Java 休眠多个表的一对多映射

你好，我是冬眠新手 我试图映射一次访问-->测试和访问-->方向，但出现错误

原因：org.hibernate.AnnotationException:mappedBy reference未知目标实体属性：

一次访问可以有多个方向和测试 我如何实现这一点

---

请帮帮我

注释的

@OneToMany

上的

mappedBy

字段的值引用java实例变量名，并且区分大小写。您将其设置为

Visit

，但在

方向

和

测试

类中，变量名为

Visit

解决方案是将属性

mappedBy

从

Visit

更改为

Visit

（小写V）：

@OneToMany（mappedBy=“visit”，cascade=CascadeType.PERSIST，orphaneremovation=true，fetch=FetchType.LAZY）
私人名单指示；
@OneToMany（mappedBy=“visit”，cascade=CascadeType.PERSIST，orphanRemoving=true，fetch=FetchType.LAZY）
私有列表测试；

您可以共享完整的控制台日志吗？为什么那个方向实体是小写的？我的意思是应该是方向而不是方向

@Entity
@Table(name="Visit")
public class Visit {
    @Id
    @XmlTransient
    @JsonIgnore
    @SequenceGenerator(name = "v_id_seq", sequenceName = "v_id_seq", allocationSize = 1)
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "v_id_seq")
    @Column(name = "id")
    private Long id;

    @OneToMany(mappedBy = "Visit",cascade = CascadeType.PERSIST,orphanRemoval = true,fetch=FetchType.LAZY)
    private List<directions> directions;

    @OneToMany(mappedBy = "Visit",cascade = CascadeType.PERSIST,orphanRemoval = true,fetch=FetchType.LAZY)
    private List<Test> Test;

@Entity
@Table(name="test")
public class Test {
    @Id
    @XmlTransient
    @JsonIgnore
    @SequenceGenerator(name = "t_id_seq", sequenceName = "t_id_seq", allocationSize = 1)
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "t_id_seq")
    @Column(name = "id")
    private Long id;

    @ManyToOne(fetch = FetchType.LAZY)
    @JsonBackReference
    @JoinColumn(name = "vid", updatable = false, insertable = true,referencedColumnName = "id")
    private Visit visit;

@Entity
@Table(name="direction")
public class directions {
    @Id
    @XmlTransient
    @JsonIgnore
    @SequenceGenerator(name = "d_id_seq", sequenceName = "d_id_seq", allocationSize = 1)
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "d_id_seq")
    @Column(name = "id")
    private Long id;
    @ManyToOne(fetch = FetchType.LAZY)
    @JsonBackReference
    @JoinColumn(name = "vid", updatable = false, insertable = true,referencedColumnName = "id")
    private Visit Visit;

@OneToMany(mappedBy = "visit",cascade = CascadeType.PERSIST,orphanRemoval = true,fetch=FetchType.LAZY)
private List<directions> directions;

@OneToMany(mappedBy = "visit",cascade = CascadeType.PERSIST,orphanRemoval = true,fetch=FetchType.LAZY)
private List<Test> Test;