flex文件下载
1flex端
<mx:Button label="下 载" click="download()"/>
//下载
public function download():void{
var str:String=this.uploadfiles.selectedIndex.toString();
if(str=="-1"){
Alert.show("请选中要下载的文件");
}else{
downloadfiles();
}
}
public function downloadfiles():void{
var loadid:String=this.uploadfiles.selectedItem.loadid;
if(loadid==null || loadid==""){
Alert.show("对不起,该文件还未上传");
}
var urlAddress:String=model.root+"/uploadFiles.do?method=download&loadid="+loadid;
//URLRequest可以捕获单个HTTP的所有信息
var url:URLRequest=new URLRequest(urlAddress);
var loadname:String=this.uploadfiles.selectedItem.loadname;
//download()方法提示用户提供文件的保存位置并开始从远程 URL 进行下载。
filedown.download(url,loadname);
}
protected override function createChildren():void{
super.createChildren();
filedown.addEventListener(Event.COMPLETE,onDownCompleted);
}
public function onDownCompleted(evt:Event):void{
this.resultlabel.visible=true;
var fileref:FileReference = evt.currentTarget as FileReference;
resultlabel.text = "文件名:" + uploadfiles.selectedItem.loadname+ "下载完毕!";
}
java后台(action)
/**
* 文件下载
*
* @param mapping
&nb
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