FileReference 实现文件的下载

来源：互联网发布：-127的源码编辑：程序博客网时间：2024/06/08 08:38

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
      xmlns:s="library://ns.adobe.com/flex/spark"
      xmlns:mx="library://ns.adobe.com/flex/halo"
      minWidth="1024" minHeight="768">
<s:Button id="downLoad" x="64" y="252" label="下载" click="downLoad_clickHandler(event)"/>
<fx:Script>
<![CDATA[
  import mx.managers.CursorManager;
  import mx.controls.Alert;
  private var FileRF:FileReference;
  private var Url:URLRequest=new URLRequest('http://localhost/NJCIT_WebSite/DownLoadFile/test.rar');
  protected function downLoad_clickHandler(event:MouseEvent):void
  {
   CursorManager.setBusyCursor();
   FileRF=new FileReference();
   FileRF.addEventListener(Event.COMPLETE, DownloadComplete);
   FileRF.addEventListener(IOErrorEvent.IO_ERROR, DownloadIOError);
   FileRF.addEventListener(SecurityErrorEvent.SECURITY_ERROR, DownloadSecurityError);
   FileRF.download(Url);
  }
  private function DownloadIOError(event:IOErrorEvent):void
  {
   CursorManager.removeBusyCursor();
   Alert.show("下载发生错误！");
  }
  private function DownloadSecurityError(event:SecurityErrorEvent):void
  {
   CursorManager.removeBusyCursor();
   Alert.show("下载发生错误！");
  }
  private function DownloadComplete(event:Event):void
  {
   CursorManager.removeBusyCursor();
   Alert.show("下载完成！");
  }
]]>
</fx:Script>
</s:Application>

以上是特定文件的下载，下面两句是文本的下载，很简单吧！

var Fr:FileReference=new FileReference();
Fr.save("内容","FileName.txt");