as 3读取xml实现代码

as3对xml的操作实在是太方便了(e4x ecmascript for xml 没错.就是ecmascript 如果js比较好的同学对这个也很熟悉吧)..

package
{
import flash.display.*;
import flash.text.*;
import flash.xml.*;
import flash.net.*;
import flash.events.event;

public class classsubfeed extends sprite
{
  var temp:textfield;
  var myxmlurl:urlrequest;
  var myloader:urlloader;
  var xmlurl:string;
  var xmlcontent:xml;

  public function classsubfeed()
  {
   temp = new textfield();
   temp.x = 10;
   temp.y = 10;
   temp.width = 530;
   temp.height = 350;
   temp.border = true;
   temp.bordercolor = 0x669900;
   temp.multiline = true;
   temp.htmltext = 'loading.....';
   addchild(temp);

   // xml地址
   xmlurl = "http://www.226511.cn/xml/5230.xml";
   this.loadxml(xmlurl);
  }

  private function loadxml(xmlurl:string):void
  {
   myxmlurl = new urlrequest(xmlurl);
   myloader = new urlloader(myxmlurl);
   myloader.addeventlistener(event.complete, onloaded);
  }

  private function onloaded(event):void
  {
   xmlcontent = xml(myloader.data);
   temp.htmltext = '已经读取feed,正在准备.....';
   this.parsedata(xmlcontent);
  }

  private function parsedata(xmlcontent:xml):void
  {
   var rrstitle:string = xmlcontent.channel.title;
   var rrslink:string = xmlcontent.channel.link;
   temp.htmltext = "<h3><a href='" + rrslink + "' target='_blank'>" + rrstitle + "</a></h3><br /><br />";

   for each(var item:xml in xmlcontent..item)
   {
    var itemtitle:string = item.title.tostring();
    var itemlink:string = item.link.tostring();
    temp.htmltext += "<div><h4><a href='" + itemlink + "' target='_blank'>" + itemtitle + "</a></h4></div><br /><br />";
   }
  }
}
}

实例二，读取外部xml 文件

<?xml version="1.0" encoding="utf-8"?>
<mdragon table="xxxxx"   question1="xxxxxx"   question2="xxxxxxxxxxxxxxx"     time="1"    background="2">

<question answer="a" value="期间，与人说话时）">
           <answers value="a:戴口罩"/>
           <answers value="b:保持一段距离"/>
           <answers value="c:与往常一样"/>
           <answers value="d:少说几句"/>
</question>

</mdragon>
------------------------------readxml.as-------------------------------------------

package
{
import flash.events.event;
import flash.net.urlloader;
import flash.net.urlrequest;
import flash.xml.xmldocument;
import flash.text.textfield;
import flash.text.textformat;
import flash.text.textfieldautosize;
import flash.display.displayobjectcontainer;
import flash.display.sprite

public class readxml extends sprite
{
private var myxml:xml;
private var myloader:urlloader;
private var string:string;
private var mystr:string=new string();
private var myxmlurl:urlrequest;
private var txt:textfield=new textfield();
private var format:textformat = new textformat();

public function readxml(myxmlurl:string):void
{
   myxmlurl=new urlrequest(myxmlurl);
   myloader=new urlloader();
   myloader.addeventlistener(event.complete,xmlloaded);
   myloader.load(myxmlurl);


}

public function xmlloaded(evt:event):void
{
   myxml=new xml(evt.currenttarget.data);
   mystr=this.myxml.question[0].@value;

   txt.text=mystr;

   txt.autosize = textfieldautosize.left;
            txt.background = true;
            txt.border = true;

            format.font = "宋体";
            format.color = 0x000000;
            format.size = 15;
            format.underline = false;

            txt.defaulttextformat=format;

   txt.x=50;
   txt.y=200;

   trace(myxml);
   trace(mystr);

}

public function returntext(target:displayobjectcontainer):void
{

   target.addchild(txt);

}

}//end of class
}//end of package

补充：flash教程,As3.0