我刚开始休眠。该项目由Maven和Hibernate完成，但是我的关系存在一些我不了解的问题。
在我的模型中，我创建了一个Person类，秘书和Doctor继承了这个Person类，一个Account的User类 我的问题是在增加拥有帐户的医生或秘书的水平
Person类
@Entity
@Table(name = "personne")
@Inheritance(strategy = InheritanceType.JOINED)
public abstract class Personne implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@Column(length = 50)
private String nom;
@Column(length = 100)
private String prenom;
@Column(length = 13)
private String tel;
Doctor类继承自Person类
@Entity
@Table(name = "medecin")
@PrimaryKeyJoinColumn(name = "id")
public class Medecin extends Personne implements Serializable {
private static final long serialVersionUID = 1L;
@OneToMany(mappedBy = "medecin")
private List<Rendezvous> listeRv;
@OneToOne(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@JoinColumn(name = "user_id", referencedColumnName = "id", unique = false, nullable = true)
private User user;
秘书类也继承自Person类
@Entity
@Table(name = "secretaire")
@PrimaryKeyJoinColumn(name = "id")
public class Secretaire extends Personne implements Serializable {
private static final long serialVersionUID = 1L;
@OneToOne(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@JoinColumn(name = "user_id", referencedColumnName = "id", unique = false, nullable = true)
private User user;
@OneToMany(mappedBy = "secretaire")
private List<Rendezvous> listeRv;
用于管理身份验证的用户类，具有用户的医生或秘书将可以连接，否则将为空
@Entity
@Table(name = "user" )
public class User implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@Column(length = 150)
private String email;
@Column(length = 150)
private String password;
@OneToOne(mappedBy = "user", cascade = CascadeType.ALL,
fetch = FetchType.LAZY, optional = false)
private Medecin medecin;
@OneToOne(mappedBy = "user", cascade = CascadeType.ALL,
fetch = FetchType.LAZY, optional = false)
private Secretaire secretaire;
@Entity
@Table(name = "rendezvous")
public class Rendezvous implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@Column(length = 150)
private String libelle;
@Column(columnDefinition = "DATE")
private LocalDate date;
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "medecin_id")
private Medecin medecin = new Medecin();
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "secretaire_id")
private Secretaire secretaire = new Secretaire();
User um = new User();
um.setEmail("ngaryfaye95@gmail.com");
um.setPassword("ngaryfaye");
User us = new User();
us.setEmail("aidasamb@gmail.com");
us.setPassword("aidasall");
Medecin m = new Medecin();
m.setPrenom("Ahmadou Ngary");
m.setNom("Faye");
m.setTel("774124577");
m.setUser(um);
Secretaire s = new Secretaire();
s.setNom("Sall");
s.setPrenom("Aida Samb");
s.setTel("775679809");
m.setUser(us);
Rendezvous rv = new Rendezvous();
rv.setLibelle("Radio Cérébrale");
rv.setDate(LocalDate.parse("2020-03-04"));
rv.setSecretaire(s);
rv.setMedecin(m);
int d = iu.add(um);
int e = iu.add(us);
int a = im.add(m);
int b = is.add(s);
int c = ir.addRv(rv);
org.hibernate.PropertyValueException: not-null property references a null or transient value : td.java.entities.User.medecin
at org.hibernate.engine.internal.Nullability.checkNullability(Nullability.java:111)
at org.hibernate.engine.internal.Nullability.checkNullability(Nullability.java:55)
at org.hibernate.action.internal.AbstractEntityInsertAction.nullifyTransientReferencesIfNotAlready(AbstractEntityInsertAction.java:116)
at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:72)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:645)
at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:282)
at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:263)
at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:317)
at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:335)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:292)
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:198)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:128)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:193)
at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:38)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:178)
at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:32)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:75)
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:108)
at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:618)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:611)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:606)
at td.java.dao.IUser_implementation.add(IUser_implementation.java:25)
at td.java.controller.rvMedecinController.initialize(rvMedecinController.java:90)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2655)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:2517)
at td.java.App.loadFXML(App.java:37)
at td.java.App.start(App.java:26)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
org.hibernate.PropertyValueException: not-null property references a null or transient value : td.java.entities.User.medecin
at org.hibernate.engine.internal.Nullability.checkNullability(Nullability.java:111)
at org.hibernate.engine.internal.Nullability.checkNullability(Nullability.java:55)
at org.hibernate.action.internal.AbstractEntityInsertAction.nullifyTransientReferencesIfNotAlready(AbstractEntityInsertAction.java:116)
at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:72)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:645)
at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:282)
at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:263)
at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:317)
at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:335)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:292)
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:198)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:128)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:193)
at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:38)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:178)
at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:32)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:75)
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:108)
at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:618)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:611)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:606)
at td.java.dao.IUser_implementation.add(IUser_implementation.java:25)
at td.java.controller.rvMedecinController.initialize(rvMedecinController.java:91)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2655)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:2517)
at td.java.App.loadFXML(App.java:37)
at td.java.App.start(App.java:26)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
org.hibernate.PropertyValueException: not-null property references a null or transient value : td.java.entities.User.medecin
at org.hibernate.engine.internal.Nullability.checkNullability(Nullability.java:111)
at org.hibernate.engine.internal.Nullability.checkNullability(Nullability.java:55)
at org.hibernate.action.internal.AbstractEntityInsertAction.nullifyTransientReferencesIfNotAlready(AbstractEntityInsertAction.java:116)
at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:72)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:645)
at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:282)
at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:263)
at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:317)
at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:335)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:292)
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:198)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:128)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:193)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:178)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:99)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:75)
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:108)
at org.hibernate.internal.SessionImpl.fireSaveOrUpdate(SessionImpl.java:598)
at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:591)
at org.hibernate.engine.spi.CascadingActions$5.cascade(CascadingActions.java:219)
at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:492)
at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:416)
at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:218)
at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:151)
at org.hibernate.event.internal.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:432)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:269)
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:198)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:128)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:193)
at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:38)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:178)
at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:32)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:75)
at
org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:108)
at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:618)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:611)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:606)
at td.java.dao.IMededin_implementation.add(IMededin_implementation.java:26)
at td.java.controller.rvMedecinController.initialize(rvMedecinController.java:92)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2655)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:2517)
at td.java.App.loadFXML(App.java:37)
at td.java.App.start(App.java:26)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
Hibernate: insert into personne (nom, prenom, tel) values (?, ?, ?)
Hibernate: insert into secretaire (user_id, id) values (?, ?)
Hibernate: insert into rendezvous (date, libelle, medecin_id, secretaire_id) values (?, ?, ?, ?)
java.lang.IllegalStateException: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: td.java.entities.Medecin
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:151)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188)
at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1348)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:435)
at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:3221)
at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2389)
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:447)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:183)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$300(JdbcResourceLocalTransactionCoordinatorImpl.java:40)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:281)
at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:101)
at td.java.dao.IRendezvous_implementation.addRv(IRendezvous_implementation.java:26)
at td.java.controller.rvMedecinController.initialize(rvMedecinController.java:94)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2655)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:2517)
at td.java.App.loadFXML(App.java:37)
at td.java.App.start(App.java:26)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: td.java.entities.Medecin
at org.hibernate.engine.internal.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:347)
at org.hibernate.type.EntityType.getIdentifier(EntityType.java:495)
at org.hibernate.type.ManyToOneType.isDirty(ManyToOneType.java:334)
at org.hibernate.type.ManyToOneType.isDirty(ManyToOneType.java:345)
at org.hibernate.type.TypeHelper.findDirty(TypeHelper.java:316)
at org.hibernate.persister.entity.AbstractEntityPersister.findDirty(AbstractEntityPersister.java:4540)
at org.hibernate.event.internal.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:585)
at org.hibernate.event.internal.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:242)
at org.hibernate.event.internal.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:169)
at org.hibernate.event.internal.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:233)
at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:93)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:108)
at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1344)
... 21 more
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