休眠空指针保存对象

所以我正在运行一个springboot应用程序，当我在OSX上运行时，我得到一个空指针。当我在ubuntu vm上运行相同的应用程序时，它工作的很好，以及其他OSX计算机。我无法弄清楚会导致这种情况。我试图迫使maven重新下载hibernate库，但它没有改变。该模型扩展了JPARepository，并有适当的映射。我能够创建表，以及从数据库中读取，而不是写入它。不确定哪些代码可能是相关的。休眠空指针保存对象

Hibernate: insert into Organization (version, date_created, last_updated, name, org_id) values (?, ?, ?, ?, ?) 
java.lang.NullPointerException 
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.handleAndClearWarnings(SqlExceptionHelper.java:320) 
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.logAndClearWarnings(SqlExceptionHelper.java:273) 
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.close(JdbcCoordinatorImpl.java:529) 
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.release(JdbcCoordinatorImpl.java:421) 
at org.hibernate.id.insert.AbstractReturningDelegate.releaseStatement(AbstractReturningDelegate.java:82) 
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:61) 
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3032) 
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3558) 
at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:98) 
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:492) 
at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:197) 
at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:181) 
at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:216) 
at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:334) 
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:289) 
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:195) 
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:126) 
at org.hibernate.jpa.event.internal.core.JpaPersistEventListener.saveWithGeneratedId(JpaPersistEventListener.java:84) 
at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:206) 
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:149) 
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:75) 
at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:811) 
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:784) 
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:789) 
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1181) 
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:497) 
at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:344) 
at com.sun.proxy.$Proxy89.persist(Unknown Source) 
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:497) 
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:291) 
at com.sun.proxy.$Proxy89.persist(Unknown Source) 
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.save(SimpleJpaRepository.java:433) 
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:497) 
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:436) 
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:421) 
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:393) 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
at org.springframework.data.repository.core.support.RepositoryFactorySupport$DefaultMethodInvokingMethodInterceptor.invoke(RepositoryFactorySupport.java:506) 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) 
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281) 
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodIntercceptor.invoke(CrudMethodMetadataPostProcessor.java:122) 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
at com.sun.proxy.$Proxy103.save(Unknown Source) 
at com.<COMPANY>.<PACKAGE>.DevelopmentDataBootstrap.doBootstrap(DevelopmentDataBootstrap.java:47) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:497) 
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:349) 
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:300) 
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:133) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:408) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1564) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303) 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755) 
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:759) 
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480) 
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:117) 
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:689) 
at org.springframework.boot.SpringApplication.run(SpringApplication.java:321) 
at org.springframework.boot.SpringApplication.run(SpringApplication.java:969) 
at org.springframework.boot.SpringApplication.run(SpringApplication.java:958) 
at com.<COMPANY>.<PACKAGE>.SDKPortalApplication.main(SDKPortalApplication.java:22) 
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:497) 
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53) 
at java.lang.Thread.run(Thread.java:745)

来源

2016-01-26 Casey Daniel

哪种Spring Boot - 您处理的是Hibernate版本？ –

我正在使用1.2.7.RELEASE，最新的一个给我JSON包的依赖性错误。 –

任何其他错误，跟踪之前的警告？ – ben75

您的insert SQL语句似乎在OSX系统中引发警告或无法正常执行。您的堆栈跟踪指向Spring Boot中使用的Hibernate版本（4.3.11.Final）中代码的this line。这就是全部失败方法：

@SuppressWarnings({"ThrowableResultOfMethodCallIgnored"}) 
public void handleAndClearWarnings(
     Statement statement, 
     WarningHandler handler) { 
    // See HHH-9174. Statement#getWarnings can be an expensive call for many JDBC libs. Don't do it unless 
    // the log level would actually allow a warning to be logged. 
    if (LOG.isEnabled(Level.WARN)) { 
     try { 
      walkWarnings(statement.getWarnings(), handler); 
     } 
     catch (SQLException sqlException) { 
      // workaround for WebLogic 
      LOG.debug("could not log warnings", sqlException); 
     } 
    } 
    try { 
     // Sybase fail if we don't do that, sigh... 
     statement.clearWarnings(); 
    } 
    catch (SQLException sqle) { 
     LOG.debug("could not clear warnings", sqle); 
    } 
}

你得到在statement.getWarnings()的NullPointerException异常，这表明statement达到与null值。您应该在两个系统中验证您的数据库版本并检查您的方案是否匹配。

无论如何，从我的角度来看，Hibernate应该处理一个可能的空值。

来源

2016-01-26 15:31:13

你将如何去验证数据库版本？我已经通过自制软件安装了mysql。 –

检查OSX计算机中使用的mysql版本，并确保它与工作系统具有相同的版本。然后检查每个系统的数据库方案是否完全相同。作为最后的手段，试着找出Hibernate试图执行哪个查询并直接回复到您的数据库，以查看抛出什么样的警告。 –

至于第二部分，任何插入语句失败。它能够创建表并从数据库中读取，而不是保存。这对我来说真的很奇怪。 –

休眠空指针保存对象

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