power-prediction-project-2.0/ruoyi-system/target/classes/mapper/system/SysRoleMenuMapper.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.SysRoleMenuMapper">

	<resultMap type="SysRoleMenu" id="SysRoleMenuResult">
		<result property="roleId"     column="role_id"      />
		<result property="menuId"     column="menu_id"      />
	</resultMap>

	<delete id="deleteRoleMenuByRoleId" parameterType="Long">
		delete from sys_role_menu where role_id=#{roleId}
	</delete>
	
	<select id="selectCountRoleMenuByMenuId" resultType="Integer">
	    select count(1) from sys_role_menu where menu_id=#{menuId}  
	</select>

	<select id="selectSysRoleMenu" parameterType="Long" resultMap="SysRoleMenuResult">
		select
		rm.*,
		m.menu_name as "menuName"
		from
		sys_role_menu rm
		left join sys_menu m on m.menu_id = rm.menu_id
		where rm.role_id = #{roleId}
	</select>

	<delete id="deleteRoleMenu" parameterType="Long">
 		delete from sys_role_menu where role_id in
 		<foreach collection="array" item="roleId" open="(" separator="," close=")">
 			#{roleId}
        </foreach> 
 	</delete>
	
	<insert id="batchRoleMenu" useGeneratedKeys="false">
		insert all
		<foreach item="item" index="index" collection="list">
			into sys_role_menu(role_id, menu_id) values (#{item.roleId},#{item.menuId})
		</foreach>
		SELECT 1 FROM DUAL
	</insert>
	
</mapper>