首先,我不能使用Spring的@Transactional
注释。我必须确切地使用JTA,它在EJB容器中。目前,我正在使用JBoss AS 7.0 Web-Profile
。因此,我需要做的是配置Hibernate的会话工厂,使其在JTA
的环境中正确地与Spring
事务一起使用。我当前的配置:context.xml
配置的一部分:
<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,当我尝试使用DAO方法获取Session时,得到了以下例外:
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?
最佳答案
首先,删除JtaTransactionManager
的声明,因为<tx:jta-transaction-manager />
已经提供了该声明。
下一步,没有理由不能在声明性TX管理的全部要点的JTA环境中使用@Transactional
。
您应该将已配置的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,在您的鳕鱼中,您只需执行以下操作
@Transactional
public Player getPlayerById(Integer id){
//Here is obtaining a Criteria object and setting Restrictions
return (Player) criteria.uniqueResult();
}
更新:
对于JBoss,由于JTA的
<tx:jta-transaction-manager />
在JNDI中以名称TransactionManager
而不是well-known names之一注册的事实,因此java:jboss/TransactionManager
不起作用。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
或自己进行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,因此您可以在JtaTransactionManager
中省略对它的注入,因为它会自己进行查找。关于java - 我的配置spring sessionFactory配置有什么问题?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/27835633/