相关疑难解决方法(0)

我尝试使用findById方法按 id 获取行，但它没有成功，
无法在 DB 中找到行。当我findAll之前打电话时findById工作正常。我使用 PostgreSQL。

public void updateOffer(OrderOfferDTO orderOfferDTO) {

  //        List<OrderOfferEntity> all = orderOfferRepository.findAll();
        OrderOfferEntity orderOfferEntity = orderOfferRepository.findById(orderOfferDTO.getId()).orElse(null);

        assert(orderOfferEntity != null);

        if (!isCanOfferUpdate(orderOfferEntity)) return;

        orderOfferEntity.setNumberOffer(orderOfferEntity.getNumberOffer() + 1);
        orderOfferEntity.setOfferDelivery(orderOfferDTO.getOfferDelivery());
        orderOfferEntity.setOfferPickup(orderOfferDTO.getOfferPickup());

        orderOfferRepository.save(orderOfferEntity);
    }

存储库

@Repository
public interface OrderOfferRepository extends JpaRepository<OrderOfferEntity, Long> {
    OrderOfferEntity findByUserEntityAndOrderEntity(UserEntity userEntity, OrderEntity orderEntity);

    List<OrderOfferEntity> findByUserEntityNotAndOrderEntity(UserEntity supplierEntity, OrderEntity orderEntity);
    List<OrderOfferEntity> findByOrderEntity(OrderEntity orderEntity);
    List<OrderOfferEntity> findByUserEntity(UserEntity userEntity);
}

实体

@Entity
@Table(name = "AUCTION_SUPPLIER")
@Data
public class OrderOfferEntity {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY) …