cxf spring @Autowired注入null

配置文件

    <!-- 配置文件资源导入 -->
    <import resource="classpath:META-INF/cxf/cxf.xml"/>
    <import resource="classpath:META-INF/cxf/cxf-extension-soap.xml"/>
    <import resource="classpath:META-INF/cxf/cxf-servlet.xml"/>

  <jaxws:server id="spiderManager" serviceClass="xingchao.admin.cxf.ISpiderManager" address="/spiderManager"> 
    <jaxws:serviceBean>  
        <bean class="xingchao.admin.cxf.SpiderManagerImpl" />
    </jaxws:serviceBean>  
  </jaxws:server> 

接口实现类

 @WebService(endpointInterface="xingchao.admin.cxf.ISpiderManager",serviceName="spiderManager")
public class SpiderManagerImpl implements ISpiderManager {

    @Autowired
    private IKarafService karafService;

注入的karafService是null，controller里面可以注入进去

IKarafService 这个类的实现类你注解了么？或使用xml配置了么？