You set up a listener for a session to end and then do
something. I did this in Tomcat 3.1, but there was a
bug and if the user just closed the browser the event
didn't occur (if they clicked on my logout action,
then it worked (session.invalidate())). So I also
made a thread that checked every so often and after a
certain amount of time I removed the lock.
David
--- Tony Riyanto <[EMAIL PROTECTED]> wrote:
> Hi there,
>
> I want to implement an applicatif lock mechanism.
> In my web-site, I have a set of pages that can
> modify some global informations (let's say for
> example the list of administrators).
> I want to refuse access to these modification pages
> when somebody is currently modifying this
> information.
>
> I think of creating a Singleton class that
> implements a lock variable. But my problem is, how
> we can prevent the case where a person access to
> these pages (thus positioning the lock), but forget
> to get out of these pages properly (for example when
> he kills the browser).
>
> Has anybody been confronted to this problem ?
> Is there any mechanism in JSP/Servlet technology to
> capture the end of a user session and do some action
> ?
>
> Thanks in advance for your help,
>
> tony riyanto
> [EMAIL PROTECTED]
>
>
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