QHttp readAll() return empty QbyteArray

[chamoda]

Hi!

I'm a beginner to Network programming and I'm trying to write a simple console application which return html source from server.

this is the code

void Downloader::doDownload()
{
    QHttp *http = new QHttp(this);
 
    http->setHost("c-studios.host56.com");
    http->get("/index.html");
 
    connect(http, SIGNAL(stateChanged(int)), this, SLOT(stateChanged(int)));
    connect(http, SIGNAL(responseHeaderReceived(QHttpResponseHeader)), this, SLOT(responseHeaderReceived(QHttpResponseHeader)));
    connect(http, SIGNAL(requestFinished(int,bool)), this, SLOT(requestFinished(int,bool)));
    connect(http, SIGNAL(readyRead(QHttpResponseHeader)), this, SLOT(showHtml()));
 
 
}
 
// ....
 
void Downloader::responseHeaderReceived(const QHttpResponseHeader &resp)
{
    qDebug() << "Size: " << resp.contentLength(); //works fine. show correct length
    qDebug() << "Type: " << resp.contentType(); // works fine
    qDebug() << "Status: " << resp.statusCode(); // fine return 200
}
 
void Downloader::requestFinished(int id, bool error)
{
    if(error)
    {
        qDebug() << "Error!";
    }
    else
    {
        qDebug() << "Ok!";
    }
}
 
void Downloader::showHtml()
{
    QString html(http->readAll()); //this is the problem. QString is empty
    qDebug() << html;
}

void Downloader::doDownload()
{
    QHttp *http = new QHttp(this);

    http->setHost("c-studios.host56.com");
    http->get("/index.html");

    connect(http, SIGNAL(stateChanged(int)), this, SLOT(stateChanged(int)));
    connect(http, SIGNAL(responseHeaderReceived(QHttpResponseHeader)), this, SLOT(responseHeaderReceived(QHttpResponseHeader)));
    connect(http, SIGNAL(requestFinished(int,bool)), this, SLOT(requestFinished(int,bool)));
    connect(http, SIGNAL(readyRead(QHttpResponseHeader)), this, SLOT(showHtml()));


}

// ....

void Downloader::responseHeaderReceived(const QHttpResponseHeader &resp)
{
    qDebug() << "Size: " << resp.contentLength(); //works fine. show correct length
    qDebug() << "Type: " << resp.contentType(); // works fine
    qDebug() << "Status: " << resp.statusCode(); // fine return 200
}

void Downloader::requestFinished(int id, bool error)
{
    if(error)
    {
        qDebug() << "Error!";
    }
    else
    {
        qDebug() << "Ok!";
    }
}

void Downloader::showHtml()
{
    QString html(http->readAll()); //this is the problem. QString is empty
    qDebug() << html;
}

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when i call http->readAll() it's return empty byte array. I can't fugure out what is the problem. someone help please. thanks

[wysota]

I'm guessing there is no data yet ready, just the headers. You can read your data in requestFinished() if you want. Or better yet use QNetworkAccessManager instead of the deprecated QHttp.