官网

MyBatis中文网

SpringBoot依赖

<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.1.1</version>
</dependency>

配置

mybatis:
  #xml配置文件路径
  mapper-locations: classpath:resources.mapper
  #开启驼峰命名
  configuration:
    map-underscore-to-camel-case: true
  #xml映射文件中指定的实体类别名路径
  type-aliases-package: com.aa.dsf

xml模板

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
        
<mapper namespace="对应的实体类路径 com.###.###.###.class" resultType="对应的实体类路径，配置文件指定包路径可只写类名">
    <select id="GetUserByID" parameterType="int" resultType="com.test.springtest.dao.MUser">
        select * from `student` where id = #{id}
    </select>

    <insert
            id="saveUser" parameterType="com.test.springtest.User"
            useGeneratedKeys="true">
        insert into student(NAME,AGE) values (#{name},#{age})
    </insert>
</mapper>