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public void sessionDestroyed(HttpSessionEvent event) {
HttpSession session = event.getSession();
ServletContext application = session.getServletContext();
// 取得登录的用户名
String username = (String) session.getAttribute("username");
List<String> users=(List) application.getAttribute("users");
users.remove(username);
System.out.println("非法退出,注销此用户:"+username);
}
function onLine(){
createXMLHttpRequest();
var url = "servlet/innerCommManageServlet.do?action=onLine&userName=${employee.userName}";
xmlHttp.open("get",url,true);
xmlHttp.onreadystatechange = onMessage;
xmlHttp.send(null);
}
function onMessage(){
if(xmlHttp.readyState == 4){
if(xmlHttp.status == 200){
}
}
}
window.onload =function(){
setInterval("onLine()",5000);
}