package com.backendsys.modules.system.dao; import com.backendsys.modules.system.entity.SysUserRoleRelation; import com.baomidou.mybatisplus.core.mapper.BaseMapper; import org.apache.ibatis.annotations.Mapper; import java.util.List; @Mapper public interface SysUserRoleRelationDao extends BaseMapper { List selectUserRoleIds(Long user_id); int insertBatch(Long user_id, List role_ids); }