使用多个转换管理器时，没有Hibernate会话绑定到该线程

Question

I have created two transaction managers(one for READ requests and another for READ-WRITE requests) and two session factories for the same.

Important snippets are as follows:

<tx:annotation-driven />

<bean id="txManager"
    class="org.springframework.orm.hibernate3.HibernateTransactionManager">
    <property name="sessionFactory" ref="SessionFactory" />
</bean>

<bean id="txManagerRead"
    class="org.springframework.orm.hibernate3.HibernateTransactionManager">
    <property name="sessionFactory" ref="SessionFactory" />
    <qualifier value="READ"/>
</bean>

<bean id="txManagerWrite"
    class="org.springframework.orm.hibernate3.HibernateTransactionManager">
    <property name="sessionFactory" ref="SessionFactory1" />
     <qualifier value="WRITE"/>
</bean>

<bean id="AbstractSessionFactory"
    class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"
    abstract="true">
    <property name="annotatedClasses">
        <list>
.....
....
        </list>
    </property>
    <property name="exposeTransactionAwareSessionFactory">
        <value>true</value>
    </property>
</bean>

<bean id="SessionFactory"
    class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"
    parent="AbstractSessionFactory">
    <property name="hibernateProperties">
        <props>
.........
.........
</props>
</property>
</bean>



<bean id="SessionFactory1"
    class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"
    parent="AbstractSessionFactory">
    <property name="hibernateProperties">
        <props>
.........
.........
</props>
</property>
</bean>

I am getting following exception :

Caused by: org.hibernate.HibernateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here

    at org.springframework.orm.hibernate3.SpringSessionContext.currentSession(SpringSessionContext.java:63)

    at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:574)

    at com.amazon.im.dao.hibernate.GenericDAOImpl.getSession(GenericDAOImpl.java:53)

    at com.amazon.im.dao.hibernate.CategoryDAOImpl.findAllActiveCategories(CategoryDAOImpl.java:54)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Method which calls DAO is as follows:

 @Transactional(rollbackFor = { DependencyException.class, ServiceException.class }, readOnly = true, value="READ")
@Operation("getActiveCategories")
public GetActiveCategoriesResponse getActiveCategories() throws ServiceException, DependencyException
{ .....
......
......
}

Can anyone point me to the part I am doing wrong?

Answer 1

Try using @Transactional("Tx_Manager_Name") as per this . Your configuration seems to be correct since multiple Txn managers are supported through Qualifiers as well .

Answer 2

Your configuration is wrong. Hibernate and even spring allows you to create only one session factory per app. Check out this link : Spring + Hibernate session lifecycle . You can create session per transaction.

Also check this link : http://docs.jboss.org/hibernate/core/3.5/api/org/hibernate/SessionFactory.html