QWebView下载文件，QUrl中解析文件名

参考网址：

http://blog.csdn.net/cdnight/article/details/23658715

http://www.tuicool.com/articles/AzeaUz

http://m.blog.csdn.net/blog/carecool/17881039

自己的代码：

ui->webView->page()->setForwardUnsupportedContent(true);

connect( ui->webView->page(),SIGNAL(unsupportedContent(QNetworkReply*)),

             this,SLOT(unsupportedContent(QNetworkReply*)) );

void MainWindow::unsupportedContent(QNetworkReply *reply)

{

    //save to a dir

    QString strDesktop = QStandardPaths::writableLocation(QStandardPaths::DesktopLocation);

    QString strDir = QFileDialog::getExistingDirectory(this, "另存为",

                                                    strDesktop,

                                                    QFileDialog::ShowDirsOnly

                                                    | QFileDialog::DontResolveSymlinks);

    if(strDir=="")

    {

        return;

    }

    QString fileName;

    fileName.clear();

　　//url转码

    QUrl copy(reply->url());

    copy.setQuery(copy.query(QUrl::FullyDecoded), QUrl::TolerantMode);

    qDebug()<<copy.toString();

    QStringList urlList =  copy.toString().split('&');

    foreach (QString str, urlList)

    {

        if(str.contains("downloadName",Qt::CaseSensitive))

        {

            QStringList downList = str.split('=');

            fileName = downList.at(1);

            m_pFile = new QFile(strDir + "\" + fileName);

            m_pFile->open(QIODevice::WriteOnly|QIODevice::Truncate);

        }

    }

    QNetworkRequest request;

    request.setUrl(reply->url());

    m_pManager = new QNetworkAccessManager(this);

    m_pReply = m_pManager->get(request);

    connect(m_pManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(replyFinished(QNetworkReply*)));//下载结束

    connect(m_pReply, SIGNAL(downloadProgress(qint64,qint64)), this, SLOT( onDownloadProgress(qint64 ,qint64 )));//更新进度条

    connect(m_pReply, SIGNAL(readyRead()), this, SLOT(on_readyRead()));//收到数据就往文件里写
}

void replyFinished(QNetworkReply* _reply)

{

    //无错误返回

    if(_reply->error() == QNetworkReply::NoError)

    {
　　　　//关闭文件

    }

    else

    {

      //处理错误

    }
}

void on_readyRead()

{

    m_pFile->write(m_pReply->readAll());//向文件写入数据

}

 m_pReply->abort();//取消下载