Flex3加载外部数据1

<?xml version="1.0" encoding="utf-8"?> 
<!--使用HTTPService类得到同样的结果--> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" creationComplete="loadTxt(event);"> 
  <mx:Style> 
    Application{fontSize:14px;} 
  </mx:Style> 
  <mx:Script> 
    <![CDATA[ 
      import mx.rpc.events.ResultEvent; 
      import mx.events.FlexEvent; 
      import mx.rpc.http.HTTPService; 
      private var txtLoader:HTTPService=new HTTPService(); 
        
      //加载文本代码如下 
      private function loadTxt(evt:FlexEvent):void 
      { 
        txtLoader.url="test1.txt";//文件路径 
        txtLoader.resultFormat="text";//结果的格式是纯文本 
        txtLoader.addEventListener(ResultEvent.RESULT,resultHandler); 
         
        txtLoader.send(); 
      } 
      private function resultHandler(evt:ResultEvent):void 
      { 
        myTxt.text=evt.target.lastResult;//这里为文本控件赋值 
      } 
    ]]> 
  </mx:Script> 
  <mx:VBox> 
    <mx:Text id="myTxt"/> 
  </mx:VBox> 
</mx:Application>

<?xml version="1.0" encoding="utf-8"?> 
<!--使用URLLoader类从文本文件加载文本数据到Flex中,无法通过MXML标签使用该类--> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" creationComplete="loadTxt(event)"> 

  <mx:Script> 
    <![CDATA[ 
      import mx.events.FlexEvent; 
        
      private var loader:URLLoader=new URLLoader(); 
      private function loadTxt(evt:FlexEvent):void 
      { 
        loader.addEventListener(Event.COMPLETE,handleData); 
        loader.load(new URLRequest("test1.txt")); 
      } 
        
      //数据加载完毕，为文本赋值 
      private function handleData(evt:Event):void 
      { 
        myTxt.text=evt.target.data;//URLLoader对象的data域 
      } 
    ]]> 
  </mx:Script> 
  <mx:VBox> 
    <mx:Text id="myTxt" fontSize="18"/> 
  </mx:VBox> 
</mx:Application>

<?xml version="1.0" encoding="utf-8"?> 
<!--使用HTTPService标签，加载值对(url编码的)到Flex的标签和组合框控件--> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" creationComplete="svc.send();"> 
  <mx:Style> 
    Application{fontSize:14px;} 
  </mx:Style> 
  <mx:HTTPService id="svc" url="test2.txt" resultFormat="flashvars"/> 
  <mx:HBox> 
    <mx:Label text="{svc.lastResult.lbl}"/> 
    <mx:ComboBox dataProvider="{svc.lastResult.jobs.split(',')}" /> 
  </mx:HBox> 
</mx:Application>

lbl=职位&jobs=网页设计师,软件工程师,项目经理

<?xml version="1.0" encoding="utf-8"?> 
<!--使用HTTPService类,加载URL编码数据--> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" creationComplete="loadVal(event);"> 
  <mx:Style> 
    Application{fontSize:12px;color:#ff0000;} 
  </mx:Style> 
  <mx:Script> 
    <![CDATA[ 
      import mx.rpc.events.ResultEvent; 
      import mx.events.FlexEvent; 
      import mx.rpc.http.HTTPService; 
      private var svc:HTTPService=new HTTPService(); 
      private function loadVal(evt:FlexEvent):void 
      { 
        svc.url="test2.txt"; 
        svc.resultFormat="flashvars";//结果格式-值对 
        svc.addEventListener(ResultEvent.RESULT,handleResult); 
        svc.send(); 
      } 
      private function handleResult(evt:ResultEvent):void 
      { 
        lbl.text=svc.lastResult.lbl; 
        combox.dataProvider=svc.lastResult.jobs.split(","); 
      } 
    ]]> 
  </mx:Script> 
  <mx:HBox> 
    <mx:Label id="lbl"/> 
    <mx:ComboBox id="combox"/> 
  </mx:HBox> 
</mx:Application> 

<?xml version="1.0" encoding="utf-8"?> 
<!--使用URLLoader类,加载URL编码数据--> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" creationComplete="loadVal(event);"> 
  <mx:Style> 
    Application{font-size:14px;color:green;} 
  </mx:Style> 
  <mx:Script> 
    <![CDATA[ 
      import mx.events.FlexEvent; 
      import flash.net.URLLoader; 
        
      private var loader:URLLoader=new URLLoader(); 
      private function loadVal(evt:FlexEvent):void 
      { 
        loader.addEventListener(Event.COMPLETE,handleComplete); 
        loader.load(new URLRequest("test2.txt")); 
      } 
      private function handleComplete(evt:Event):void 
      { 
        var value:URLVariables=new URLVariables(evt.target.data); 
        lbl.text=value.lbl; 
        combox.dataProvider=value.jobs.split(","); 
      } 
    ]]> 
  </mx:Script> 
  <mx:HBox> 
    <mx:Label id="lbl"/> 
    <mx:ComboBox id="combox"/> 
  </mx:HBox> 
</mx:Application>