在Qt中,我需要使用post方法将一个sqlite文件(二进制文件)上传到网站。所以我打开文件并尝试将其内容读入QByteArray中,然后使用QNetworkRequest的帮助将其发送到服务器。我可以处理请求,因为文件已经被发送到了服务器,但是文件却是空的。我的代码有什么问题吗?(我知道文件存在)
QByteArray data;
QFile file("database.sqlite");
if (!file.open(QIODevice::ReadWrite))
return;
QDataStream in(&file);
in.setVersion(QDataStream::Qt_4_6);
in >> data ;
QString boundary;
QByteArray dataToSend; // byte array to be sent in POST
boundary="-----------------------------7d935033608e2";
QString body = "\r\n--" + boundary + "\r\n";
body += "Content-Disposition: form-data; name=\"database\"; filename=\"database.sqlite\"\r\n";
body += "Content-Type: application/octet-stream\r\n\r\n";
body += data;
body += "\r\n--" + boundary + "--\r\n";
dataToSend = body.toAscii();
QNetworkAccessManager *networkAccessManager = new QNetworkAccessManager(this);
QNetworkRequest request(QUrl("http://www.mydomain.com/upload.aspx"));
request.setRawHeader("Content-Type","multipart/form-data; boundary=-----------------------------7d935033608e2");
request.setHeader(QNetworkRequest::ContentLengthHeader,dataToSend.size());
connect(networkAccessManager, SIGNAL(finished(QNetworkReply*)),this, SLOT(sendReportToServerReply(QNetworkReply*)));
QNetworkReply *reply = networkAccessManager->post(request,dataToSend); // perform POST request