flex4訪問amfphp之gateway封裝類

較FLEX3來說，FLEX4在remoting通訊方面做得非常好了，提供了良好的可視化操作與自動產生代碼，但習慣於自己編寫代碼，因爲個人認爲這樣來得更自由、同時節省代碼，所以就寫了一個類，配合單例形式訪問，應更好一點，同時與大家分享，請指教。

封裝類：

package com.zhi.helper { import flash.events.NetStatusEvent; import flash.net.NetConnection; import flash.net.Responder; import mx.rpc.events.FaultEvent; import mx.rpc.events.ResultEvent; import mx.controls.Alert; public class Gateway { private var _conn:NetConnection; private var _remotingGateway:String; private var _statusMsgAry:Array=new Array(); public function Gateway() { } public function connect():void{ this._conn=new NetConnection(); _conn.connect(_remotingGateway); _conn.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);//偵聽連接狀態 } private function netStatusHandler(evt:NetStatusEvent):void { var info:Object = evt.info; Alert.show(info.code); switch(info.code){ case "NetConnection.Connect.Success": this._statusMsgAry.push(1); this._statusMsgAry.push("鏈接成功"); break; case "NetConnection.Connect.Rejected": this._statusMsgAry.push(0); this._statusMsgAry.push("遠端GATEWAY連接被拒絕"); break; case "NetConnection.Connect.Failed": this._statusMsgAry.push(0); this._statusMsgAry.push("遠端GATEWAY連接失敗"); break; case "NetConnection.Connect.Closed": this._statusMsgAry.push(0); this._statusMsgAry.push("遠端GATEWAY連接已經關閉"); break; case "NetConnection.Call.BadVersion": this._statusMsgAry.push(0); this._statusMsgAry.push("遠端GATEWAY錯誤"); break; } } public function call(command:String,onResult:Function,onFault:Function,... arguments):void{ var responder:Responder=new Responder(function(result:Object):void{ onResult(result); },function(fault:Object):void{ onFault(fault); }); arguments.unshift(responder); arguments.unshift(command); this._conn.call.apply(this,arguments); } public function get statusMsg():Array { return _statusMsgAry; } public function get remotingGateway():String { return _remotingGateway; } public function set remotingGateway(value:String):void { _remotingGateway = value; } public function get conn():NetConnection { return _conn; } } }

單例類：

package com.zhi.singleton { import com.zhi.helper.Gateway; public class Sgateway { private static var _instance:Gateway; public function Sgateway() { if(_instance != null) { throw new Error("Singleton Error:com.zhi.singleton.Sgateway"); } } public static function getInstance():Gateway { if(_instance == null) { _instance = new Gateway(); } return _instance; } } }