struts 拦截器

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC   
        "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"   
        "http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>
    <package name="my-default" extends="struts-default" abstract="true" namespace="/">
            
        <interceptors>
            <interceptor name="someInterceptor" class="cn.zno.someInterceptor" />
            
            <interceptor-stack name="myDefaultStack">
                <interceptor-ref name="defaultStack" />
                <interceptor-ref name="someInterceptor" />
            </interceptor-stack>
        </interceptors>
        
        <default-interceptor-ref name="myDefaultStack" />
        
    </package>
</struts>

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC   
        "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"   
        "struts-2.3.dtd">
<struts>
    <package name="my-view" namespace="/" extends="my-default">
        <!-- 登录 -->
        <action name="login!*" method="{1}" class="cn.zno.LoginAction">
            <interceptor-ref name="myDefaultStack" />
        </action>
        
    </package>
</struts>