Spring4 In Action-4.3-@AspectJ-args-往切面传递参数

    //args(trackNumber)：表明传给playTrack的int参数，也会传给切入点
    @Pointcut("execution(* com.zte.sound.service.bean.CompactDisc.playTrack(int))"+" && args(trackNumber)")
    public void trackPlayed(int trackNumber){}

    @After("trackPlayed(trackNumber)")
    public void showCount(int trackNumber){
        System.out.println("当前磁道播放了："+trackNumber+"次");
    }

com.zte.sound.service.bean.CompactDisc.playTrack(int num)在被调用时，
所传入的参数num，
作为切面类showCount方法的参数"trackNumber"传入