<bean id="chkLoginAdvice" class="com.zjm.study.advice.chkLoginAdvice" />
    <aop:config>
        <aop:advisor pointcut="execution(* com.zjm.struts.action.LoginAction.login(..))" advice-ref="chkLoginAdvice" />
    </aop:config>

package com.zjm.struts.action;

public class LoginAction extends DispatchAction {    //分发action
    public ActionForward login(ActionMapping mapping............) {
        //.........
    }
}

package com.zjm.study.advice;

public class chkLoginAdvice implements MethodInterceptor {
    public Object invoke(MethodInvocation arg0) throws Throwable {
        System.out.println("测试拦截");       //这句没打印出来，没拦住.....
        return null;
    }
}