code: @SuppressWarnings("unchecked")
      private void loadListRelation(List<?> obj, String path) {
          if(obj.size() <= 0){
              return;
          }
          if(obj.get(0) instanceof String){
              relation.put(path, (List<String>) obj);
              return;
          }
          loadRelation(obj.get(0), path + "[]");
      }
docs: 解析List配置信息
  @param obj
  @param path