Spring注入action为null,先多谢大家的帮助

Spring注入action为null,先谢谢大家的帮助
struts代码

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.1//EN"
	"http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>


	<package name="*" extends="struts-default" namespace="*">
		<global-results>
			<result name="error">/error.jsp </result>
		</global-results>
	</package>
	<package name="default" namespace="/" extends="struts-default">	
		<action name="*Form" class="com.gemway.test.action.CheckFormAction" method="{1}">
			<result>index.jsp</result>
			<result name="act" >index.jsp</result>
		</action>
	</package>



</struts>

action代码

/**  

* @Title: CheckFormAction.java 

* @Package com.gemway.test.action 

* @Description: TODO(用一句话描述该文件做什么) 

* @author  

* @date 2014-5-5 上午10:51:46 

* @version V1.0  

*/ 
package com.gemway.test.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts2.ServletActionContext;

import com.gemway.test.bean.UserBean;
import com.gemway.test.service.CheckFormService;
import com.gemway.test.service.impl.CheckFormServiceImpl;
import com.opensymphony.xwork2.ActionSupport;

/**   
 *    
 * 项目名称：SSHproject   
 * 类名称：CheckFormAction   
 * 类描述：   
 * 创建人：   
 * 创建时间：2014-5-5 上午10:51:46   
 * 修改人：   
 * 修改时间：2014-5-5 上午10:51:46   
 * 修改备注：   
 * @version    
 *    
 */

public class CheckFormAction extends ActionSupport {
	
	private static final long serialVersionUID = 1L;
	private UserBean userBean;
	public UserBean getUserBean() {
		return userBean;
	}

	public void setUserBean(UserBean userBean) {
		this.userBean = userBean;
	}

	
//	CheckFormService checkFormService=new CheckFormServiceImpl();
	CheckFormService checkFormService;
	
	public CheckFormService getCheckFormService() {
		return checkFormService;
	}

	public void setCheckFormService(CheckFormService checkFormService) {
		this.checkFormService = checkFormService;
	}

	@Override
	public String execute() throws Exception {
		System.out.println("execute");
		
		return null;
	}
	
	public String check() throws Exception {
		try {
			
		
		HttpServletRequest request=ServletActionContext.getRequest();
		HttpServletResponse response=ServletActionContext.getResponse();
		System.out.println("check");
		String name=userBean.getUsrAccount();
		String password=userBean.getUsrPassword();
		System.out.println(name);
		System.out.println(password);
		userBean=checkFormService.check(name, password);	//此处的checkFormService为null 所以没有注入成功
		request.setAttribute("userBean", userBean);
		} catch (Exception e) {
			e.printStackTrace();
			throw new RuntimeException("action出错");
		}
		return "act";
	}
	
	

}

spring配置文件

 <bean id="checkFormAction" class="com.gemway.test.action.CheckFormAction" scope="prototype">
    	<property name="checkFormService" ref="checkFormService" />
 </bean>

<bean id="checkFormDao" class="com.gemway.test.dao.impl.CheckFormDaoImpl">
	<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="checkFormService" class="com.gemway.test.service.impl.CheckFormServiceImpl">
    	<property name="checkFormDao" ref="checkFormDao" />
 </bean>

控制台是报空指针：
java.lang.NullPointerException
at com.gemway.test.action.CheckFormAction.check(CheckFormAction.java:85)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:453)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:292)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:255)
at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)