/、.optimize

mallinkService/src/main/java/com/iformall/service/impl/WxCouponChannelServiceImpl.java

@@ -315,6 +315,9 @@ public class WxCouponChannelServiceImpl implements WxCouponChannelService {
             return null;
         }
         cids.retainAll(mcids);
+        if(cids.isEmpty()){
+            return null;
+        }
         wxCouponChannel.setCouponIds(cids);
 
         List<WxCouponChannelVo> list = wxCouponChannelMapper.newfindCList(wxCouponChannel);