springboot整合mybatis

1，导入mybatis的依赖

      <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.4</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        

2，配置properties，

spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.url=jdbc:mysql://localhost:3306/mybatis?useSSL=false&serverTimezone=UTC&useUnicode=true&characterEncoding=UTF-8
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver


#整合mybatis
mybatis.type-aliases-package=com.king.pojo
mybatis.mapper-locations=classpath:mybatis/mapper/*.xml

3，写实体类

4，编写mapper接口

package com.king.mapper;

import com.king.pojo.User;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

import java.util.List;

//这个注解表示这个是mybatis的mapper类，相当于注册到mybatis了
//@Repository,声明这是spring的组件，交给spring容器托管
@Mapper
@Repository
public interface UserMapper {

    List<User> queryUserList();
/*
    User queryUserById(int id);

    int addUser(User user);

    int updateUser(User user);

    int deleteUser(int id);*/


}

4.编写mapper.xml

注意：springBoot的mapper.xml需写在resources文件夹下，新建一个mapper文件夹，在这里写*mapper.xml

　　resources/mapper/*mapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.king.mapper.UserMapper">

    <select id="queryUserList" resultType="User">
        select * from user
    </select>

</mapper>

最后如何整合SpringBoot+durid+Mybatis，看我之前的就足够 了