我已經過了2天的測試來解決這個問題,但沒有任何工作。 我有這些實體隱含在雙向關係中。如何解決Hibernate「ERROR o.h.e.jdbc.spi.SqlExceptionHelper - 重複項」異常
@Entity
@Table(name = "T_user")
public class T_user implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id_user;
@OneToOne(targetEntity = T_infosProfile.class, mappedBy = "user", fetch = FetchType.LAZY, orphanRemoval = true)
private T_infosProfile infosProfile;
public void setInfosProfile(T_infosProfile infosProfile) {
this.infosProfile = infosProfile;
}
}
而且
@Entity
@Table(name = "T_infosProfile")
public class T_infosProfile {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id_infos;
@OneToOne(targetEntity = T_user.class, fetch = FetchType.LAZY)
@JoinColumn(name = "id_user", unique = true, nullable = false)
private T_user user;
@Column(name = "pourcentage_completion", length = 3, updatable = true, unique = false)
private Integer pourcentageCompletion;
@Column(name = "infos_identite", nullable = false, updatable = true, length = 1, columnDefinition = "TINYINT(1)")
private Boolean infosIdentiteCompleted;
@Column(name = "infos_coordonnees", nullable = false, updatable = true, length = 1, columnDefinition = "TINYINT(1)")
private Boolean infosCoordonneesCompleted;
@Column(name = "infos_bancaires", nullable = false, updatable = true, length = 1, columnDefinition = "TINYINT(1)")
private Boolean infosBancaireCompleted;
@Column(name = "infos_chicowa", nullable = false, updatable = true, length = 1, columnDefinition = "TINYINT(1)")
private Boolean infosCompleted;
//the setter method
public void setUser(T_user user) {
this.user = user;
this.infosIdentiteCompleted = true;
this.pourcentageCompletion = 0;
this.infosCoordonneesCompleted = this.user.getInfosCoordonnees() == null ? false : true;
this.infosBancaireCompleted = this.user.getInfosBancaire() == null ? false : true;
this.infosCompleted = this.user.getInfosCompleted() == null ? false : true;
if (this.infosCoordonneesCompleted == true) {
this.pourcentageCompletion = 50;
}
if (this.infosBancaireCompleted == true && this.pourcentageCompletion == 50) {
this.pourcentageCompletion = 75;
}
if (this.infosChicowaCompleted == true && this.pourcentageCompletion == 75) {
this.pourcentageCompletion = 100;
}
}
}
我也有這樣的方法,該方法被用來更新用戶的infosProfile:
@Service
public class UIServiceImpl implements UIService {
@Autowired
private TinfosProfileRepository infosProfileRepository;
@Override
public T_infosProfile saveInfosPorfile(T_user connectedUser){
T_infosProfile infosProfile = connectedUser.getInfosProfile();
infosProfile.setUser(connectedUser);
connectedUser.setInfosProfile(infosProfile);
try {
return infosProfileRepository.save(infosProfile);
} catch (Exception e) {
throw new ExceptionsDAO(e.getMessage());
}
}
但是,當我把這種方法,它適用於一個情況,但對於另一個我得到這個例外:
10-04-2017 16:27:43 [http-nio-8080-exec-3] WARN o.h.e.jdbc.spi.SqlExceptionHelper - SQL Error: 1062, SQLState: 23000
10-04-2017 16:27:43 [http-nio-8080-exec-3] ERROR o.h.e.jdbc.spi.SqlExceptionHelper - Duplicate entry '8' for key 'UK_bkariaocmnn2rlh477hvoqkyf'
我只想更新當前用戶的infosProfile的屬性。 當它只有一個infosProfile的屬性被更新,但是當我同時更新2個屬性並嘗試saveInfosProfile()時,它可以正常工作,引發異常。
請任何幫助。
我知道,但你可以看到我剛纔保存現有的實體,我不創建一個新的實例,所以我不知道爲什麼這個異常。 – akuma8
你是什麼意思:「這就是當你在創建它的時候沒有給你的約束命名的情況。」 – akuma8
@ akuma8,你會得到一個系統生成的不可讀約束名稱。 – Rahul