Question

我有一张表，其中的主键是所有列的组合键（不要问我为什么:(。我为它创建了一个实体，如下所示。当我尝试使用Spring数据JPA来获取数据时，它什么也不会返回。但是从日志中，我可以看到hibernate运行了查询并且也获取了数据。请告知我我在做什么错。

@Entity
@Getter
@Setter
@NoArgsConstructor
@Table(name = "PORTAL_CSV_HEADERS")
public class PortalCsvHeaders implements Serializable {

  @EmbeddedId
  @AttributeOverrides({
    @AttributeOverride(
        name = "orderId",
        column = @Column(name = "ORDER_ID", nullable = false, precision = 9, scale = 0)),
    @AttributeOverride(
        name = "csvHeaderName",
        column = @Column(name = "CSV_HEADER_NAME", length = 100)),
    @AttributeOverride(
        name = "recipientMapId",
        column = @Column(name = "RECIPIENT_MAP_ID", precision = 22, scale = 0)),
    @AttributeOverride(
        name = "recipientDlfVal",
        column = @Column(name = "RECIPIENT_DLF_VAL", length = 100)),
    @AttributeOverride(
        name = "recipientDlfName",
        column = @Column(name = "RECIPIENT_DLF_NAME", length = 200))
  })
  private PortalCsvHeadersId id;

  @JsonIgnore
  @ManyToOne
  @JoinColumn(name = "ORDER_ID", insertable = false, updatable = false)
  private PortalOrder order;

这是PortalCsvHeadersId

@Data
@Embeddable
@NoArgsConstructor
public class PortalCsvHeadersId implements Serializable {

  @Column(name = "ORDER_ID", nullable = false, precision = 9, scale = 0)
  private Long orderId;

  @Column(name = "CSV_HEADER_NAME", length = 100)
  private String csvHeaderName;

  @Column(name = "RECIPIENT_MAP_ID", precision = 22, scale = 0)
  private Long recipientMapId;

  @Column(name = "RECIPIENT_DLF_VAL", length = 100)
  private String recipientDlfVal;

  @Column(name = "RECIPIENT_DLF_NAME", length = 200)
  private String recipientDlfName;
}

这是PortalOrder中的关联

 @OneToMany(cascade = CascadeType.ALL, mappedBy = "order", orphanRemoval = true)
  private Set<PortalCsvHeaders> portalCsvHeaders = new HashSet<PortalCsvHeaders>(0);

休眠：当实体只有EmbeddedId时，无法获取数据

0 个答案: