Alert before session ends...

[Arun Neelan]

In JSP, Is there a way to display an alert to the user, before session time out.

[v ray]

yeah, ofcourse, just check for the place in your jsp code where you are calling the "LogoutAction.do" class or something similar.
In that place, you can call a window.alert() saying "Session is about to be set to null".

Another thing you can do is, in your LogoutAction class, check for the request.getSession() value, and you can do:

 
if ((request.getSession() == null) ||
    (request.getSession().getAttribute("userType") == null))
 {
       System.out.print("!!!! SESSION Value IS NULL !");
 }