cmc-oa/oa-back/ruoyi-system/src/main/resources/mapper/system/SysUserPostMapper.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.ruoyi.system.mapper.SysUserPostMapper">

	<resultMap type="SysUserPost" id="SysUserPostResult">
		<result property="userId"     column="user_id"      />
		<result property="postId"     column="post_id"      />
	</resultMap>

	<resultMap type="SysUser" id="SysUserResult">
		<id     property="userId"       column="user_id"      />
		<result property="nickName"     column="nick_name"    />
	</resultMap>

	<select id="selectDriverList" resultMap="SysUserResult">
		select u.user_id, u.nick_name
		from sys_user u
				 left join sys_user_post up on u.user_id = up.user_id
		where up.post_id = 27
	</select>

	<select id="selectDeptLeaderByUserId" parameterType="String" resultMap="SysUserResult">
		select r.user_id, r.nick_name, up.post_id from
		(select u1.user_id, u1.nick_name, u.dept_id from
		sys_user as u, sys_user as u1 where u.user_id = #{param} and u1.dept_id = u.dept_id) as r
		left join sys_user_post as up
		on r.user_id = up.user_id
		where up.post_id = 12
	</select>

	<delete id="deleteUserPostByUserId" parameterType="Long">
		delete from sys_user_post where user_id=#{userId}
	</delete>
	
	<select id="countUserPostById" resultType="Integer">
	    select count(1) from sys_user_post where post_id=#{postId}  
	</select>
	
	<delete id="deleteUserPost" parameterType="Long">
 		delete from sys_user_post where user_id in
 		<foreach collection="array" item="userId" open="(" separator="," close=")">
 			#{userId}
        </foreach> 
 	</delete>
	
	<insert id="batchUserPost">
		insert into sys_user_post(user_id, post_id) values
		<foreach item="item" index="index" collection="list" separator=",">
			(#{item.userId},#{item.postId})
		</foreach>
	</insert>
	
</mapper>