springboot系列教程（七）——整合mybatis

sql

-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `money` double NOT NULL,
  `name` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=latin1;

-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES ('1', '11', 'a');
INSERT INTO `user` VALUES ('2', '22', 'b');

pom文件

        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.0</version>
        </dependency>

配置文件

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/test
spring.datasource.username=root
spring.datasource.password=123456

model类

package com.example.demo.model;

/**
 * @author :小虎
 * @date :2017/12/22
 */


public class User {

    private int id ;
    private String name ;
    private double money;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public double getMoney() {
        return money;
    }

    public void setMoney(double money) {
        this.money = money;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", money=" + money +
                '}';
    }
}

dao类

package com.example.demo.dao;

import com.example.demo.model.User;
import org.apache.ibatis.annotations.*;

import java.util.List;

/**
 * @author :小虎
 * @date :2017/12/25
 */

@Mapper
public interface UserMapper {
    @Insert("insert into user(name, money) values(#{name}, #{money})")
    int add(@Param("name") String name, @Param("money") double money);

    @Update("update user set name = #{name}, money = #{money} where id = #{id}")
    int update(@Param("name") String name, @Param("money") double money, @Param("id") int  id);

    @Delete("delete from user where id = #{id}")
    int delete(int id);

    @Select("select id, name as name, money as money from user where id = #{id}")
    User findAccount(@Param("id") int id);

    @Select("select id, name as name, money as money from user")
    List<User> findAccountList();
}

service类

package com.example.demo.service;

import com.example.demo.dao.UserMapper;
import com.example.demo.model.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * @author :小虎
 * @date :2017/12/25
 */

@Service
public class UserService {

    @Autowired
    UserMapper userMapper;

    public List<User> findAccountList() {
        return userMapper.findAccountList();
    }
}

web类

package com.example.demo.web;

import com.example.demo.model.User;
import com.example.demo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * @author :小虎
 * @date :2017/12/25
 */

@RestController
public class UserController {

    @Autowired
    UserService userService;

    @RequestMapping("/")
    public List<User> list(){
        return userService.findAccountList();
    }
}

源代码

https://github.com/itmybaby/springboot/tree/master/study7