假设您将JPA与Spring一起使用,将Hibernate用作JPA实现 . JPA事务模式是"JTA",因此您需要将容器transactionManager传递给Hibernate . 经典的答案是将 hibernate.transaction.manager_lookup_class
设置为服务器的匹配类 .
但是,我认为让这取决于服务器特定配置是一种耻辱,因为您已经在Spring中找到了带有 <tx:jta-transaction-manager>
的transactionManager .
有没有办法使用类似的配置将此事务管理器提供给Hibernate
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="persistence_unit_name"/>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>
</property>
<property name="jpaProperties">
<props>
<prop key="hibernate.transaction.manager_lookup_class">
org.hibernate.transaction.SunONETransactionManagerLookup
</prop>
</props>
</property>
</bean>
<tx:jta-transaction-manager/>
目标是摆脱 org.hibernate.transaction.SunONETransactionManagerLookup
属性 . 顺便说一句,我真的有两个不同的服务器实现 .
编辑:没有事务管理器配置,Hibernate在创建EntityManagerFactory时会出现问题:
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in URL [file:/C:/configuration/afoCuad-metier-ear/entitymanager-base-context.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: fr.tm.ima.cuad-afoCuad-metier-ejb-PU] Unable to build EntityManagerFactory
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1420)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findDefaultEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:529)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:495)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.resolveEntityManager(PersistenceAnnotationBeanPostProcessor.java:656)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.getResourceToInject(PersistenceAnnotationBeanPostProcessor.java:629)
at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:147)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:338)
... 80 more
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: fr.tm.ima.cuad-afoCuad-metier-ejb-PU] Unable to build EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:901)
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:74)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:225)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:308)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)
... 93 more
Caused by: org.hibernate.HibernateException: The chosen transaction strategy requires access to the JTA TransactionManager
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:401)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1385)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:954)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:892)
... 98 more
3 回答
不幸的是,如果像许多其他JBoss产品那样查看Hibernate API,他们就会有一个通常称为Configuration的类来保存大部分(如果不是全部)主配置 . 不幸的是,他们(JBoss)似乎喜欢为参数和类保存“Strings”来定位实例 . 几乎总是不可能简单地设置一个实际的预制准备好去设置 .
我将要提出类似于以下内容的内容,原因与您提到的相同 .
创建TransactionManagerLookup的实现
包含一个setter,它接受一个TM并设置一个线程局部变量实例 .
在传递给Configuration的属性中传递TML的名称 .
当您的TML启动时,将线程局部变量复制到您的实例fie.d.
一切都完成后
清除threadlocal .
首先 - 你真的需要JTA吗?通常 Spring 天冬眠不需要它 . 你可以使用一个简单的
JpaTransactionManager
/HibernateTransactionManager
.如果你真的想要JTA,那么你需要一个JTA提供者 . 如果未在应用程序服务器中运行,请检查this question以了解如何在servlet容器中使用JTA . (另请看this question)
最后,hibernate docs为容器管理的事务指定:
第二点可能是你错过了什么?
除了那个文档(下一节)之外,文档说的是如果你想要声明式事务,那么hibernate不是你应该看的地方 . 你需要创建一个拦截器 . 这正是 Spring 季交易经理所追求的 . 鉴于您的技术堆栈(Spring),这将是我的选择 .
如果您不希望依赖单个JTA提供程序,那么请进行两次构建 . 例如,maven有“maven profiles”,它允许为不同的环境进行构建 .
我最近用JPA / Grails做了一些事情,我使用的配置是这样的:
这有帮助吗?