基于jsp+servlet的登录用户界面验证
Posted jun俊
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1 login.jsp 2 3 <%@page contentType="text/html" pageEncoding="UTF-8"%> 4 <% 5 String path = request.getContextPath(); 6 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 7 %> 8 9 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 10 <html> 11 <head> 12 <base href="<%=basePath%>"> 13 14 <title>用户登录界面</title> 15 16 <meta http-equiv="pragma" content="no-cache"> 17 <meta http-equiv="cache-control" content="no-cache"> 18 <meta http-equiv="expires" content="0"> 19 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> 20 <meta http-equiv="description" content="This is my page"> 21 <!-- 22 <link rel="stylesheet" type="text/css" href="styles.css"> 23 --> 24 25 </head> 26 27 <body> 28 <form action="loginCheck" method="post"> 29 用户名: <input type="text" name="name"><br><br> 30 密码: <input type="password" name="password"><br><br> 31 <input type="submit" value="确 认"> 32 <input type="reset" value="取 消"> 33 </form> 34 </body> 35 </html> 36 37 38 LoginCheckServlet.java 39 40 package servlets; 41 42 import java.io.IOException; 43 //import java.io.PrintWriter; 44 45 import javax.servlet.ServletException; 46 import javax.servlet.http.HttpServlet; 47 import javax.servlet.http.HttpServletRequest; 48 import javax.servlet.http.HttpServletResponse; 49 50 public class LoginCheckServlet extends HttpServlet { 51 52 53 /** 54 * 55 */ 56 private static final long serialVersionUID = 1L; 57 58 public void doPost(HttpServletRequest request, HttpServletResponse response) 59 throws ServletException, IOException { 60 String Name=request.getParameter("name"); 61 String Password=request.getParameter("password"); 62 String info=""; 63 if(("abc".equals(Name))&&("123".equals(Password))){ 64 info="欢迎你的登录"+Name+"!";} 65 else 66 {info="登陆失败!";} 67 request.setAttribute("outputMessage",info); 68 request.getRequestDispatcher("info.jsp").forward(request,response); 69 } 70 //response.setContentType("text/html"); 71 72 73 } 74 75 info.jsp 76 77 <%@ page pageEncoding="UTF-8"%> 78 <% 79 String path = request.getContextPath(); 80 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 81 %> 82 83 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 84 <html> 85 <head> 86 <base href="<%=basePath%>"> 87 88 <title>显示页面</title> 89 90 <meta http-equiv="pragma" content="no-cache"> 91 <meta http-equiv="cache-control" content="no-cache"> 92 <meta http-equiv="expires" content="0"> 93 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> 94 <meta http-equiv="description" content="This is my page"> 95 <!-- 96 <link rel="stylesheet" type="text/css" href="styles.css"> 97 --> 98 99 </head> 100 101 <body> 102 <%=request.getAttribute("outputMessage") %> 103 </body> 104 </html>
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