📄 delogin.jsp
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<%@ page language="java" import="java.util.*,dao.*,entity.*" pageEncoding="ISO-8859-1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title></title>
</head>
<body>
<%request.setCharacterEncoding("GBK");
String userpassword=request.getParameter("password");
String username=request.getParameter("loginName");
UserDao ud=new UserDao();
boolean isexisteduser=ud.findUser(username,userpassword);
if(isexisteduser==true){
User logineduser=new User(username,userpassword);
session.setAttribute("LOGINED_USER",logineduser);
List loginedusers=new ArrayList();
if(application.getAttribute("LOGINED_USER")!=null){
loginedusers=(List)application.getAttribute("LOGINED_USER");
}
loginedusers.add(logineduser);
application.setAttribute("LOGINED_USER",loginedusers);
response.sendRedirect("index.jsp");
}else{response.sendRedirect("login.jsp");}
%>
</body>
</html>
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