aspose file tools*
The moose likes Servlets and the fly likes Clearing httpsession on window close, techniques? Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of Spring in Action this week in the Spring forum!
JavaRanch » Java Forums » Java » Servlets
Bookmark "Clearing httpsession on window close, techniques?" Watch "Clearing httpsession on window close, techniques?" New topic
Author

Clearing httpsession on window close, techniques?

Alok Pota
Ranch Hand

Joined: Mar 07, 2001
Posts: 185
Anybody have a bag of tricks to have the session invalidated when closing the browser window.
One of the tricks that I know:
Have a hidden iframe and have it navigate to the url that invalidates the session when window closes.
Sanjeev Kaushik
Ranch Hand

Joined: Aug 01, 2002
Posts: 105
you can use the "onUnload" event of the body tag. Onunload you can try call the server side, which can invalidate the session object.
Hope this helps.
Sanjeev


Sanjeev Kaushik
Alok Pota
Ranch Hand

Joined: Mar 07, 2001
Posts: 185
Yeah, but onUnload also gets called when I get out of the page through valid exit points (say Clicking the Cancel button).
There needs to be an onClose event for the DHTML window object.
Mary Cole
Ranch Hand

Joined: Dec 02, 2000
Posts: 362
Hey,
Can U elaborate on the first technique which U suggested...
Paste the code if necessary
Mary Cole
Ranch Hand

Joined: Dec 02, 2000
Posts: 362
Could anybody pls answer my previous posting pls
Jeroen Wenting
Ranch Hand

Joined: Oct 12, 2000
Posts: 5093
The ONLY way to notify the server that the browser is no longer there or is moved to another site is to put some Javascript in the onunload event for the body tag of the page.
Here you can have the browser then call a servlet on the server which can invalidate the session.
As said, there is a potential problem in that it also gets called when you move to another page on your site, but I think there are ways to circumvent that.
I've never used the function myself.


42
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: Clearing httpsession on window close, techniques?