Clear session sessions when JSP page exits

We use a quit.jsp to handle the user to exit the system operation, QUIT.JSP is responsible for cancellation session, timely release of resources.

Log off session.

Closes the browser window.

The code looks like this:

Tips

When the user exits the system, the session needs to be logged off, otherwise the sessions object will not be purged until after the session expires in the server. Suppose a session is inactive for a maximum of 30 minutes (the default), and if the session object is not purged manually, the system resources occupied by those objects will be freed after a user exits the system after 30 minutes.