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I have used the code below to download a file using http: No errors.

But the file is not get downloaded::

  QUrl url = QUrl::fromUserInput(strUrl);
      QFileInfo fileInfo(url.path());
      QString fileName=fileInfo.fileName();
      if (QFile::exists(fileName)) {
      QMessageBox::information(this, tr("HTTP"),
      tr("There already exists a file called %1 in "
      "the current directory.")
      file = new QFile(fileName);
      if (!file->open(QIODevice::WriteOnly)) {
      QMessageBox::information(this, tr("HTTP"),
      tr("Unable to save the file %1: %2.")
      delete file;
      file = 0;
      QHttp http;
    QEventLoop loop;
    QFile file;
    QObject::connect(&http, SIGNAL(done(bool)), &loop, SLOT(quit()));
    http.setHost(, url.port(80));
    http.get(url.toEncoded(QUrl::RemoveScheme | QUrl::RemoveAuthority), 
Posted 8-Mar-11 0:48am

1 solution

Rate this: bad
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Solution 1

You're not checking the error returns on the APIs connect and get (among others). Check what the error code is, and then post here again when you have that information.
Gokulnath007 8-Mar-11 7:58am
Error code is 0 for both the statements.
Hans Dietrich 8-Mar-11 8:10am
Is 0 a success code or a failure code? In any case, look at the Qt documentation and check why the API could fail.

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