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让我们说一个类/实体名为学生,其包含一个ID,父亲的职业和母亲的职业和实体类都是这样在Hibernate中的另一个实体使用相同的实体两次
Student类
@Entity
@Table(name = "student")
public class Student {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(nullable = false, unique = true, updatable = false)
private int id;
@OneToOne
@JoinColumn(name = "occupationId")
Occupation fathersOccupation;
@OneToOne
@JoinColumn(name = "occupationId")
Occupation mothersOccupation;
}
和职业类
@Entity
@Table(name = "occupation")
public class Occupation {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "occupationId")
int occupationId;
@Column
String title;
}
当我试图两个父亲的职业和母亲的职业@OneToOne
映射是引发异常,Repeated column in mapping for entity
。我尝试加入@Column(name="<columnName>")
,但不允许。我真的希望这两个字段fathersOccupation
和mothersOccupation
与oneToOne
映射在学生表中。任何人都可以帮我解决这个问题吗?任何帮助将不胜感激。请询问你是否需要更多细节。