how to clear the session when leaving a page.

Hi..
I created a login page which contains username and password fields for users to login. After login,when click the back button the username and password values are displayed in the username and password fields.

Is there any way to clear username and password fields when the user leaving the login page.

use this method to invalidate the sessions,

session.invalidate();

kattavijay

Hi..
Thanks for your response.
I need one more thing.
Can u give any sample code for avoiding previous page when we click on the back button of InternetExplorer(any browser).
Can u tell me Where do we place session.invalidate().

try this piece of code :

// Get the existing session.
HttpSession session = request.getSession(false);

// Invalidate the existing session.

// Note :
// We may need to invalidate the existing session to ensure that all previous session data(s) for the user is removed from the context.

// Example : When user login to the application after Session Times out,we may not
need his previous session data and we need to create a new session for the user.

if(session!=null) {
session.invalidate();
}
// Create a new session for the user.
session = request.getSession(true);