Mybatis实现SQL映射的两种方法(xml文件形式和注解形式)

CREATE TABLE `role` (
    `id` BIGINT(20) NOT NULL,
    `role_name` VARCHAR(20) DEFAULT NULL,
    `note` VARCHAR(20) DEFAULT NULL,
    PRIMARY KEY (`id`)
)

package com.ljt.mybatis;
public class Role {
    private Long id;
    private String roleName;
    private String note;
}

package com.ljt.mybatis.mapper;
import com.ljt.mybatis.bean.Role;
public interface RoleMapper {
    public Role getRole(Long id);
}

<mapper resource="com/ljt/mybatis/mapper/RoleMapper.xml" />

<?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.mybatis.mapper.RoleMapper">
    <select id="getRole" parameterType="long" resultType="role">
        SELECT id,role_name as roleName,note FROM role WHERE id =#{id}
    </select>
</mapper>

package com.ljt.mybatis.mapper;
import com.ljt.mybatis.bean.Role;
import org.apache.ibatis.annotations.Select;
public interface RoleMapper {
    @Select("select id,role_name as roleName,note from t_role where id=#{id}")
    public Role getRole(Long id);
}

SELECT ..........
From dbo.PDA_TB_Produce a With(Nolock)
  Join dbo.DctOperationList b With(Nolock)
   On a.Operation_Code=b.Operation_Code
  Join dbo.DctOneStatusList c With(Nolock)
   On a.One_Status_Code=c.One_Status_Code
  Left join dbo.DctTwoStatusList d With(Nolock)
   On c.One_Status_Code=d.One_Status_Code and a.Two_Status_Code=d.Two_Status_Code
  left Join dbo.DctMachineList e With(Nolock)
   On a.Operation_Code=e.Operation_Code and a.Machine_Code=e.Machine_Code
  left Join dbo.DctOperationList f With(Nolock)
   On a.Next_Operation_Code=f.Operation_Code
  Join dbo.DctUserList g With(Nolock)
   On a.User_ID_Operating=g.User_ID
  Join dbo.DctUserList h With(Nolock)
   On a.User_ID=h.User_ID