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1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2 <html> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5 <title>Insert title here</title> 6 </head> 7 <body> 8 主页面 9 <% 10 //检查session信息，得到session 11 Object ob=session.getAttribute("username"); 12 if(ob!=null) 13 { 14 out.print("欢迎登录"+ob.toString()); 15 } 16 else 17 { 18 //5秒后跳转到session2的页面 19 response.setHeader("refresh", "3;URL=session2.jsp"); 20 out.print("会话超时，重新登陆"); 21 } 22 %> 23 <br> 24 <a href=session3.jsp>退出登录</a> 25 </body> 26 </html>
1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2 pageEncoding="UTF-8"%> 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7 <title>Insert title here</title> 8 </head> 9 <body> 10 <% 11 //登录验证信息 12 String un=request.getParameter("username"); 13 String pw=request.getParameter("password");
//如果登录正确，则跳转到主页面：session1 14 if(un!=null&&pw!=null) 15 { 16 if(un.equals("lhy")&&pw.equals("12345")) 17 { 18 session.setAttribute("username",un); 19 response.sendRedirect("session1.jsp"); 20 } 21 else 22 { 23 out.print("输出有误"); 24 } 25 }
//如果失败则显示登陆错误 26 else 27 { 28 out.print("登陆错误"); 29 } 30 //如果登录正确，跳转到主页面：session1 31 32 //如果失败，显示登录错误 33 %> 34 </body> 35 </html>
1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2 pageEncoding="UTF-8"%> 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7 <title>Insert title here</title> 8 </head> 9 <body> 10 <% 11 //登录页面
//注销
12 session.invalidate(); 13 %> 14 <form action="session2.jsp" method="post"> 15 用户名<input type="text" name="username"> 16 <br> 17 密码<input type="password" name="password"> 18 <br> 19 <input type="submit" name="登录"> 20 </form> 21 </body> 22 </html>
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原文地址：http://www.cnblogs.com/yg6405816/p/5625775.html
