SpringBoot - Mybatis

<dependency>
  <groupId>org.mybatis.spring.boot</groupId>
  <artifactId>mybatis-spring-boot-starter</artifactId>
  <version>2.1.2</version>
</dependency>

#整合mybatis,设置别名，识别mapper文件
mybatis:
	# 扫描包
  type-aliases-package: com.test
  # mapper文件扫描
  mapper-locations: classpath:mapper/*.xml

@Mapper
public interface UserTestMapper {

    int userAgeAddOne(@Param("id") String id,@Param("version") int version);

    @Select("select * from test_user")
    List<TestUser> findAll();

    @Select("select * from test_user where id = #{id}")
    TestUser findById(@Param("id") String id);
}

<?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="com.test.mysql.mapper.UserTestMapper">
    <update id="userAgeAddOne" parameterType="String">
         update test_user set age=age+1,version=version+1 where id=#{id} and version=#{version};
    </update>
</mapper>