invalidate session when refreshed or backward pressed
Joined: Jan 30, 2006
How to make session invalid whenever refresh/backward button on jsp/servlets is pressed? [ April 15, 2006: Message edited by: Bear Bibeault ]
Joined: Aug 15, 2004
Originally posted by pramodh somashekara: How to make session invalid whenever refresh/backward button on jsp/servlets is pressed?
I can not think of any way. How could we recognize on server whether its a refresh/back or a normal request?
What are you trying to do? May be there is other way around.
Joined: Sep 08, 2003
We can use setHeader attributes where we can specify the no cache and expire time. With this two we can play around and get what you have asked. In this way we can restrict the user from go back to previous page or when refreshing we can get as a fresh request.
Hope this helps you if not do post the exact scenario.
If each page should only be visited once, then you can keep a "flag" as a session variable. i.e. when the page is opened, check if the session variable exists. If so, throw an error and invalidate session as it has already been visited. If it does not exist, create it and then continue on.
Of course, if his browser updates the page out of cache, you can't stop the back or refresh (except by playing with the cache and expires pragmas as listed earlier so that the browser has to request the page again). [ April 18, 2006: Message edited by: Martin Simons ]