java查找mysql返回数据库值，控制台输出不是值而是数字

package dao;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import entity.User;
import util.DBUtil;

public class LoginDao {

public User ulogin(String uname,String pwd) {
    Connection connection = null;
    PreparedStatement pstmt = null;
    ResultSet rs = null;
    try {
        connection = DBUtil.getConnection();
        String sql = "select * from shop_admin where username = ? and password = ?";
        pstmt = connection.prepareStatement(sql);
        
        pstmt.setString(1, uname);
        pstmt.setString(2, pwd);
        rs = pstmt.executeQuery();
        User user = new User();
        if(rs.next()) {
            int id = rs.getInt(1);
            String username = rs.getString(2);
            String password = rs.getString(3);
            String email = rs.getString(4);
            user.setId(id);
            user.setUsername(username);
            user.setPassword(password);
            user.setEmail(email);
            return user;
        }
        
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    } catch (SQLException e) {
        e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    }
    finally {
        DBUtil.closeAll(rs, pstmt, connection);
    }
    return null;
}

public static void main(String[] args) {
    User user1 = new User();
    LoginDao ldao = new LoginDao();        
    user1 = ldao.ulogin("hhb", "123");
    System.out.println(user1);
}

}

user类：
package entity;

public class User {
private Integer id;
private String username;
private String password;
private String email;
public void setId(Integer id) {
this.id = id;
}
public void setUsername(String username) {
this.username = username;
}
public void setPassword(String password) {
this.password = password;
}
public void setEmail(String email) {
this.email = email;
}
public Integer getId() {
return id;
}
public String getUsername() {
return username;
}
public String getPassword() {
return password;
}
public String getEmail() {
return email;
}
}

你这不是直接输出一个对象么