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@Entity
@Inheritance(strategy = InheritanceType.JOINED)
@Table(name = "tbp_user")
public class User extends EnterpriseObject {
@Entity
@Table(name = "tbp_student")
public class Student extends User {
,请问怎么才能在hibernate中将父类转换为子类
顶!!顶!!顶!!求火力支援