flex 获取服务器里面的配置文件

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="initComplete()" layout="absolute">  
    <mx:Script> 
        <![CDATA[ 
import flash.events.Event;
import flash.net.URLLoader;
import flash.net.URLRequest;
import mx.controls.Alert;

private var loader:URLLoader = new URLLoader();
private var request:URLRequest = new URLRequest("../FlexUrl.properties");
private var urlString:String;
       
private function initComplete():void
   {
      loader.load(request);
      loader.addEventListener(Event.COMPLETE, onComplete);        
   }

private function onComplete(event:Event):void
  {
      var loader:URLLoader = event.target as URLLoader;
      if (loader != null)
      {
         urlString = loader.data;
         urlString = urlString.substr(urlString.indexOf("=")+1)
           Alert.show(urlString);
      }
      else
      {
           Alert.show("loader is not a URLLoader!");
      }
  }
        ]]> 
    </mx:Script> 
      
</mx:Application>


FlexUrl.properties
配置文件放在 本文件夹的上一级文件夹