hibernate常见异常笔记（5）

org.hibernate.TransientObjectException: objectreferencesanunsavedtransientinstance-savethetransientinstancebeforeflushing: top.simba.bean.Courseatorg.hibernate.engine.internal.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:279)
atorg.hibernate.type.EntityType.getIdentifier(EntityType.java:455)
atorg.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:144)
atorg.hibernate.persister.collection.AbstractCollectionPersister.writeElement(AbstractCollectionPersister.java:888)
atorg.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1307)
atorg.hibernate.action.internal.CollectionRecreateAction.execute(CollectionRecreateAction.java:50)
atorg.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:560)
atorg.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:434)
atorg.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:337)
atorg.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)
atorg.hibernate.internal.SessionImpl.flush(SessionImpl.java:1282)
atorg.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:465)
atorg.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:2963)
atorg.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2339)
atorg.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:485)
atorg.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:147)
atorg.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38)
atorg.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:231)
atorg.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:65)
attop.simba.dao.HibernateMMDao.fn02(HibernateMMDao.java:97)
atsun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)
atsun.reflect.NativeMethodAccessorImpl.invoke(UnknownSource)
atsun.reflect.DelegatingMethodAccessorImpl.invoke(UnknownSource)
atjava.lang.reflect.Method.invoke(UnknownSource)
atorg.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
atorg.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
atorg.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
atorg.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
atorg.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
atorg.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
atorg.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
atorg.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
atorg.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
atorg.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
atorg.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
atorg.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
atorg.junit.runners.ParentRunner.run(ParentRunner.java:363)
atorg.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
atorg.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
atorg.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
atorg.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
atorg.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
atorg.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)