缓存数据库会议预定数据，时间1分钟,修改空不存

xueyi-modules/xueyi-system/src/main/java/com/xueyi/system/meeting/controller/DmMeetingOrdersController.java

@@ -136,7 +136,9 @@ public class DmMeetingOrdersController extends BaseController<DmMeetingOrdersQue
                 dmMeetingOrdersService.fixColumns(dto);
                 return dto;
             }).toList();
-            redisService.setCacheList(REDIS_KEY+dateStr+":"+spaceId, res, 60, TimeUnit.SECONDS);
+            if (!res.isEmpty()) {
+                redisService.setCacheList(REDIS_KEY+dateStr+":"+spaceId, res, 60, TimeUnit.SECONDS);
+            }
         }
 
         myResponse.setData(res);