var fileRef:FileReference = new FileReference();
		var request:URLRequest = new URLRequest(serviceUrl);

		request.method = URLRequestMethod.POST;
		var encoder : Base64Encoder = new Base64Encoder();
		encoder.encode(userName + ":" + password);
		request.requestHeaders.push(new URLRequestHeader("Authorization", "Basic " + encoder.toString())); // ** 增加认证信息

		fileRef.addEventListener(Event.OPEN, onFileDownloadBegin);
		fileRef.addEventListener(Event.COMPLETE, onFileDownloadComplete);
		fileRef.addEventListener(IOErrorEvent.IO_ERROR, onFileDownloadError);
		fileRef.addEventListener(Event.CANCEL, onFileDownLoadCancel);
		fileRef.download(request, getExportFileName(serviceUrl));

// 下载文件
	protected function downloadTemplateFile():void {
		var fileRef:FileReference = new FileReference();
		var urlReq:URLRequest = new URLRequest(_pathTemplateFile);
		fileRef.addEventListener(Event.OPEN,onDownloadBegin);
		fileRef.addEventListener(Event.COMPLETE, onDownloadComplete);
		fileRef.addEventListener(Event.CANCEL, onDownloadCancel);
		fileRef.addEventListener(IOErrorEvent.IO_ERROR, onDownloadError);
		fileRef.download(urlReq);
	}

	// 模板文件下载开始时响应.
	protected function onDownloadBegin(e:Event):void {
		appendTextToOutPut(RM.getString(BUNDLE_ASMT_MGT, "template.download.begin"));
	}

	// 当下载结束后响应. */
	protected function onDownloadComplete(e:Event):void {
		var file:FileReference = e.target as FileReference;
		appendTextToOutPut(RM.getString(BUNDLE_ASMT_MGT, "template.download.success", [file.name, FileUtils.formatFileSize(file.size)]));
		log.info("模板文件下载结束: " + file.name + "-" + file.size);
	}

	// 当下载取消时响应. */
	protected function onDownloadCancel(e:Event):void {
		appendTextToOutPut(RM.getString(BUNDLE_ASMT_MGT, "controller.download.canceled"));
	}

	// 当下载出现错误时响应. */
	protected function onDownloadError(e:IOError):void {
		appendTextToOutPut(RM.getString(BUNDLE_ASMT_MGT, "template.download.error", [e.message]));
		log.error("下载出错" + e.message);
	}