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AAS3WDP-Chapter 6 Remote Proxy 杩滅▼浠g悊

杩欓噷鏄竴涓狥lickr鐨勮繙绋嬪浘鐗囨悳绱唬鐞嗗疄渚嬶紝瀵逛簡锛孎lickr鐨勮繙绋嬪浘鐗囨悳绱㈤渶瑕佺敵璇稟PI锛屽埆蹇樹簡鍘荤敵璇蜂竴涓
浠g爜閮ㄥ垎锛岀被PhotoSearchProxy.as锛

package{
	import flash.events.DataEvent;
	import flash.events.Event;
	import flash.events.EventDispatcher;
	import flash.net.URLLoader;
	import flash.net.URLRequest;

	public class PhotoSearchProxy extends EventDispatcher{
		private static const API_KEY:String="c4643072bfc38caa0257f4c039624cb5";//杩欐槸鎴戠殑Flickr Api_key
		private static const FLICKR_URL:String="http://api.flickr.com/services/rest/";//Flickr鐨刟pi鍦板潃

		public function PhotoSearchProxy(){}
		private function onComplete(_evt:Event):void{
			dispatchEvent(new DataEvent(Event.COMPLETE,false,false,XML(_evt.target.data)));
		}
		public function search(userId:String,tags:String):void{
			var loader:URLLoader=new URLLoader();
			var request:URLRequest=new URLRequest(PhotoSearchProxy.FLICKR_URL+"?method=flickr.photos.search&user_id="+userId+"&tags="+tags+"&api_key="+PhotoSearchProxy.API_KEY);
			loader.addEventListener(Event.COMPLETE,onComplete);
			loader.load(request);
		}
	}
}

鍦╨oader杞藉叆request涔嬪悗dispatchEvent涓涓狣ataEvent銆
鍏蜂綋璋冪敤閮ㄥ垎锛

import PhotoSearchProxy;
var flickr:PhotoSearchProxy=new PhotoSearchProxy();
flickr.addEventListener(Event.COMPLETE,onComplete);
flickr.search("","yellow");
function onComplete(_evt:DataEvent){
	trace(_evt.data);
}

瀹為檯鍖朠hotoSearchProxy涔嬪悗锛岃皟鐢╯earch鏂规硶锛宭oad瀹屼箣鍚庢帴鏀禿ispatchEvent鐨凞ataEvent鐨刣ata骞秚race銆
璁板緱浠ュ墠鐪嬭繃鐨勪竴涓狝IR鐨凴SS闃呰鍣ㄤ篃鏄繖鏍峰仛鐨勶紝鍐欎簡涓狤ventDispatcher鐨勫瓙绫伙紝杞藉叆RSS婧愬湴鍧鍚巇ispatchEvent銆傘傘