如果不存在子记录，则hibernate删除父记录

时间：2014-07-21 06:47:27

标签： spring hibernate exception-handling

我想从父表中删除一行，如果子表中没有记录（父对子到一对多的映射）。因此，当我尝试删除父记录时，它会给出此异常。

   11:54:16,590 WARN  [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-/127.0.0.1:8080-5) SQL Error: 2292, SQLState: 23000
11:54:16,590 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-/127.0.0.1:8080-5) ORA-02292: integrity constraint (DEPOT_OS.SYS_C007642) violated - child
 record found

11:54:16,596 INFO  [org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl] (http-/127.0.0.1:8080-5) HHH000010: On release of batch it still contained JDBC statem
ents
11:54:16,598 ERROR [org.apache.struts2.dispatcher.Dispatcher] (http-/127.0.0.1:8080-5) Exception occurred during processing request: could not execute statement; SQL
[n/a]; constraint [DEPOT_OS.SYS_C007642]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement: org.springframework.d
ao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; constraint [DEPOT_OS.SYS_C007642]; nested exception is org.hibernate.exception.ConstraintV
iolationException: could not execute statement
        at org.springframework.orm.hibernate4.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:161) [spring-orm-4.0.2.RELEASE.jar:4.0.2.RE
LEASE]
        at org.springframework.orm.hibernate4.HibernateTransactionManager.convertHibernateAccessException(HibernateTransactionManager.java:681) [spring-orm-4.0.2.RELE
ASE.jar:4.0.2.RELEASE]
        at org.springframework.orm.hibernate4.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:563) [spring-orm-4.0.2.RELEASE.jar:4.0.2.RELEASE]
        at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:757) [spring-tx-4.0.2.RELE
ASE.jar:4.0.2.RELEASE]
        at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:726) [spring-tx-4.0.2.RELEASE.jar
:4.0.2.RELEASE]
        at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:478) [spring-tx-4.0.2.RE
LEASE.jar:4.0.2.RELEASE]
        at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:272) [spring-tx-4.0.2.RELEASE.ja
r:4.0.2.RELEASE]
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) [spring-tx-4.0.2.RELEASE.jar:4.0.2.RELEASE]
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) [spring-aop-4.0.2.RELEASE.jar:4.0.2.RELEASE]
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) [spring-aop-4.0.2.RELEASE.jar:4.0.2.RELEASE]
        at com.sun.proxy.$Proxy187.delete(Unknown Source)
        at com.ast.action.admin.AtAuthProfileAction.singledelete(AtAuthProfileAction.java:343) [classes:]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_45]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_45]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_45]
        at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_45]
        at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:450) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:289) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:252) [xwork-core-2.3.16.jar:2.3.16]
        at org.apache.struts2.interceptor.DeprecationInterceptor.intercept(DeprecationInterceptor.java:41) [struts2-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256) [struts2-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:167) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265) [xwork-core-2.3.16.jar:2.3.16]
        at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68) [struts2-core-2.3.16.jar:2.3
.16]
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:249) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:249) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73) [struts2-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91) [struts2-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:252) [struts2-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:139) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164) [struts2-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189) [xwork-core-2.3.16.jar:2.3.16]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at com.ast.interceptors.admin.AuthenticationInterceptor.intercept(AuthenticationInterceptor.java:45) [classes:]
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246) [xwork-core-2.3.16.jar:2.3.16]
        at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54) [struts2-core-2.3.16.jar:2.3.16]
        at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:562) [struts2-core-2.3.16.jar:2.3.16]
        at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77) [struts2-core-2.3.16.jar:2.3.16]
        at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99) [struts2-core-2.3.16.jar:2.3.16]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
        at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169) [jboss-as-web-7.3.0.Final-redhat-14.jar:7.3.0.Fi
nal-redhat-14]
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:145) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:336) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:653) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:920) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
        at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_45]
Caused by: org.hibernate.exception.ConstraintViolationException: could not execute statement
        at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:74) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:189) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:58) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:3355) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:3558) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.action.internal.EntityDeleteAction.execute(EntityDeleteAction.java:102) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:393) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:385) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:308) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:349) [hibernate-core-4.2.8.Final.jar:4.2.8.
Final]
        at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:56) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1159) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:404) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101) [hibernate-core-4.2.8.Final.jar:4.2.8.Fina
l]
        at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
        at org.springframework.orm.hibernate4.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:555) [spring-orm-4.0.2.RELEASE.jar:4.0.2.RELEASE]
        ... 79 more
Caused by: java.sql.SQLIntegrityConstraintViolationException: ORA-02292: integrity constraint (DEPOT_OS.SYS_C007642) violated - child record found

        at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:85)
        at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:133)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:206)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:455)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:413)
        at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:1034)
        at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:194)
        at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:953)
        at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1222)
        at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3387)
        at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3468)
        at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1350)
        at org.jboss.jca.adapters.jdbc.WrappedPreparedStatement.executeUpdate(WrappedPreparedStatement.java:493)
        at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:186) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]

然后我尝试捕获该异常并将我自己的错误消息传递给前端。

public int delete (int aapId) {
try{
    System.out.println("b4 catchedd.");
Session session = sessionfactory.getCurrentSession();
session.delete(session.get(AtAuthProfile.class, aapId));
}
catch (javax.persistence.PersistenceException  e) {
    System.out.println("Inside catch.");
    Throwable t = e.getCause();
    while ((t != null) && !(t instanceof ConstraintViolationException)) {
        t = t.getCause();
    }
    if (t instanceof ConstraintViolationException) {
        System.out.println("catchedd.");
    }
}
return 1;

}

但这个例外从未被发现过。那个代码或任何其他的扫管笏错误地满足了我的要求。我使用spring JTA进行事务管理。

2 个答案:

答案 0 :(得分：1)

由于delete只是一个“标记”调用，因此永远不会执行您的捕获。在调用flush之前，Hibernate不会发出查询。在正常情况下，这发生在事务结束时，而不是在调用delete或persist方法时。

假设您的公共delete方法使用@Transactional注释，此方法将被包装，并且在退出该方法时，包装器将调用commit。这是Hibernate刷新数据源的所有更改并提交更改的地方。所以异常发生在你的方法之外。

你必须将你的捕获量提升一级。在@Transicational方法之外。像这样你应该能够捕获约束违规。

答案 1 :(得分：1)

Hibernate不会这样做。你必须自己实现它：

   A a = b.getA();
   a.removeB(b);
   session.delete(b);
   if (a.getB().isEmpty()) {
      session.delete(a);
   }
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