servlet的登陆案例

Users.java

 package com.po;

 public class Users {
     private String username;
     private String password;

     public Users(){};

     public String getUsername() {
         return username;
     }
     public void setUsername(String username) {
         this.username = username;
     }
     public String getPassword() {
         return password;
     }
     public void setPassword(String password) {
         this.password = password;
     }

 }

新建GoLogin.java和LoginServlet.java的servlet类

分别修改他们的doGet和doPost方法

login.jsp:

  <form action="servlet/LoginServlet" method="post">
         <table>
             <tr><td>用户名:</td><td><input type="text" name="username" /></td></tr>
             <tr><td>密码:</td><td><input type="password" name="password" /></td></tr>
             <tr><td></td><td><input type="submit" value="登陆" /></td></tr>
         </table>
     </form>

loginFailed.jsp

  <h1>登陆失败</h1>
 <a href="servlet/GoLogin" >返回登陆界面</a>