1.FileReferenceList

2.FileReference

3.URLRequest

4.URLVariables

封装对象:
CURL

参考代码:

private var files:FileReferenceList=new FileReferenceList;
files.addEventListener(Event.SELECT, onSelectFiles);
files.browse([new FileFilter("图片", "*.jpg;*.gif;*.png", "bmp")]);

protected function onSelectFiles(event:Event):void
{

    for each (var f:FileReference in files.fileList)
    {

        var fileItem:Object=new Object;
        fileItem.file=f;
        fileItem.name="NoName";
        fileItem.typeid=11;
        fileItem.filename=f.name;
        selectFiles.addItem(fileItem);
    }

}
protected function uploadI_clickHandler(event:MouseEvent):void
{
        if (selectFiles.length > 0)
        {

            var item:Object=selectFiles.removeItemAt(0);

            var curl:CURL=new CURL;
            curl.url="UploadImageServlet";
            curl.setData("name", item.name);
            curl.setData("type", item.typeid);
            curl.setData("imagedesc", item.imagedesc);
            var file:FileReference=item.file as FileReference;
            if (file != null)
            {
                file.addEventListener(Event.COMPLETE, onFileUploadComplete);
                file.upload(curl.urlRequest);
            }

        }
        
}
    protected function onFileUploadComplete(event:Event):void
{
    var f:FileReference=event.currentTarget as FileReference;
    f.removeEventListener(Event.COMPLETE, onFileUploadComplete);
    uploadI_clickHandler(null);
}

使用的原生态对象
1 URLStream
2 URLRequest
3 URLVariables  

封装对象:
CURL

源码如下:

package incisive.framework.c.factory
{
 import flash.net.URLRequest;
 import flash.net.URLVariables;

 public class CURL
 {

  public static const urlbase:String="http://localhost:8080/bss/";
  private var _urlRequest:URLRequest=new URLRequest;
  private var _url:String;
  private var vars:URLVariables=new URLVariables;

  public function CURL(u:String=null)
  {
   if (u != null)
   {
    _urlRequest=new URLRequest(urlbase + u);
   }
  }

 

  public function get urlRequest():URLRequest
  {
   if (_urlRequest != null)
    _urlRequest.data=vars;
   return _urlRequest;
  }

  public function get url():String
  {
   return _url;
  }

  public function set url(value:String):void
  {
   _url=value;
   _urlRequest=new URLRequest(urlbase + value);
  }

  public function setData(key:String, value:String, encode:Boolean=false):void
  {
   if (encode)
   {
    vars[key]=encodeURI(value);
   }
   else
    vars[key]=value;

  }
 }
}

Stream 如何如下:

 curl:CURL = new CURL;
 curl.url = u;
 var imageStream:URLStream=new URLStream;
 imageStream.load(curl.urlRequest);