映射JPA实体：注释oneToMany manyToOne

Question

我的表映射出错。 我不知道该如何处理该错误。 你能帮我吗？ 非常感谢。

实体和关系：一个RefCollectivite ==>许多ColPlanCompteM61

这是我的代码：

async void

错误：

@Entity
@Table(name = "RefCollectivite")
public class RefCollectivite implements Serializable {

@OneToMany(cascade = CascadeType.REMOVE, mappedBy = "refCollectivite")
private List<ColPlanCompteM61> listePlanCompteM61;

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int idPk;

private String libelle;

public RefCollectivite() {
}


@Entity
@Table(name = "ColPlanCompteM61")
public class ColPlanCompteM61 implements Serializable {

@ManyToOne
@JoinColumn(name = "refCollectiviteFk")
private RefCollectivite refCollectivite;

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int idPk;
private int refCollectiviteFk;

Answer 1

您可以尝试以下操作：

@Entity
@Table(name = "RefCollectivite")
public class RefCollectivite implements Serializable {

    @OneToMany(cascade = CascadeType.REMOVE)
    @JoinColumn(name = "refCollectiviteFk")
    private List<ColPlanCompteM61> listePlanCompteM61;



@Entity
@Table(name = "ColPlanCompteM61")
public class ColPlanCompteM61 {

    @JoinColumn(name = "refCollectiviteFk", referencedColumnName = "refCollectiviteFk", insertable=false, updatable=false)
    private RefCollectivite refCollectivite;

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private int idPk;
    private int refCollectiviteFk;