Error uploading file on server

developerNancy

I am new in Qt and try to select file and upload that file to server. Here is my code

  QString usersfilename = QFileDialog::getOpenFileName(this,
                                         "Select source file",
                                         ".",
                                         "Text files (*.csv);; All files (*.*)");

    this->ui->uploadEdit->setText(usersfilename);


   QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);
    QHttpPart imagePart;
    //imagePart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("text/plain"));
    imagePart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"file\"; filename=\"version.txt\""));/* version.tkt is the name on my Disk of the file that I want to upload */

    QHttpPart textPart;
    textPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"name\""));
    textPart.setBody("filename");

   // QString apkLocation = apktextEdit->text();
    QFile *file = new QFile(usersfilename);
    file->open(QIODevice::ReadOnly);
    imagePart.setBodyDevice(file);
    file->setParent(multiPart); 

    multiPart->append(textPart);
    multiPart->append(imagePart);

    QUrl url("url");
    QNetworkRequest request(url);

    QNetworkAccessManager *networkManager= new QNetworkAccessManager;
    QNetworkReply * reply = networkManager->post(request, multiPart);

Can anyone tell me how we select file from directory and upload it to server.

Thanks in advance.

developerNancy

Done Thanks for the help

jsulm

@developerNancy What error do you get?

developerNancy

@jsulm There is no error , nothing display...but I have check on server there is no file.

jsulm

@developerNancy In the code you posted there is NO error handling at all!
You should always check for errors: return values or error signals like http://doc.qt.io/qt-5/qnetworkreply.html#error-1

developerNancy

@jsulm I am using it shows file is uploaded but on server nothing

   QErrorMessage msg;
    QString usersfilename = QFileDialog::getOpenFileName();
    QDir dir = QFileInfo(usersfilename).absoluteDir();
    qDebug() << dir;
    qDebug() << usersfilename;
    this->ui->uploadEdit->setText(usersfilename);
    QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);
    QHttpPart imagePart;
    imagePart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("text/plain"));
    imagePart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data;filename=usersfilename"));
    QHttpPart textPart;
    textPart.setBody("filename");/*

    QFile *file = new QFile(usersfilename);
    file->open(QIODevice::ReadOnly);
    imagePart.setBodyDevice(file);
    file->setParent(multiPart); /


    multiPart->append(textPart);
    multiPart->append(imagePart);
    QUrl url("my server url");
    QNetworkRequest request(url);
    qDebug() <<url;

    QNetworkAccessManager *networkManager= new QNetworkAccessManager;
    QNetworkReply * reply = networkManager->post(request, multiPart);
    multiPart->setParent(reply); // delete the multiPart with the reply

   qDebug() <<reply;
     if (reply->error() == QNetworkReply::NoError)
          {

              QString strReply = (QString)reply->readAll();

              //parse json
              qDebug() << "Response:" << strReply;
              QJsonDocument jsonResponse = QJsonDocument::fromJson(strReply.toUtf8());
              QJsonObject jsonObj = jsonResponse.object();
              QJsonObject result=jsonObj["result"].toObject();

              if(jsonObj["error"].toBool()==false)
              {
                  QJsonObject data=result["data"].toObject();
              
                QMessageBox msgBox;
                  msgBox.setText("file is uploaded");
                  msgBox.exec();
              }
              else
              {
                  QErrorMessage msg;
                  msg.showMessage("Error during upload proces");
                  msg.exec();
              }
              delete reply;

          }





}

developerNancy

Done Thanks for the help