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我有一个实体用户:的PropertyAccessException:错误接入领域
@Entity
public class User implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id", unique = true, nullable = false)
private Long id;
public Long getId() {
return id;
}
...}
而且我试图从任务中删除用户与数据库:
@Modifying
@Query("DELETE FROM Collaborator c WHERE c.user = :userId AND c.task = :taskId")
void deleteUserFromTask(@Param("userId") Long userId, @Param("taskId") Long taskId);
,这是用户和协作者之间的关系(我从中删除的表格): 用户
@JsonIgnore
@OneToMany(mappedBy="user", fetch = FetchType.EAGER)
private Set<Collaborator> collaborators = new HashSet<>();
在合作者
@ManyToOne(cascade = {CascadeType.MERGE,
CascadeType.DETACH,
CascadeType.REFRESH },
fetch = FetchType.EAGER)
@JoinColumn(name = "UserID", nullable = true)
private User user;
,但我得到这个错误:
Caused by: org.hibernate.property.access.spi.PropertyAccessException: Error accessing field [private java.lang.Long gestionprojet.java.entities.beans.User.id] by reflection for persistent property [gestionprojet.java.entities.beans.User#id] : 1
Hibernate的版本:5.2.6.FINAL
要么更改为c.user.id =:用户id或通过在用户和使用c.user =:用户 –
把它作为答案,我会接受它,谢谢 –