SpringMVC 中实体类父子类关系设置

 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:



@Entity

public 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<Video> videoSet;   

}











Video实体中专辑对象为父类对象

@ManyToOne(cascade=CascadeType.ALL)



@JoinColumn(name = "FK_album_ID")



private AlbumSuperClass beanSuperAlbum;