Sping注解连接出错：No Session found for current thread

Sping3+Hibernate4整合使用全注解方式时，查数据时总是出错：No Session found for current thread。

web.xml中也加了如下配置，但是还是不行。

<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>

 测试了多次之后发现，是因为以上这段过滤器放在了struts过滤器之后，必须要放在之前。因为过滤器的执行顺序是按配置顺序依次执行的。

 

<!-- openSessionInViewFilter -->
	<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>
	
	<!-- Struts2 Filter -->
	<filter>
		<filter-name>struts2</filter-name>
		<filter-class>
			org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
		<init-param>
			<param-name>config</param-name>
			<param-value>struts-default.xml,struts-plugin.xml,../config/struts-config.xml</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>struts2</filter-name>
		<url-pattern>*.do</url-pattern>
	</filter-mapping>

 

   这个问题搞了好久。坑爹啊。