spring Unable to instantiate Action一个很伤心的错误！

Unable to instantiate Action, u,  defined for 'login' in namespace '/'Error creating bean with name 'u': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'us' must be of type [com.hb.service.impl.UserServiceImpl], but was actually of type [$Proxy13]com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:318)com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:399)com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:198)org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:61)org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:475)org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)root causeorg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'u': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'us' must be of type [com.hb.service.impl.UserServiceImpl], but was actually of type [$Proxy13]org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:305)org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1074)org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:314)org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1093)com.opensymphony.xwork2.spring.SpringObjectFactory.buildBean(SpringObjectFactory.java:141)com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:150)com.opensymphony.xwork2.ObjectFactory.buildAction(ObjectFactory.java:120)com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:299)com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:399)com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:198)org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:61)org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:475)org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)root causeorg.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'us' must be of type [com.hb.service.impl.UserServiceImpl], but was actually of type [$Proxy13]org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:353)org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:440)org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:414)org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:547)org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:156)org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:302)org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1074)org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:314)org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1093)com.opensymphony.xwork2.spring.SpringObjectFactory.buildBean(SpringObjectFactory.java:141)com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:150)com.opensymphony.xwork2.ObjectFactory.buildAction(ObjectFactory.java:120)com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:299)com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:399)com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:198)org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:61)org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:475)org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)

为这个错误忙碌了一天，真的累，原来把自己定义 了一个UserService接口，UserServiceImpl实现这个接口，但是在初始化bean的时候，用UserServiceImpl us ;这样注入行不能，但是把UserService us = UserServiceImpl()；似乎可以了。超级晕死。