父类:@Entity @Table(name="tbl_AlbumSuper") @Inheritance(strategy=InheritanceType.SINGLE_TABLE) public class AlbumSuperClass {    @Id    @Column(length = 32)    @GeneratedValue(generator = "system-uuid")    @GenericGenerator(strategy = "uuid", name = "system-uuid")    private String strID;        @Column    private String strName;    } 子类:@Entitypublic class VideoAlbum extends AlbumSuperClass{         //写一些子类特有的属性，如：　 @OneToMany(fetch=FetchType.EAGER)    @JoinColumn(name="FK_album_ID")    private Set