<dependency>

<groupId>org.mybatis.spring.boot</groupId>

<artifactId>mybatis-spring-boot-starter</artifactId>

<version>1.3.1</version>

</dependency>

//指定这是一个操作数据库的mapper

@Mapper

public interface DepartmentMapper {

    @Select("select * from department where id=#{id}")

    public Department getDeptById(Integer id);

    @Delete("delete from department where id=#{id}")

    public int deleteDeptById(Integer id);

    @Options(useGeneratedKeys = true,keyProperty = "id")

    @Insert("insert into department(departmentName) values(#{departmentName})")

    public int insertDept(Department department);

    @Update("update department set departmentName=#{departmentName} where id=#{id}")

    public int updateDept(Department department);

}

@org.springframework.context.annotation.Configuration

public class MyBatisConfig {

​

    @Bean

    public ConfigurationCustomizer configurationCustomizer(){

        return new ConfigurationCustomizer(){

​

            @Override

            public void customize(Configuration configuration) {

                configuration.setMapUnderscoreToCamelCase(true);

            }

        };

    }

}