<package name="myPage" namespace="/test" extends="struts-default">
        
        <interceptors>
            <interceptor name="permission" class="cn.xn.interceptor.PermissionInterceptor"/>
            <interceptor-stack name="permissionStack" > [color=#FF0000]//在此处提示错误：The content of element type "interceptor-stack" must match "(interceptor-ref)*".[/color]
                <intercoptor-ref name="defaultStack"/>
                <interceptor-ref name="permission" />
            </interceptor-stack>
        </interceptors>
......
......
......
                <!-- 自定义拦截器 -->
        <action name="myfilter_*" class="com.xn.MyFilterAction" method="{1}">
            <result>/WEB-INF/page/filterMessage.jsp</result>
            <interceptor-ref name="permissionStack"/>
        </action>
        
    </package>