session1
<%@page import="java.text.SimpleDateFormat"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head> <body>
<h1>session内置对象</h1>
<hr>
<%
SimpleDateFormat sdf=new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");
Date d=new Date(session.getCreationTime());
session.setAttribute("username", "frank");
%>
session创建时间:<%=sdf.format(d) %><br>
sessionID:<%=session.getId() %><br>
GET用户名: <%=session.getAttribute("username") %><br>
<a href="sessionpage2.jsp"target="_blank">跳转</a>
</body>
</html>
sessionpage2
<%@page import="java.text.SimpleDateFormat"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head> <body>
<h1>session内置对象</h1>
<hr>
<%
//SimpleDateFormat sdf=new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");
//Date d=new Date(session.getCreationTime());
//session.setAttribute("username", "frank");
%> sessionID:<%=session.getId() %><br>
获取用户名: <%=session.getAttribute("username") %><br>
<a href="sessionpage2.jsp"target="_blank">跳转</a>
</body>
</html>
运行截图
1.
2.
设置了对话最长生命周期后
session.setMaxInactiveInterval(5);
截图
1.
2.5s后点击跳转