08/15/2001 01:02:57 PM Please respond to [EMAIL PROTECTED] To: David_Hay/Lex/Lexmark.LEXMARK@sweeper.lex.lexmark.com, [EMAIL PROTECTED] cc:(bcc: David Hay/Lex/Lexmark) Subject: RE: action mapping not working Hi Dave You wrote If you want the action to be called, you should forward to the action, not the jsp eg forward name=showLog path=/ShowLog.do / Below is my new mapping: action path=/Question type=com.athensgroup.eval.action.QuestionAction name=QuestionForm scope=request input=/jsp/Question.jsp forward name=success path=/jsp/Question.jsp/ forward name=instructions path=/ReviewInstructions.do/ forward name=summary path=/ReviewSummary.do/ /action I don't understand why it works, but it does. Thank you. Any idea why sucess works even though it is different than the others? -- Larry
action as the welcome page
Hi, I have seen some messages in the news groups which seem to indicate that it may be possible to set an action as the welcome page, though a couple of people were having problems with it. I tried doing this - set my welcome page to login.do (also tried /login.do). After authentication I get a 404 error that says ADM/login.do not found (ADM is my context). The /login action has been defined in struts-config.xml and I can forward to it through a jsp page. Im trying to find out if anyone else has been able to do this, if it is possible to do this at all, if I am doing something wrong ... Thanks Pratima -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 15, 2001 10:29 AM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: action mapping not working ...but when you finish going through the Action class (Question), you want to then go to the jsp, not the action again, which would give you an infinite loop! ;-) Dave Larry Maturo [EMAIL PROTECTED] on 08/15/2001 01:23:32 PM Please respond to [EMAIL PROTECTED]; Please respond to [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc:(bcc: David Hay/Lex/Lexmark) Subject: RE: action mapping not working Hi Dave, You wrote: Presumably you call your action Question from somewhere, execute it, and when it's done, you forward to question.jsp, not to the Question action again! Actually, I need to go through the Action Class each time, to repopulate the jsp from the database, since it represents a question, and I want the answers to contain whatever the user last entered, and I stored in the database for them. A breakpoint in my Action Class indeed shows it gets hit each time I press back or next. Again, thanks for the help. I don't need to understand it as long as it works. Ah yes, the enigma that is struts. :-) -- Larry -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 15, 2001 12:13 PM To: [EMAIL PROTECTED] Subject: RE: action mapping not working Larry, Presumably you call your action Question from somewhere, execute it, and when it's done, you forward to question.jsp, not to the Question action again! Hence the action has already executed, and you want to go to the jsp page. With the others, I guess you want to perform the action and then display the jsp, so the forward here should be another action, and the forward for the ReviewInstructions action is then a jsp page. Cheers, Dave Larry Maturo [EMAIL PROTECTED] on 08/15/2001 01:02:57 PM Please respond to [EMAIL PROTECTED] To: David_Hay/Lex/Lexmark.LEXMARK@sweeper.lex.lexmark.com, [EMAIL PROTECTED] cc:(bcc: David Hay/Lex/Lexmark) Subject: RE: action mapping not working Hi Dave You wrote If you want the action to be called, you should forward to the action, not the jsp eg forward name=showLog path=/ShowLog.do / Below is my new mapping: action path=/Question type=com.athensgroup.eval.action.QuestionAction name=QuestionForm scope=request input=/jsp/Question.jsp forward name=success path=/jsp/Question.jsp/ forward name=instructions path=/ReviewInstructions.do/ forward name=summary path=/ReviewSummary.do/ /action I don't understand why it works, but it does. Thank you. Any idea why sucess works even though it is different than the others? -- Larry
RE: URI is null error on ActionForward
FYI - I usually get this when I have a datasource configured in the struts-config.xml but if for some reason the database cant be accessed -Original Message- From: Jon Brisbin [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 18, 2001 7:07 AM To: Struts List Subject: URI is null error on ActionForward I have a really simple action forward just like many I've used in the past. I am getting this error on JRun 3.1 EE. I have included an excerpt from my struts-config.xml and my action class to see if you y'all see something I just do not...I just added the redirect=true and it does the same thing. Thanks for any help you can give me here! :-) Jon Brisbin Lamar, MO [EMAIL PROTECTED] java.lang.IllegalArgumentException: URI is null at allaire.jrun.servlet.JRunSE.getRequestDispatcher(../servlet/JRunSE.java:1937 ) at org.apache.struts.action.ActionServlet.processActionForward(ActionServlet.ja va:1750) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1595) 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 allaire.jrun.servlet.JRunSE.service(../servlet/JRunSE.java:1416) at allaire.jrun.session.JRunSessionService.service(../session/JRunSessionServic e.java:1082) at allaire.jrun.servlet.JRunSE.runServlet(../servlet/JRunSE.java:1270) at allaire.jrun.servlet.JRunRequestDispatcher.forward(../servlet/JRunRequestDis patcher.java:89) at allaire.jrun.servlet.JRunSE.service(../servlet/JRunSE.java:1552) at allaire.jrun.servlet.JRunSE.service(../servlet/JRunSE.java:1542) at allaire.jrun.servlet.JvmContext.dispatch(../servlet/JvmContext.java:364) at allaire.jrun.http.WebEndpoint.run(../http/WebEndpoint.java:115) at allaire.jrun.ThreadPool.run(../ThreadPool.java:272) at allaire.jrun.WorkerThread.run(../WorkerThread.java:75) My struts config excerpt follows: !-- == Action Mapping Definitions == -- action-mappings !-- Create Category action -- action path=/AddCategory type=com.rrlures.struts.AddCategory name=categoryForm scope=request input=/catalog/admin.jsp forward name=success path=/catalog/admin-updated.jsp redirect=true / /action /action-mappings My action class forwards like such: // Set our utility objects HttpSession session = request.getSession(true); MessageResources messages = getResources(); CategoryForm form = (CategoryForm)actionForm; request.setAttribute(formxml, form.getXml()); getServlet().getServletContext().log(Forwarding to success.); return (new ActionForward(success));
RE: Tree
I guess I would have to use a combination of both javascript and JSP since I would like some actions to go throught the server and some just on the client side ... -Original Message- From: Matt Raible [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 19, 2001 10:34 AM To: [EMAIL PROTECTED] Subject: Re: Tree The problem with a jsp-based three is that you will have to go the server each time a user clicks on a node. If you want anything to change on the screen without hitting the server, you have to use javascript or dhtml (or the dom). --- Gogineni, Pratima [EMAIL PROTECTED] wrote: Hi I have been thinking for a while about making a tree jsp component using struts. I like the idea of having a jsp based tree rather than using the javascript trees that are normally used. I know I will have to write a lot of action classes to support a *Good* generic tree. But does anyone know of any problems with using a jsp based tree rather than javascript based? Thanks Pratima -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 19, 2001 9:05 AM To: [EMAIL PROTECTED] Subject: struts-layout Hi there! I am happy to inform you that the 0.3 version of struts-layout has been released on http://struts.application-servers.com. struts-layout is a tag library for Struts that allows for fast and easy development of jsp pages. With struts-layout, pages are described with only a small set of special tags. HTML tags are not any more needed (well, nearly), as struts-layout tags generates the layout. I kindly invite you to have a look on the site for more information. struts-layout is now used in my company's projects and in http://www.application-servers.com, a French site dedicated to information about application servers. French users can also find an introduction to Struts and struts-layout on this site in the article section. Please feel free to send me feedbacks and bug reports. Cheers, Jean-Noel __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail http://personal.mail.yahoo.com/
RE: html:errors tag?
Hi - I just did this in my form. html:errors itself doesnt do this. My actionform holds the row and column index of my error field which are set at the of validation. what i do is check if the error object exists and if the row and column indices match one of the fields being displayed - the cell is colored red. Pratima -Original Message- From: Matthias Brahm [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 18, 2001 9:25 AM To: '[EMAIL PROTECTED]' Subject: html:errors tag? Hi, is it possible to do something like this with struts: I have a form with labels for the input fields. These labels have the font color blue. The Form is validated by the FormBean. When one or more fields of the form are invalid and the control is forwarded back to the input form, the labels of the invalid input fields should have the font color red. In general, is it possible to output one text and in case of an error another one? Can I do this with the struts-tag-libs (html:errors)? Thanls
RE: thread problems?
Thanks for your suggestion Martin. I understand that nothing is preserved between requests. I have a fix (that I dont like) temporarily. I can detail below exactly what is happening and what the three solutions I could think of were and the one that I choose implement as a temporary fix. Would be glad to knwo what people think of it. My form bean has indexed properties that are displayed/modified in the jsp page. The valid indices on this property can change between requests. When the ActionServlet recieves a request - it sets all the properties on my form bean. Now when I manage to send multiple requests from the browser almost simultaneously - the first request executes properly as a result the valid indices on my bean have changed. Now the second request is handled by the actionservlet and it trys to set the same properties as the first one on the form bean but unfortunately the valid indices have changed and there is an error. I was thinking that if the transactional tokens were checked in the ActionServlet itself this problem would not have occurred. Another possibility was modify the bean utils so that for indexed propertys no errors are thrown if the indices have changed (I dont like this very much). Or alternatively redirect back to the input page from here. The third possibilty which I used as a temporary fix is this: In actionform if an indexed proprety value outside its range is being set - dont throw an error - Just do Nothing. And the above solution works fine. Thanks Pratima -Original Message- From: Martin Cooper [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 17, 2001 12:02 AM To: Gogineni, Pratima Cc: [EMAIL PROTECTED] Subject: Re: thread problems? I believe your problems are caused by your assumptions about the preservation (or otherwise) of state between requests. Nothing is guaranteed to be preserved unless you write code to make those guarantees. -- Martin Cooper - Original Message - From: Gogineni, Pratima [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, July 16, 2001 11:43 AM Subject: thread problems? Hi, I have been fighting with the following situation and would appreciate any ideas/suggestions. I have a session scoped form bean FBean, a jsp page that displays it dispFBean an action FBeanAction. I have inserted transactional tokens to take care of duplicate posting. After changing a value in dispFBean, an enter or/and a click work fine they do the same thing ie. call FBeanAction. when the 2 events are done in rapid succession - one event executes fine while the other event throws an exception because it is trying to access row#5 where as the previous action changed the number of rows to 4. Unfortunately the transactional tokens cant take care of this since this error is being thrown in BeanUtils.populate before it ever reaches an FBeanAction instance. I also tried declaring the jsp page threadsafe to check if that is the problem. Also note that the FBeanAction replaces FBean with a new Instance of FBean. Thanks Pratima
thread problems?
Hi, I have been fighting with the following situation and would appreciate any ideas/suggestions. I have a session scoped form bean FBean, a jsp page that displays it dispFBean an action FBeanAction. I have inserted transactional tokens to take care of duplicate posting. After changing a value in dispFBean, an enter or/and a click work fine they do the same thing ie. call FBeanAction. when the 2 events are done in rapid succession - one event executes fine while the other event throws an exception because it is trying to access row#5 where as the previous action changed the number of rows to 4. Unfortunately the transactional tokens cant take care of this since this error is being thrown in BeanUtils.populate before it ever reaches an FBeanAction instance. I also tried declaring the jsp page threadsafe to check if that is the problem. Also note that the FBeanAction replaces FBean with a new Instance of FBean. Thanks Pratima
transactional token
Hi, I find that I would like to include transactional tokens from my jsp page - I see that there is a transaction=true on the html:link tag but not on the html:form tag. I am planning to add this on the html:form tag as well. I just wanted to check with people on this list if there was a reason/problem why this wasnt done in the implementation of struts itself. Also is it considered a bad practise to saveTokens from the JSP pages at request time rather than in an action? Thanks Pratima -Original Message- From: Gogineni, Pratima Sent: Tuesday, July 10, 2001 9:33 PM To: '[EMAIL PROTECTED]' Subject: would transactional token help in this case? (could be a threadin g issue?) Hi, I have an application in which I havent used transactional tokens. I have a text field where I defined a onchange=preprocess() which sets a value and then submits the form. Heres the behaviour I see: a. It works 'perfectly' when I change the value and move the focus out of this text box (it gets submitted). b. It works 'alright' (for some reason this takes longer to process than the above case) when I hit enter in the text field c. It sometimes throws an error when I do step (a) followed by step (b) without waiting for the control to return from step (a). The kind of error I am getting (I would have to explain my program in detail to exactly say what this error is) leads me to suspect that two threads are trying to access/change the data in the form bean. Has anyone seen this behaviour before or knows if using transactional tokens would help in this case? (I am suspecting not from what I know of the way they work ...) Also note that this form/application worked well when I did not use onclick - i.e. using the default behaviour of submitting the value of the text field when you hit enter ... Thanks Pratima -Original Message- From: Ryan Cornia [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 10, 2001 7:49 AM To: [EMAIL PROTECTED] Subject: Error-page in web.xml I'm hoping someone can help me understand this better. In web.xml, I have the following entries - error-page exception-typejava.lang.Exception/exception-type location/errorpage.jsp/location /error-page error-page exception-typejavax.servlet.ServletException/exception-type location/errorpagesrvlt.jsp/location /error-page From my understanding, anytime an Exception, or ServletException occurs in my application, it will call either errorpage.jsp or errorpagesrvlt.jsp. Is that correct? Does it matter if the exception occurs in a JSP or a servlet? This seems to work in Tomcat, but with SilverStream, I don't get taken to the error page, but get the SilverStream generate error message. In my errorpage.jsp I have - %@ page language=Java isErrorPage=true% is that right? Thanks for any insite, this is driving me crazy. Ryan
RE: transactional token
clearly - I dotn understand the transaction tokens very well ... I just looked at the html:form tag and it seems they are adding the token in there if one is present in the session? Why is this behaviour as opposed to what is done in the html:link tag? so to use a transactional token with a form I have to set one in the session? thanks Pratima -Original Message- From: Gogineni, Pratima Sent: Wednesday, July 11, 2001 10:22 AM To: '[EMAIL PROTECTED]' Subject: transactional token Hi, I find that I would like to include transactional tokens from my jsp page - I see that there is a transaction=true on the html:link tag but not on the html:form tag. I am planning to add this on the html:form tag as well. I just wanted to check with people on this list if there was a reason/problem why this wasnt done in the implementation of struts itself. Also is it considered a bad practise to saveTokens from the JSP pages at request time rather than in an action? Thanks Pratima -Original Message- From: Gogineni, Pratima Sent: Tuesday, July 10, 2001 9:33 PM To: '[EMAIL PROTECTED]' Subject: would transactional token help in this case? (could be a threadin g issue?) Hi, I have an application in which I havent used transactional tokens. I have a text field where I defined a onchange=preprocess() which sets a value and then submits the form. Heres the behaviour I see: a. It works 'perfectly' when I change the value and move the focus out of this text box (it gets submitted). b. It works 'alright' (for some reason this takes longer to process than the above case) when I hit enter in the text field c. It sometimes throws an error when I do step (a) followed by step (b) without waiting for the control to return from step (a). The kind of error I am getting (I would have to explain my program in detail to exactly say what this error is) leads me to suspect that two threads are trying to access/change the data in the form bean. Has anyone seen this behaviour before or knows if using transactional tokens would help in this case? (I am suspecting not from what I know of the way they work ...) Also note that this form/application worked well when I did not use onclick - i.e. using the default behaviour of submitting the value of the text field when you hit enter ... Thanks Pratima -Original Message- From: Ryan Cornia [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 10, 2001 7:49 AM To: [EMAIL PROTECTED] Subject: Error-page in web.xml I'm hoping someone can help me understand this better. In web.xml, I have the following entries - error-page exception-typejava.lang.Exception/exception-type location/errorpage.jsp/location /error-page error-page exception-typejavax.servlet.ServletException/exception-type location/errorpagesrvlt.jsp/location /error-page From my understanding, anytime an Exception, or ServletException occurs in my application, it will call either errorpage.jsp or errorpagesrvlt.jsp. Is that correct? Does it matter if the exception occurs in a JSP or a servlet? This seems to work in Tomcat, but with SilverStream, I don't get taken to the error page, but get the SilverStream generate error message. In my errorpage.jsp I have - %@ page language=Java isErrorPage=true% is that right? Thanks for any insite, this is driving me crazy. Ryan
RE: transactional token
I looked at the saveToken() in the action class -its just saving it in the session. So I guess that makes sense. Sorry for dashing off the previous mail without completely looking at the code. Thansk Pratima -Original Message- From: Gogineni, Pratima Sent: Wednesday, July 11, 2001 10:30 AM To: Gogineni, Pratima; '[EMAIL PROTECTED]' Subject: RE: transactional token clearly - I dotn understand the transaction tokens very well ... I just looked at the html:form tag and it seems they are adding the token in there if one is present in the session? Why is this behaviour as opposed to what is done in the html:link tag? so to use a transactional token with a form I have to set one in the session? thanks Pratima -Original Message- From: Gogineni, Pratima Sent: Wednesday, July 11, 2001 10:22 AM To: '[EMAIL PROTECTED]' Subject: transactional token Hi, I find that I would like to include transactional tokens from my jsp page - I see that there is a transaction=true on the html:link tag but not on the html:form tag. I am planning to add this on the html:form tag as well. I just wanted to check with people on this list if there was a reason/problem why this wasnt done in the implementation of struts itself. Also is it considered a bad practise to saveTokens from the JSP pages at request time rather than in an action? Thanks Pratima -Original Message- From: Gogineni, Pratima Sent: Tuesday, July 10, 2001 9:33 PM To: '[EMAIL PROTECTED]' Subject: would transactional token help in this case? (could be a threadin g issue?) Hi, I have an application in which I havent used transactional tokens. I have a text field where I defined a onchange=preprocess() which sets a value and then submits the form. Heres the behaviour I see: a. It works 'perfectly' when I change the value and move the focus out of this text box (it gets submitted). b. It works 'alright' (for some reason this takes longer to process than the above case) when I hit enter in the text field c. It sometimes throws an error when I do step (a) followed by step (b) without waiting for the control to return from step (a). The kind of error I am getting (I would have to explain my program in detail to exactly say what this error is) leads me to suspect that two threads are trying to access/change the data in the form bean. Has anyone seen this behaviour before or knows if using transactional tokens would help in this case? (I am suspecting not from what I know of the way they work ...) Also note that this form/application worked well when I did not use onclick - i.e. using the default behaviour of submitting the value of the text field when you hit enter ... Thanks Pratima -Original Message- From: Ryan Cornia [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 10, 2001 7:49 AM To: [EMAIL PROTECTED] Subject: Error-page in web.xml I'm hoping someone can help me understand this better. In web.xml, I have the following entries - error-page exception-typejava.lang.Exception/exception-type location/errorpage.jsp/location /error-page error-page exception-typejavax.servlet.ServletException/exception-type location/errorpagesrvlt.jsp/location /error-page From my understanding, anytime an Exception, or ServletException occurs in my application, it will call either errorpage.jsp or errorpagesrvlt.jsp. Is that correct? Does it matter if the exception occurs in a JSP or a servlet? This seems to work in Tomcat, but with SilverStream, I don't get taken to the error page, but get the SilverStream generate error message. In my errorpage.jsp I have - %@ page language=Java isErrorPage=true% is that right? Thanks for any insite, this is driving me crazy. Ryan
RE: transactional token
I just figured it today. I looked for the documentation too but couldnt find any. Looking at the following methods helped me understand it. a. saveToken(), resetToken(), isTokenValid() methods in Action class b. computeURL ( computeParameters) mehtod in requestUtil shows how it is added into the url of a link c. look at the FormTag.java and LinkTag.java to see how the transactional token is added Hope this helps Pratima -Original Message- From: Trieu, Danny [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 11, 2001 1:40 PM To: '[EMAIL PROTECTED]' Subject: RE: transactional token does anyone know where to find out how to use transactional token in struts? Thanks, -Original Message- From: Gogineni, Pratima [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 11, 2001 10:30 AM To: Gogineni, Pratima; '[EMAIL PROTECTED]' Subject: RE: transactional token clearly - I dotn understand the transaction tokens very well ... I just looked at the html:form tag and it seems they are adding the token in there if one is present in the session? Why is this behaviour as opposed to what is done in the html:link tag? so to use a transactional token with a form I have to set one in the session? thanks Pratima -Original Message- From: Gogineni, Pratima Sent: Wednesday, July 11, 2001 10:22 AM To: '[EMAIL PROTECTED]' Subject: transactional token Hi, I find that I would like to include transactional tokens from my jsp page - I see that there is a transaction=true on the html:link tag but not on the html:form tag. I am planning to add this on the html:form tag as well. I just wanted to check with people on this list if there was a reason/problem why this wasnt done in the implementation of struts itself. Also is it considered a bad practise to saveTokens from the JSP pages at request time rather than in an action? Thanks Pratima -Original Message- From: Gogineni, Pratima Sent: Tuesday, July 10, 2001 9:33 PM To: '[EMAIL PROTECTED]' Subject: would transactional token help in this case? (could be a threadin g issue?) Hi, I have an application in which I havent used transactional tokens. I have a text field where I defined a onchange=preprocess() which sets a value and then submits the form. Heres the behaviour I see: a. It works 'perfectly' when I change the value and move the focus out of this text box (it gets submitted). b. It works 'alright' (for some reason this takes longer to process than the above case) when I hit enter in the text field c. It sometimes throws an error when I do step (a) followed by step (b) without waiting for the control to return from step (a). The kind of error I am getting (I would have to explain my program in detail to exactly say what this error is) leads me to suspect that two threads are trying to access/change the data in the form bean. Has anyone seen this behaviour before or knows if using transactional tokens would help in this case? (I am suspecting not from what I know of the way they work ...) Also note that this form/application worked well when I did not use onclick - i.e. using the default behaviour of submitting the value of the text field when you hit enter ... Thanks Pratima -Original Message- From: Ryan Cornia [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 10, 2001 7:49 AM To: [EMAIL PROTECTED] Subject: Error-page in web.xml I'm hoping someone can help me understand this better. In web.xml, I have the following entries - error-page exception-typejava.lang.Exception/exception-type location/errorpage.jsp/location /error-page error-page exception-typejavax.servlet.ServletException/exception-type location/errorpagesrvlt.jsp/location /error-page From my understanding, anytime an Exception, or ServletException occurs in my application, it will call either errorpage.jsp or errorpagesrvlt.jsp. Is that correct? Does it matter if the exception occurs in a JSP or a servlet? This seems to work in Tomcat, but with SilverStream, I don't get taken to the error page, but get the SilverStream generate error message. In my errorpage.jsp I have - %@ page language=Java isErrorPage=true% is that right? Thanks for any insite, this is driving me crazy. Ryan
RE: struts and Jrun 3.0
I got this error a couple of times without any reason too. JRUN 3.0 has jsp cacheing problems and shutting down the server, deleteing the cached jsp pages and restarting solves this problems in most cases. Our sales rep said these problems were fixed in 3.1. If your webapp is called testApp it would have created a jsp directory under WEB-INF/ just delete all these files and then start the server again -Original Message-From: Rama Krishna [mailto:[EMAIL PROTECTED]]Sent: Wednesday, July 11, 2001 4:02 PMTo: [EMAIL PROTECTED]Subject: struts and Jrun 3.0 is there any problem with JRun 3.0 and struts. cause my development m/c has JRun 3.1 and everything worked fine. when i tried to put it on staging with JRun 3.0 is it like JRun 3.0 doesn't work with struts or ??? it gives me the following error: javax.servlet.ServletException: nulljava.lang.AbstractMethodErrorat allaire.jrun.jsp.JSPServlet.servletNeedsCreating(JSPServlet.java:312)at allaire.jrun.jsp.JSPServlet.loadPage(JSPServlet.java:188)at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java:168)at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)at allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)at org.apache.struts.action.ActionServlet.processActionForward(ActionServlet.java:1747)at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1584)at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:490)at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)at allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1131)at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:330)at allaire.jrun.jrpp.ProxyEndpoint.run(ProxyEndpoint.java:354)at allaire.jrun.ThreadPool.run(ThreadPool.java:267)at allaire.jrun.WorkerThread.run(WorkerThread.java:74) thanks, rama.
RE: struts and Jrun 3.0
It retains but I guess its safer to backup ... -Original Message-From: Rama Krishna [mailto:[EMAIL PROTECTED]]Sent: Wednesday, July 11, 2001 4:33 PMTo: [EMAIL PROTECTED]Subject: Re: struts and Jrun 3.0 you are right. thanks. i did the way you said and that error is gone. now the problem is with setLocale(...) which is a known JRun problem. if i upgrade jrun does it retain the existing applications in the current version or should i recreate all those??? - Original Message - From: Gogineni, Pratima To: '[EMAIL PROTECTED]' Sent: Wednesday, July 11, 2001 4:10 PM Subject: RE: struts and Jrun 3.0 I got this error a couple of times without any reason too. JRUN 3.0 has jsp cacheing problems and shutting down the server, deleteing the cached jsp pages and restarting solves this problems in most cases. Our sales rep said these problems were fixed in 3.1. If your webapp is called testApp it would have created a jsp directory under WEB-INF/ just delete all these files and then start the server again -Original Message-From: Rama Krishna [mailto:[EMAIL PROTECTED]]Sent: Wednesday, July 11, 2001 4:02 PMTo: [EMAIL PROTECTED]Subject: struts and Jrun 3.0 is there any problem with JRun 3.0 and struts. cause my development m/c has JRun 3.1 and everything worked fine. when i tried to put it on staging with JRun 3.0 is it like JRun 3.0 doesn't work with struts or ??? it gives me the following error: javax.servlet.ServletException: nulljava.lang.AbstractMethodErrorat allaire.jrun.jsp.JSPServlet.servletNeedsCreating(JSPServlet.java:312)at allaire.jrun.jsp.JSPServlet.loadPage(JSPServlet.java:188)at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java:168)at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)at allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)at org.apache.struts.action.ActionServlet.processActionForward(ActionServlet.java:1747)at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1584)at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:490)at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)at allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1131)at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:330)at allaire.jrun.jrpp.ProxyEndpoint.run(ProxyEndpoint.java:354)at allaire.jrun.ThreadPool.run(ThreadPool.java:267)at allaire.jrun.WorkerThread.run(WorkerThread.java:74) thanks, rama.
transaction=true in html:link - bug or feature
Hi, I was using the transaction= true flag in the html:link tag. What I found was that the token is not placed in the url params unless there is a either paramId or name specified - I wanted to do this so I had to use a dummy url parameter to do this. I am not sure if this this a bug or if it is as designed ... I am using 1.0 release build Thanks Pratima -Original Message- From: Trieu, Danny [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 11, 2001 1:40 PM To: '[EMAIL PROTECTED]' Subject: RE: transactional token does anyone know where to find out how to use transactional token in struts? Thanks, -Original Message- From: Gogineni, Pratima [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 11, 2001 10:30 AM To: Gogineni, Pratima; '[EMAIL PROTECTED]' Subject: RE: transactional token clearly - I dotn understand the transaction tokens very well ... I just looked at the html:form tag and it seems they are adding the token in there if one is present in the session? Why is this behaviour as opposed to what is done in the html:link tag? so to use a transactional token with a form I have to set one in the session? thanks Pratima -Original Message- From: Gogineni, Pratima Sent: Wednesday, July 11, 2001 10:22 AM To: '[EMAIL PROTECTED]' Subject: transactional token Hi, I find that I would like to include transactional tokens from my jsp page - I see that there is a transaction=true on the html:link tag but not on the html:form tag. I am planning to add this on the html:form tag as well. I just wanted to check with people on this list if there was a reason/problem why this wasnt done in the implementation of struts itself. Also is it considered a bad practise to saveTokens from the JSP pages at request time rather than in an action? Thanks Pratima -Original Message- From: Gogineni, Pratima Sent: Tuesday, July 10, 2001 9:33 PM To: '[EMAIL PROTECTED]' Subject: would transactional token help in this case? (could be a threadin g issue?) Hi, I have an application in which I havent used transactional tokens. I have a text field where I defined a onchange=preprocess() which sets a value and then submits the form. Heres the behaviour I see: a. It works 'perfectly' when I change the value and move the focus out of this text box (it gets submitted). b. It works 'alright' (for some reason this takes longer to process than the above case) when I hit enter in the text field c. It sometimes throws an error when I do step (a) followed by step (b) without waiting for the control to return from step (a). The kind of error I am getting (I would have to explain my program in detail to exactly say what this error is) leads me to suspect that two threads are trying to access/change the data in the form bean. Has anyone seen this behaviour before or knows if using transactional tokens would help in this case? (I am suspecting not from what I know of the way they work ...) Also note that this form/application worked well when I did not use onclick - i.e. using the default behaviour of submitting the value of the text field when you hit enter ... Thanks Pratima -Original Message- From: Ryan Cornia [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 10, 2001 7:49 AM To: [EMAIL PROTECTED] Subject: Error-page in web.xml I'm hoping someone can help me understand this better. In web.xml, I have the following entries - error-page exception-typejava.lang.Exception/exception-type location/errorpage.jsp/location /error-page error-page exception-typejavax.servlet.ServletException/exception-type location/errorpagesrvlt.jsp/location /error-page From my understanding, anytime an Exception, or ServletException occurs in my application, it will call either errorpage.jsp or errorpagesrvlt.jsp. Is that correct? Does it matter if the exception occurs in a JSP or a servlet? This seems to work in Tomcat, but with SilverStream, I don't get taken to the error page, but get the SilverStream generate error message. In my errorpage.jsp I have - %@ page language=Java isErrorPage=true% is that right? Thanks for any insite, this is driving me crazy. Ryan
RE: Any more suggestions (Action Classes) WON'T COMPILE.
put
the ApplicationMapping under
classes/org/apache/struts/action
the
package declaration is "package org.apache.struts.action; "
when
compiling the classes directory struts.jarshould be in the
classpath.
-Original Message-From: Chuck Amadi
[mailto:[EMAIL PROTECTED]]Sent: Tuesday, July 10, 2001
7:31 AMTo: Craig R. McClanahanSubject: Any more
suggestions (Action Classes) WON'T COMPILE.Hi all , well
i have tried everthing in the book/doc's to no avail, I would like to know
that say for instance if one declare a full classpath name i.e package
classes/org/apache/struts/action; dir or does on just say declare package
action; As i am still having problems with the Action Classes errors
below.Also i have a modified Action class as per visual Pls check it out .
note briefly i am unable to compile the .java classes.
WEB-INF/classes/org/apache/struts/action/ActionMapping.java [85:1]
Class ActionMapping not found in type declaration or import. public final
class ApplicationMapping extends ActionMapping {
^ WEB-INF/classes/org/apache/struts/action/ActionMapping.java [85:1]
Public class action.ApplicationMapping is defined in
C:\jakarta-tomcat-3.2.2\webapps\bbnpa\WEB-INF\classes\org\apache\struts\action\ActionMapping.java
and must be defined in a file called "ApplicationMapping.java". public
final class ApplicationMapping extends ActionMapping {
^ 3 errors Errors compiling ActionMapping.
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would transactional token help in this case? (could be a threading issue?)
Hi, I have an application in which I havent used transactional tokens. I have a text field where I defined a onchange=preprocess() which sets a value and then submits the form. Heres the behaviour I see: a. It works 'perfectly' when I change the value and move the focus out of this text box (it gets submitted). b. It works 'alright' (for some reason this takes longer to process than the above case) when I hit enter in the text field c. It sometimes throws an error when I do step (a) followed by step (b) without waiting for the control to return from step (a). The kind of error I am getting (I would have to explain my program in detail to exactly say what this error is) leads me to suspect that two threads are trying to access/change the data in the form bean. Has anyone seen this behaviour before or knows if using transactional tokens would help in this case? (I am suspecting not from what I know of the way they work ...) Also note that this form/application worked well when I did not use onclick - i.e. using the default behaviour of submitting the value of the text field when you hit enter ... Thanks Pratima -Original Message- From: Ryan Cornia [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 10, 2001 7:49 AM To: [EMAIL PROTECTED] Subject: Error-page in web.xml I'm hoping someone can help me understand this better. In web.xml, I have the following entries - error-page exception-typejava.lang.Exception/exception-type location/errorpage.jsp/location /error-page error-page exception-typejavax.servlet.ServletException/exception-type location/errorpagesrvlt.jsp/location /error-page From my understanding, anytime an Exception, or ServletException occurs in my application, it will call either errorpage.jsp or errorpagesrvlt.jsp. Is that correct? Does it matter if the exception occurs in a JSP or a servlet? This seems to work in Tomcat, but with SilverStream, I don't get taken to the error page, but get the SilverStream generate error message. In my errorpage.jsp I have - %@ page language=Java isErrorPage=true% is that right? Thanks for any insite, this is driving me crazy. Ryan
RE: validation
When I say I have my validation logic in the perform method - I just mean that this is where I am doing the validation. But the logic (most of it) is in separate classes. I would guess this is upto the user to decide whether to put in the perform method directly or use classes of their own for validation. Did you mean something else when you say validation in separate classes? Also I image the business logic validation is highly specific to the situation and I cant think what kind of framework you can provide for this - other than just call a validate method ... thanks pratima -Original Message- From: Rey Francois [mailto:[EMAIL PROTECTED]] Sent: Monday, July 02, 2001 9:48 AM To: '[EMAIL PROTECTED]' Subject: RE: validation Ted, Do you think this approach of splitting validation between both the ActionForm.validate() and the Action.perform() is the most desirable? Somehow I have the feeling that by extracting these validations into separate classes is a better approach because it makes it easier to reuse the validation logic, which is one of the benefit of having validation framework. The real question then is whether this framework should only do the domain-type checking or should also support the business logic checking. I think it should support both, especially if you can also separate them within the same framework. Fr. -Original Message- From: Ted Husted [mailto:[EMAIL PROTECTED]] Sent: 02 July 2001 18:04 To: [EMAIL PROTECTED] Subject: Re: validation The general thinking is that there are at least two levels of validation. First, there is the simple domain-type checking, such as fields that are suppose to be numeric should contain only numerals. Second, there is business-logic checking, like invoice numbers are all greater than 1000 or no start dates should occur before 1984, or that the username and password match. The first type is easy to automate and doesn't require access to the business logic, so we have a standard method that you can override if you want to do that as part of your ActionForm. With that method, there would not be a good place for you to plug-in simple validations. The second type gets to be application specific, and is usually handled in the Action perform method. Since you are already overriding perform, there didn't seem to be much value in providing a yet another method to override here. -- Ted Husted, Husted dot Com, Fairport NY USA. -- Custom Software ~ Technical Services. -- Tel 716 737-3463. -- http://www.husted.com/about/struts/ Gogineni, Pratima wrote: Please let me know if I am missing something / got something wrong ... I which case should we not have a validate method in the action classes too? On second thoughts ...I guess if there is some validation common to all the actions its probably better to place it in the actionform even if it means looking at information outside the view/form itself? I which case should we not have a validate method in the action classes too? Thanks Pratima The information in this email is confidential and is intended solely for the addressee(s). Access to this email by anyone else is unauthorised. If you are not an intended recipient, you must not read, use or disseminate the information contained in the email. Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Capco. http://www.capco.com ***
RE: validation
thanks Ill take a look at both these tonight. pratima -Original Message- From: Rey Francois [mailto:[EMAIL PROTECTED]] Sent: Monday, July 02, 2001 5:02 AM To: '[EMAIL PROTECTED]' Subject: RE: validation Don't forget as well the validation framework from David, which normally should be integrated into Struts at some point. Fr. -Original Message- From: Rey Francois Sent: 02 July 2001 13:58 To: '[EMAIL PROTECTED]' Subject: RE: validation There would a few pros and cons for each of the approaches you mention, making the choice difficult. A third approach is to have the validation extracted into another set of classes, so that neither the ActionForm nor the Action itself contain the real validation logic. The mapper framework I'm working on does such a thing. I've made an early release available on Ted Husted site (http://www.husted.com/about/struts/resources.htm#extensions) if you're curious. Fr. -Original Message- From: Gogineni, Pratima [mailto:[EMAIL PROTECTED]] Sent: 29 June 2001 18:45 To: '[EMAIL PROTECTED]' Subject: RE: validation On second thoughts ...I guess if there is some validation common to all the actions its probably better to place it in the actionform even if it means looking at information outside the view/form itself? -Original Message- From: Gogineni, Pratima Sent: Friday, June 29, 2001 9:41 AM To: '[EMAIL PROTECTED]' Subject: validation Hi, I have a design question about validation in struts. So far I had been doing most of my validation in my action classes rather than in my actionform. I was just looking into moving some of the validation into the validate method of the action form and find that I have to access some information in the servlet context to do this since the action form itself does not have all the information to do the complete validation. I was thinking that this has a couple of problems - 1. performance since I have to access the same info again in the action classes. 2. I feel it is messy because I am making my actionform which is just a piece/view of the whole picture access information that is outside the view itself ... All of the above leads me to believe that most of the heavy duty validation should happen in the action class. The actionform only does some minor validation like maybe checking for null (basically just using the information it knows). I which case should we not have a validate method in the action classes too? Please let me know if I am missing something / got something wrong ... Thanks Pratima The information in this email is confidential and is intended solely for the addressee(s). Access to this email by anyone else is unauthorised. If you are not an intended recipient, you must not read, use or disseminate the information contained in the email. Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Capco. http://www.capco.com ***
RE: validation
On second thoughts ...I guess if there is some validation common to all the actions its probably better to place it in the actionform even if it means looking at information outside the view/form itself? -Original Message- From: Gogineni, Pratima Sent: Friday, June 29, 2001 9:41 AM To: '[EMAIL PROTECTED]' Subject: validation Hi, I have a design question about validation in struts. So far I had been doing most of my validation in my action classes rather than in my actionform. I was just looking into moving some of the validation into the validate method of the action form and find that I have to access some information in the servlet context to do this since the action form itself does not have all the information to do the complete validation. I was thinking that this has a couple of problems - 1. performance since I have to access the same info again in the action classes. 2. I feel it is messy because I am making my actionform which is just a piece/view of the whole picture access information that is outside the view itself ... All of the above leads me to believe that most of the heavy duty validation should happen in the action class. The actionform only does some minor validation like maybe checking for null (basically just using the information it knows). I which case should we not have a validate method in the action classes too? Please let me know if I am missing something / got something wrong ... Thanks Pratima
RE: Generic handling of properties
www.mail-archive.com -Original Message- From: Gangadharappa, Kiran [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 28, 2001 9:13 AM To: '[EMAIL PROTECTED]' Subject: RE: Generic handling of properties Hi Niall, I am kind of new to this mailing list. Any idea where I can find the archives? regards Kiran -Original Message- From: Niall Pemberton [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 28, 2001 4:08 AM To: [EMAIL PROTECTED] Subject: RE: Generic handling of properties Wait for dynamic properties to arrive in Struts (might be a while) or do it yourself. There are messages in the archive discussing how people have done this. Niall -Original Message- From: Gangadharappa, Kiran [mailto:[EMAIL PROTECTED]] Sent: 28 June 2001 00:52 To: '[EMAIL PROTECTED]' Subject: Generic handling of properties hi, In my application contents of the Form are database driven. Is there anyway I could use Struts here? What I mean is I can not pre-define a custom Form class since getter and setters are not completely known initially. Any ideas? Regards Kiran
RE: Frustrated, can anyone help?
Can you try moving the application.properties file under web-inf/classes. Also I remember reading that the strut.jar file should be under struts example\web-inf\lib and there were errors when you try to put it into the appserver classpath ... -Original Message- From: Wes Bramhall [mailto:[EMAIL PROTECTED]] Sent: Tuesday, June 26, 2001 9:31 AM To: '[EMAIL PROTECTED]' Subject: Frustrated, can anyone help? Ok... I've tried and tried to figure this out, with some help from this group, to no avail. I'm just trying to get the example to run. I'm going to try some more. I'm running JRUN on a Win2k box, so any help either needs to be specific to JRUN so I can use it, or totally generalized, so I can hopefully figure out how things relate and go from there. Attached are my web.xml, struts-config.xml, and ApplicationResources.properties. They are all located in C:\Program Files\Allaire\JRun\servers\default\Struts Example\WEB-INF\ Struts.jar is in C:\Program Files\Allaire\JRun\servers\lib, which is in the classpath of the JRUN server. This is the error I get: 500 Internal Server Error /struts-example/: Exception thrown processing JSP page. javax.servlet.jsp.JspException: Missing message for key index.title at org.apache.struts.taglib.bean.MessageTag.doStartTag(MessageTag.java:242) at jrun__index2ejspa._jspService(jrun__index2ejspa.java:57) at allaire.jrun.jsp.HttpJSPServlet.service(../jsp/HttpJSPServlet.java:39) at allaire.jrun.jsp.JSPServlet.service(../jsp/JSPServlet.java:228) at allaire.jrun.jsp.JSPServlet.service(../jsp/JSPServlet.java:196) at allaire.jrun.servlet.JRunSE.service(../servlet/JRunSE.java:1416) at allaire.jrun.session.JRunSessionService.service(../session/JRunSessionServic e.java:1082) at allaire.jrun.servlet.JRunSE.runServlet(../servlet/JRunSE.java:1270) at allaire.jrun.servlet.JRunRequestDispatcher.forward(../servlet/JRunRequestDis patcher.java:89) at allaire.jrun.file.FileServlet.service(../file/FileServlet.java:159) at allaire.jrun.servlet.JRunServletPool.service(../servlet/JRunServletPool.java :90) at allaire.jrun.servlet.JRunSE.service(../servlet/JRunSE.java:1416) at allaire.jrun.session.JRunSessionService.service(../session/JRunSessionServic e.java:1082) at allaire.jrun.servlet.JRunSE.runServlet(../servlet/JRunSE.java:1270) at allaire.jrun.servlet.JRunRequestDispatcher.forward(../servlet/JRunRequestDis patcher.java:89) at allaire.jrun.servlet.JRunSE.service(../servlet/JRunSE.java:1552) at allaire.jrun.servlet.JRunSE.service(../servlet/JRunSE.java:1542) at allaire.jrun.servlet.JvmContext.dispatch(../servlet/JvmContext.java:364) at allaire.jrun.http.WebEndpoint.run(../http/WebEndpoint.java:115) at allaire.jrun.ThreadPool.run(../ThreadPool.java:272) at allaire.jrun.WorkerThread.run(../WorkerThread.java:75)
HttpSessionListener
Hi, This question is more to do with servlets not directly related to struts (other than that I am using struts) to develop this application. I was trying to find a way to detect when a session was destroyed either because the user logged out or because of a session time out or something else. I looked at the API and found that 2.3 has lifecycle events, one of them a HttpSessionListener. I am working with 2.2 I was wondering if there is an alternative to this in 2.2 how people handled this when these events didnt exist. Does one have to write a thread that continuously monitors if a session still exists? Thanks Pratima
RE: HttpSessionListener
Thanks - that helps. -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Monday, June 25, 2001 11:32 AM To: '[EMAIL PROTECTED]' Subject: Re: HttpSessionListener On Mon, 25 Jun 2001, Gogineni, Pratima wrote: Hi, This question is more to do with servlets not directly related to struts (other than that I am using struts) to develop this application. I was trying to find a way to detect when a session was destroyed either because the user logged out or because of a session time out or something else. I looked at the API and found that 2.3 has lifecycle events, one of them a HttpSessionListener. I am working with 2.2 I was wondering if there is an alternative to this in 2.2 how people handled this when these events didnt exist. Does one have to write a thread that continuously monitors if a session still exists? Thanks Pratima In servlet 2.2, the most common approach to this problem involves the use of the HttpSessionBindingListener interface. Basically, you need to arrange that, as part of your user logon processing, you create a session attribute that implements this interface. The valueBound() method will be called at this time. Now, when the session is invalidated or times out, one of the things that happens is that all session attributes are removed. Thus, the valueUnbound() method of your bean will be called, so that you can do whatever processing is required. Craig
logic tags
Hi, I am trying to see if there is a less clumsy way of doing the following ... I have a boolean bean property - I was trying to use one of the logic tags to test if this value is true. my question is why do I need to supply a value attribute even for bean properties that are boolean? I guess I am looking for an logic:if tag. Or have I not read the manual/guide properly missed something? Would the fact that there is no tag - that assumes a bean property is boolean mean that - having boolean properties is discouraged/restricted to using in special cases? for example I have to do something like this: logic:equal name=myBean property=isEditEnabled scope=session value=true !--- some code here -- /logic:equal I was hoping to do something like: logic:if name=myBean property=isEditEnabled scope=session !--- some code here -- /logic:equal Thanks Pratima
RE: Declarative security constraints
I have a general question regarding security constraints - if you are using the form based authentication - is the login page allowed to match one of the url-patterns in the security constraints. I found that this kind of set up goes into an infinite loop - understandably. The question is - it should be possible to detect this not go into an infinite loop? I couldnt find anything in the servlet spec 2.2 regarding this... thanks pratima -Original Message- From: Geddes, Mark (ANTS) [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 14, 2001 5:42 AM To: '[EMAIL PROTECTED]' Subject: RE: Declarative security constraints Craig wrote: Have you tried a URL pattern like this? url-pattern/action1.do/url-pattern The syntax of URL patterns used in security constraints is exactly like that used in servlet mappings, and this would be an exact match pattern for path /action1 (assuming you are using the usual *.do mapping for the controller servlet). Well I thought I had, but obviously I hadn't, as it works fine. Thanks. -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: 13 June 2001 18:04 To: Struts-User@Jakarta. Apache. Org (E-mail) Subject: Re: Declarative security constraints On Wed, 13 Jun 2001, Geddes, Mark (ANTS) wrote: I am using the security-constraint tag in web.xml to protect access to my pages. I have been unable to use this method to restrict access to specific requests, say 'action1.do'. I assume this is because only the resources are protected (i.e. the actual JSPs). The upshot is that I am protecting the whole web-app using url-pattern/*/url-pattern. This is fine. It is an intranet site and it means that I can use request.isUserInRole() and request.getUserPrincipal() in the confidence that I know the user has been forced to authenticate themselves. The problem comes when I want to restrict certain actions based upon the user's role. In the perform() method of my Action class I have to use request.isUserInRole(). I would like to be able to do this declaratively rather than programmatically, either using the security-constraint declaration in web.xml, or possibly as part of the action declaration in struts-config.xml. Question1: Have I missed something obvious in my use of the security-constraint mechanism? Have you tried a URL pattern like this? url-pattern/action1.do/url-pattern The syntax of URL patterns used in security constraints is exactly like that used in servlet mappings, and this would be an exact match pattern for path /action1 (assuming you are using the usual *.do mapping for the controller servlet). Question2: If not, would this make a useful extension to the Struts framework? I've thought about the idea of incorporating role-based checking into the controller servlet itself, but it seems like a duplication of what you can already do in the container (such as the above). However, a place where it might be useful is if you have a scripted workflow of some sort, and certain steps would be executed or skipped based on the roles possessed by the authenticated user. Thanks in advance. Mark Craig McClanahan *** This email message contains confidential information for the above addressee only. If you are not the intended addressee you must not disclose or use the information in any manner whatsoever. Any opinion or views contained in this email message are those of the sender, do not represent those of the Company in any way and reliance should not be placed upon its contents. Unless otherwise stated this email message is not intended to be contractually binding. Where an Agreement exists between our respective companies and there is conflict between the contents of this email message and the Agreement then the terms of that Agreement shall prevail. Abbey National Treasury Services plc. Registered in England. Registered Office: Abbey House, Baker Street, London NW1 6XL. Company Registration No: 2338548. Regulated by the SFA ***
RE: Declarative security constraints
Okay that answers my question I guess - I tried this on tomcat3.2 -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 14, 2001 12:17 PM To: '[EMAIL PROTECTED]' Subject: RE: Declarative security constraints On Thu, 14 Jun 2001, Gogineni, Pratima wrote: I have a general question regarding security constraints - if you are using the form based authentication - is the login page allowed to match one of the url-patterns in the security constraints. Yes it's allowed. Otherwise, you could not use a URL pattern like /* to protect the entire web application. I found that this kind of set up goes into an infinite loop - understandably. The question is - it should be possible to detect this not go into an infinite loop? I couldnt find anything in the servlet spec 2.2 regarding this... Tomcat 3.2, if I remember correctly, has problems with this. Tomcat 4.0 (and I'm sure other servers do to) handles it correctly. thanks pratima Craig
Re: Idle timeout Handling
A completely different approach is to use container-managed security, as described in the Servlet API Specification http://java.sun.com/products/servlet/download.html. Here, you are relying on the servlet container to manage user logon, so that you do not have to check anything on a per-request basis. Thanks, Shiraz Craig McClanahan When you use the servlet container basic authentication - the session is automatically refreshed (because the user info is sent directly from the browser) but you still may need to refresh the data/warn the user that the data has been refreshed since the user may think he is continuing from the the place he left off but ends up operating on a form-bean in the initial state. Could someone correct me if my assumption is wrong? pratima Pratima Gogineni Core Technology Selectica, Inc. 3 West Plumeria Drive San Jose CA 95134.2111 www.selectica.com Direct: 408.545.2615 Main: 408.570.9700 Mobile: 408.315.6380 Fax:408.570.2167 See our Internet Selling Systems in action: http://www.selectica.com/iss_in_action/
RE: Form-based Authentication
yes I did this. It works perfectly on tomcat also on resin. JRUN seems to have some problems with this. -Original Message- From: Matt Raible [mailto:[EMAIL PROTECTED]] Sent: Tuesday, June 12, 2001 3:14 PM To: [EMAIL PROTECTED] Subject: Form-based Authentication Has anyone implemented form-based authentication and Struts as defined by the J2EE Blueprints? http://java.sun.com/j2ee/blueprints/packaging_deployment/descriptors/index.h tml#1035772 If so, any lessons learned from the appserver you deployed in? Thanks, Matt _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
more strange JRUN behavior
I have a webapp that I have been testing under both tomcat and JRUN for sometime now. About a month ago I decided to go with app server provided form based security. I tested my app on JRUN,Tomcat and Resin and it worked fine. Since then I had been working only on tomcat - now when I tested with JRUN the login screen comes up, I enter the name and password and the screen just hangs and the progress bar tells me opening page j_security-check - now to check if it was the application that was causing the problem. I created a dummy page that does nothing as the welcome page and I CAN login. So something in my application is causing JRUN to hang at the security check - doesnt make too much sense to me. Another thing is that I disabled the authentication totally and the application works fine on JRUN. Now the question is - has anyone had similar problems with JRUN or have an idea why something like this should occur? Surely my app should not interfere with the appserver authentication - it should atleast authenticate me and then show an error page. Also works fine in tomcat No error messages in the log files... My init servlets (both Action servlet and my own custom servlet) seem to be starting up fine. Does anyone have good/bad experiences with JRUN? I have had extremely flaky behavior from JRUN. Things seem to work great on Tomcat and Resin. pratima
RE: more strange JRUN behavior
sadly - I see this in 3.0 as well as 3.1 which was very recently released. I havent tested the basic authentication as yet. I thought I would have more control using the form based authentication. I need to evaluate and see if the basic authentication works fine - else I should probably go with custom authentication I went through their forums too and found messages about the form based authentication. Pratima -Original Message- From: George Craig [mailto:[EMAIL PROTECTED]] Sent: Saturday, June 09, 2001 7:28 PM To: [EMAIL PROTECTED] Subject: Re: more strange JRUN behavior I, too, have observed this intermittent quirkiness in its authentication behavior. After reading all of their forum posts, the consensus is to use Basic authentication. I concur that it has been the most stable for container authentication in J-Run. I would shy away from Form-based authentication until Macromedia has stabilized it in the next release (to some extent IIRC, even they acknowledge its shortcomings.) However, I realize this might not be an option for you. For us, we've opted to use SiteMinder. george - Original Message - From: Gogineni, Pratima [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, June 09, 2001 8:16 PM Subject: more strange JRUN behavior I have a webapp that I have been testing under both tomcat and JRUN for sometime now. About a month ago I decided to go with app server provided form based security. I tested my app on JRUN,Tomcat and Resin and it worked fine. Since then I had been working only on tomcat - now when I tested with JRUN the login screen comes up, I enter the name and password and the screen just hangs and the progress bar tells me opening page j_security-check - now to check if it was the application that was causing the problem. I created a dummy page that does nothing as the welcome page and I CAN login. So something in my application is causing JRUN to hang at the security check - doesnt make too much sense to me. Another thing is that I disabled the authentication totally and the application works fine on JRUN. Now the question is - has anyone had similar problems with JRUN or have an idea why something like this should occur? Surely my app should not interfere with the appserver authentication - it should atleast authenticate me and then show an error page. Also works fine in tomcat No error messages in the log files... My init servlets (both Action servlet and my own custom servlet) seem to be starting up fine. Does anyone have good/bad experiences with JRUN? I have had extremely flaky behavior from JRUN. Things seem to work great on Tomcat and Resin. pratima
JSP translated to Tags???
Speaking of JRUN - I was playing with their latest version 3.1 and they have a very strange concept/tool .. You can write jsp pages and name them with a *.jst extension and they get translated to a custom tag instead of to a servlet. I thought it was not a good idea - jsp to create tags to use in jsp? and i guess you lose quite a bit of control on how it is translated etc. and I dont see why writing the code as scriptlets in the jsp page is better than writing the tag handler classes your self? Does any one see any merits in this approach? pratima -Original Message- From: Gogineni, Pratima Sent: Saturday, June 09, 2001 9:24 PM To: '[EMAIL PROTECTED]' Subject: RE: more strange JRUN behavior sadly - I see this in 3.0 as well as 3.1 which was very recently released. I havent tested the basic authentication as yet. I thought I would have more control using the form based authentication. I need to evaluate and see if the basic authentication works fine - else I should probably go with custom authentication I went through their forums too and found messages about the form based authentication. Pratima -Original Message- From: George Craig [mailto:[EMAIL PROTECTED]] Sent: Saturday, June 09, 2001 7:28 PM To: [EMAIL PROTECTED] Subject: Re: more strange JRUN behavior I, too, have observed this intermittent quirkiness in its authentication behavior. After reading all of their forum posts, the consensus is to use Basic authentication. I concur that it has been the most stable for container authentication in J-Run. I would shy away from Form-based authentication until Macromedia has stabilized it in the next release (to some extent IIRC, even they acknowledge its shortcomings.) However, I realize this might not be an option for you. For us, we've opted to use SiteMinder. george - Original Message - From: Gogineni, Pratima [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, June 09, 2001 8:16 PM Subject: more strange JRUN behavior I have a webapp that I have been testing under both tomcat and JRUN for sometime now. About a month ago I decided to go with app server provided form based security. I tested my app on JRUN,Tomcat and Resin and it worked fine. Since then I had been working only on tomcat - now when I tested with JRUN the login screen comes up, I enter the name and password and the screen just hangs and the progress bar tells me opening page j_security-check - now to check if it was the application that was causing the problem. I created a dummy page that does nothing as the welcome page and I CAN login. So something in my application is causing JRUN to hang at the security check - doesnt make too much sense to me. Another thing is that I disabled the authentication totally and the application works fine on JRUN. Now the question is - has anyone had similar problems with JRUN or have an idea why something like this should occur? Surely my app should not interfere with the appserver authentication - it should atleast authenticate me and then show an error page. Also works fine in tomcat No error messages in the log files... My init servlets (both Action servlet and my own custom servlet) seem to be starting up fine. Does anyone have good/bad experiences with JRUN? I have had extremely flaky behavior from JRUN. Things seem to work great on Tomcat and Resin. pratima
app server authentication - frames
Hi, I have a question I hoping some one might have some ideas on how to accomplish this ... I am using the appsever based authentication - so I have a html page that login.html. now my welcome page is a frame that has two jsp pages in it. unfortunately when I logon I see the login page in both the frames. The only way I can think of around this is to have a hidden jsp page as a welcome page so that this page just redirects to the frames based page if you are logged on else to the logon page... Does anyone know of any other way around this? thanks pratima -Original Message- From: Ted Husted [mailto:[EMAIL PROTECTED]] Sent: Friday, June 08, 2001 1:55 PM To: [EMAIL PROTECTED] Subject: Re: Scratch RowSets Just as an aside, Oleg: When I use RowSets as value object beans, the type is determined by the JDBC metadata. I've been putting some wrappers around that so the properties have ordinary getters and setters. I see that BeanFactory includes code to create tables, but what about reading tables to create beans? Oleg V Alexeev wrote: Hello Ted, Thank for good stub. Now I am trying to implement such approach in my extension to struts - BeanFactoryServlet.
RE: Scratch RowSets
Hi Ted,
I remember playing with cached rowsets sometime ago. It is probably useful
to standardize your tags/code etc. based on the cached rowset rather than
create your own data-structure - but I found that particularly the
update/delete/insert into the rowset doesnt work properly for all but the
simplest tables.
I am currently implementing my own web-app(struts-based) that could handle
more cases - one thing with this is that the user can specify the
update/insert/delete in an xml file to configure my rowset - since I think
it is not possible to anticipate in all cases what statements they would
want to use. This also allows them to fire off multiple statements (for
data-integrity reasons or something else) in a transaction for each of the
actions update/insert/delete ...
Pratima
-Original Message-
From: Ted Husted [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 07, 2001 4:39 AM
To: [EMAIL PROTECTED]
Subject: Re: Scratch RowSets
Ted Husted wrote:
Now, the next step is to create a RowSet from scratch to insert a new
record to a new table. Given this, there doesn't seem to be any reason
to have a seperate value object bean for a data set that is coming from
or going to a persistent store.
In case anyone is interested, all I did was select a record that wasn't
there (primary key=0), and, bingo-bango, CachedRowSet created an empty
but valid RowSet, ready to receive new rows.
So, now instead of duplicating the data in my own set of properties, I'm
using the CachedRowSet's storage locations directly through a thin
wrapper with conventional mutators and accessors. This reduces the
overhead of redundant storage, retains all the flexibility of a standard
value object, is compatible with existing code bases, and can also
leverage the type casting built into RowSets.
[ DBMS ] - [ RowSet ] - [ ActionForm - RowSet ] -
[ DBMS ] - [ RowSet ] - [ JSP or ActionForm ]
And, of course, a RowSet can be treated just like a ResultSet in a JSP,
but without the overhead of an open connection.
A full treatment will follow, but here are some snippets.
ResultValue.java
// a RowSet Iterator wrapper subclassed as a
// value object wrapper around a CachedRowSet (whew!)
/**
* Return the account
*/
public String getAccount() {
try {
return values.getString(account);
}
catch (SQLException sqle) {
return null;
}
}
// .. more property wrappers
/**
* Bulk mutator for data transfer from another object
*/
public void set(
String bid, String lot, String amount, String account,
String precedence, String bidType, String bidFrom, String
pickup
) throws SQLException {
values.updateString(bid_key,bid);
values.updateString(lot,lot);
values.updateString(amount,amount);
values.updateString(account,account);
values.updateString(bidder_key,precedence);
values.updateString(bidType,bidType);
values.updateString(bidFrom,bidFrom);
values.updateString(pickup,pickup);
}
/**
* Convenience constructor to set internal RowSet
*/
public ResultValue(RowSet values) {
super(values);
}
Result.java
// encapsulates instance of ResultValue with other
// helper properties and serves as a data access object
public int insert() throws SQLException {
ResultValue resultValue = (ResultValue) getRows();
// MySQL can't insert via a RowSet, so use a Statement instead
return Statements.bidInsert(
resultValue.getLot(),
resultValue.getAmount(),
resultValue.getAccount(),
resultValue.getPrecedence(),
resultValue.getBidType(),
resultValue.getBidFrom(),
resultValue.getPickup()
);
}
Access.java (an Action)
// selects appropriate classes and
// methods for given request task
// -- INSERT --
if (task.equals(insert)) {
// Instantiate blank RowSet
result = thisResult.select(); // key=0
resultValue =
(ResultValue) thisResult.getRows();
// Create new row in empty set
resultValue.moveToInsertRow();
// Transfer data
resultValue.set(
thisForm.getBid(),
thisForm.getLot(),
thisForm.getAmount(),
thisForm.getAccount(),
thisForm.getPrecedence(),
thisForm.getBidType(),
thisForm.getBidFrom(),
thisForm.getPickup()
);
// Execute insert command for this Result object
result = thisResult.insert();
// Analyze outcome
if (result==0) {
message = error.database.error;
}
more connection pool problems ....
I see the following strange behavior or JRUN and *Not* on TOMCAT. I have an access database that is registered as an ODBC user dsn - the connection pool finds the datasource the runs fine in tomcat but when the same war file is running in JRUN a URI not found exception is thrown. But if create a system dsn both tomcat and jrun find the datasource without any problem. would anyone happen to have an idea as to why this should occur? I am using the JDBC-ODBC bridge as the driver .. thanks pratima
RE: more connection pool problems ....
Title: more connection pool problems
Thanks
- there is no problem with running under the system dsn -I was just
wondering why I should see different behavior on the two
appservers.
I
didnt see anything in the documentation but the JRun news groups seems to have
several threads and which ended with an answer from the JRun engineers saying
that they should use a system dsn rather than user dsn, since user dsn's are not
detected under certain circumstances. No reason given for
this.
Could
you as you said it runs under system account ...
Thanks
Pratima
-Original Message-From: Roman Fail
[mailto:[EMAIL PROTECTED]]Sent: Thursday, May 24, 2001 5:28
PMTo: [EMAIL PROTECTED]Subject: RE: more
connection pool problems
The most likely reason is that Jrun runs under the SYSTEM account or some
other account besides the one you are logged in with. A "User" DSN works
with one specific account only. I guess Tomcat runs under the currently
logged in user. Consult the JRun docs to find out what account it runs
under - it may even run under several accounts at different times, including
the IUSR Internet Guest Account. You would have to set up a User DSN for
each of these accounts if that is the case.
What theproblem with running it as a System DSN anyway?
Security issues?
Roman
-Original Message----- From: Gogineni,
Pratima Sent: Thu 5/24/2001 3:49 PM To:
'[EMAIL PROTECTED]' Cc: Subject: more
connection pool problems
I see the following strange behavior or JRUN and *Not* on
TOMCAT.I have an access database that is registered as an ODBC "user
dsn" - theconnection pool finds the datasource the runs fine in tomcat
but when thesame war file is running in JRUN a URI not found exception
is thrown. But ifcreate a "system dsn" both tomcat and jrun find the
datasource without anyproblem.would anyone happen to have an
idea as to why this should occur? I am usingthe JDBC-ODBC bridge as the
driver
..thankspratima
RE: Where's the best place to do authentication
Gregor the example application has the tag to check for logged in user in the jsp page. But in addition to this - they also check if the user is logged in in each action class. Another thing is the tag is not really authenticating the user but just checkign if the user has been authenticated, so that the user cant even see the jsp rather than find out upon performing some action in the page that he is not authenticated. pratima -Original Message- From: Gregor Rayman [mailto:[EMAIL PROTECTED]] Sent: Tuesday, May 22, 2001 3:59 AM To: [EMAIL PROTECTED] Subject: Re: Where's the best place to do authentication Jon.Ridgway [EMAIL PROTECTED] writes: Hi Shogo, Have a look at the 'example' webapp provided with struts, this uses a taglib to check the user is logged on, I'm sure you could use/amend it to fit your purpose. Jon. I am not very happy with taglibs checking for logged in user. Taglibs can be used only in JSP and JSP should implement the View part of the MVC pattern. Authenticating users is bussiness logic and so it shoud be done somewhere in the actions. -- gR
RE: Splitting up struts-config.xml
Hi, I needed to have my data-sources in a different file from the rest of the connection pool. Since the rest of the file was static but the connection information was varying between different users. I ended up modifying the actionservlet to load this from a separate file. which can be inside the war file or even specified as an initialization parameter. pratima -Original Message- From: Mikkel Bruun To: 'Doug Way '; '[EMAIL PROTECTED] ' Sent: 5/19/01 12:32 AM Subject: RE: Splitting up struts-config.xml WE ran in to similar problem a couple of months ago (just not with struts, another mvc framework)... We simply recodede our xml properties loading method to grab it from a central http url... So now all delopers would have to work on ONE xml, which was placed centrally, and managed by Visual Source Safe... Thats how we avoided having to merge several config files... Mikkel -Original Message- From: Doug Way To: [EMAIL PROTECTED] Sent: 19-05-2001 01:11 Subject: Splitting up struts-config.xml I'm working as part of a team on a large-ish web application using struts. There are several of us currently working on the struts/jsp side of things, and there's now quite a bit of stuff (action mappings, etc.) in the struts-config.xml file, so each of us has to change this file fairly often, and we're often in conflict with each other. (I guess part of the problem is that we're using a source code management tool (SourceOffSite) with a pessimistic check-in/check-out system, without automated merging.) Anyway, is there some way to split up the contents of struts-config.xml, so that it's not one huge file? (Maybe with includes, or something similar?) - Doug Way [EMAIL PROTECTED]
connection pool problem (with Beta release)
I have a very odd problem - I was hoping the symptoms sound familiar to someone on the list... I display a database table to the user in the jsp page the user can insert/delete or update into this table - this is sent to an action class that uses the struts connection pool and executes the appropriate sql statement After executing the sql statement I go back to jsp page that displays the data in the table. my problem is that I need to query the database twice before the new data is shown (for example if I add row#11). I see only 10 rows the first time I query the database after the insert statemetn is executed. The second time I query the database I get all 11 rows. I have autoCommit set to false. I call the commit() method on the connection after the insert statement is executed and I have the transaction isolation set to TRANSACTION_READ_COMMITTED. Another symptom is that I dont always see this problem - only in some runs, which leads me to suspect that this is a threading issue? Does anyone know what the problem could be / what I should check/lookout for? Thanks Pratima -Original Message- From: Roy Truelove [mailto:[EMAIL PROTECTED]] Sent: Monday, May 14, 2001 7:51 PM To: [EMAIL PROTECTED] Subject: Web design forum / listserv Hey guys, I'd like to know if anyone knows of a listserv / forum / newsgroup that deals solely with web application design philosophies, and not necessarily with their implementations. I read several lists (this one, Turbine, JSP, barracuda,) and most of the traffic is geared toward problems *using* the framework. A place where people could go and discuss things like MVCm2, push/pull etc. I believe would be very beneficial. If someone knows of a forum like this, please let me know. Thanks! -Roy
RE: connection pool problem (with Beta release)
Okay another symptom - the problem persists even when i set the isolation to read_uncommitted. -Original Message- From: Gogineni, Pratima Sent: Tuesday, May 15, 2001 3:35 PM To: '[EMAIL PROTECTED]' Subject: connection pool problem (with Beta release) I have a very odd problem - I was hoping the symptoms sound familiar to someone on the list... I display a database table to the user in the jsp page the user can insert/delete or update into this table - this is sent to an action class that uses the struts connection pool and executes the appropriate sql statement After executing the sql statement I go back to jsp page that displays the data in the table. my problem is that I need to query the database twice before the new data is shown (for example if I add row#11). I see only 10 rows the first time I query the database after the insert statemetn is executed. The second time I query the database I get all 11 rows. I have autoCommit set to false. I call the commit() method on the connection after the insert statement is executed and I have the transaction isolation set to TRANSACTION_READ_COMMITTED. Another symptom is that I dont always see this problem - only in some runs, which leads me to suspect that this is a threading issue? Does anyone know what the problem could be / what I should check/lookout for? Thanks Pratima -Original Message- From: Roy Truelove [mailto:[EMAIL PROTECTED]] Sent: Monday, May 14, 2001 7:51 PM To: [EMAIL PROTECTED] Subject: Web design forum / listserv Hey guys, I'd like to know if anyone knows of a listserv / forum / newsgroup that deals solely with web application design philosophies, and not necessarily with their implementations. I read several lists (this one, Turbine, JSP, barracuda,) and most of the traffic is geared toward problems *using* the framework. A place where people could go and discuss things like MVCm2, push/pull etc. I believe would be very beneficial. If someone knows of a forum like this, please let me know. Thanks! -Roy
RE: dynamically build HTML forms
Hi, in my current project I am generating forms dynamically in the action classes - based on an xml configuration file. It is probably a little more work but I feel it is possible to get it to work ... Pratima -Original Message- From: Hartmut Bernecker To: [EMAIL PROTECTED] Sent: 5/5/01 10:50 AM Subject: dynamically build HTML forms Hi, I came across the following statement: The Struts framework lacks what is called dynamic properties, or the ability to use meta data to drive the creation of forms and the associated ActionForm. This means it is impractical to dynamically build a HTML form using a separate, predefined data source (such as a XML file or database table). When a project requires database-driven form design it would be best to design special Model I-based JSP pages for this task. Keep in mind, it is still possible to use Struts in other areas of your project. The Struts team is well aware of this limitation arising from the lack of dynamic properties. This feature is planned for version 1.1 of Struts. (http://www.jspinsider.com/tutorials/jsp/struts/strutsadvance.html) But what I'd like to do is precisely this: Creating HTML forms dynamically. Is there another way besides using Model 1-based JSP pages for this task? I appreciate any clue in this matter. TIA __ Hartmut Bernecker Heinrich-Rorbeck-Weg 30 73614 Schorndorf Tel. 0 71 81 / 25 75 39 Fax. 0 71 81 / 25 75 41 [EMAIL PROTECTED] __
RE: database connection
in the databaseservlet class do: getServletContext().getAttribute(key); -Original Message- From: Ying Teng To: [EMAIL PROTECTED] Sent: 5/4/01 8:17 AM Subject: RE: database connection Yes, I can get the DataSource reference in the ServletContext object of the ActionServlet class. But I want to get the reference to the dataSource in the DatabaseServlet class. Can anyone tell me how to get the reference to the dataSource from the databaseServlet class? Thanks. Ying -Original Message- From: Vivek Bhaskaran [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 03, 2001 5:21 PM To: [EMAIL PROTECTED] Subject: Re: database connection A reference to the DataSource is stored in the ServletContext object... You can get it from that. - Original Message - From: Ying Teng [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, May 03, 2001 11:28 AM Subject: RE: database connection What you described is true. Now my question is how to get the datasource without referencing the actionServlet. I wanted to intialize the database hashtable of the databaseServlet class in the databaseServlet init function. In order to do that, I need to get the datasource. But I can not reference the actionServlet because the action is initialized after the database is initialized (as in the log file). Hope someone can give me some hints. Thanks. Ying -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 02, 2001 3:10 PM To: [EMAIL PROTECTED] Subject: RE: database connection You will add the key information to the datasource info in you struts-config.xml file it will look like this: data-sources data-source key=[some name I'll use to reference this datasource] autoCommit=false description=Data Source Configuration driverClass=org.gjt.mm.mysql.Driver maxCount=4 minCount=2 password=pass url =jdbc:mysql://bethsoft.dev.zenimax.com:3306/test?user=userpassword=pas s user=user / /data-sources Then, after that's done, the easiest way to access it is to reference it by the action servlet (servlet), because using actionServlet you can just do servlet.findDataSource(the name you called your datasource) and voila, you have your datasource object. From that datasource object you can create a connection. If you cannot access the actionServlet, then it's a little more difficult--and actually I wouldn't be able to help much there, but at least your question would then be how do I get the datasource without referencing the actionServlet -Dallas
RE: Dynamic Error Messages
errors.add(ActionErrors.GLOBAL_ERROR, new
ActionError(view.construction.error, e.getMessage()));
in the application.properties you should have:
view.construction.error=liCould not construct view because: {0}/li
e.getMessage() is substituted instead of {0}
-Original Message-
From: Darryl
To: [EMAIL PROTECTED]
Sent: 5/4/01 7:18 AM
Subject: Dynamic Error Messages
I can't figure out how to return dynamic error messages in the
ActionErrors collection. In other words, if an exception is thrown in an
Action object, I want to use the e.getMessage() to get the message
description and use that to populate an ActionError. The ActionError
class doesn't seem to have a constructor that supports this. Help!
- Darryl
RE: database connection
look at your web.xml file - you should have two servlet elements there one for DatabaseServlet and the other for ActionServlet. each of them has a load-on-startup element. set the load-on-startup element of the actionservlet to 1 and that of databaseservlet to 2. to indicate that the database servlet should be loaded first. -Original Message- From: Ying Teng To: Gogineni, Pratima Sent: 5/4/01 12:10 PM Subject: RE: database connection I tried that. The ServletContext object does not have that attribute. If you look at the servlet.log file, the system initializes the database first and then action, datasource. So I am wondering how to let the system initializes the datasourc first so in the databaseServlet class, we can have access to the datasource. My idea is to enable the system to write the database info to the database.xml file when the database is initialized. Thanks. -Original Message- From: Gogineni, Pratima [mailto:[EMAIL PROTECTED]] Sent: Friday, May 04, 2001 3:00 PM To: 'Ying Teng '; '[EMAIL PROTECTED] ' Subject: RE: database connection in the databaseservlet class do: getServletContext().getAttribute(key); -Original Message- From: Ying Teng To: [EMAIL PROTECTED] Sent: 5/4/01 8:17 AM Subject: RE: database connection Yes, I can get the DataSource reference in the ServletContext object of the ActionServlet class. But I want to get the reference to the dataSource in the DatabaseServlet class. Can anyone tell me how to get the reference to the dataSource from the databaseServlet class? Thanks. Ying -Original Message- From: Vivek Bhaskaran [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 03, 2001 5:21 PM To: [EMAIL PROTECTED] Subject: Re: database connection A reference to the DataSource is stored in the ServletContext object... You can get it from that. - Original Message - From: Ying Teng [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, May 03, 2001 11:28 AM Subject: RE: database connection What you described is true. Now my question is how to get the datasource without referencing the actionServlet. I wanted to intialize the database hashtable of the databaseServlet class in the databaseServlet init function. In order to do that, I need to get the datasource. But I can not reference the actionServlet because the action is initialized after the database is initialized (as in the log file). Hope someone can give me some hints. Thanks. Ying -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 02, 2001 3:10 PM To: [EMAIL PROTECTED] Subject: RE: database connection You will add the key information to the datasource info in you struts-config.xml file it will look like this: data-sources data-source key=[some name I'll use to reference this datasource] autoCommit=false description=Data Source Configuration driverClass=org.gjt.mm.mysql.Driver maxCount=4 minCount=2 password=pass url =jdbc:mysql://bethsoft.dev.zenimax.com:3306/test?user=userpassword=pas s user=user / /data-sources Then, after that's done, the easiest way to access it is to reference it by the action servlet (servlet), because using actionServlet you can just do servlet.findDataSource(the name you called your datasource) and voila, you have your datasource object. From that datasource object you can create a connection. If you cannot access the actionServlet, then it's a little more difficult--and actually I wouldn't be able to help much there, but at least your question would then be how do I get the datasource without referencing the actionServlet -Dallas
RE: Internationalised strings and scriptlets
I havent tried this but I am guessing you could get hold of the pagecontext
object and get a reference to the applicationresources from it - similar to
what you would do in a custom tag implementation.
-Original Message-
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: 5/3/01 1:45 AM
Subject: Internationalised strings and scriptlets
Is it possible to access internationalised messages from inside
scriptlets?
For example consider a dropdown list populated with text strings
produced by a
bean:message ... / tag. I then want to do some processing based on a
user
selection:
%
String selectedItem = request.getParameter( dropDown );
String internationalisedString = ???
if ( selectedItem.equals( internationalisedString ) )
{
// do something
}
%
How do I get a value for codeinternationalisedString/code?
Thanks,
Sam
--
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RE: Shopping Cart Project
I cant access this page either. -Original Message- From: Joseph Hakim [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 02, 2001 6:19 AM To: [EMAIL PROTECTED] Subject: RE: Shopping Cart Project Ok. My apologies to those that couldn't access the website. The webserver was running at port 800. Since this is a non-standard http port, some firewalls chose to block access. I've moved it to port 80, so there should be no more access prolems. Access the website as normal by pointing your browser to http://mycart.cjb.net/ Thanks to Mats Josefsson for bringing this to my attention. Regards, Joseph Hakim. -Original Message- From: Joseph Hakim [mailto:[EMAIL PROTECTED]] Sent: Wednesday, 2 May 2001 11:00 PM To: [EMAIL PROTECTED] Subject: RE: Shopping Cart Project It's definitely getting hits. I checked the logs. Also got a friend to test it from another ISP. Try it again. Let me know if you have any further problems :-) Joseph. -Original Message- From: Sridhar H C [mailto:[EMAIL PROTECTED]] Sent: Wednesday, 2 May 2001 11:05 PM To: 'Joseph Hakim' Subject: RE: Shopping Cart Project Yep. Thanks for the mail. I am prepared to code using struts framework. Regards, Sridhar -Original Message- From: Joseph Hakim [SMTP:[EMAIL PROTECTED]] Sent: Wednesday, May 02, 2001 5:24 PM To: [EMAIL PROTECTED] Subject: Shopping Cart Project Hi, Thanks for expressing your interest in the shopping cart project. I'm sure you are as excited as I am to get things underway, so I've taken the liberty of preparing a few things. Namely a quick website located at http://mycart.cjb.net/ and a mailing list dedicated to this project. Please join the mailing list by visiting the website ! Looking forward to coding with you :-) Regards, Joseph Hakim. _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
RE: localization hor html tags
This problem seems similar to yesterdays html:message tag. check if applciation.properties exists and is specified in web.xml. Also check if a message with the key you are using exists. -Original Message- From: Hartmut Bernecker [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 02, 2001 6:44 AM To: [EMAIL PROTECTED] Subject: Re: localization hor html tags Hi, is in version 1.0 another way to localize HTML-Elements??? What I try, is: -- html:submit value=bean:message key=xy.test.btn.submit// But this don't work: --- org.apache.jasper.compiler.ParseException: T:\webapps\webclient\login.jsp(38,96) Attribute xy.test.btn.submit has no value Thank u for your time! Hartmut Bernecker Mike Fitterman schrieb: This is may be left over from the struts version 0.5 days when their was one tag library rather than multiple. They probably didn't clean it up. Mike. At 11:01 AM 4/26/2001 -0700, you wrote: I could use localized name in a button tag using construct like : input type=button value=bean:message key=/ / Are there any lighter way to specify i18n key for html tags. Thanks, -- Eugene Krivopaltsev Sun Microsystems, Inc. [EMAIL PROTECTED] 901 San Antonio Road Voice: 650.786.6260 (x86260)Palo Alto, CA. 94303 Fax: 650.786.7816 www.sun.com Mike Fitterman1 Network Drive UBUR02-207 Solaris Software Group Burlington, MA 01803-0902 Sun Microsystems, Inc 781-442-0843 -- _ Hartmut Bernecker Dipl.-Wirtschaftsinformatiker (BA) Electronic Publishing ASIM(r) - CONTENT MANAGEMENT AT ITS BEST Druckhaus Waiblingen Siemenstrasse 10 D-71332 Waiblingen, Germany Tel.: +49 (0)71 51 / 5 66 - 4 48 Fax:+49 (0)71 51 / 5 66 - 3 23 Mail: mailto:[EMAIL PROTECTED] Web:http://www.dhw.de/
RE: struts on Tomcat 3.3-m2
I believe flush buffer was added in servlet api 2.2 - maybe you have an older jarfile in your path. -Original Message- From: Nanduri, Amarnath [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 02, 2001 6:35 AM To: '[EMAIL PROTECTED]' Subject: struts on Tomcat 3.3-m2 Hi All, I am getting the following error when trying to run a Struts App on Tomcat 3.3-m2 . The application works fine with WebLogic 6. Am i doing anyting wrong ? Thanks a lot. cheers, Amar.. 2001-05-02 09:30:27 - /onboard.presentation: compile error: req=R( /onboard.presentation + /login.jsp + null) - org.apache.jasper.JasperException: Unable to compile C:\tomcat\work\DEFAULT\onboard.presentation\login_1.java:374: No method matching flushBuffer() found in class org.apache.jasper.runtime.JspWriterImpl. ((org.apache.jasper.runtime.JspWriterImpl)out).flushBuffer(); ^ 1 error at org.apache.tomcat.facade.JasperLiaison.javac(JspInterceptor.java:682) at org.apache.tomcat.facade.JasperLiaison.processJspFile(JspInterceptor.java:59 3) at org.apache.tomcat.facade.JspInterceptor.requestMap(JspInterceptor.java:410) at org.apache.tomcat.core.ContextManager.processRequest(ContextManager.java, Compiled Code) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java, Compiled Code) at org.apache.tomcat.core.ContextManager.service(ContextManager.java, Compiled Code) at org.apache.tomcat.modules.server.Http10Interceptor.processConnection(Http10I nterceptor.java:143) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java, Compiled Code) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav a, Compiled Code) at java.lang.Thread.run(Thread.java:479)
RE: Struts on Tomcat 4.0-b3
are you wroking on solaris by any chance? -Original Message- From: Nanduri, Amarnath [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 02, 2001 6:03 AM To: '[EMAIL PROTECTED]' Subject: Struts on Tomcat 4.0-b3 Hi Guys, I was trying to use Struts on Tomcat 4.0 Beta 3. I am getting the following errors when starting up Tomcat. Anybody out there can point out my problem ? Thanks a lot. cheers, Amar.. A nonfatal internal JIT (3.10.107(x)) error 'Relocation error: NULL relocation t arget' has occurred in : 'org/apache/crimson/parser/Parser2.maybeComment (Z)Z': Interpreting method. Please report this error in detail to http://java.sun.com/cgi-bin/bugreport.cg i A nonfatal internal JIT (3.10.107(x)) error 'Relocation error: NULL relocation t arget' has occurred in : 'org/apache/crimson/parser/Parser2.maybeComment (Z)Z': Interpreting method. Please report this error in detail to http://java.sun.com/cgi-bin/bugreport.cg i A nonfatal internal JIT (3.10.107(x)) error 'Relocation error: NULL relocation t arget' has occurred in : 'org/apache/crimson/parser/Parser2.maybeComment (Z)Z': Interpreting method. Please report this error in detail to http://java.sun.com/cgi-bin/bugreport.cg i Starting service Tomcat-Apache Apache Tomcat/4.0-b3
RE: html:message tag
Just checking ... you do have an ApplicationResources.properties file and a message for the key you are using in the tag in that file? -Original Message- From: Sue Deng To: [EMAIL PROTECTED] Sent: 5/1/01 11:10 AM Subject: Re: html:message tag I did not make any changes on the code. What do you mean the app server? I am using jakarta-struts-1.0-b1 under Tomcat. What should I do now? Thanks, -Sue Jason Chaffee wrote: Have you made any changes to the code? The ActionServlet should be creating the resource bundle and storing in the servlet context using this key. What app server are you using? There could be a bug in how it stores objects in the servlet context, thus the ActionServlet can't find anything that has previously been stored there. -Original Message- From: Sue Deng [ mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] ] Sent: Tuesday, May 01, 2001 9:39 AM To: [EMAIL PROTECTED] Subject: Re: html:message tag Thanks, Jason. But when I use bean:message, I got Cannot find message resources under key org.apache.struts.action.MESSAGE error. Thanks, -Sue Jason Chaffee wrote: it should be bean:message -Original Message- From: Sue Deng [ mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] ] Sent: Monday, April 30, 2001 5:26 PM To: [EMAIL PROTECTED] Subject: html:message tag Hi, I am trying to build form using struts taglib. But I get no such tag message ...error when I use html:message tag. I found that struts-html.tld and struts-bean.tld files do not have a tag named message, but the struts example uses that tag. Why? Thanks, -Sue
RE: jsp include exception when using struts on weblogic 6
Amarnath, I can do include within an include - though I am using struts with tomcat. Maybe weblogic doesnt support this? Pratima -Original Message-From: Nanduri, Amarnath [mailto:[EMAIL PROTECTED]]Sent: Tuesday, May 01, 2001 12:38 PMTo: '[EMAIL PROTECTED]'Subject: RE: jsp include exception when using struts on weblogic 6 Been There . Done That. Still crashes with some other exception.. I was wondering if i am stepping outside the bounds of the jsp specifications. Thanks. cheers, Amar.. -Original Message-From: Chen, Yong [mailto:[EMAIL PROTECTED]]Sent: Tuesday, May 01, 2001 3:14 PMTo: '[EMAIL PROTECTED]'Subject: RE: jsp include exception when using struts on weblogic 6 JSP spec says: %@ include is a directive, it is effective in the translation-time, it is static jsp:include is an action, it is done in request-time, thus it can be static and dynamic. Your code is trying to do some dynamic including, so use jsp:include instead. Yong Chen -Original Message-From: Nanduri, Amarnath [mailto:[EMAIL PROTECTED]]Sent: Tuesday, May 01, 2001 12:51 PMTo: '[EMAIL PROTECTED]'Subject: jsp include exception when using struts on weblogic 6 Hi Guys, This question is irrelevant to struts and more to do with jsp's. My sincerest apologies if i have offended anyone I am getting a nasty exception when i try to do the following... I am basically including an 'include' in an 'include'. Basically page1.jsp includes a page2.jsp. In page2.jsp i make a decision as to whether to include page3.jsp (or) page4.jsp ... Basically the syntax is... page1.jsp -- if some condition satisfied %@ include file="page2.jsp" % page2.jsp -- if some condition satisfied %@ include file="page3.jsp" % else %@ include file="page4.jsp" % I am using struts1.0 on weblogic 6. The exception i get is below... I tried changing the include to a jsp:include/. If so i get an other nasty exception. Any help by the gurus is highly appreciated. May 1, 2001 1:42:06 PM EDT Error HTTP [WebAppServletContext(7292498,onboard.presentation)] Servlet failed with Exceptionjava.lang.RuntimeException: Could not parse embedded JSP code: weblogic.utils.ParsingException: nested TokenStreamException: antlr.TokenStreamException: Could not include include/Mobile_menu.jsp at weblogic.servlet.jsp.JspLexer.parseJspCode(JspLexer.java:1090) at weblogic.servlet.jsp.JspLexer.parseJspCode(JspLexer.java:1065) at weblogic.servlet.jsp.JspLexer.parseJspCode(JspLexer.java:1058) at weblogic.servlet.jsp.JspLexer.buildTimeInclude(JspLexer.java:855) at weblogic.servlet.jsp.JspLexer.mINCLUDE_DIRECTIVE(JspLexer.java:3733) at weblogic.servlet.jsp.JspLexer.mDIRECTIVE(JspLexer.java:3506) at weblogic.servlet.jsp.JspLexer.mSTANDARD_THING(JspLexer.java:1807) at weblogic.servlet.jsp.JspLexer.mTOKEN(JspLexer.java:1648) at weblogic.servlet.jsp.JspLexer.nextToken(JspLexer.java:1530)
RE: html:message tag
Jason
- I assumed that load-on-startup is an optional element and only required to
specify the order. i.e. if this is not specified the appserver loads teh
servlet in any order it likes???
if
this is the case then the actionservlet shoudl have been loaded before the jsp
page was compiled unless - the jsp page was also specified in teh deployment
descriptor to be precompiled?
-Original Message-From: Jason Chaffee
[mailto:[EMAIL PROTECTED]]Sent: Tuesday, May 01, 2001 3:41
PMTo: '[EMAIL PROTECTED]'Subject: RE:
"html:message" tag
Your
ActionServlet needs to be loaded to create an instance of the
ResourceBundle. Therefore, if you were requesting a jsp page without
going through the ActionServlet, there will not be a ResourceBundle in the
servlet context because this happens when the ActionServlet is
initialized.
-Original Message-From: Sue Deng
[mailto:[EMAIL PROTECTED]]Sent: Tuesday, May 01, 2001 1:47
PMTo: [EMAIL PROTECTED]Subject: Re:
"html:message" tagI would like to share what I did
wrong before: I forgot to put the line
"load-on-startup2/load-on-startup" in web.xml file.
After I add this line, my jsp works. So, why is this line so important
for using bean:message lag?
Thanks,
-Sue
Jason Chaffee wrote:
I find the following configuration easier:
Simply put the the resouce file in /WEB-INF/classes
directory.
Then change the deployment descriptor as follows:
servlet
servlet-nameaction/servlet-name
servlet-classorg.apache.struts.action.ActionServlet/servlet-class
init-param
param-nameapplication/param-name
param-valueApplicationResources/param-value
Also, make sure there isn't a typo in your resource file
or your jsp page.
-Original Message- From:
Sue Deng [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, May 01, 2001 11:51 AM To: [EMAIL PROTECTED] Subject: Re: "html:message" tag
I put my ApplicationResources.properties file in
/usr/local/tomcat/classes/net/covalent directory
before. Now i moved it to my applications
/WEB-INF/classes/net/covalent directory. And I got "Missing
message for key logon.title" error, but the
logon.title key is in the file.
Thanks,
-Sue Ratnadeep Bhattacharjee
wrote:
Chances are the location of your ApplicationResource
file is not where ActionServlet is looking
for it. For example, if your web.xml looks as follows:
servlet
servlet-nameaction/servlet-name
servlet-classorg.apache.struts.action.ActionServlet/servlet-class
init-param
param-nameapplication/param-name
param-valuenet.covalent.ApplicationResources/param-value
then the
ApplicationResources.properties file should be in the WEB-INF/classes/net/covalent/ directory. Hope this helps.
-Deep.
I did not make any changes on the code. What do
you mean the "app server"? I am
using jakarta-struts-1.0-b1 under Tomcat. What should I
do now?
Thanks, -Sue Jason Chaffee
wrote:
Have you made any changes to the code? The
ActionServlet should becreating
the resource bundle and storing in the servlet context using
this key. What app server are you
using? There could be a bug in how
it stores objects in the servlet context, thus the ActionServlet
can'tfind anything that has
previously been stored there.
-Original Message-
From: Sue Deng [mailto:[EMAIL PROTECTED]]
Sent:
Tuesday, May 01, 2001 9:39 AM
To:
[EMAIL PROTECTED]
Subject: Re: "html:message" tag
Thanks, Jason. But when I
use bean:message, I got "Cannot
find message resources under key
org.apache.struts.action.MESSAGE" error.
Thanks,
-Sue
Jason Chaffee wrote:
it should be
bean:message
-Original Message-
From: Sue
Deng [mailto:[EMAIL PROTECTED]]
Sent:
Monday, April 30, 2001 5:26 PM
To:
[EMAIL PROTECTED]
Subject: "html:message" tag
Hi,
I am trying
to build form using struts taglib. But I get "no such tag
message ..."error when I use "html:message" tag. I
found
that
struts-html.tld and struts-bean.tld files do not have a tag named
"message",
but the struts example uses that tag. Why? Thanks,
-Sue
RE: Obtaining multilpe values from dynamically generate textboxes
Hi - I am doing something similar. Dont know if its the best way to do it. My form bean has an indexed property over a vector of values (so that its size can change dynamically ..) The form bean also has a size property which tells me how many values exist in the indexed property. in the JSP page I loop based on the size property and have html:text elements that display the indexed property in a text field. Pratima -Original Message- From: Walker, John H. [mailto:[EMAIL PROTECTED]] Sent: Friday, April 27, 2001 9:56 AM To: '[EMAIL PROTECTED]' Subject: Obtaining multilpe values from dynamically generate textboxes We have the senereo where we are dynamically generating a number of textfields. The number of textfields are not a known entity so we cannot have multiple setTextField1(), setTextField2().. . methods on the Action Form. How does struts handle this case where you basically want all the values of the textFields concatenated and passed into one Action Form method as an Array. Any ideas. Thanks John Walker
RE: Obtaining multilpe values from dynamically generate textboxes
I was suggesting a possible solution :) just wasnt sure it was the best/only way -Original Message- From: Web Programmer [mailto:[EMAIL PROTECTED]] Sent: Friday, April 27, 2001 10:30 AM To: [EMAIL PROTECTED] Subject: RE: Obtaining multilpe values from dynamically generate textboxes See Scott Walker's response to my question earlier today which worked. If you can't get it, post again. --- Gogineni, Pratima [EMAIL PROTECTED] wrote: Hi - I am doing something similar. Dont know if its the best way to do it. My form bean has an indexed property over a vector of values (so that its size can change dynamically ..) The form bean also has a size property which tells me how many values exist in the indexed property. in the JSP page I loop based on the size property and have html:text elements that display the indexed property in a text field. Pratima -Original Message- From: Walker, John H. [mailto:[EMAIL PROTECTED]] Sent: Friday, April 27, 2001 9:56 AM To: '[EMAIL PROTECTED]' Subject: Obtaining multilpe values from dynamically generate textboxes We have the senereo where we are dynamically generating a number of textfields. The number of textfields are not a known entity so we cannot have multiple setTextField1(), setTextField2().. . methods on the Action Form. How does struts handle this case where you basically want all the values of the textFields concatenated and passed into one Action Form method as an Array. Any ideas. Thanks John Walker __ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/
Session attributes in JRUN
Hi, I have a webapp based on struts that seems to be working perfectly in tomcat - when I deploy it on JRUN3.0 SP2 Some of the session attributes are lost: this is what is happening - I place an attributes X Y in the session (in an action class). I am accessing these attributes in JSP page without any problem. Then the control is sent to the next action class I get a null when I ask the session for attribute X but i get the correct value for Y. If I place only Y in the session - then Y returns null. Also this problem doesnt occur everytime I start a session - it occurs for the first session in a new browser (that too not always). I am beginning to suspect this is a JRUN bug since this problem doesnt happen with tomcat ...was wondering if anyone has had similar problems/know what the problem could be ... Thanks Pratima
datasources action servlet
Hi, I was wondering if I could configure the action servlet to pick up the datasources from a different file (not struts-config). I am trying to auto-generate the struts app for different users - the thing is the action mappings are the same for all of them so I would prefer to use a constant struts-config file for the action mappings. but the data sources are dependent on user input and know way of knowing what they could be ahead of time - I would like to place this info in a different file. Would anyone happen to know what the best way to do this is? thanks Pratima
RE: datasources action servlet
It looks like one option is to modify the dtd and declare a different entity that holds all the datasources - is there a less intrusive way/ is this recommended/strongly discouraged? thanks pratima -Original Message- From: Gogineni, Pratima Sent: Friday, March 09, 2001 12:29 PM To: '[EMAIL PROTECTED]' Subject: datasources action servlet Hi, I was wondering if I could configure the action servlet to pick up the datasources from a different file (not struts-config). I am trying to auto-generate the struts app for different users - the thing is the action mappings are the same for all of them so I would prefer to use a constant struts-config file for the action mappings. but the data sources are dependent on user input and know way of knowing what they could be ahead of time - I would like to place this info in a different file. Would anyone happen to know what the best way to do this is? thanks Pratima
hidden submit button
Hi, This is probably something very straight forward but ... I am trying to create a hidden submit button with the struts form tags. The following doesnt seem to work. Does anyone know how to get this to work? html:form action="updateDisplay.do" Start at row #: html:text property="goto" size="3" maxlength="16" onchange="submit()"/ /html:form Ive also tried using a hidden field with property as submit a hidden field with property as action Thanks Pratima
