完善代码

srm-module-code/src/main/java/org/jeecg/modules/baseCode/controller/BaseProductClassController.java

@@ -123,6 +123,10 @@ public class BaseProductClassController extends JeecgController<BaseProductClass
             return Result.error("产品分类编码重复，请修改！");
         }
 
+        if(StringUtils.isBlank(baseProductClass.getParentId())){
+            baseProductClass.setParentId("");
+        }
+
         baseProductClassService.updateById(baseProductClass);
         return Result.OK("编辑成功!");
     }