Question

我尝试使用QHttpMultiPart将某些文件上传到服务器。以下版本文件只是一个示例。出于某种原因，Qt会自动为文件添加边界。但是，我真正上传的是.tar.gz文件，如果添加了这样的边界，它们将被视为已损坏。

    int main(int argc, char *argv[])
    {

        QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
        QGuiApplication app(argc, argv);

        QNetworkAccessManager *netManager = new QNetworkAccessManager();
        HTTPFirmwareUpgrader upgrader(netManager,"http://mytest.com");
        upgrader.upgradeCIU();

        return app.exec();
    }

    void HTTPFirmwareUpgrader::upgradeCIU()
    {
        QString filename = "version";
        QString filePath = QString("C:/Users/User/Desktop/HTTP/%1").arg(filename);
        qDebug() << uploadFirmware(filename, filePath);
    }

    bool HTTPFirmwareUpgrader::uploadFirmware(const QString &filename, const QString &filePath)
    {
        QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);

        QHttpPart myPart;
        QFile *file = new QFile(filePath);
        if(!file->exists())
            qWarning() << "File DOES NOT exists";

        file->open(QIODevice::ReadOnly);
        myPart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("form-data"));
        myPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"version\"; filename=\"version\""));
        myPart.setBodyDevice(file);
        file->setParent(multiPart);

        multiPart->append(ciu);

        QByteArray resp = this->post(createUploadRequest(QString("filename=%1").arg(filename)),
                                     multiPart, file);
        qDebug() << "Upload Filrmware " << resp;

        return resp != "";
    }

    QByteArray HTTPFirmwareUpgrader::post(QUrl url, QHttpMultiPart *multiPart, QFile *file)
    {
        QNetworkRequest request;
        QEventLoop loop;
        request.setUrl(url);

        request.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("multipart/form-data"));
        QNetworkReply *reply = m_manager->post(request, multiPart);
        connect(reply, SIGNAL(finished()), &loop, SLOT(quit()));
        loop.exec();
        multiPart->setParent(reply);
        reply->deleteLater();

        return reply->readAll();
}

这是原版＆＃34;版本＆＃34;文件： enter image description here

这是＆＃34;版本＆＃34;转移的文件： enter image description here

如果我没有为请求设置标头，则传输文件的大小将为0.

有谁知道我该怎么办？

Answer 1

问题解决了!!! 事实证明我使用错误的方式上传文件。我需要使用的是QIODevice而不是QMultipart。

QHttpMultiPart上传文件边界问题

1 个答案: