id, name, descripion, url, pid, perms, type, icon, order_num select *,(select count(1) from t_sys_permission where pid=a.id) childcount from t_sys_permission a select distinct p.*,(select count(1) from t_sys_permission where pid=p.id) childcount from t_sys_permission_role spr,t_sys_role_user sru,t_sys_permission p where spr.role_id = sru.sys_role_id AND spr.permission_id = p.id AND sru.sys_user_id=#{userId} ORDER BY order_num ASC,order_num ASC select p.* from t_sys_permission p left join t_sys_permission_role pr on p.id=pr.permission_id where pr.role_id=#{roleid}