我已经分享了同样的事情

Hi,
I have share the sameple

var urlLoader:URLLoader = new URLLoader();
urlLoader.dataFormat = URLLoaderDataFormat.TEXT; 
urlLoader.addEventListener(Event.COMPLETE, urlLoader_complete);
urlLoader.load(new URLRequest("Enter Your Josn path"));

protected function urlLoader_complete(event:Event):void 
{
   var resultData:Object = JSON.parse(event.target.data);
}

现在JSON数据在resultData变量中......

Now the JSON data is in resultData variable...