register.jsp
1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 3 4 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 5 <html> 6 <head> 7 8 <title></title> 9 10 11 </head> 12 13 <body> 14 15 <form action="display.jsp" method="post"><br> 16 账号： 17 <input type="text" name="zh"><br> 18 密码： 19 <input type="password" name="mm"><br> 20 验证码： 21 <input type="text" name="yz"> 22 <img id="yzm" src="image/a.jpg"/>换一张<br> 23 <input type="submit" value="登录" name="dl"> 24 25 </form> 26 </body> 27 </html>
display.jsp
1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 <html> 3 4 <body> 5 <% 6 //获取登录的用户名 7 String name= request.getParameter("zh"); 8 //获取登陆密码 9 String pwd= request.getParameter("mm"); 10 //判断 11 if(name.equals("zs")&& pwd.equals("123")) 12 //转发到OK界面 13 request.getRequestDispatcher("ok.jsp").forward(request,response); 14 else 15 //转发到no界面 16 request.getRequestDispatcher("no.jsp").forward(request,response); 17 %> 18 </body> 19 </html>
ok.jsp
1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 <% 3 request.setCharacterEncoding("utf-8"); 4 String name = request.getParameter("zh"); 5 String pwd = request.getParameter("mm"); 6 7 %> 8 9 <% request.setCharacterEncoding("utf-8");%> 10 <h1>登陆成功</h1>
no.jsp
1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 3 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 4 <html> 5 <head> 6 7 <title>My JSP 'dologin.jsp' starting page</title> 8 9 <meta http-equiv="pragma" content="no-cache"> 10 <meta http-equiv="cache-control" content="no-cache"> 11 <meta http-equiv="expires" content="0"> 12 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> 13 <meta http-equiv="description" content="This is my page"> 14 <!-- 15 <link rel="stylesheet" type="text/css" href="styles.css"> 16 --> 17 18 </head> 19 20 <body> 21 <% request.setCharacterEncoding("utf-8");%> 22 <h1 style="color:red">登陆失败</h1>
