How do I get the remaining session time? [closed]

Question

I have a dynamic web project in Java using Hibernate, servlets and JSP. I want to get the remaining session time for a client so that I can warn them of the upcoming session expiration.

For example, the user would login to the application with one minute of session time. When the remaining session time is ten seconds, I want to warn the user using AJAX and JQuery. How would I do this?

Answer 1

You can make use of HTTPSession.

• getLastAccessedTime() : returns the time session was last accessed
• getMaxInactiveInterval() : returns the timeout period.

Make use of current time and apply logic.

Answer 2

Well you cannot actually get session time with an AJAX request as the request it self will also reset the session timeout time. What you can do is get it when you are rendering the page in a js function and start a counter with setTimeout when and show your message pop when less then 30 seconds left.