You don't have to handle the x in the servlet.
This is simply to ensure that the URL is treated as a unique , previously
unseen URL to the browser so it doesn't find anything in it's cache.
> -----Original Message-----
> From: A mailing list about Java Server Pages specification and reference
> [mailto:[EMAIL PROTECTED]]On Behalf Of Salian, Santosh (GXS,
> TCS)
> Sent: Friday, March 30, 2001 11:33 AM
> To: [EMAIL PROTECTED]
> Subject: Re: A tip on how to avoid browser caching problems..
>
>
> Hi ,
>
> I have a question on the usage of System.currentTimeMillis() ..
>
> Do I need to Handle the "x" parameter in the Servelet ?
> If yes, How I need to handle ?
> If not, How it is used by the server ?
>
>
>
> Thanks and Regards,
> Santosh
> -----Original Message-----
> From: Ortiz, William J [mailto:[EMAIL PROTECTED]]
> Sent: Friday, March 30, 2001 2:05 PM
> To: [EMAIL PROTECTED]
> Subject: Re: A tip on how to avoid browser caching problems..
>
>
> If you are going to submit a form, do something like the following:
>
> <form action="/servlet/Whatever?x=<%= System.currentTimeMillis() %>" >
>
> if you're doing it from a link:
>
> <a href="/servlet/Whatever?x=<%= System.currentTimeMillis() %>" >click</a>
>
> this will work fine with JSP's and servlets
>
> William J Ortiz
> EDS E.Solutions/BlueSphere
> XEEP Buyout
> Phone: (716) 427-6892
> e-mail: [EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>
> e
>
>
> -----Original Message-----
> From: sufi malak [mailto:[EMAIL PROTECTED]]
> Sent: Friday, March 30, 2001 1:16 PM
> To: [EMAIL PROTECTED]
> Subject: Re: A tip on how to avoid browser caching problems..
>
>
> How did you do it please ?
>
>
> >From: "Ortiz, William J" <[EMAIL PROTECTED]>
> >Reply-To: A mailing list about Java Server Pages specification and
> > reference <[EMAIL PROTECTED]>
> >To: [EMAIL PROTECTED]
> >Subject: Re: A tip on how to avoid browser caching problems..
> >Date: Fri, 30 Mar 2001 12:06:26 -0600
> >
> >We had some problems with caching in our projects too, and the META tags
> >did'nt work (we have to use IE exclusively). After some testing
> we decided
> >to add a random number to the JSP URL's, but trying to minimize the
> >possibility to zero, we decided to add the timestamp to the url
> >(System.currentTimeMillis()). That way you will NEVER hit the
> same cached
> >page twice.
> >
> >William J Ortiz
> >EDS E.Solutions/BlueSphere
> >XEEP Buyout
> >Phone: (716) 427-6892
> >e-mail: [EMAIL PROTECTED]
> ><mailto:[EMAIL PROTECTED]>
> >e
> >
> >
> >-----Original Message-----
> >From: Duffey, Kevin [mailto:[EMAIL PROTECTED]]
> >Sent: Wednesday, March 28, 2001 5:07 PM
> >To: [EMAIL PROTECTED]
> >Subject: A tip on how to avoid browser caching problems..
> >
> >
> >Hi there all,
> >
> >I just wanted to pass on a bit of info I finally got working for web
> >browsers..just incase some of you out there may be seeing a similar
> >situation. On our site, we have 3 "top" tabs that all call the
> same one URL
> >to log in to various parts of the site. The URL the browser sees for all
> >three tabs is identical. Therefore, at times the browser does
> NOT go to the
> >server to display the page, but instead pulls it from cache.
> Before anyone
> >replies about META tags and setting headers..I have done all of
> this. I am
> >not sure if MSIE 5 has a bug with this, or not, but I also see
> this happen
> >sometimes on Netscape 6. Therefore I tend to think despite trying to tell
> >the browser never to cache a page, it still does. It mostly
> seems to happen
> >if you rapidly click between the tabs that go to the same URL.
> Most of the
> >time it works right..it goes to the server. I think what happens
> is, BEFORE
> >the page is fully displayed if you click on a link again the browser does
> >not at that moment have a page in memory with META tags or what
> not telling
> >it not to cache..so it simply pulls the SAME page from its cache. I don't
> >think this is the fault of the browser..per se. What I think browsers
> >should
> >do is NOT allow another link to be clickable when a link is clicked until
> >the page is done loading, or the STOP button is pressed. At any rate,
> >someone once told me a while back a "trick" to force the browser to go to
> >the server EVERY time is to add a random number to the URL. There are
> >probably a couple of ways this can be done. However, if you generate a
> >dynamic page with links having hardcoded random numbers, its
> again possible
> >that while the page is being loaded, the hard-coded link is
> being looked at
> >and is already in the cache so it reloads that cached page again,
> >effectively not working. So what I did is I created a simple javascript
> >that
> >ALL links would call. Instead of <a href="page.jsp">click</a>,
> you would do
> >something like <a href="javascript: handleLink('page.jsp')">click</a>.
> >Then,
> >the method would simply add a random number to it, and then cause the
> >location to change of the page (or frame). I am not sure if this suffers
> >the
> >same problem as the hard-coded href links, but it at least is working for
> >me
> >right now. I have yet to see a cached page come back.
> >
> >Just thought I would pass that in..if it helps anyone else out there.
> >
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