我知道已经问过这个问题,但他们没有帮助我。
我有以下测试:

public class PlantCatalogTests {
    @Autowired
    PlantInventoryEntryRepository plantRepo;

    @Test
    public void queryPlantCatalog() {
        assertThat(plantRepo.count(), is(14l));
    }


这是PlantInventoryEntryRepository

@Repository
public interface PlantInventoryEntryRepository  extends JpaRepository<PlantInventoryEntry, Long> {}


如您所见,该存储库基于PlantInventoryEntry类

@Entity
@Data
public class PlantInventoryEntry {

      @Id
      @GeneratedValue
      Long id;

      @OneToOne
      PurchaseOrder plant_id;

      String name;
      String description;

      String price;
}


PurchaseOrder是另一个类,在PlantInventoryEntry类中,我有一个实例作为属性:

@Entity
@Data
public class PurchaseOrder {
      @Id
      @GeneratedValue
      Long id;

      List<PlantReservation> reservations;
      PlantInventoryEntry plant;

      LocalDate issueDate;
      LocalDate paymentSchedule;
      @Column(precision=8,scale=2)
      BigDecimal total;

      @Enumerated(EnumType.STRING)
      POStatus status;
      LocalDate startDate;
      LocalDate endDate;
    }


我的主要问题是,当我运行测试时,我会遇到以下错误:

org.hibernate.MappingException: Could not determine type for: com.example.models.PlantInventoryEntry, at table: purchase_order, for columns: [org.hibernate.mapping.Column(plant)


我该如何解决错误?

最佳答案

您需要通过在PurchaseOrder中的PlantInventoryEntry上使用@ManyToOne或@OneToOne注释来确定关系,具体取决于实体之间的实际关系是什么。

编辑:您很可能需要识别PlantReservations列表和PurchaseOrder之间的关系,或者如果它不是由JPA管理的,则需要将其标记为@Transient。

@Entity
@Data
public class PurchaseOrder {
      @Id
      @GeneratedValue
      Long id;

      //  You need to set the mappedBy attribute to the field name
      //  of PurchaseOrder in PlantReservation
      //  Update: omit mappedBy if PurchaseOrder is not mapped in PlantReservation
      @OneToMany(mappedBy="order")
      List<PlantReservation> reservations;

      @ManyToOne
      PlantInventoryEntry plant;

      LocalDate issueDate;
      LocalDate paymentSchedule;
      @Column(precision=8,scale=2)
      BigDecimal total;

      @Enumerated(EnumType.STRING)
      POStatus status;
      LocalDate startDate;
      LocalDate endDate;
    }

10-01 12:07