<%@ page language="java" import="java.util.*,javax.servlet.http.Cookie.*" pageEncoding="utf-8"%> <%@taglib prefix="html" uri="http://struts.apache.org/tags-html" %> <% 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 'login.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"> --> <!-- 这里已经生成了一个sessionId 所以会有一个sessionId--> <%=session.getId() %><br/> </head> <!-- 下面这个cookies中不会有上面刚刚生成的sessionId,所以不会显示出来，只有当jsp跳转后，才会到cookie中取的到 --> <% Cookie cookies[]=request.getCookies(); if(cookies!=null){ for(int i=0;i<cookies.length;i++){ Cookie cookie=cookies[i]; out.println(cookie.getName() + " " +cookie.getValue()); if(cookie.getName().equals("JSESSIONID")){ out.println(cookie.getValue()); } } } %> <body>登录</h1> <form action="/strutsTest1/Test1" method="get"> u:<input type="text" name="userName"/> <html:errors name="dd" property="userName"/> <br/> p:<input type="password" name="passWord"/><br/> <input type="submit"/> </form> </body> </html> //这个可以处理一个浏览器登录两个用户的问题，session中 //这个方法不是很好