开发者学堂课程【Java Web项目实战2：图书商城：用户模块的相关类创建】学习笔记，与课程紧密联系，让用户快速学习知识。

课程地址：https://developer.aliyun.com/learning/course/35

用户模块的相关类创建

1. domain:User

2. dao: UserDao

3. service: UserDao

4. web.servlet:Userservlet

一：User

1．package cn.itcast.bookstore.user.domain;

2．/**

3．*User的领域对象

4．*@author cxf

5．*

6．*/

7．public class User {

8．/*

9．对应数据库表

10．*/

11．private String uid;//主键

12．private String username;//用户名

13．private String password;//密码

14．private String email；//邮箱

15．private String code;//激活码

16．private boolean state;//状态（已激活和未激活）

二：UserDao

1. package cn.itcast.bookstore.user.dao;

2. /**

3. *User持久层

4. *@author cxf

5. *

6. */

7. public class UserDao {

8. private QueryRunner qr = new TxQueryRunner();

9. }

三：UserService

1. package cn.itcast.bookstore.user.service;

2. import cn.itcast.bookstore.user.dao.UserDao;

3. /**

4. *User业务层

5. *@author cxf

6. *

7. */

8. public class UserService {

9. private UserDao userDao = new UserDao();

10. }

四：Userservlet

1. package cn.itcast.bookstore.user.web.servlet;

2. import cn.itcast.bookstore.user.service.Userservice;

3. import cn.itcast.servlet.Baseservlet;

4. /**

5. *User表述层

6. */

7. public class UserServlet extends BaseServlet {

8. private UserService userService = new UserService();

9. }