無法使用MongoDB打開JPA EntityManager進行交易

Question

試圖將Spring，Hibernate-OGM與MongoDB結合使用。但是會遇到交易問題。我知道他們不被MongoDB支持，但是我想使用註解@transactional，所以我不必開始，提交。

異常

org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.IllegalStateException: A JTA EntityManager cannot use getTransaction() 
at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:430) 
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) 
at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:420) 
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:257) 
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) 
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644) 

DB的context.xml

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean"> 
    <property name="persistenceUnitName" value="mongo-hibernate"/>  
    </bean> 

    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> 
    <property name="entityManagerFactory" ref="entityManagerFactory"/> 
    </bean> 

    <tx:annotation-driven transaction-manager="transactionManager"/> 

的persistence.xml

<persistence-unit name="mongo-hibernate" transaction-type="JTA"> 
     <provider>org.hibernate.ogm.jpa.HibernateOgmPersistence</provider> 

     <properties> 
      <property name="hibernate.current_session_context_class" value="thread"/>       
      <property name="hibernate.ogm.datastore.provider" value="mongodb"/> 
      <property name="hibernate.ogm.datastore.grid_dialect" value="org.hibernate.ogm.datastore.mongodb.MongoDBDialect"/>   
      <property name="hibernate.transaction.factory_class" value="org.hibernate.transaction.JTATransactionFactory"/>     
      <property name="hibernate.ogm.datastore.database" value="mongodbtest"/> 
      <property name="hibernate.ogm.mongodb.database" value="mongodbtest"/> 
      <property name="hibernate.ogm.mongodb.host" value="localhost"/> 
      <property name="hibernate.ogm.mongodb.associations.store" value="IN_ENTITY"/> 
     </properties> 

    </persistence-unit> 
</persistence> 

DAO

@PersistenceContext 
protected EntityManager entityManager; 

@Transactional(readOnly = false) 
public <E> void updateObject(E entity) { 
    entityManager.persist(entity); 
} 

任何幫助表示讚賞。謝謝

Answer 1

到目前爲止，我搬到遠一點，我改變了一些文件：

DB的context.xml

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean"> 
    <property name="persistenceUnitName" value="mongo-hibernate"/>  
    </bean> 

    <bean class="com.arjuna.ats.jta.TransactionManager" factory-method="transactionManager" id="arjunaTransactionManager"/> 
    <bean class="com.arjuna.ats.jta.UserTransaction" factory-method="userTransaction" id="arjunaUserTransaction"/> 

    <bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager"> 
    <property name="transactionManager" ref="arjunaTransactionManager"/> 
    <property name="userTransaction" ref="arjunaUserTransaction"/> 
    </bean> 

    <tx:annotation-driven transaction-manager="transactionManager"/> 

DAO：

@PersistenceContext 
protected EntityManager entityManager; 

@Transactional(readOnly = false) 
public <E> void updateObject(E entity) { 

    Session session = entityManager.unwrap(Session.class);   
    org.hibernate.Transaction tx = session.getTransaction(); 
    tx.begin(); 
    session.persist(entity); 
    tx.commit(); 

} 

這樣eveything工作正常，但我真的很喜歡它的工作更簡單：

@Transactional(readOnly = false) 
public <E> void updateObject(E entity) { 
    entityManager.persist(entity); 
} 

有什麼建議嗎？

Answer 2

是的，我有一個建議：閱讀文檔。 ;）

"MongoDB does not support transaction."