你可以制作一个Embedded class，其中包含两个键，然后像EmbeddedId中一样引用该类Entity。

你将需要@EmbeddedId和@Embeddable注释。

@Entity
public class YourEntity {
    @EmbeddedId
    private MyKey myKey;

    @Column(name = "ColumnA")
    private String columnA;

    /** Your getters and setters **/
}

@Embeddable
public class MyKey implements Serializable {

    @Column(name = "Id", nullable = false)
    private int id;

    @Column(name = "Version", nullable = false)
    private int version;

    /** getters and setters **/
}

完成此任务的另一种方法是使用@IdClass批注，然后将两者都id放在该批注中IdClass。现在你可以@Id在两个属性上使用普通注释

@Entity
@IdClass(MyKey.class)
public class YourEntity {
   @Id
   private int id;
   @Id
   private int version;

}
public class MyKey implements Serializable {
   private int id;
   private int version;
}