Tomcat 7 : Configure redirect url for session timeout

[Akash Jain]

 I have following configuration in `web.xml` in tomcat 7. I am wondering if
I can add any configurable parameter here, so that if user tries to do any
operation post 30 minutes, I redirect the user to our home page.

    <session-config>
          <session-timeout>30</session-timeout>
          <cookie-config>
                  <domain>mydomain.mycompany.com</domain>
                  <http-only>true</http-only>
                  <secure>false</secure>
          </cookie-config>
          <tracking-mode>COOKIE</tracking-mode>
    </session-config>