RE: Struts Validation + Frames
hi venkatesh You are saying that using lower frame so see which to which form this page belongs to and put that form name in the validate.xml then it will display easily i am think this is the problem of placing the form name correctly suresh -Original Message- From: VENKATESH GANGAL [mailto:[EMAIL PROTECTED] Sent: Sunday, December 28, 2003 5:09 AM To: [EMAIL PROTECTED] Subject: Struts Validation + Frames Hi , I have an application with two frames , one at the top and the other the bottom. I am working on the lower frame and has problems in displaying errors after validating the form i.e when I submit only the lower part of the frame. I can see that the validate method is returning an error object but I am not able to display the errors in the same JSP but instead I get a blank page. Can anyone know how to go about handling Errors in multiple frames ??? Thanks in advance.. Cheers.. Venkat - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Struts Validation + Frames
Hi Suresh, I checked the name of the form in my validation.xml and varified that I am using the same name in my JSP also. I am able to get the Error object from my form bean but I am unable to display it on my JSP.Is there anything else that I am missing ??? Thanks for your help Cheers... Venkat On Mon, 29 Dec 2004 Suresh Korvi wrote : hi venkatesh You are saying that using lower frame so see which to which form this page belongs to and put that form name in the validate.xml then it will display easily i am think this is the problem of placing the form name correctly suresh -Original Message- From: VENKATESH GANGAL [mailto:[EMAIL PROTECTED] Sent: Sunday, December 28, 2003 5:09 AM To: [EMAIL PROTECTED] Subject: Struts Validation + Frames Hi , I have an application with two frames , one at the top and the other the bottom. I am working on the lower frame and has problems in displaying errors after validating the form i.e when I submit only the lower part of the frame. I can see that the validate method is returning an error object but I am not able to display the errors in the same JSP but instead I get a blank page. Can anyone know how to go about handling Errors in multiple frames ??? Thanks in advance.. Cheers.. Venkat - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Struts Validation + Frames
Hi , I have an application with two frames , one at the top and the other the bottom. I am working on the lower frame and has problems in displaying errors after validating the form i.e when I submit only the lower part of the frame. I can see that the validate method is returning an error object but I am not able to display the errors in the same JSP but instead I get a blank page. Can anyone know how to go about handling Errors in multiple frames ??? Thanks in advance.. Cheers.. Venkat
Struts and frames: what about the request scope?
Hi all, I'm trying to use struts with frame but the problem I have is that forms disappear from the request scope when I forward to an jsp containing a frameset to other actions like this: !-- jsp containing form submitting to someAction -- action path=/somePage forward=/WEB-INF/pages/some-page.jsp/ action path=/someAction input=/somePage.do name=SomeForm scope=request type=com.mycompany.actions.SomeAction forward name=success path=/framesetPage.do/ forward name=failure path=/somePage.do/ /action !-- jsp containing frameset -- action path=/framesetPage forward=/WEB-INF/pages/frameset-page.jsp/ The frameset-jsp.page contains a frameset like this: frameset framespacing=0 rows=50,*, html:frame frameborder=1 frameName=top-frame action=topFrame.do/ html:frame frameborder=1 frameName=bottom-frame action=bottomFrame.do/ /frameset Now in the actions topFrame and bottomFrame the form SomeForm does not appear in the request scope. Why is this? Rightnow I solved it by putting SomeForm in the session scope is that the only solution? I don't think that is a clean one anyway. Thanks for any help and regards, Jeroen -- X-Hive Corporation e-mail: [EMAIL PROTECTED] phone: +31 10 2818080 http://www.x-hive.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Struts and frames: what about the request scope?
Its not found in the request scope of the frames because each frame has a DIFFERENT request. The browser will sent a seperate simultaneous request for each individual frame. If using session scope beware of potential concurrency issues as you will have multiple threads accessing the same form object. Probably wont be an issue if your just reading values for display though. -Original Message- From: Jeroen Breedveld [mailto:[EMAIL PROTECTED] Sent: Thursday, 30 October 2003 18:49 To: [EMAIL PROTECTED] Subject: Struts and frames: what about the request scope? Hi all, I'm trying to use struts with frame but the problem I have is that forms disappear from the request scope when I forward to an jsp containing a frameset to other actions like this: !-- jsp containing form submitting to someAction -- action path=/somePage forward=/WEB-INF/pages/some-page.jsp/ action path=/someAction input=/somePage.do name=SomeForm scope=request type=com.mycompany.actions.SomeAction forward name=success path=/framesetPage.do/ forward name=failure path=/somePage.do/ /action !-- jsp containing frameset -- action path=/framesetPage forward=/WEB-INF/pages/frameset-page.jsp/ The frameset-jsp.page contains a frameset like this: frameset framespacing=0 rows=50,*, html:frame frameborder=1 frameName=top-frame action=topFrame.do/ html:frame frameborder=1 frameName=bottom-frame action=bottomFrame.do/ /frameset Now in the actions topFrame and bottomFrame the form SomeForm does not appear in the request scope. Why is this? Rightnow I solved it by putting SomeForm in the session scope is that the only solution? I don't think that is a clean one anyway. Thanks for any help and regards, Jeroen -- X-Hive Corporation e-mail: [EMAIL PROTECTED] phone: +31 10 2818080 http://www.x-hive.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: RE: Struts and frames: what about the request scope?
I had this same problem on the project I am working on. Based on the functionality of the application, I could not put the form in session scope. I got around this problem by having each frame call an action that recreated the form bean in request scope and then forwarded to the frame jsp. George Its not found in the request scope of the frames because each frame has a DIFFERENT request. The browser will sent a seperate simultaneous request for each individual frame. If using session scope beware of potential concurrency issues as you will have multiple threads accessing the same form object. Probably wont be an issue if your just reading values for display though. -Original Message- From: Jeroen Breedveld [mailto:[EMAIL PROTECTED] Sent: Thursday, 30 October 2003 18:49 To: [EMAIL PROTECTED] Subject: Struts and frames: what about the request scope? Hi all, I'm trying to use struts with frame but the problem I have is that forms disappear from the request scope when I forward to an jsp containing a frameset to other actions like this: !-- jsp containing form submitting to someAction -- action path=/somePage forward=/WEB-INF/pages/some-page.jsp/ action path=/someAction input=/somePage.do name=SomeForm scope=request type=com.mycompany.actions.SomeAction forward name=success path=/framesetPage.do/ forward name=failure path=/somePage.do/ /action !-- jsp containing frameset -- action path=/framesetPage forward=/WEB-INF/pages/frameset-page.jsp/ The frameset-jsp.page contains a frameset like this: frameset framespacing=0 rows=50,*, html:frame frameborder=1 frameName=top-frame action=topFrame.do/ html:frame frameborder=1 frameName=bottom-frame action=bottomFrame.do/ /frameset Now in the actions topFrame and bottomFrame the form SomeForm does not appear in the request scope. Why is this? Rightnow I solved it by putting SomeForm in the session scope is that the only solution? I don't think that is a clean one anyway. Thanks for any help and regards, Jeroen -- X-Hive Corporation e-mail: [EMAIL PROTECTED] phone: +31 10 2818080 http://www.x-hive.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Struts and frames: what about the request scope?
Here's another possibility. In the action that forwards to frameset-page.jsp, create a Map (or Maps) containing the request parameters you want submitted to the topFrame and bottomFrame actions. Save this Map as a request attribute. Then, in frameset-page.jsp: frameset framespacing=0 rows=50,*, html:frame action=/topFrame name=paramMap frameborder=1 frameName=top-frame/ html:frame action=/bottomFrame name=paramMap frameborder=1 frameName=bottom-frame/ /frameset If the parameters you want to propogate are already contained in an action form, you could use either BeanUtils.describe of DynaActionForm.getMap to create the Map for you. Quoting George Steimer [EMAIL PROTECTED]: I had this same problem on the project I am working on. Based on the functionality of the application, I could not put the form in session scope. I got around this problem by having each frame call an action that recreated the form bean in request scope and then forwarded to the frame jsp. George Its not found in the request scope of the frames because each frame has a DIFFERENT request. The browser will sent a seperate simultaneous request for each individual frame. If using session scope beware of potential concurrency issues as you will have multiple threads accessing the same form object. Probably wont be an issue if your just reading values for display though. -Original Message- From: Jeroen Breedveld [mailto:[EMAIL PROTECTED] Sent: Thursday, 30 October 2003 18:49 To: [EMAIL PROTECTED] Subject: Struts and frames: what about the request scope? Hi all, I'm trying to use struts with frame but the problem I have is that forms disappear from the request scope when I forward to an jsp containing a frameset to other actions like this: !-- jsp containing form submitting to someAction -- action path=/somePage forward=/WEB-INF/pages/some-page.jsp/ action path=/someAction input=/somePage.do name=SomeForm scope=request type=com.mycompany.actions.SomeAction forward name=success path=/framesetPage.do/ forward name=failure path=/somePage.do/ /action !-- jsp containing frameset -- action path=/framesetPage forward=/WEB-INF/pages/frameset-page.jsp/ The frameset-jsp.page contains a frameset like this: frameset framespacing=0 rows=50,*, html:frame frameborder=1 frameName=top-frame action=topFrame.do/ html:frame frameborder=1 frameName=bottom-frame action=bottomFrame.do/ /frameset Now in the actions topFrame and bottomFrame the form SomeForm does not appear in the request scope. Why is this? Rightnow I solved it by putting SomeForm in the session scope is that the only solution? I don't think that is a clean one anyway. Thanks for any help and regards, Jeroen -- X-Hive Corporation e-mail: [EMAIL PROTECTED] phone: +31 10 2818080 http://www.x-hive.com -- Kris Schneider mailto:[EMAIL PROTECTED] D.O.Tech http://www.dotech.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Struts and frames: what about the request scope?
hi all, We use Frames in our application. We have had this problem a we use different approach. We suppose the form data is ONLY needed for the action, so the action executes and change the model as needed. The action decides which is the next page, and if it can have frames it sets a variable next in session, which indicates what the frames that must be loades in this way: Every frame in frameset is redirected to an special action frames.do with two parameters: the place where the frame is loaded and the next variable. For example: frameset ID=vis cols=261,* border=0 framespacing=1 frame name=bottomLeft src=frames.do?position=frameBottomaction=session:attribute name=next/ frame name=bottomRight src=frames.do?position=frameTopaction=session:attribute name=next/ /frameset And we have implemented the frames.do action to know which JSP must be loaded, with parameters position and next. In fact, the page that must be loaded is written in struts-config.xml in this way: action path=/frames type=package.FramesAction name=framesForm scope=request forward name=frameTop-next1 contextRelative=true path=/WEB-INF/jsp/jsp1.jsp/ forward name=frameTop-next2 contextRelative=true path=/WEB-INF/jsp/jsp2.jsp/ç So the frames.do makes a forward to the String created with position+next (the two parameter of frames.do) and we can establish the JSP in the xml file... Is this a complicated way of doing this? Sure,... above all because of my poor english :-) Regards Jose R. Díaz - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Struts with frames problem
Karnal, I know my answer comes pretty late, but nevertheless... I guess you have switched off cookies in your browser, otherwise you would not use the session. Thus, try if the session is still there, when having cookies switched on. If you still want to get your application to work when cookies are switched off (what you probably want to), then you need to url encode the src attributes of the frame tag, which ensures that the session id is appended to the url, if cookies are switched off. Refer to the java documentation, if you need any more information about url rewriting. Hope this helps, --- Matthias [EMAIL PROTECTED] wrote: Hi, Thank you very much. I could not get the same context by adding my application name to the path. But as you said, i have my actions scope is request. The same scope i am using for all the pages. All are working fine. Only with the frames, i am not getting the same session.. Can you please explain me with samples, how your stuff is working.. thanks a lot. Mouratidis, Georg To: Struts Users Mailing List [EMAIL PROTECTED] GMouratidis@h cc: (bcc: Kamal Konduru/AFS/CAPITAL) eiler.com Subject: RE: Struts with frames problem 11/20/2002 12:18 AM Please respond to Struts Users Mailing List HI Kanal, if you want do call an action from your frameset you have to use the following syntax: frame name=treeframe scrolling=Yes noresize src =/YourApplicationName/frame1.do Please pay attention to the src-Attribut. You can ommit the ApplicationName in the src attribut only the in action attribute in the html:form. You also have to be aware of the scope attribut in the appropriate action in struts-config.xml. If you use scope=request then you will get new instances. Be aware of to forward to your jsps, not to redirect if you want to keep your request-parameters. I have many frames in my application at they work all well. The main think is to think in actions. i hope i could help you. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Dienstag, 19. November 2002 21:33 To: 'Struts Users Mailing List' Subject: Struts with frames problem HI, I have problem with using frames in struts. I am using a frameset which has two frames, and i am including src for example frameset rows=80,* frameborder=NO border=0 framespacing=0 onResize =if (navigator.family == 'nn4') window.location.reload() frame name=topFrame scrolling=NO noresize src=Top.jsp frameset cols=190,* frameborder=NO border=1 framespacing=0 rows =* frame name=treeframe scrolling=Yes noresize src =frame1.do frame name=basefrm src =frame2.do /frameset /frameset In the frame1.do, i am calling frame1.jsp., in frame2.do i am calling frame2.jsp. These are in same direcotry. When i see this in action servlet. These two calls creating new sessions, rather taking from the existing session. Other than frames, other includes are not creating the sessions. it is creating lot of problems in my application. If anyone came across, please help me. thanks in advance. kamal -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Struts with frames problem
HI Kanal, if you want do call an action from your frameset you have to use the following syntax: frame name=treeframe scrolling=Yes noresize src =/YourApplicationName/frame1.do Please pay attention to the src-Attribut. You can ommit the ApplicationName in the src attribut only the in action attribute in the html:form. You also have to be aware of the scope attribut in the appropriate action in struts-config.xml. If you use scope=request then you will get new instances. Be aware of to forward to your jsps, not to redirect if you want to keep your request-parameters. I have many frames in my application at they work all well. The main think is to think in actions. i hope i could help you. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Dienstag, 19. November 2002 21:33 To: 'Struts Users Mailing List' Subject: Struts with frames problem HI, I have problem with using frames in struts. I am using a frameset which has two frames, and i am including src for example frameset rows=80,* frameborder=NO border=0 framespacing=0 onResize =if (navigator.family == 'nn4') window.location.reload() frame name=topFrame scrolling=NO noresize src=Top.jsp frameset cols=190,* frameborder=NO border=1 framespacing=0 rows =* frame name=treeframe scrolling=Yes noresize src =frame1.do frame name=basefrm src =frame2.do /frameset /frameset In the frame1.do, i am calling frame1.jsp., in frame2.do i am calling frame2.jsp. These are in same direcotry. When i see this in action servlet. These two calls creating new sessions, rather taking from the existing session. Other than frames, other includes are not creating the sessions. it is creating lot of problems in my application. If anyone came across, please help me. thanks in advance. kamal -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Struts with frames problem
Hi, Thank you very much. I could not get the same context by adding my application name to the path. But as you said, i have my actions scope is request. The same scope i am using for all the pages. All are working fine. Only with the frames, i am not getting the same session.. Can you please explain me with samples, how your stuff is working.. thanks a lot. Mouratidis, Georg To: Struts Users Mailing List [EMAIL PROTECTED] GMouratidis@h cc: (bcc: Kamal Konduru/AFS/CAPITAL) eiler.com Subject: RE: Struts with frames problem 11/20/2002 12:18 AM Please respond to Struts Users Mailing List HI Kanal, if you want do call an action from your frameset you have to use the following syntax: frame name=treeframe scrolling=Yes noresize src =/YourApplicationName/frame1.do Please pay attention to the src-Attribut. You can ommit the ApplicationName in the src attribut only the in action attribute in the html:form. You also have to be aware of the scope attribut in the appropriate action in struts-config.xml. If you use scope=request then you will get new instances. Be aware of to forward to your jsps, not to redirect if you want to keep your request-parameters. I have many frames in my application at they work all well. The main think is to think in actions. i hope i could help you. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Dienstag, 19. November 2002 21:33 To: 'Struts Users Mailing List' Subject: Struts with frames problem HI, I have problem with using frames in struts. I am using a frameset which has two frames, and i am including src for example frameset rows=80,* frameborder=NO border=0 framespacing=0 onResize =if (navigator.family == 'nn4') window.location.reload() frame name=topFrame scrolling=NO noresize src=Top.jsp frameset cols=190,* frameborder=NO border=1 framespacing=0 rows =* frame name=treeframe scrolling=Yes noresize src =frame1.do frame name=basefrm src =frame2.do /frameset /frameset In the frame1.do, i am calling frame1.jsp., in frame2.do i am calling frame2.jsp. These are in same direcotry. When i see this in action servlet. These two calls creating new sessions, rather taking from the existing session. Other than frames, other includes are not creating the sessions. it is creating lot of problems in my application. If anyone came across, please help me. thanks in advance. kamal -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Struts with frames problem
HI, I have problem with using frames in struts. I am using a frameset which has two frames, and i am including src for example frameset rows=80,* frameborder=NO border=0 framespacing=0 onResize =if (navigator.family == 'nn4') window.location.reload() frame name=topFrame scrolling=NO noresize src=Top.jsp frameset cols=190,* frameborder=NO border=1 framespacing=0 rows =* frame name=treeframe scrolling=Yes noresize src =frame1.do frame name=basefrm src =frame2.do /frameset /frameset In the frame1.do, i am calling frame1.jsp., in frame2.do i am calling frame2.jsp. These are in same direcotry. When i see this in action servlet. These two calls creating new sessions, rather taking from the existing session. Other than frames, other includes are not creating the sessions. it is creating lot of problems in my application. If anyone came across, please help me. thanks in advance. kamal -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Struts with frames problem
Kamal, If possible avoid using Frames with Struts. Check this list archive for details. If you open non-frame page first then let that page redirect to frame-set page, this way you will be part of the original session. - Manju Kamal_Konduru@ca pgroup.com To: 'Struts Users Mailing List' [EMAIL PROTECTED] cc: 11/19/2002 12:32 Subject: Struts with frames problem PM Please respond to Struts Users Mailing List HI, I have problem with using frames in struts. I am using a frameset which has two frames, and i am including src for example frameset rows=80,* frameborder=NO border=0 framespacing=0 onResize =if (navigator.family == 'nn4') window.location.reload() frame name=topFrame scrolling=NO noresize src=Top.jsp frameset cols=190,* frameborder=NO border=1 framespacing=0 rows =* frame name=treeframe scrolling=Yes noresize src =frame1.do frame name=basefrm src =frame2.do /frameset /frameset In the frame1.do, i am calling frame1.jsp., in frame2.do i am calling frame2.jsp. These are in same direcotry. When i see this in action servlet. These two calls creating new sessions, rather taking from the existing session. Other than frames, other includes are not creating the sessions. it is creating lot of problems in my application. If anyone came across, please help me. thanks in advance. kamal -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] === IMPORTANT NOTICE: This communication, including any attachment, contains information that may be confidential or privileged, and is intended solely for the entity or individual to whom it is addressed. If you are not the intended recipient, you should delete this message and are hereby notified that any disclosure, copying, or distribution of this message is strictly prohibited. Nothing in this email, including any attachment, is intended to be a legally binding signature. -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Struts and frames...
Apologies if this topic has been covered before but I've searched the archives and am still unclear. I was wondering if there is an elegant way of having ActionErrors appear in an input frame (should there be errors within the form) but having the results of the action (a db lookup for example) appear in a second, output frame should there be no validation errors. At present I've managed to get it so that the ActionErrors will appear within the output frame but really all this is doing is displaying the input form (including errors) within the output frame. I stopped it re-displaying the form itself in this frame by putting a series of logic tags around the code within the input jsp. Also, is there any more detailed information on how to configure struts in a multi-frame environment. Specifically, my application is going to need to have pop-up windows which, when closed will return to a multi-frame page. At present I can get the new window to appear but closing it does not redisplay the original page correctly. Apologies again if this topic has been done to death regards __ Steve Earl InfoGain Limited -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Struts and frames...
Thanks Rob, Unfortunately I don't really know javascript at all - which is why I was hoping to be able to do this using jsp's only and the struts framework (which I have oooh, all of 2 weeks experience with now!). I guess there's no easy way of doing this without resorting to javascript regards steve __ -Original Message- From: Rob Breeds [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 29, 2002 1:20 PM To: Struts Users Mailing List Subject: Re: Struts and frames... I asked something similar to this on jGuru Struts FAQ. I've done simple validation in a multiframe environment. I implemented the (simple) validaton in JavaScript for a form submit from one frame, with the 'target' attribute set to another frame. If the JavaScript function (invoked at form submit) detects a validation error, it allows the form submit to proceed (calling the ActionForm to produce ActionErrors) but first dynamically changes the form target to '_self' so the error messages appear in the originating form. You could also have the target (output) frame receive any ActionErrors in a JavaScript variable and have it notify the originating frame of any errors (using onLoad event), without changing the (visible) content of the target (output frame). Never done popup windows but I can feel one coming on... Rob Steve Earl stevee@Infoga To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] in.co.ukcc: Subject: Struts and frames... 29/01/2002 11:28 Please respond to Struts Users Mailing List Apologies if this topic has been covered before but I've searched the archives and am still unclear. I was wondering if there is an elegant way of having ActionErrors appear in an input frame (should there be errors within the form) but having the results of the action (a db lookup for example) appear in a second, output frame should there be no validation errors. At present I've managed to get it so that the ActionErrors will appear within the output frame but really all this is doing is displaying the input form (including errors) within the output frame. I stopped it re-displaying the form itself in this frame by putting a series of logic tags around the code within the input jsp. Also, is there any more detailed information on how to configure struts in a multi-frame environment. Specifically, my application is going to need to have pop-up windows which, when closed will return to a multi-frame page. At present I can get the new window to appear but closing it does not redisplay the original page correctly. Apologies again if this topic has been done to death regards __ Steve Earl InfoGain Limited -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Potential Concurrency Issue - Struts Forward/Frames/InternetExpl orer 6.0
Hi, We have been looking at the implementation of an out of order request detection mechanism very similar to the one built in to Struts. For a single frame application, this works as follows, upon reception of a request: 1. The action object extracts a token (if any) from the session, and stores it as 'the old token'. 2. The action object then generates a new token to identify the current request, and places this token in the session. 3. The action object compares the token it extracts from the current request (if any) with 'the old token', that previously in the session. They should match. If they don't, then the current request is classified as an 'out of order' or duplicate request. The action object can change the request's action to something else, if it is thought that duplicating the action in question might be harmful. 4. The request is forwarded to the corresponding JSP page. 5. Code on the JSP page extracts the token from the session, and makes it the value of a hidden form field. 6. If the page and its form are subsequently submitted, the token value will be submitted as part of the request. The loop begins again from step 1. The token submitted here in step 6 will be compared in step 3. This seems to work well for detecting duplicate requests resulting from the user hitting the reload/back or forward buttons on the browser. Then we tried to apply the same approach to a framed application. The problem with a framed application is that each user action can result in a number of requests, hence we can't assume that an in order request's token value should match the last one generated but one. A colleague came up with a solution for this. Instead of just getting the pages to submit whatever value they pick up from the session at time of rendering, we get each page to store the value extracted from the session at the time of rendering in a JavaScript global variable, or one on the top level window. Then, at time of submission, the page picks up this value from the JavaScript, and submits this. The rest of the process should work as before. The important point here is that this JavaScript variable is shared by all requests, and thus, we effectively end up with one token identifying each user action, rather than one for each request. All of the requests from a single user action should be submitted with the same token value. This seemed to work fine in both Internet Explorer 6.0 and Netscape 6.2. Then I discovered one problem. In a particular test case, I would get the application to carry out a Struts forward action to the page containing the frameset containing the pages in question. Then, I would invoke an action on one of those pages to see whether the application thought such a request was a duplicate or not. It should not. Generally it did not. However, about 1 in every 10 times, with Internet Explorer only, the tokens would not match, and it would come up with a false positive. It would classify the first instance of a request as a duplicate. Has anyone else seen this sort of behavior? It seems to be something peculiar to the combination of a Struts forward to a frameset followed by the action in question, when using IE only. Is is possible that this is occuring due to some sort of race condition? Any ideas welcome. Thanks, Vaughan. ___ Vaughan Jackson Development Tumbleweed Communications [EMAIL PROTECTED] / +1 (650) 216 2532 ___ -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
AW: AW: Struts and Frames
-Ursprüngliche Nachricht- Von: Matthias Bauer [mailto:[EMAIL PROTECTED]] Gesendet: Freitag, 27. Juli 2001 07:47 An: [EMAIL PROTECTED] Betreff: Re: AW: Struts and Frames Andreas, in the application we are currently developing we have a similar problem: We have three frames from which either only the frame the user is currently clicking a button in has to be reloaded or some other frames need to be refreshed as well. What we are doing is pretty simple: The request action updates the user's session state and forwards to the frameset or the single frame. In case a frame is sent back, we just return this frame, otherwise we return the whole frameset. The browser then requests the single frames from the webserver which are delivered based on the user's session state. We do not need any JavaScript for this. The only drawback is: You need to specify in the target of the link/form if the whole frameset or only the single frame needs to be updated, because the browser does the refresh on the client side. As a consequence you can not decided whether to update only the single frame or the whole frameset based on the request parameter that are sent along. Hmm, I see. Thanks for your answere. Have you tackeled the back-button resp. history problem yet? If we store the request data not in the request, but in the session the back-button becomes close to useless. Same for bookmarking. Although the web-app could with some work provide it's own means of history. Andreas
Struts and Frames
I would like to use Stuts together with HTML frames. Are there any tag libraries available? Has anybody done that before? Has anybody had good/bad experience with it? Tia, Andreas
Re: Struts and Frames
The struts tags have a target attribute that you may set to point to the desired frame. Since the target is actually handled by the browser (as where to display the results), there isn't really much handling to be done by struts. Our site has 3 frames within a frameset. We have not experienced any problems. However, we are also not moving in and out of the frames. I guess it may prove a little more difficult if you want to go from a frameset to a single frame, then back to a frameset with dynamically specified pages. Even so, this is not really a struts issue, but more of an app design issue. Pete Andreas Leitner wrote: I would like to use Stuts together with HTML frames. Are there any tag libraries available? Has anybody done that before? Has anybody had good/bad experience with it? Tia, Andreas begin:vcard n:; x-mozilla-html:FALSE org:BRIMG SRC=http://www.irista.com/images/common/logo_top_right.gif; adr:;; version:2.1 end:vcard
AW: Struts and Frames
-Ursprüngliche Nachricht- Von: Peter Alfors [mailto:[EMAIL PROTECTED]] Gesendet: Donnerstag, 26. Juli 2001 15:54 An: [EMAIL PROTECTED] Betreff: Re: Struts and Frames The struts tags have a target attribute that you may set to point to the desired frame. Since the target is actually handled by the browser (as where to display the results), there isn't really much handling to be done by struts. Our site has 3 frames within a frameset. We have not experienced any problems. However, we are also not moving in and out of the frames. I guess it may prove a little more difficult if you want to go from a frameset to a single frame, then back to a frameset with dynamically specified pages. Even so, this is not really a struts issue, but more of an app design issue. Thanks for your answere Peter. Meanwhile I have been thinking and prototyping the Frames idea a bit more through. One thing I would like to have is that only those frames get updated, that really need to. But a get/post always only updates one window. So I have been thinking about the following design: The top level frameset consists of a frame for the actual page (NonHidden) and a hidden frame (Hidden). In NonHidden there might be other arbitrarily deep nested frames and framesets. Whenever something happens (a get or post) the action mapping triggers the right functions to change the buisness objects and the always forwards to the same servlet. The target of each and every post/get will be Hidden. The servlet that is activated by each action, does not produce any code to display, but instead it has a JavaScript onLoad feature, that will reload every frame that needs to be changed. The list of frames that need to be reloaded are determinded at runtime (not sure how this will be implemented). Anyway the key is to put the Document (from the Document/View pattern) always into the session. If there is a view to display a menu, the session will have a Menu attribute. It is this attribute that the actions change if they need to and is this attribute the views read to produce HTML. Does that design strike anyone with a little more experience in web app design? (; One obvious drawback is that the browsers back button would not work, because it will not change the Document attributes in the session scope. Tia, Andreas
Re: AW: Struts and Frames
Andreas, in the application we are currently developing we have a similar problem: We have three frames from which either only the frame the user is currently clicking a button in has to be reloaded or some other frames need to be refreshed as well. What we are doing is pretty simple: The request action updates the user's session state and forwards to the frameset or the single frame. In case a frame is sent back, we just return this frame, otherwise we return the whole frameset. The browser then requests the single frames from the webserver which are delivered based on the user's session state. We do not need any JavaScript for this. The only drawback is: You need to specify in the target of the link/form if the whole frameset or only the single frame needs to be updated, because the browser does the refresh on the client side. As a consequence you can not decided whether to update only the single frame or the whole frameset based on the request parameter that are sent along. --- Matthias Andreas Leitner wrote: -Ursprüngliche Nachricht- Von: Peter Alfors [mailto:[EMAIL PROTECTED]] Gesendet: Donnerstag, 26. Juli 2001 15:54 An: [EMAIL PROTECTED] Betreff: Re: Struts and Frames The struts tags have a target attribute that you may set to point to the desired frame. Since the target is actually handled by the browser (as where to display the results), there isn't really much handling to be done by struts. Our site has 3 frames within a frameset. We have not experienced any problems. However, we are also not moving in and out of the frames. I guess it may prove a little more difficult if you want to go from a frameset to a single frame, then back to a frameset with dynamically specified pages. Even so, this is not really a struts issue, but more of an app design issue. Thanks for your answere Peter. Meanwhile I have been thinking and prototyping the Frames idea a bit more through. One thing I would like to have is that only those frames get updated, that really need to. But a get/post always only updates one window. So I have been thinking about the following design: The top level frameset consists of a frame for the actual page (NonHidden) and a hidden frame (Hidden). In NonHidden there might be other arbitrarily deep nested frames and framesets. Whenever something happens (a get or post) the action mapping triggers the right functions to change the buisness objects and the always forwards to the same servlet. The target of each and every post/get will be Hidden. The servlet that is activated by each action, does not produce any code to display, but instead it has a JavaScript onLoad feature, that will reload every frame that needs to be changed. The list of frames that need to be reloaded are determinded at runtime (not sure how this will be implemented). Anyway the key is to put the Document (from the Document/View pattern) always into the session. If there is a view to display a menu, the session will have a Menu attribute. It is this attribute that the actions change if they need to and is this attribute the views read to produce HTML. Does that design strike anyone with a little more experience in web app design? (; One obvious drawback is that the browsers back button would not work, because it will not change the Document attributes in the session scope. Tia, Andreas
Struts and Frames
I'm working to build a web based application using Struts. Currently we have a mocked-up prototype which uses frames (iframes in particular) to control what gets displayed on the screen. In general the format of our or pages consists of three frames: Top (header/navigation stuff) Main (the thing the user is currently doing) Footer I've tried to "strutsifiy" this prototype but I haven't quite figured out the best way to handle things. The one thing I did was convert the footer from "footer.html" to "footer.jsp". This lets me dynamically change the content of the footer. This seems to work. I then tried to modify the main body. I started by making the main body point to my "logon.do" action. This worked fine. The screen came up and my logon stuff was in the middle frame. However, once the user logged on, my middle pane went blank. In my config, I had the logon page forward to my success action, but my success action never displayed. Is there anything special I need to do to make my struts application usable in a framed environment? Thanks!
AW: Struts and Frames
No, I guess not. We make heavy use of framesets and frames and we did not config anything special. You should use the target-property of your form in the logon.jsp to point the result to the frame you came from. Oliver -- Original Nachricht -- I'm working to build a web based application using Struts. Currently we have a mocked-up prototype which uses frames (iframes in particular) to control what gets displayed on the screen. In general the format of our or pages consists of three frames: Top (header/navigation stuff) Main (the thing the user is currently doing) Footer I've tried to "strutsifiy" this prototype but I haven't quite figured out the best way to handle things. The one thing I did was convert the footer from "footer.html" to "footer.jsp". This lets me dynamically change the content of the footer. This seems to work. I then tried to modify the main body. I started by making the main body point to my "logon.do" action. This worked fine. The screen came up and my logon stuff was in the middle frame. However, once the user logged on, my middle pane went blank. In my config, I had the logon page forward to my success action, but my success action never displayed. Is there anything special I need to do to make my struts application usable in a framed environment? Thanks!
