JPA派生标识符2

@Entity
@Table(name = "adam_importfile")
@IdClass(BusinessAdviserFileId.class)
public class BusinessAdviserFile {

    @Id
    private String hash;

    @JsonIgnore
    @Id
    @ManyToOne(fetch = FetchType.LAZY)
    private Store store;
}

public class BusinessAdviserFileId implements Serializable {

    private String hash;

    private Long store;
}