Bartsch Axel <[EMAIL PROTECTED]> wrote:
>Does anybody know if it is possible for a servlet to setup the target for the frame
>of the browser during processing?
>
>The situation:
>The user clicks to load a page: normally the page is loaded into the center frame:
>but if the session has expired a login page shall be shown and this page should be
>loaded into the _top frame (=the complete browser window).
>
>Now I am doing this with the following JAVASCIPT command set in the login page:
>
>if (window != top) top.location.href = location.href;
>
>It works: but the problem is that this JAVASCRIPT command leads to a new servlet
>request:
>and if you had originally used a POST request all the posted data is lost and I also
>need that data for the login page.
>With a GET request it works.
>
>So is there a solution where the servlet during its processing can change the frame
>target e.g. in case the session has expired?
Remember the a servlet only sends content when requested. It is the HTTP request that
specifies where the result will be displayed. That means that you have little choice
but to do as you are (although you may not need to use JavaScript): when a page
request is made with an expired session, the response will be a page that simply
requests the login page in the _top frame.
As for the POST, remember that the information should be available to the servlet, so
it can certainly populate the login page redirector appropriately.
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