update

mec-im/src/main/java/com/ym/service/Impl/RoomServiceImpl.java

@@ -1409,7 +1409,9 @@ public class RoomServiceImpl implements RoomService {
         DisplayEnum displayEnum = DisplayEnum.values()[type];
 
         RoomMember roomMember = roomMemberDao.findByRidAndUid(roomId, userId);
-
+        if (roomMember == null) {
+            return false;
+        }
         String roomServiceProviter = getRoomServiceProvider(roomId);
         if (displayEnum.equals(DisplayEnum.None)) {
             roomDao.updateDisplayByRid(roomId, "");