apollo-portal/src/main/java/com/ctrip/framework/apollo/openapi/util/OpenApiBeanUtils.java/OpenApiBeanUtils/transformToItemDTO
class OpenApiBeanUtils:  public static ItemDTO transformToItemDTO(OpenItemDTO openItemDTO) {
    Preconditions.checkArgument(openItemDTO != null);
    return BeanUtils.transform(ItemDTO.class, openItemDTO);
  }