service/src/main/resources/mapper/SysUserRoleMapper.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.example.civilizedcity.mapper.SysUserRoleMapper">
    <delete id="deleteNotIn">
        DELETE t
        FROM
            sys_user_role t
        WHERE
            t.user_id = #{userId}
        AND t.id NOT IN
        <foreach item="item" collection="idList" separator="," open="(" close=")" index="">
            #{item}
        </foreach>
    </delete>

    <select id="getByUserAndRole" resultType="com.example.civilizedcity.entity.SysUserRole">
        SELECT
            *
        FROM
            sys_user_role t
        WHERE
            t.user_id = #{userId}
          AND t.role_id = #{roleId}
    </select>
</mapper>