ssh2框架Struts2中action的属性配置错误问题

今天将搭建一个新项目，发现action中的class配置成了路径而非spring中注入的action，导致进入action中service始终为null

spring中配置

	<bean id="UserInfoDao" class="org.nbu.lab1220.dao.impl.UserInfoDaoImpl" scope="prototype">
		<property name="sessionFactory">
			<ref local="sessionFactory" />
		</property>
    </bean>
	<bean id="UserInfoService" class="org.nbu.lab1220.service.impl.UserInfoServiceImpl" scope="prototype">
		<property name="userInfoDao" ref="UserInfoDao" />
	</bean>	
	<bean id="UserInfoAction" class="org.nbu.lab1220.action.UserInfoAction" scope="prototype">
			<property name="userInfoService" ref="UserInfoService" />
	</bean>	

		<action name ="validUser" class ="org.nbu.lab1220.action.UserInfoAction" method="validUser">
			<result name ="success">/index.jsp</result>
		</action>

改为

		<action name ="validUser" class ="UserInfoAction" method="validUser">
			<result name ="success">/index.jsp</result>
		</action>

即可