我的配置 spring sessionFactory 配置有什么问题?

What's wrong in my confguration spring sessionFactory configuration?

首先,我不能使用Spring的@Transactional注解。我必须完全使用 EJB 容器中的 JTA。目前我正在使用 JBoss AS 7.0 Web-Profile。所以我需要做的是配置 Hibernate 的会话工厂以正确地使用 Spring 环境中的 JTA-transaction。我当前的配置:

部分context.xml配置:

<tx:annotation-driven/>
<tx:jta-transaction-manager  />

<!-- Some other beans -->

<bean id="userTransaction" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName" value="java:comp/UserTransaction"></property>
</bean>

<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="annotatedClasses">
        <list>
            <value>com.badmitrii.db.entity.Employee</value>
        </list>
    </property>
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
            <prop key="hibernate.show_sql">false</prop>
        </props>            
    </property>
</bean>

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

DAO 方法:

public Player getPlayerById(Integer id){
    try {
        userTransaction.begin();
    } catch (Exception e) { }

    //Here is obtaining a Criteria object and setting Restrictions

    try {
        userTransaction.commit();
    } catch (Exception e) { }
    return (Player) criteria.uniqueResult();
}

但是,当我试图在 DAO 方法中获取 Session 时,我得到了以下异常:

org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thread
    org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:134)
    org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:1024)
    com.badmitrii.db.dao.EmployeeDAOImpl.getEmployeeById(EmployeeDAOImpl.java:34)
    com.badmitrii.EmployeeListController.getEmployeeById(EmployeeListController.java:42)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:483)
    org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
    org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
    org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:777)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:706)
    org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
    org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:847)

如何正确配置?

首先删除 JtaTransactionManager 的声明,因为 <tx:jta-transaction-manager /> 已经提供了该声明。

接下来,您没有理由不能在 JTA 环境中使用 @Transactional,这是声明式 tx 管理的全部要点。

您应该将配置的 jta transactionmanager 连接到 LocalSessionFactoryBean 以切换使用的 CurrentSessionContext

<tx:annotation-driven/>
<tx:jta-transaction-manager  />

<!-- Some other beans -->

<bean id="userTransaction" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName" value="java:comp/UserTransaction"></property>
</bean>

<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="jtaTransactionManager" ref="transactionManager" />
    <property name="annotatedClasses">
        <list>
            <value>com.badmitrii.db.entity.Employee</value>
        </list>
    </property>
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
            <prop key="hibernate.show_sql">false</prop>
        </props>            
    </property>
</bean>

然后在你的代码中你可以简单地做这样的事情

@Transactional
public Player getPlayerById(Integer id){
    //Here is obtaining a Criteria object and setting Restrictions
    return (Player) criteria.uniqueResult();
}

更新:

对于 JBoss,<tx:jta-transaction-manager /> 不起作用,因为 JTA 的 TransactionManager 是在 JNDI 中以名称 java:jboss/TransactionManager 而不是其中之一注册的well-known names。您将需要自己声明 JtaTransactionManager bean 并删除 <tx:jta-transaction-manager /> 元素。对于查找,您需要指定 transactionManagerName 或自己执行 JNDI 查找。

<bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager">
    <property name="transactionManagerName" value="java:jboss/TransactionManager" />
</bean>

UserTransaction 以默认名称注册,因此您可以省略在 JtaTransactionManager 中注入它,因为它会自行查找。