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我正在尝试使用 POST 方法使用 Qt 的 QNetworkAccessManager 类将图像上传到 apache 服务器。我不明白的是，如何为图像设置适当的 QNetworkRequest::ContentTypeHeader 和 QNetworkRequest::ContentLengthHeader？如果 ContentTypeHeader 是“multipart/form-data”，边界应该设置为什么？

示例代码：

    data = new QFile("/home/darshan/aindra/1.png", this);
    if (data->open(QIODevice::ReadOnly))
    {
        manager = new QNetworkAccessManager();
        req.setUrl(QUrl(upload_url));
        //space for req.setHeader() - contenttypeheader
        //space for req.setHeader() - contentlengthheader
        //reply = manager->post(req, QByteArray);
        connect(manager, SIGNAL(finished(QNetworkReply*)),this, SLOT(requestFinished(QNetworkReply*)));
        connect(reply, SIGNAL(uploadProgress(qint64, qint64)), SLOT(uploadProgress(qint64, qint64)));
    }
    else
    {
        qDebug() << "Could not open file to FTP";
    }
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1 回答 1

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Since Qt 4.8, you can use QHttpMultipart to upload files with QNetworkAccessManager.

http://doc.qt.io/qt-4.8/qhttpmultipart.html

于 2013-08-04T18:02:36.283 回答