通过ActionScript上传文件后如何检索JSON结果

Question

我知道如何使用动作脚本上传文件

有关详细信息，请参见使用HTTP POST通过actionscript 3.0上传zip文件 。

代码在这里复制：

var urlRequest:URLRequest = new URLRequest(PUBLISH_ZIP_FILE_URL);
// set to method=POST
urlRequest.method = URLRequestMethod.POST;

var params:URLVariables = new URLVariables();

params['data[File][title]'] = 'Title1';
params['data[File][description]'] = 'desc';

// this is where we include those non file params and data
urlRequest.data = params;


// now we upload the file
// this is how we set the form field expected for the file upload
file.upload(urlRequest, "data[File][filename]");

负责接受文件上传的Web应用将返回一个JSON字符串，其中包含诸如文件大小，ID号等详细信息。

如何在我的动作脚本中访问此JSON结果字符串？

Answer 1

从FileReference docs中 ，您需要为您的uploadCompleteData事件的FileReference实例添加一个处理程序：

import flash.events.*;

// now we upload the file
// this is how we set the form field expected for the file upload
file.addEventListener(DataEvent.UPLOAD_COMPLETE_DATA, uploadCompleteDataHandler);
file.upload(urlRequest, "data[File][filename]");

private function uploadCompleteDataHandler(event:DataEvent):void  
{
     trace("uploadCompleteData data: " + event.data);
}