Detect http session created or destroyed

Implement HttpSessionListener and add the listener in web.xml. The methods will be triggered when a session is created or destroyed.

 

public class MyHttpSessionListener implements HttpSessionListener { 
    public void sessionCreated(HttpSessionEvent se) { 
        System.out.println("created"); 
    } 

    public void sessionDestroyed(HttpSessionEvent se) { 
        System.out.println("destroyed"); 
    }
…