[Important] The application container should support servlet 2.3 standard.

==================web.xml==============================

<?xml version = '1.0' encoding = 'ISO-8859-1'?>

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/j2ee/dtds/web-app_2_3.dtd">

<web-app>

<-- Listeners -->

<listener>

<listener-class> com.util.SessionListener </listener-class>

</listener>

<!-- Action Servlet Configuration -->

<servlet>

........

</servlet>

</web-app>

======================SessionListener.java==============================

package com.util;
public class SessionListener implements HttpSessionListener{
public SessionListener() { }
public void sessionCreated(HttpSessionEvent se) {
SystemLog log = new SystemLog(Utility.class);
HttpSession session = se.getSession();
String id=session.getId();
log.debug("======Session ==== "+id);
}
public void sessionDestroyed(HttpSessionEvent se) {
SystemLog log = new SystemLog(Utility.class);
HttpSession session = se.getSession();
String id=session.getId();
log.debug("=======Session Destroyed===== "+id);
}
}