How can I POST data to a url using QNetworkAccessManager

Question

I have a webservice that I need to POST some data to using Qt. I figured that I can use a QByteArray when POSTing to the web service.

My question is, how can I forma

Answer 1

Updating alexisdm answer to Qt5:

// Setup the webservice url
QUrl serviceUrl = QUrl("http://your.url");
QByteArray postData;

QUrlQuery query;
query.addQueryItem("param1","string1");
query.addQueryItem("param2","string2");

postData = query.toString(QUrl::FullyEncoded).toUtf8();

// Call the webservice
QNetworkAccessManager *networkManager = new QNetworkAccessManager(this);
connect(networkManager, SIGNAL(finished(QNetworkReply*)),
        SLOT(onPostAnswer(QNetworkReply*)));

QNetworkRequest networkRequest(serviceUrl);
networkRequest.setHeader(QNetworkRequest::ContentTypeHeader,"application/x-www-form-urlencoded");

networkManager->post(networkRequest,postData);

Don't forget to include

QT += network

in .pro.