QT QNetworkAccessManager跳转URL处理

connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(onFinished(QNetworkReply*)));

 

void MainClass::onFinished(QNetworkReply* reply)

{

   int statusCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();

QString strUrl = reply->attribute(QNetworkRequest::RedirectionTargetAttribute).toString();

 

   qDebug() << "FINISHED" << statusCode;

   switch (statusCode)

   {

      case 200:                               // OK

      {

         // process reply

         if (!isLoggedIn())

            storeAuthorization(reply);

         switch (state)

         {

            case stGetCalendars:

            {

               parseCalendarList(reply);

               break;

            }

            case stGetEvents:

            {

               parseEventList(reply);

               break;

            }

         }

         break;

      }

      case 302:                               // redirect (Location: [URL])

      {

         qDebug() << "redirected to" << locationOf(reply);

         prepare(locationOf(reply));

         manager->get(*lastRequest);

         break;

      }

      case 400:                               // bad request

      {

         QMessageBox::warning(this, "Error", "Network error (HTTP400/Bad Request)");

         break;

      }

      case 403:                               // permission denied

      {

         QMessageBox::warning(this, "Permission denied", "Username or password invalid");

         break;

      }

      default:

      {

         QByteArray replyData = reply->readAll();

         qDebug() << "Unknown response" << replyData;

         break;

      }

   }

   reply->deleteLater();

   // do anything afterwards?

   after();            // <-- next request via manager->get()

   qDebug() << "request done";

}