How to avoid multiple login of user in same session....

Question

in this problem user can only use there session at a single PC..single browser .

Answer 1

Session session = request.getSession(false);

if session == null
session.invalidate()
session = request.getSession(true)

try this in your doPost method of the servlet when the user is logging in.

hope this helps

Answer 2

if (!isset($_SESSION['name'])){
header('location: login.php');
}else
{
$_SESSION['name'];
}

Answer 3

use HttpSessionBindingListener