Merge remote-tracking branch 'origin/develop' into develop

src/main/java/com/ai/da/service/impl/CollectionElementServiceImpl.java

@@ -88,6 +88,9 @@ public class CollectionElementServiceImpl extends ServiceImpl<CollectionElementM
 
         String level2Type = null;
         if (uploadDTO.getLevel1Type().equals(CollectionLevel1TypeEnum.SKETCH_BOARD.getRealName())){
+            if (StringUtil.isNullOrEmpty(uploadDTO.getGender())) {
+                throw new BusinessException("gender.cannot.be.empty");
+            }
             level2Type = pythonService.getClothCategory(path,uploadDTO.getGender());
         }