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  QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);
  QHttpPart zipPart;
  zipPart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("application/octet-stream"));
  zipPart.setHeader(QNetworkRequest::ContentDispositionHeader,
                        QVariant("form-data; name=\"file\";  filename=\"test.zip\""));
  QFile *file = new QFile("C:\\Temp\\test.zip");
  file->open(QIODevice::ReadOnly);
  zipPart.setBodyDevice(file);
  file->setParent(multiPart);
  multiPart->append(zipPart);

  QUrl url("http://localhost:8080/import");
  QNetworkRequest request(url);
  QNetworkAccessManager * manager = new QNetworkAccessManager();
  ....
  QNetworkReply *reply = manager->post(request, multiPart);
  ...

@RestController
public class ImportGateway
{
	@ResponseBody
	@RequestMapping(method = RequestMethod.POST)
	public String foo(@RequestParam MultipartFile file)
	{
		return file.getOriginalFilename();
	}
}

  public String foo(
                   @RequestParam String test,
                   @RequestParam MultipartFile file)