Qt5---ftp上传功能（使用组合的办法实现功能，QNetworkAccessManager自动管理分片上传，用QLoggingCategory屏蔽SSL警告）

QNetworkAccessManager

git clone git://code.qt.io/qt/qtftp.git
git clone http://code.qt.io/qt/qtftp.git git clone https://code.qt.io/qt/qtftp.git[/code]   下面的ftp上传功实现了在有密码和无密码的情况下上传：

#include <QtCore>
#include <QtNetwork>
#include <QDebug>

class Uploader: public QObject
{
Q_OBJECT
public:
Uploader(QObject *p = 0): QObject(p){  }

void start(const QString &file){
// no passwd
// QUrl url("ftp://172.20.5.167/ftp.txt");
QUrl url;
url.setScheme("ftp");
url.setHost("172.20.5.167");
// 这里是设置远端主机上传时的文件名，不设置则名称为本地端上传名称
url.setPath("/ftp.txt");
url.setUserName("root");
url.setPort(21);

// need passwd
/*
QUrl url("ftp://172.20.5.167/ftp.txt");
url.setScheme("ftp");
url.setUserName("root");
url.setPort(21);
*/

data = new QFile(file, this);
if (data->open(QIODevice::ReadOnly)) {
reply = nam.put(QNetworkRequest(url), data);
connect(reply, SIGNAL(uploadProgress(qint64, qint64)), SLOT(uploadProgress(qint64, qint64)));
connect(reply, SIGNAL(finished()), SLOT(uploadDone()));
}
else
qDebug() << "Oops";
}

public slots:
void uploadProgress(qint64 bytesSent, qint64 bytesTotal)    {
qDebug() << "Uploaded" << bytesSent << "of" << bytesTotal;
}

void uploadDone()     {
qDebug() << "Finished" << reply->error();
data->deleteLater();
reply->deleteLater();
}

private:
QNetworkAccessManager nam;
QFile *data;
QNetworkReply *reply;
};

int main(int argc, char **argv)
{
QCoreApplication app(argc, argv);
// 去除ftp上传时network.ssl警告
QLoggingCategory::setFilterRules("qt.network.ssl.warning=false");
Uploader u;
u.start(QString("C:/Users/yicm/Qt/test.txt"));
return app.exec();
}
// 编译时不要漏掉下面这句
#include "main.moc"

  上面程序主要注意的地方是本地端上传文件和主机端文件，理解QUrl（无密码为ftp://root@172.20.5.167.com:21）：



保证ftp地址的每一个部分都设置到位。
 http://blog.csdn.net/freeape/article/details/52802163