<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form method="post" action="doLogin.jsp">
<p>用户名：<input type="text" name="userName"/></p>
<p>密码：<input type="password" name="pwd"/></p>
<p><input type="submit" name="Submit"/></p>
</form>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
String name=request.getParameter("userName");
Cookie newCookie=new Cookie("user",name);
newCookie.setMaxAge(10);//有效期20秒
response.addCookie(newCookie);
response.sendRedirect("welcome.jsp");
%>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
Cookie[] cookies=request.getCookies();
String name=null;
if(cookies!=null){
for(int i=0;i<cookies.length;i++){
if(cookies[i].getName().equals("user")){
name=cookies[i].getValue();
}
}
}else{
response.sendRedirect("Login.jsp");
}
if(name==null){
response.sendRedirect("Login.jsp");
}
out.print("您好！"+name+"欢迎您");
%>
</body>
</html>
原文地址：https://www.cnblogs.com/chongsheng456-com/p/8994685.html
时间： 2024-08-26 22:33:32