mybatis-spring

现成的中文文档

首先，项目依赖

<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>1.1.1</version>
</dependency>

对象和sql的映射关系

@Mapper
public interface CityMapper {

    @Select("SELECT * FROM CITY WHERE state = #{state}")
    City findByState(@Param("state") String state);

}

使用sqlSession调用

@Component
public class CityDao {

    @Autowired
    private SqlSession sqlSession;

    public City selectCityById(long id) {
        return this.sqlSession.selectOne("selectCityById", id);
    }

}