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>