Re: question

[michael]

I'm not sure this i s supported in HTML/JSP - windows are closed on the client machine and the event is not propagated to the server.
You could try to:
1. add an "I'm closing" GET request via javascript on the page's unload event (would probably get blocked by popup blockers).
2. Use the watchdog pattern - make an async GET request with the session's id each second. When the server does not get any such requests for, say 10 seconds, you know the window is closed

Both cases would break if the user keeps the window open but disconnects his/hers machine from the net.
Any other ideas?

Michael Bar-Sinai
Software Engineer


________________________________________
From: Dina Salah [address-removed]
Sent: Tuesday, August 24, 2010 1:33 PM
To: address-removed; address-removed
Subject: [nbj2ee] question

Hello Sir,
I would like to calculate the time from when the user opens a jsp page to when he closes
it.

Do you have any Idea?

Thanks in advance,


--
Best Regards,

Dina Salah El-deen Hassan
Software developer