On Sun, 1 Dec 2002, raju punith wrote: > Thanks Milt for ur reply. We solved it (but waiting for any > compalints) by attaching the time stamp to the URL so that the ISP > proxy does not cache it b'cos the URL is diff for each request.
That seems like a pretty kludgey solution, frankly. Did you not check the archives for the code to set the headers such that caching is disabled? I think that's the more conventional and cleaner way to deal with this. > --- Milt Epstein <[EMAIL PROTECTED]> wrote: > > On Fri, 29 Nov 2002, Prichard-Levy Austin wrote: > > > > > Problems of this type can occur when an instance > > variable is > > > declared in error as static. What happens then, > > typically, is that > > > the last user (modifier) of such a variable sets > > it (via their > > > instance) for everyone rather than just for > > themselves, giving rise > > > to very strange and unpredictable behaviour. I > > came across an > > > example of this recently in a servlet I had to > > debug. I would > > > suggest you carefully re-examine the declarations > > and code of the > > > servlet concerned. Hope this helps. Austin > > > > That is, a concurrency issue. I was thinking along > > those lines at > > first as well, but then I noticed he said the right > > output was shown > > when the page was reloaded/refreshed. I think that > > makes caching the > > more likely problem here, as others have mentioned. > > > > One can check the list archives for how to disable > > caching for a page, > > there are some headers you can set to do it. > > > > > > > > from: raju punith <[EMAIL PROTECTED]> > > > > date: Thu, 28 Nov 2002 23:57:17 > > > > to: [EMAIL PROTECTED] > > > > subject: Re: hi > > > > > > > > Hi, > > > > we have a web application (student enquiry) > > using mvc > > > > architecture (jsp, servlet & java beans). > > > > > > > > the problem. > > > > > > > > student "A" accessed his details using his > > personal > > > > computer from home & got his personal details > > > > displayed properly but student "B" logged in > > from his > > > > home to access personal details but got the > > details > > > > of student "A" but not of student "B" but when > > student > > > > "B" refreshed his screen or reload the page he > > got his > > > > details, both student's use the same ISP. > > (student "B" > > > > logged in after 3 hrs from student "A") student > > "A" > > > > never used student "B"'s pc before they are two > > > > different pc's. > > > > > > > > > > > > what may be causing this error ? > > > > > > > > system details. > > > > web server : Apache 2.0 > > > > servlet container : Tomcat 4.0.4 > > > > Browser : depends on student's pc. > > > > > > > > any help would be appreciated > > > > > > > > Regards > > > > Raju Milt Epstein Research Programmer Integration and Software Engineering (ISE) Campus Information Technologies and Educational Services (CITES) University of Illinois at Urbana-Champaign (UIUC) [EMAIL PROTECTED] ___________________________________________________________________________ To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff SERVLET-INTEREST". Archives: http://archives.java.sun.com/archives/servlet-interest.html Resources: http://java.sun.com/products/servlet/external-resources.html LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
