我在数据库中插入了这些类（带有hibernate的postgresql）：
@Entity
@Table(name = "CITA", schema = "COLINASCO", uniqueConstraints = {@UniqueConstraint(columnNames = "CITA_ID")})
public class Cita implements Serializable{
private long id;
private Date fecha;
private Time hora;
private Paciente paciente;
private Empleado empleado;
private Set<Tratamiento> listaTratamientos;
public Cita() {
fecha = null;
hora = null;
paciente = null;
empleado = null;
listaTratamientos = null;
}
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "CITA_GENERATOR")
@SequenceGenerator(name = "CITA_GENERATOR", sequenceName = "CITA_SEQ")
@Column(name = "CITA_ID", nullable = false, unique = true)
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
@Column(name = "FECHA", nullable = false)
public Date getFecha() {
return fecha;
}
public void setFecha(Date fecha) {
this.fecha = fecha;
}
@Column(name = "HORA", nullable = false)
public Time getHora() {
return hora;
}
public void setHora(Time hora) {
this.hora = hora;
}
@OneToOne(cascade = CascadeType.ALL)
@JoinColumn(name = "PACIENTE_ID")
public Paciente getPaciente() {
return paciente;
}
public void setPaciente(Paciente paciente) {
this.paciente = paciente;
}
@OneToOne(cascade = CascadeType.ALL)
@JoinColumn(name = "EMPLEADO_ID")
public Empleado getEmpleado() {
return empleado;
}
public void setEmpleado(Empleado empleado) {
this.empleado = empleado;
}
@OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
@JoinTable(name = "CITA_TRATAMIENTO", joinColumns = {@JoinColumn(name = "TRATAMIENTO_ID")},
inverseJoinColumns = {@JoinColumn(name = "CITA_ID")},
uniqueConstraints = {@UniqueConstraint(columnNames = {"CITA_ID", "TRATAMIENTO_ID"}, name = "CITA_TRATAMIENTO_ID")},
schema = "COLINASCO")
public Set<Tratamiento> getListaTratamientos() {
return listaTratamientos;
}
public void setListaTratamientos(Set<Tratamiento> listaTratamientos) {
this.listaTratamientos = listaTratamientos;
}
}
@Entity
@Table(name = "TRATAMIENTO", schema = "COLINASCO")
public class Tratamiento implements Serializable {
private long id;
private CategoriaTratamiento categoria;
private String nombre;
private double precio;
private Date fechaRegistrado;
private Date fechaActualizado;
/**
* Instantiates a new Tratamiento.
*/
public Tratamiento() {
categoria = null;
nombre = "";
precio = 0;
fechaRegistrado = null;
fechaActualizado = null;
}
/**
* Gets id.
*
* @return the id
*/
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "TRATAMIENTO_GENERATOR")
@SequenceGenerator(name = "TRATAMIENTO_GENERATOR", sequenceName = "TRATAMIENTO_SEQ")
@Column(name = "TRATAMIENTO_ID", nullable = false)
public long getId() {
return id;
}
/**
* Sets id.
*
* @param id the id
*/
public void setId(long id) {
this.id = id;
}
/**
* Gets categoria.
*
* @return the categoria
*/
@Enumerated(EnumType.STRING)
@Column(name = "CATEGORIA", nullable = false)
public CategoriaTratamiento getCategoria() {
return categoria;
}
/**
* Sets categoria.
*
* @param categoria the categoria
*/
public void setCategoria(CategoriaTratamiento categoria) {
this.categoria = categoria;
}
/**
* Gets nombre.
*
* @return the nombre
*/
@Column(name = "NOMBRE", nullable = false)
public String getNombre() {
return nombre;
}
/**
* Sets nombre.
*
* @param nombre the nombre
*/
public void setNombre(String nombre) {
this.nombre = nombre;
}
/**
* Gets precio.
*
* @return the precio
*/
@Column(name = "PRECIO", nullable = false)
public double getPrecio() {
return precio;
}
/**
* Sets precio.
*
* @param precio the precio
*/
public void setPrecio(double precio) {
this.precio = precio;
}
/**
* Gets fecha registrado.
*
* @return the fecha registrado
*/
@Column(name = "FECHA_REGISTRADO", nullable = false)
public Date getFechaRegistrado() {
return fechaRegistrado;
}
/**
* Sets fecha registrado.
*
* @param fechaRegistrado the fecha registrado
*/
public void setFechaRegistrado(Date fechaRegistrado) {
this.fechaRegistrado = fechaRegistrado;
}
/**
* Gets fecha actualizado.
*
* @return the fecha actualizado
*/
@Column(name = "FECHA_ACTUALIZADO", nullable = false)
public Date getFechaActualizado() {
return fechaActualizado;
}
/**
* Sets fecha actualizado.
*
* @param fechaActualizado the fecha actualizado
*/
public void setFechaActualizado(Date fechaActualizado) {
this.fechaActualizado = fechaActualizado;
}
/**
* Funcion que me retorna el nombre del tratamiento por defecto
*
* @return
*/
@Override
public String toString() {
return nombre;
}
}
事情就是当我插入第一个数据时，一切都很顺利。问题是当我插入第二个数据时，例如相同的“Tratamiento”，但“Cita”本身已经不同了，所以在交叉表上，我得到了这个例外：
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1774)
at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Node.fireEvent(Node.java:8413)
at javafx.scene.control.Button.fire(Button.java:185)
at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3757)
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:380)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:294)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$354(GlassViewEventHandler.java:416)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:415)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:937)
at com.sun.glass.ui.win.WinApplication._enterNestedEventLoopImpl(Native Method)
at com.sun.glass.ui.win.WinApplication._enterNestedEventLoop(WinApplication.java:218)
at com.sun.glass.ui.Application.enterNestedEventLoop(Application.java:511)
at com.sun.glass.ui.EventLoop.enter(EventLoop.java:107)
at com.sun.javafx.tk.quantum.QuantumToolkit.enterNestedEventLoop(QuantumToolkit.java:583)
at javafx.stage.Stage.showAndWait(Stage.java:474)
at com.proyectosao.colinasco.controladora.PantallaPrincipalControladora.abrirTab(PantallaPrincipalControladora.java:415)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1769)
at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Node.fireEvent(Node.java:8413)
at javafx.scene.control.Button.fire(Button.java:185)
at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3757)
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:380)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:294)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$354(GlassViewEventHandler.java:416)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:415)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:937)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1769)
... 118 more
Caused by: javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: could not execute statement
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:147)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:155)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:162)
at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1413)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1393)
at com.proyectosao.colinasco.controladora.RegistrarCitaControladora.registrar(RegistrarCitaControladora.java:429)
at com.proyectosao.colinasco.controladora.RegistrarCitaControladora.btnClick(RegistrarCitaControladora.java:224)
... 128 more
Caused by: org.hibernate.exception.ConstraintViolationException: could not execute statement
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:112)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:207)
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:45)
at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1323)
at org.hibernate.action.internal.CollectionRecreateAction.execute(CollectionRecreateAction.java:50)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:582)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:456)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:337)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)
at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1407)
... 131 more
Caused by: org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "uk_n0x746ttlbl6x41chhogj09gi"
Detail: Key (cita_id)=(1) already exists.
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2182)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1911)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:173)
at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:645)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:495)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:441)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:204)
... 139 more
Hibernate不会更新id，因此我无法插入带有相同“Tratamiento”的第二个“Cita”。
这里发生了什么？为什么会这样？
这就是我保存对象的方式：
@FXML
private void registrar(ActionEvent actionEvent) {
Session session = HibernateUtil.getSession();
Transaction tx = null;
try {
//El objecto de empleado ya esta seleccionado cuando se busca
Cita cita = new Cita();
cita.setHora(java.sql.Time.valueOf(localTimeTextFieldHoraCita.getLocalTime()));
cita.setFecha(java.sql.Date.valueOf(datePickerFechaCita.getValue()));
cita.setEmpleado(ec.fromString(comboBoxEmpleadoCita.getSelectionModel().getSelectedItem()));
cita.setPaciente(paciente);
cita.setListaTratamientos(new HashSet<>(tableViewTratamiento.getItems()));
tx = session.beginTransaction();
session.save(cita);
session.flush();
tx.commit();
} catch (HibernateException e) {
if (tx == null) {
tx.rollback();
}
e.printStackTrace();
}
Notificacion.mostrarNotificacion("Registro.", "Cita con " + paciente.getNombre().toUpperCase() + " " + paciente.getApellido().toUpperCase() + " registrada!");
Stage stage = (Stage) btnBuscarPaciente.getScene().getWindow();
stage.close();
}