How to keep Session Alive beyond its MaxInactive interval

Question

I am Switching between two different Dynamic web application through Links.But if i am working on one application for long time then others application session expires and i got redirected to login page, Is there any method to keep session alive beyond maxInactive time interval while i am working on other application page

Answer 1

There are two options-

1. If both applications requires single sign on feature (like we login to gmail, then all google services are accessible), you can use tomcat clustering and share session accross cluster. Both your apps will be part of the cluster.
2. A simple work aroud would be to set a heartbeat ajax request in each application. Use JavaScript's timeout function and send ajax request to servlet after a fix interval.

Answer 2

I can think of one option here that is to manage your own Session Pool. You can save the session object in ArrayList<HttpSession> whenever you create new session. And send that session id to your another application. When you return to previous app, you send back session id. And if you find session dead then find that session in your Session Pool by session id and create new session. In new session set attributes of the previous session object.

Hope this might be useful.

Answer 3

You can anyway update MaxInactiveInterval of server at runtime, there is this method setMaxInactiveInterval available for HTTPsession class object.

Hope this helps. :)