Hibernate/Spring/Struts架构使用OpenSessionInView的问题

	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

servletContext.setAttribute(
					WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, this.context);;

String attrName = getServletContextAttributeName();;
getServletContext();.setAttribute(attrName, wac);;

WebApplicationContext wac =
				WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext(););;

	<filter>
        <filter-name>OpenSessionInViewFilter</filter-name>
        <filter-class>org.springframework.orm.hibernate.support.OpenSessionInViewFilter</filter-class>
    </filter>
    
    <filter-mapping>
        <filter-name>OpenSessionInViewFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    
    <listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

......

<plug-in className="org.springframework.web.struts.ContextLoaderPlugIn">
	<set-property property="contextConfigLocation" 
				  value="/WEB-INF/action-servlet.xml" 
	/>
</plug-in>

<plug-in
className="org.springframework.web.struts.ContextLoaderPlugIn">
<set-property property="contextConfigLocation"
value="/WEB-INF/applicationContext.xml,
/WEB-INF/action-servlet.xml"/>
</plug-in>

/**
	 * Return the delegate Action for the given mapping.
	 * <p>The default implementation determines a bean name from the
	 * given ActionMapping and looks up the corresponding bean in the
	 * WebApplicationContext.
	 * @param mapping the Struts ActionMapping
	 * @return the delegate Action
	 * @throws BeansException if thrown by WebApplicationContext methods
	 * @see #determineActionBeanName
	 */
	protected Action getDelegateAction(ActionMapping mapping); throws BeansException {
		WebApplicationContext wac = getWebApplicationContext(getServlet();, mapping.getModuleConfig(););;
		String beanName = determineActionBeanName(mapping);;
		return (Action); wac.getBean(beanName, Action.class);;
	}

	/**
	 * Fetch ContextLoaderPlugIn's WebApplicationContext from the
	 * ServletContext, containing the Struts Action beans to delegate to.
	 * @param actionServlet the associated ActionServlet
	 * @param moduleConfig the associated ModuleConfig
	 * @return the WebApplicationContext
	 * @throws IllegalStateException if no WebApplicationContext could be found
	 * @see DelegatingActionUtils#getRequiredWebApplicationContext
	 * @see ContextLoaderPlugIn#SERVLET_CONTEXT_PREFIX
	 */
	protected WebApplicationContext getWebApplicationContext(
			ActionServlet actionServlet, ModuleConfig moduleConfig); throws IllegalStateException {
		return DelegatingActionUtils.getRequiredWebApplicationContext(actionServlet, moduleConfig);;
	}

<plug-in 
className="org.springframework.web.struts.ContextLoaderPlugIn"> 
<set-property property="contextConfigLocation" 
value="/WEB-INF/applicationContext.xml"/> 
</plug-in>

<bean name="/test" class="com.xy.action.TestAction">
  <property name="testBo"><ref bean="testBoProxy"/></property>
</bean>

<bean name="/test" class="com.xy.action.TestAction">
  <property name="testBo"><ref bean="testBoProxy"/></property>
</bean>

// Check if bean definition exists in this factory.
			if (getParentBeanFactory(); != null && !containsBeanDefinition(beanName);); {
				// Not found -> check parent.
				if (getParentBeanFactory(); instanceof AbstractBeanFactory); {
					// Delegation to parent with args only possible for AbstractBeanFactory.
					return ((AbstractBeanFactory); getParentBeanFactory(););.getBean(name, requiredType, args);;
				}
				else if (args == null); {
					// No args -> delegate to standard getBean method.
					return getParentBeanFactory();.getBean(name, requiredType);;
				}
				else {
					throw new NoSuchBeanDefinitionException(beanName,
							"Cannot delegate to parent BeanFactory because it does not supported passed-in arguments");;
				}
			}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
	<import resource="SpringConfig/module1.xml" />
                <import resource="SpringConfig/module2.xml" />
                <import resource="SpringConfig/module3.xml" />

 	<bean id="dataSource"
		class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName">
			<value>org.gjt.mm.mysql.Driver</value>
		</property>
		<property name="url">
			<value>jdbc:mysql://localhost/airline</value>
		</property>
		<property name="username">
			<value>root</value>
		</property>
		<property name="password">
			<value>123456</value>
		</property>
	</bean>
         ...
</beans>

&#65279;<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<!-- 数据访问层 -->
<bean id="testDao" class="com.xy.dao.TestDao">
  <property name="sessionFactory"><ref bean="sessionFactory"/></property>
</bean>
<!-- 业务罗基层 -->
<bean id="testBo" class="com.xy.bo.TestBo">
  <property name="testDao"><ref bean="testDao"/></property>
  <!-- <property name="transactionManager"><ref bean="transactionManager"/></property> -->
</bean>
<!-- Action层 -->
<bean name="/test" class="com.xy.action.TestAction">
  <property name="testBo"><ref bean="testBoProxy"/></property>
</bean>
</beans>