QNetworkaccessManager是异步上传的

最近在弄FTP功能，用到了QNetworkaccessManager类的put，

使用过程中把本地目录中的3个txt 上传到ftp上，

：

void WorkThread::DoWork()

{

        for(int i=0;i<txtFileInfoListT.size();i++)

        {

            QThread::msleep(5000);

            QString txtFileName = txtFileInfoListT.at(i).fileName();

            qDebug()<<"file txt:"<<txtFileName;

            m_ftp.put(localDir+"\"+txtFileName,ftpDir+"/"+txtFileName);

        }

}
结果执行后  的效果是 这个循环执行完后 才 开始上传到FTP
这与想要的结果明显不一样，
后来发现 QNetworkaccessManager是异步上传的模式，

// 上传文件

void FtpManager::put(const QString &fileName, const QString &path)

{

    QFile file(fileName);

    file.open(QIODevice::ReadWrite);

    QByteArray data = file.readAll();

    m_pUrl.setPath(path);

    qDebug()<<"path:"<<path;

    QEventLoop loop;

    QNetworkReply *pReply = m_manager.put((QNetworkRequest)m_pUrl, data);

    //connect(pReply, SIGNAL(uploadProgress(qint64, qint64)), this, SIGNAL(uploadProgress(qint64, qint64)));

    connect(pReply, SIGNAL(error(QNetworkReply::NetworkError)), this, SIGNAL(error(QNetworkReply::NetworkError)));

    connect(pReply,SIGNAL(finished()),this,SLOT(finished()));

    connect(pReply,SIGNAL(bytesWritten(qint64)),this,SLOT(onDataWrite(qint64)));

    connect(pReply,SIGNAL(finished()),&loop,SLOT(quit()),Qt::DirectConnection);

    loop.exec();

}
另上 QEventLoop loop;事件后再绑定connect(pReply,SIGNAL(finished()),&loop,SLOT(quit()),Qt::DirectConnection); 即可 达到效果