Hibernate 4 升级到 5 后显示未知实体错误

提示的错误信息如下：

org.hibernate.MappingException: Unknown entity: com.ossez.reoc.common.crm.DoNotCall
  at org.hibernate.metamodel.internal.MetamodelImpl.entityPersister(MetamodelImpl.java:670)
  at org.hibernate.internal.SessionImpl.getEntityPersister(SessionImpl.java:1721)
  at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:118)
  at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:192)
  at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:38)
  at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:177)
  at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:32)
  at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:73)
  at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:713)
  at org.hibernate.internal.SessionImpl.save(SessionImpl.java:705)
  at org.hibernate.internal.SessionImpl.save(SessionImpl.java:700)
  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 org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:350)
  at com.sun.proxy.$Proxy51.save(Unknown Source)
  at com.ossez.reoc.common.Factory.save(Factory.java:159)
  at com.ossez.reoc.common.crm.factories.DoNotCallFactory.save(DoNotCallFactory.java:27)
  at com.ossez.reoc.common.tests.DoNotCallTest.testCreate(DoNotCallTest.java:23)
  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 junit.framework.TestCase.runTest(TestCase.java:176)
  at junit.framework.TestCase.runBare(TestCase.java:141)
  at junit.framework.TestResult$1.protect(TestResult.java:122)
  at junit.framework.TestResult.runProtected(TestResult.java:142)
  at junit.framework.TestResult.run(TestResult.java:125)
  at junit.framework.TestCase.run(TestCase.java:129)
  at junit.framework.TestSuite.runTest(TestSuite.java:252)
  at junit.framework.TestSuite.run(TestSuite.java:247)
  at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:86)
  at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
  at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
  at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
  at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
  at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

这个错误很有可能是你的 SessionFactory 在初始化的时候出现了错误。

导致了 Hibernate 不能找到正确的实体配置。

请参考： Hibernate 4 升级到 Hibernate 5 的时候 SessionFactory 不能使用 中的内容。