package {

     import flash.display.Sprite;

     import flash.net.NetConnection;

     import flash.events.NetStatusEvent;

     import flash.events.AsyncErrorEvent;

     /**

      * @author Frost.Yen

      * @E-mail 871979853@qq.com

      * @create 2015-7-16 上午10:02:15

      *

      */

     public class BandwidthCheck extends Sprite

     {

         private var _nc:NetConnection;

         public function BandwidthCheck()

         {

             _nc = new NetConnection();

             _nc.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);

             _nc.addEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler);

             _nc.client = new Client();

             _nc.connect("rtmp://localhost/bandwidthcheck");

         }

         public function netStatusHandler(event:NetStatusEvent):void

         {

             trace(event.info.code);

             switch (event.info.code)

             {

                 case "NetConnection.Connect.Success":

                     // 调用服务器上的本地带宽检测代码。您不需要编写任何服务器端代码。

                     _nc.call("checkBandwidth", null);

                     break;

             }

         }

         public function asyncErrorHandler(event:AsyncErrorEvent):void

         {

         }

     }

 }

 class Client {

     public function onBWCheck(... rest):Number {

         return 0;

     }

     public function onBWDone(... rest):void {

         var bandwidthTotal:Number;

         if (rest.length > 0){

             bandwidthTotal = rest[0];

             trace("Bandwith from server to client is: " + bandwidthTotal + " Kbps");

         }

     }

 }