SSH中添加自定义拦截器报错：Caught Exception while registering Interceptor class,注册时出错

报错信息：

17:08:58,707  WARN InterceptorBuilder:56 - Unable to load config class xxxx  at interceptor - file:/E:/****/struts.xml:12:86 probably due to a missing jar, which might be fine if you never plan to use the aInterceptor interceptor

17:08:58,707 ERROR InterceptorBuilder:38 - Actual exception
Caught Exception while registering Interceptor class xxxx - interceptor - file:/***/struts.xml:12:86
at com.opensymphony.xwork2.ObjectFactory.buildInterceptor(ObjectFactory.java:214)
at com.opensymphony.xwork2.config.providers.InterceptorBuilder.constructInterceptorReference(InterceptorBuilder.java:70)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.lookupInterceptorReference(XmlConfigurationProvider.java:1110)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.buildInterceptorList(XmlConfigurationProvider.java:626)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:440)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:552)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:292)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:112)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:250)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:446)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:490)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)
at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4746)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5399)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)

at java.util.concurrent.FutureTask.run(Unknown Source)

在Struts.xml中的注册信息：

<interceptors>
<interceptor name="xxxInterceptor" class="cn.xxx.interceptor.xxxInterceptor"/>
</interceptors>

自定义拦截器类是没有错的。

问题原因：在我所使用的ssh框架中，类的创建应该是交给spring管理的，所以不能在struts.xml中直接注册，应该先在applicationcontext.xml中注册。

正确写法：

在applicationcontext.xml中，

<bean id="aInterceptor" class="cn.itcast.shop.interceptor.AInterceptor" scope="prototype">
</bean>

然后在struts.xml中引用这个bean

<interceptors>
<interceptor name="aInterceptor" class="aInterceptor"/>
</interceptors>

问题解决。主要还是要具体问题具体分析，了解框架的原理，才能从根本解决问题