<script type="text/javascript">
window.onbeforeunload = function() //author: meizz?
{?
? ? window.location="http://localhost:8080/tt/servlet/tt?action=loginOut";
alert("关闭窗口之前");?
??
}
window.onunload = function() //author: meizz?
{?
alert("关闭窗口");?
??
}
</script>
?
?
String action = request.getParameter("action");
? ?HttpSession session = request.getSession();
if("login".equals(action))
{
? ? if(null == session.getAttribute("flag"))
? ? {
? ? ? ? session.setAttribute("flag", 1); ?
? ? }
? ? System.out.println("login \t:"+ ?session.getAttribute("flag"));
? ??
}
else if("loginOut".equals(action))
{
session.removeAttribute("flag");
System.out.println("loginOut \t:"+ ?session.getAttribute("flag"));
}
}