AS3从XML中删除名称空间

Posted 2021-02-24

If you don't deal with namespaces in XML correctly they can break your parsing in AS3. One way of getting around this is to remove the namespace from the XML a using regular expression.

package  {
 
	import flash.display.MovieClip;
	import flash.net.URLLoader;
	import flash.net.URLRequest;
	import flash.net.URLLoaderDataFormat;
	import flash.events.Event;
	import flash.events.IOErrorEvent;
 
	public class Main extends MovieClip {
 
		public function Main() {
			var xmlLoader:URLLoader = new URLLoader();
			xmlLoader.dataFormat = URLLoaderDataFormat.TEXT;
			xmlLoader.addEventListener(Event.COMPLETE, onXmlLoader_COMPLETE);
			xmlLoader.addEventListener(IOErrorEvent.IO_ERROR , onXmlLoader_IO_ERROR);
			xmlLoader.load(new URLRequest("data.xml"));
		}
 
		private function onXmlLoader_COMPLETE(e:Event):void
		{
			var myXml:XML = new XML(e.target.data);
			var myXmlStr:String = myXml.toString();
			var xmlnsPattern:RegExp = new RegExp("xmlns[^"]*"[^"]*"", "gi");
			myXmlStr = myXmlStr.replace(xmlnsPattern, "");
			myXml = new XML(myXmlStr);
			trace(myXml.message);
		}
 
		private function onXmlLoader_IO_ERROR(event:IOErrorEvent):void
		{
			trace("onXmlLoader_IO_ERROR()");
			trace("event.text: "+String(event.text));
		}
 
	}
}
 
///////////////////////////////////////////////////////////////////
// The 'data.xml' looks like this ...
// 
// <?xml version="1.0" encoding="utf-8" ?>
// <root xmlns="http://www.adrianparr.com">
//     <message>Hello World</message>
// </root>
//
//
// And the output will be ...
//
// Hello World