2
大家早上好Hibernate和HSQLDB違反主鍵完整性約束
我在Hibernate中使用HSQLDB。我有一種情況，即使我設置了主鍵值，我仍然得到integrity constraint violation: NOT NULL check constraint; SYS_CT_10346 table: NUMBERS column: PK。如下所示。
SEVERE: integrity constraint violation: NOT NULL check constraint; SYS_CT_10346 table: NUMBERS column: PK
org.hibernate.exception.ConstraintViolationException: could not insert: [entity.Numbers]
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:71)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:40)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2158)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2638)
at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:48)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:298)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:181)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:107)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:187)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:172)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:535)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:523)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:519)
at dbconn.NumbersDB.saveNumbers(NumbersDB.java:75)
at gui.UI.saveNumberStateButtonActionPerformed(UI.java:1807)
at gui.UI.access$1800(UI.java:39)
at gui.UI$20.actionPerformed(UI.java:788)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:729)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:688)
at java.awt.EventQueue$3.run(EventQueue.java:686)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:702)
at java.awt.EventQueue$4.run(EventQueue.java:700)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:699)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
Caused by: java.sql.SQLIntegrityConstraintViolationException: integrity constraint violation: NOT NULL check constraint; SYS_CT_10346 table: NUMBERS column: PK
at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCPreparedStatement.fetchResult(Unknown Source)
at org.hsqldb.jdbc.JDBCPreparedStatement.executeUpdate(Unknown Source)
at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:73)
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:33)
... 55 more
這裏是我的映射
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 22 Feb 2016 9:01:34 PM by Hibernate Tools 3.2.1.GA -->
<hibernate-mapping>
<class name="entity.Numbers" table="NUMBERS" schema="PUBLIC" catalog="PUBLIC">
<id name="pk" type="int">
<column name="PK" />
<generator class="native" />
</id>
<many-to-one name="account" class="entity.Account" fetch="select">
<column name="ALLOCATEDACCOUNT"/>
</many-to-one>
<property name="number" type="string">
<column name="NUMBER" length="25" not-null="true" />
</property>
<property name="allocated" type="boolean">
<column name="ALLOCATED" not-null="true" />
</property>
<property name="alias" type="string">
<column name="ALIAS" length="25" />
</property>
<property name="geographic" type="java.lang.Boolean">
<column name="GEOGRAPHIC" />
</property>
</class>
</hibernate-mapping>
我的實體類
package entity;
// Generated 21 Feb 2016 1:44:55 AM by Hibernate Tools 3.2.1.GA
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
/**
* Numbers generated by hbm2java
*/
@Entity
@Table(name = "NUMBERS", schema = "PUBLIC", catalog = "PUBLIC")
public class Numbers implements java.io.Serializable {
private Integer pk;
private String number;
private Account account;
private boolean allocated;
private String alias;
private Boolean geographic;
public Numbers() {
}
public Numbers(Integer pk, String number, boolean allocated) {
this.pk = pk;
this.number = number;
this.allocated = allocated;
}
public Numbers(Integer pk, Account account, String number, boolean allocated, String alias, Boolean geographic) {
this.pk = pk;
this.account = account;
this.number = number;
this.allocated = allocated;
this.alias = alias;
this.geographic = geographic;
}
@Id
@Column(name = "PK", unique = true, nullable = false)
public Integer getPk() {
return this.pk;
}
public void setPk(Integer pk) {
this.pk = pk;
}
@Column(name = "NUMBER", nullable = false, length = 25)
public String getNumber() {
return this.number;
}
public void setNumber(String number) {
this.number = number;
}
@Column(name = "ALLOCATED", nullable = false)
public boolean isAllocated() {
return this.allocated;
}
public void setAllocated(boolean allocated) {
this.allocated = allocated;
}
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "ALLOCATEDACCOUNT")
public Account getAccount() {
return this.account;
}
public void setAccount(Account account) {
this.account = account;
}
@Column(name = "ALIAS", length = 25)
public String getAlias() {
return this.alias;
}
public void setAlias(String alias) {
this.alias = alias;
}
@Column(name = "GEOGRAPHIC")
public Boolean getGeographic() {
return this.geographic;
}
public void setGeographic(Boolean geographic) {
this.geographic = geographic;
}
}
，最後的代碼，我想執行
public boolean saveNumbers(Set numbersSet) {
try {
Session session = HibernateUtil.getSessionFactory().openSession();
session.beginTransaction();
for (Iterator<Numbers> it = numbersSet.iterator(); it.hasNext();) {
Numbers numbers = it.next();
if (numbers.getPk() == null) {
numbers.setPk(new Integer(5));
session.save(numbers);
} else {
numbers = (Numbers) session.merge(numbers);
session.saveOrUpdate(numbers);
}
}
session.getTransaction().commit();
return true;
} catch (HibernateException he) {
he.printStackTrace();
return false;
}
}
例外越來越拋出session.save(numbers);
即使我手動設置主鍵，如上面的示例所示，它仍然會拋出異常。 我試圖設置註釋，如下所示，但這仍然給我同樣的例外。
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Basic(optional = false)
@Column(name = "PK", unique = true, nullable = false)
您的援助將不勝感激
謝謝
不要使用不必要的屬性'@Column（name = 「PK」，獨特= TRUE，可爲空= FALSE）' - '@ Id'意味着它是獨一無二的！我不確定'nullable = false'，但有一個_generated value_，你不需要它。 –
謝謝你的建議，但即使拿出唯一=真，它仍然拋出同樣的例外 – BrianJohnson
不客氣。當然，它並不能解決一個錯誤。這只是一個建議。 –