Try this .It will work.I have used it to prevent
caching in JSP.
with warm regds,
E.M.S.vasu
--- "Middleton, Jorge Luis" <[EMAIL PROTECTED]>
wrote:
> Did you try with this header?
>
> response.setHeader("Pragma", "No-cache");
> --> response.setHeader("Cache-Control",
> "no-cache");
> response.setDateHeader("Expires",0);
>
> Saludos
> Jorge Middleton
> Argentina - Mendoza
>
> -----Original Message-----
> From: Celeste Haseltine
> [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, May 17, 2001 4:50 PM
> To: [EMAIL PROTECTED]
> Subject: How to prevent IE from cacheing a JSP page
>
>
> I'm hoping someone out here has run into this
> problem, and has found a way
> to address this. I've researched this for two days,
> and have not found a
> solution.
>
> I have 2 jsp files, one that includes server side
> JavaScript to create a
> DHTML menu dynamically. In order for these two
> jsp's to work properly, I
> have to determine what JS files to "include" in the
> JSP page based off of
> the user's login, and I also do this dynamically.
> Both of these files work
> perfectly if I test my web site using Netscape, but
> not with IE. From doing
> some research, I have discovered that Netscape does
> not cache pages, and
> that I can set the expiration of a page to "0" so
> that a particular JSP is
> always recompiled, regardless of the date. But IE
> does cache pages, and
> ignores any commands to set a page's expiration to
> 0. So if I am using
> Netscape, both the JSP's are recompiled to include
> their user specific JS
> code based off of the user's login, and each user
> get his/her specific menu
> JS code. But in IE, the most recent JSP page on the
> server, inclusive of
> that page's menu specific JS code, is sent to the
> browser, regardless of
> what the user's login is. I've tried to work around
> this by using the META
> tags in my JSP files as follows:
>
> <head>
> <META HTTP-EQUIV="expires" CONTENT="0">
> <META HTTP-EQUIV="Pragma" CONTENT="no-cache">
> </head>
>
> which had no effect at all on IE. I have since
> discovered that the current
> version of IE ignores MetaTags. So I tried to use
> the response.setHeader
> method in the jsp's as follows:
>
> <head>
> <% response.setHeader("expires","0");
> response.setIntHeader("expires",0);
> response.setHeader("Pragma","no-cache");
> %>
> </head>
>
> which also doesn't work. Does anyone know how to
> send IE a "message" via
> the HTTP header telling it NOT to cache a jsp page,
> and to also set the
> expiration on a particular page to "0", which means
> "page has immediate
> expiration"? Or is there a way to "set" the
> expiration of a jsp page in
> JRUN 3.1 environment (I could not find one)? I do
> want both of these JSP
> pages to be "recompiled" on the server side to
> include their menu specific
> JS, based off of the user's login. I know that I
> take a performance hit by
> doing this, but since it is only two pages out of
> 300, and it occurs as part
> of the log in process, it's a performance hit I can
> live with. And it beats
> the heck out of writing 11 different JSP's, each
> with their unique
> respective JS menu code.
>
> Any advice/insight would be appreciated.
>
> Celeste
>
>
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>
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