我正在尝试创建事务管理器，并将其与Hibernate for Oracle一起使用。

我的persistence.xml文件是：

<persistence-unit name="org.drools.persistence.jpa"
        transaction-type="JTA">
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <jta-data-source>jdbc/testDS1</jta-data-source>
        <class>org.drools.persistence.session.SessionInfo</class>
        <class>org.jbpm.persistence.processinstance.ProcessInstanceInfo</class>
        <class>org.drools.persistence.processinstance.WorkItemInfo</class>

        <exclude-unlisted-classes>true</exclude-unlisted-classes>
        <properties>
            <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect" />
            <property name="hibernate.connection.autocommit" value="false" />
            <property name="hibernate.max_fetch_depth" value="3" />
            <property name="hibernate.jndi.class" value="bitronix.tm.jndi.BitronixInitialContextFactory"/> 
            <property name="hibernate.show_sql" value="true" />
            <property name="hibernate.transaction.manager_lookup_class"
                value="org.hibernate.transaction.BTMTransactionManagerLookup" />
        </properties>
    </persistence-unit>

在spring的applicationContext.xml中，我添加了：

<bean id="dataSource" class="bitronix.tm.resource.jdbc.PoolingDataSource" init-method="init" destroy-method="close"> 
           <property name="className" value="oracle.jdbc.xa.client.OracleXADataSource" /> 
           <property name="uniqueName" value="jdbc/testDS1" /> 
           <property name="minPoolSize" value="1" /> 
           <property name="maxPoolSize" value="5" /> 
           <property name="driverProperties">
            <props>
                <prop key="URL">myURL</prop>
                <prop key="user">username</prop>
                <prop key="password">password</prop>
            </props>
        </property>       
    </bean>

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

    <bean id="bitronixTransactionManager" factory-method="getTransactionManager" 
          class="bitronix.tm.TransactionManagerServices" depends-on="dataSource,txManager" 
          destroy-method="shutdown"/>

但是，当我运行时：

EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.drools.persistence.jpa");

我有一个例外：

Caused by: org.hibernate.HibernateException: Could not find datasource: jdbc/testDS1

ds = (DataSource ) NamingHelper.getInitialContext(props).lookup(jndiName);Hibernate基础文件文件除外。

1. 可能是什么问题呢？

2. Hibernate持久性如何知道引用Spring txManagerbean？