4回答

• 

  mjka5632

  2018-01-16 11:10:23

  刚才亲自试验把注解放在方法set（）中，会出现一模一样的错误

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• 

  mjka5632

  2018-01-16 10:31:45

  很有可能是jar包没下载全，导致没有持久化这个方法，所以当你下载完之后运行就没有问题啦

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• 

  边路老大爷

  2017-08-16 20:58:58

  怎么解决的 ，，，一样的问题

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• 

  飞鸟的心情

  2017-06-20 16:48:16

  这个问题真的很疑惑，我修改了对应的maven依赖包，之后又查了资料（一个挺好的资料：http://www.tuicool.com/articles/3uEbmme），改了启动不好用又还原，下午又好使了！可是代码和刚开始的没有差别。估计还是依赖jar包版本的问题。
  

  
  

  
  

  这是我遇到的错误信息。
  

  org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [beans-new.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory
  
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1589)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:554)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
      at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
      at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
      at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
      at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
      at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1081)
      at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:856)
      at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
      at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
      at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
      at com.imooc.dao.CommodityDaoJpaImplTest.init(CommodityDaoJpaImplTest.java:19)
      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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
      at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
      at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
      at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
      at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
      at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
      at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
      at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
      at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
      at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
      at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
      at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
      at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
      at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
      at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
      at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
      at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
      at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)
      at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
      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 com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
  Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory
      at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:1225)
      at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.access$600(EntityManagerFactoryBuilderImpl.java:119)
      at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:853)
      at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:843)
      at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398)
      at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:842)
      at org.hibernate.jpa.HibernatePersistenceProvider.createContainerEntityManagerFactory(HibernatePersistenceProvider.java:152)
      at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:338)
      at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1648)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1585)
      ... 40 more
  Caused by: org.hibernate.AnnotationException: No identifier specified for entity: com.imooc.entity.Employee
      at org.hibernate.cfg.InheritanceState.determineDefaultAccessType(InheritanceState.java:277)
      at org.hibernate.cfg.InheritanceState.getElementsToProcess(InheritanceState.java:224)
      at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:775)
      at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:3788)
      at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3742)
      at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1410)
      at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1844)
      at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:850)
      ... 48 more

  
  

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