如何春季開機初始化庫

@Repository 
public interface RoomRepository extends CrudRepository<Room, Long>{ 
    Room findByNumber(String number); 
}

我上面如何春季開機初始化庫

@Service 
public class ReservationService { 
    private RoomRepository roomRepository; 
    private GuestRepository guestRepository; 
    private ReservationRepository reservationRepository; 

    @Autowired 
    public ReservationService(RoomRepository roomRepository, GuestRepository guestRepository, ReservationRepository reservationRepository) { 
     this.roomRepository = roomRepository; 
     this.guestRepository = guestRepository; 
     this.reservationRepository = reservationRepository; 
    }

我的服務類RoomRepository如上圖所示。爲什麼可以初始化一個接口？謝謝

來源

2017-04-09 Desmond

也許你可以找到答案這裏http://stackoverflow.com/questions/33999879/spring-data-autowire-the-repository-interfaces-directly –

的可能的複製[如何是春數據倉庫實際執行？]（http://stackoverflow.com/questions/38509882/how-are-spring-data-repositories-actually-實現） – dunni

Spring正在爲接口創建一個代理，代理將所有調用委託給一個已經存在的實現。 This post包含一個很好的解釋

來源

2017-04-09 08:05:33

如何春季開機初始化庫

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