checking session in servlet and jsp

Question

In my web application i neet to check session already exist or not.

i want to check this in my servlet and in jsp also.

is there any way to check this.

T

Answer 1

One way is to set a session id in the jsp and then check the same session id in the other jsp or servlet to check if it is alive or not.

HttpSession session = req.getSession();
        session.getId();