Warn the user before session timeout

Question

I have a web application implemented in Spring MVC, JSP.
Default session timeout is defined in web.xml is 30 min.

if use

Answer 1

Try this code. Hopefully it will solve your problem. Thanks

var cookieName = 'sessionMsg';
var message = 'Your session is going to be end by 5 min, Please click OK to continue';

function getCookie(name)
{
    var name = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0; i