如何在JPA/Hibernate中基于两个外键生成id？

@Embeddable
public class MyCompositeKey implements Serializable {
    @Column(name = "foreign_key1")
    private Long foreignKey1;

    @Column(name = "foreign_key2")
    private Long foreignKey2;

    // 构造函数、getter和setter方法
}

@Entity
public class MyEntity {
    @EmbeddedId
    private MyCompositeKey id;

    @ManyToOne
    @JoinColumn(name = "foreign_key1", insertable = false, updatable = false)
    private ForeignKey1Entity foreignKey1Entity;

    @ManyToOne
    @JoinColumn(name = "foreign_key2", insertable = false, updatable = false)
    private ForeignKey2Entity foreignKey2Entity;

    // 其他属性和关联关系的定义
}