我希望获得所有优惠(其中)OfferState等于ACTIVE - 是否可以使用只有方法名称的Spring Data,或者我必须使用<td>
?
@Query
@Repository
public interface OfferRepository extends JpaRepository<Offer, Long> {
Page<Offer> findAllByOfferState_ACTIVE(Pageable pageable);
}
public enum OfferState {
ACTIVE, FINISHED
}
@Entity
@Table(name = "OFFERS")
@Getter
@Setter
@NoArgsConstructor
@AllArgsConstructor
public class Offer {
@Id
@GeneratedValue
private Long id;
[...]
@Enumerated(EnumType.STRING)
private OfferState offerState;
}
@Service
public class OfferServiceImpl implements OfferService {
@Autowired
private OfferRepository offerRepository;
@Override
public Offer saveOffer(Offer offer) {
offer.setOfferState(OfferState.ACTIVE);
return offerRepository.save(offer);
}
@Override
public Page<Offer> getAllByPage(Pageable pageable) {
Page<Offer> allByOfferState_active = offerRepository.findAllByOfferStateACTIVE(pageable);
return allByOfferState_active;
}
}
不正确吗?当我执行GET时,我的服务方法findAllByOfferState_ACTIVE
会抛出异常getAllByPage
。
我尝试使用Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.util.NoSuchElementException] with root cause
而没有它,但仍然是相同的。
答案 0 :(得分:3)
您可以创建默认界面方法:
public interface OfferRepository extends JpaRepository<Offer, Long> {
default List<Offer> findAllWhereOfferStateIsActive() {
return findByOfferState(OfferState.ACTIVE);
}
List<Offer> findByOfferState(OfferState state);
}
答案 1 :(得分:2)
public interface OfferRepository extends PagingAndSortingRepository<Offer, Long> {
Page<Offer> findByOfferState(OfferState state,Pageable pageable);
}