jsp登录会话的简单实现

(编辑：jimmy 日期: 2024/10/8 浏览：3 次 )

jsp登录会话的简单实现

<%@ 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>登录界面</title>
</head>
<body>

<form action="test_session2.jsp" method="post"> 
<table width="300" height="300" border="0" align="center">
  <tr height="80" align="center">
    <td colspan="2"><font size="24">OO登录</font></td></tr>
  <tr height="30">
    <td width="80" align="right">用户名：</td>             
    <td><input type="text" name="name"></td></tr>
  <tr height="30">
    <td width="80" align="right"> 密&nbsp;&nbsp;码：</td>
    <td> <input type="password" name="password"></td></tr>
    <tr><td height="40" align="center" colspan="2">
    <input type="submit" value="登录"></td></tr>
 </table>


</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>登录成功</title>
</head>
<body>
<% 
String name = new String( request.getParameter("name").getBytes("ISO-8859-1"),"UTF-8");
session.setAttribute("name", name);

out.println(name + "成功登陆");
%>
<a href="test_session3.jsp"><br>跳转</a>
</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>会话</title>
</head>
<body>
<%
String str = "";
Object obj = session.getAttribute("name");
if(obj != null){
  str = obj.toString();
  out.println(str + "已经成功登陆");
}else{
  out.println("会话超时，请重新登录。");
}
%>
</body>
</html>

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