ActionScript3 加载外部XML文件

ActionScript3 代码：

private var xmlLoader:URLLoader;
        private function loadXML():void{
            //设置外部XML的路径
            var request:URLRequest = new URLRequest("TestInfo.xml");
            xmlLoader = new URLLoader();
            try {
                xmlLoader.load(request);
            }
            catch (error:SecurityError)
            {
                trace("A SecurityError has occurred.");
            }

            xmlLoader.addEventListener(IOErrorEvent.IO_ERROR,xmlloader_ioError);
            xmlLoader.addEventListener(Event.COMPLETE,xmlloader_complete);
        }

        private function xmlloader_complete(event:Event):void {
            var externalXML:XML; 
            var _name:String;
                try {
                    externalXML = new XML(xmlLoader.data);
                    //此处为 获取XML里第一个节点里的属性Name的值；
                    _name= externalXML.elements()[0].attribute("Name");
                    //sendData();

                } catch (e:TypeError) {
                    trace("Could not parse the XML file.");
                }
        }
        private function xmlloader_ioError(e:IOErrorEvent):void {
            trace("Had problem loading the XML File.");
        }