SpringMVC 整合 hibernate 报错：No Session found for current thread

今天在配置SpringMVC+Hibernate4 的时候 报了个No Session found for current thread

上网搜集资料，大概就是以下几种解决方法

• 在hibernate中配置sessionFactory的hibernateProperties参数里添加
                                  <propkey="current_session_context_class">thread</prop>  
• 在spring配置中添加<tx:annotation-driven transaction-manager="transactionManager"/>
• 在service层中的实现类或实现类方法上加@Transactional
• 在web.xml中配置openSessionInView
     

   <filter>
       <filter-name>openSessionInViewFilter</filter-name>
       <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
       <init-param>
           <param-name>singleSession</param-name>
           <param-value>true</param-value>
       </init-param>
   </filter>
   <filter-mapping>
       <filter-name>openSessionInViewFilter</filter-name>
       <url-pattern>*.do</url-pattern>
   </filter-mapping>