不要使用 spring jpa 从 db 获取信息

Question

I'm trying to get data from Oracle.

I have @OneToMany relation in class "Home"

@OneToMany(cascade = CascadeType.ALL)
@JoinColumn(name = "obj_id", referencedColumnName = "obj_id", insertable = false, updatable = false)
private List<Room> roomCollection;

I have this repository:

    @Repository
    public interface FkvaRepository extends JpaRepository<ROOM, Long> {

    @Query(value = "SELECT * FROM ROOM WHERE OBJ_ID=?1", nativeQuery = true)
    List<ROOM> findAllByObjectId(Long id);
}

I have a controller which get all rooms by home id:

@RequestMapping(value = "/room/{id}",
            method = RequestMethod.GET,
            produces = { MediaType.APPLICATION_JSON_VALUE })
    public List<Room> getRoom(@PathVariable(name = "id") Long id) {

        List<Room> roomCollection = roomRepository.findAllByObjectId(id);
        return roomCollection;
    }

But when I tried

http://localhost:9000/room/466

I have the correct count of room objects in the result, but all of them are duplicate of the first.

How could I fix it?

Answer 1

SELECT * FROM ROOM WHERE OBJ_ID=?1 is the issue here.

Use following

List<ROOM> findAllByRoomId(Long id);

Where Id is room's entity primary id. remove native query code.