Configure Session timeout in Servlet - Web.xml

Configure Session Timeout in Servlet - Web.xml 

The session timeout can be configured in two ways - 

1. Specify the session timeout in (web.xml)

You need to use session-config tag in web.xml. Specify the session timeout in minutes in session-config . 

This is how you can do it.

             <web-app ...>
                    <session-config>
                            <session-timeout>20</session-timeout>
                    </session-config>
             </web-app>

This will kill the servlet container on 20 minutes of inactive session . 

2. Timeout with setMaxInactiveInterval()

                HttpSession session = request.getSession();
                session.setMaxInactiveInterval(20*60);

The above setting is only apply on session which call the “setMaxInactiveInterval()” method, and session will be kill by container if client doesn’t make any request after 20 minutes.

Note - Here the interval is in seconds