我想知道最近在从外部应用程序将 blob 上传到 appengine 方面是否有任何变化？仅在 3 个月前还可以正常工作的东西现在在做 http 帖子上传 blob 时挂起。
之前运行良好的代码（见下文）包括从 AppEngine 获取拉取队列（使用 REST API），对接收到的任务执行一些操作，然后将结果作为 Blob 上传回 AppEngine。将 blob 上传到的 url 由 appengine 使用 blobstoreService.createUploadUrl("/upload"); 创建。
形式为：
http://myapp.appspot.com/_ah/upload/AMmfu6aAHnkuS4ngyRJDn7urFFZeBxb_-3P-r7RY9udMvRjLWkEZNJMgUX1DFczNVi-NhIxcFat2AEPXs2IRJ0AOmznSMgcrCKmL7mGAmS7nqtr-UyYFkglD88BwCfzIui9M2yez7DSQ/ALBNUaYAAAAAUGRlEwpeGEc5ozp8Z8sDO33qgCi2AiIE/
我查看了 AppEngine 上的日志，似乎负责 /upload 的 servlet 没有被触发。
老实说，我在这个阶段没有想法，任何帮助将不胜感激！:-)
干杯，
基利安
public boolean uploadAsBlob(String dataToWrite, String uploadURL) {
try {
BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(tempFileLocation));
bufferedWriter.write(dataToWrite);
bufferedWriter.newLine();
bufferedWriter.close();
MultipartEntity entity = new MultipartEntity();
entity.addPart(blobFileName, new FileBody(new File(tempFileLocation)));
HttpPost method = new HttpPost(uploadURL);
method.setEntity(entity);
final HttpParams httpParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParams, 10000);
DefaultHttpClient httpclient = new DefaultHttpClient(httpParams);
//It hangs at the following line!
HttpResponse response = httpclient.execute(method);
if (response.getStatusLine().getStatusCode() == 200) {
logger.info("Uploaded blob to url: " + uploadURL);
return true;
} else {
logger.warning("Couldn't upload blob to url: " + uploadURL);
}
} catch (Exception e) {
logger.warning("Exception " + e.getMessage() + " occured while uploading blob to url:" + uploadURL);
logger.warning("Couldn't upload blob to url: " + uploadURL);
}
return false;
}