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我使用Hibernate 4.0 Final和ojdbc6來開發我的Web應用程序。除非我嘗試插入新的父/子關係，否則一切都可以。首先，這些都是實體：當我提交事務時違反了完整性約束
@Entity
@Table(name = "EMPLOYEE")
public class Employee implements Serializable, Cloneable {
@Id
@SequenceGenerator(name = "seq", sequenceName = "P_SEQ")
@GeneratedValue(generator = "seq")
@Column(name = "ID_EMPLOYEE")
private long idEmployee;
......
@OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER, mappedBy = "employee", orphanRemoval = true)
@Fetch(FetchMode.SELECT)
@BatchSize(size = 10)
private Set<Address> addresses;
......
}
@Entity
@Table(name = "ADDRESS")
public class Address implements Serializable, Cloneable, Comparable {
@Id
@SequenceGenerator(name = "seq", sequenceName = "P_SEQ")
@GeneratedValue(generator = "seq")
@Column(name = "ID_ADDRESS")
private long idAddress;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "ID_EMPLOYEE")
private Employee employee;
.......
}
讓我們來看看這兩個場景：
- 僱員已經存在，我嘗試將新地址添加到它 - > 它可以正常工作。
- 員工還不存在，我嘗試創建一個新員工。兩種不同的情況：
- a）我只插入一名員工（沒有地址） - >它正常工作。
- b）我插入和員工及其地址 - >它失敗。我不得不說這必須是一個原子事務。我的意思是，我需要立即創建（保存）一個員工和一個地址。
這是事務處理程序：
public static void save(Employee employee) throws HibernateException, Exception {
Session session = HibernateUtil.getCurrentSession();
session.beginTransaction();
try {
session.saveOrUpdate(employee);
} catch (Exception ex) {
session.refresh(employee);
HibernateUtil.closeSession();
throw ex;
}
HibernateUtil.commitTransaction();
}
public static void commitTransaction() throws Exception {
Transaction tx = getSessionFactory().getCurrentSession().getTransaction();
try {
if (tx != null && !tx.wasCommitted() && !tx.wasRolledBack()) {
tx.commit();
}
} catch (Exception ex) {
tx.rollback();
throw ex;
} finally {
closeSession();
}
}
正如你可以想像，在2.B情況下是一個我很擔心。我調試的交易，這是我所得到的，當我調用save（）方法（這是一個DAO類）：
- 的session.saveOrUpdate（員工）方法成功執行（我可以檢查保存的員工是否有地址）。此外，它的
idEmployee已正確設置（取自序列），並且地址綁定到該員工，並具有有效的idAddress（也取自該序列）。 - 在執行commitTransaction（）方法的過程中，我得到
org.hibernate.exception.ConstraintViolationException，雖然idEmployee和idAddress先前都已正確設置。
簡而言之，異常在提交過程中出現。這就像是這樣開始提交孩子（地址）而不是父母（員工）。
我在做什麼錯？有誰能夠幫助我？提前致謝。
已更新。以上，你可以看到問題中涉及的兩個類的主要部分。現在，在這裏，除了追蹤異常外，您還可以調用它們。他們按照他們所稱的順序。
屬於該DataBacking類：
public void save(ActionEvent event) {
try {
EmployeeDAO.save(selectedEmployee);
newEmployee(); //reset the employee and its collections
} catch (ConstraintViolationException ex) {
Utilities.addFacesMessage(FacesMessage.SEVERITY_WARN, ex.getMessage(), "");
} catch (Exception ex) {
Utilities.log("error", ex.getCause().toString());
Utilities.addFacesMessage(FacesMessage.SEVERITY_WARN, ex.getMessage(), "");
}
}
屬於該EmployeeDAO類：
public static void save(Employee employee) throws HibernateException, Exception {
Session session = HibernateUtil.getCurrentSession();
session.beginTransaction();
try {
session.saveOrUpdate(employee);
} catch (Exception ex) {
session.refresh(employee);
HibernateUtil.closeSession();
throw ex;
}
HibernateUtil.commitTransaction();
}
屬於HibernateUtil類：
public static void commitTransaction() throws Exception {
Transaction tx = getSessionFactory().getCurrentSession().getTransaction();
try {
if (tx != null && !tx.wasCommitted() && !tx.wasRolledBack()) {
tx.commit();
}
} catch (Exception ex) {
tx.rollback();
throw ex;
} finally {
closeSession();
}
}
權後，該EmployeeDAO.save （）方法調用session.SaveOrUpdate（employee），我得到以下跟蹤：
2013-03-12 07:22:55,958 [DEBUG, org.hibernate.internal.SessionImpl] Opened session at timestamp: 13630693759
2013-03-12 07:22:57,584 [DEBUG, org.hibernate.engine.transaction.spi.AbstractTransactionImpl] begin
2013-03-12 07:22:57,585 [DEBUG, org.hibernate.engine.jdbc.internal.LogicalConnectionImpl] Obtaining JDBC connection
2013-03-12 07:22:57,586 [DEBUG, org.hibernate.engine.jdbc.internal.LogicalConnectionImpl] Obtained JDBC connection
2013-03-12 07:22:57,587 [DEBUG, org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction] initial autocommit status: true
2013-03-12 07:22:57,587 [DEBUG, org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction] disabling autocommit
2013-03-12 07:23:00,285 [DEBUG, org.hibernate.SQL]
select
P_SEQ.nextval
from
dual
2013-03-12 07:23:00,361 [DEBUG, org.hibernate.id.SequenceGenerator] Sequence identifier generated: BasicHolder[java.lang.Long[5665]]
2013-03-12 07:23:00,365 [DEBUG, org.hibernate.event.internal.AbstractSaveEventListener] Generated identifier: 5665, using strategy: org.hibernate.id.SequenceGenerator
2013-03-12 07:23:00,411 [DEBUG, org.hibernate.SQL]
select
P_SEQ.nextval
from
dual
2013-03-12 07:23:00,417 [DEBUG, org.hibernate.id.SequenceGenerator] Sequence identifier generated: BasicHolder[java.lang.Long[5666]]
2013-03-12 07:23:00,421 [DEBUG, org.hibernate.event.internal.AbstractSaveEventListener] Generated identifier: 5666, using strategy: org.hibernate.id.SequenceGenerator
而且在提交之後已被調用：
2013-03-12 07:24:53,288 [DEBUG, org.hibernate.engine.transaction.spi.AbstractTransactionImpl] committing
2013-03-12 07:24:53,336 [DEBUG, org.hibernate.event.internal.AbstractFlushingEventListener] Processing flush-time cascades
2013-03-12 07:24:53,343 [DEBUG, org.hibernate.event.internal.AbstractFlushingEventListener] Dirty checking collections
2013-03-12 07:24:53,403 [DEBUG, org.hibernate.engine.internal.Collections] Collection found: [org.svq.pol.gesper.bean.Employee.addresses#5665], was: [<unreferenced>] (initialized)
2013-03-12 07:24:53,439 [DEBUG, org.hibernate.event.internal.AbstractFlushingEventListener] Flushed: 2 insertions, 0 updates, 0 deletions to 2 objects
2013-03-12 07:24:53,440 [DEBUG, org.hibernate.event.internal.AbstractFlushingEventListener] Flushed: 1 (re)creations, 0 updates, 0 removals to 1 collections
2013-03-12 07:24:53,453 [DEBUG, org.hibernate.internal.util.EntityPrinter] Listing entities:
2013-03-12 07:24:53,454 [DEBUG, org.hibernate.internal.util.EntityPrinter] org.svq.pol.gesper.bean.Address{address=fasdf, pc=, city=fadsf, idAddress=5666, operator=xxxxx, province=, telef2=, movDate=Tue Mar 12 07:21:15 CET 2013, telef1=, employee=org.svq.pol.gesper.bean.Employee#5665, version=0}
2013-03-12 07:24:53,456 [DEBUG, org.hibernate.internal.util.EntityPrinter] org.svq.pol.gesper.bean.Employee{surname=fadsf, user=null, dob=Tue Jan 01 00:00:00 CET 1980, address=[org.svq.pol.gesper.bean.Address#5666], pob=fadsf, operator=xxxxx, movDate=Tue Mar 12 07:21:15 CET 2013, version=0, name=fasdf, gender=H, idEmployee=5665, id=12345678}
2013-03-12 07:24:53,572 [DEBUG, org.hibernate.SQL]
insert
into
EMPLOYEE
(SURNAME, ID, MOV_DATE, DOB, GENDER, POB, OPERATOR, USER, VERSION, ID_EMPLOYEE)
values
(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
2013-03-12 07:24:53,793 [DEBUG, org.hibernate.SQL]
insert
into
ADDRESS
(pc, address, MOV_DATE, OPERATOR, ID_EMPLOYEE, city, province, telef_1, telef_2, version, ID_ADDRESS)
values
(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
2013-03-12 07:24:53,943 [DEBUG, org.hibernate.engine.jdbc.spi.SqlExceptionHelper] ORA-02291: integrity constraint (PERPLADM.ADDRESS_EMPLOYEE_FK) violated - parent key not found
[n/a]
java.sql.SQLIntegrityConstraintViolationException: ORA-02291: integrity constraint (PERPLADM.ADDRESS_EMPLOYEE_FK) violated - parent key not found
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:445)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:879)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:450)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:192)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:207)
at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:1044)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1329)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3584)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3665)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1352)
at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:105)
at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:105)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:122)
at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81)
at $Proxy46.executeUpdate(Unknown Source)
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:56)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2849)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3290)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:80)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:273)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:265)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:186)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:323)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1081)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:315)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)
at org.svq.pol.gesper.utility.HibernateUtil.commitTransaction(HibernateUtil.java:57)
at org.svq.pol.gesper.dao.EmployeeDAO.save(EmployeeDAO.java:110)
at org.svq.pol.gesper.backing.DataBacking.save(DataBacking.java:498)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.apache.el.parser.AstValue.invoke(AstValue.java:262)
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:148)
at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88)
at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:769)
at javax.faces.component.UICommand.broadcast(UICommand.java:300)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:409)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
2013-03-12 07:24:54,027 [WARN, org.hibernate.engine.jdbc.spi.SqlExceptionHelper] SQL Error: 2291, SQLState: 23000
2013-03-12 07:24:54,027 [ERROR, org.hibernate.engine.jdbc.spi.SqlExceptionHelper] ORA-02291: integrity constraint (PERPLADM.ADDRESS_EMPLOYEE_FK) violated - parent key not found
向我們展示代碼，並粘貼異常的完整堆棧跟蹤。 – 2013-03-11 08:36:50
我已經用涉及的代碼和異常的堆棧跟蹤更新了我的問題。對不起，延誤了。 – Julio 2013-03-12 07:21:13
我終於找到了我自己的問題的一個部分答案，我在最後添加了。 – Julio 2013-03-16 12:37:21