QT网络请求

HttpHelper::HttpHelper(QObject *parent) :

    QObject(parent)

{

    QNetworkRequest qNetworkRequest(QUrl("http://119.29.29.29/d"));

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

    QNetworkAccessManager * networkAccessManager = new QNetworkAccessManager();

    QString paras = "dn=www.baidu.com";

    QNetworkReply * qNetworkReply =  networkAccessManager->post(qNetworkRequest, paras.toUtf8());

    connect(qNetworkReply, SIGNAL(finished()), this, SLOT(DealFinished()));

}

void HttpHelper::DealFinished()

{

    QNetworkReply *reply = static_cast<QNetworkReply*>(sender());

    if(reply->error() != QNetworkReply::NoError) {

        reply->deleteLater();

        return;

    }

    QString res = QString::fromUtf8(reply->readAll());

    qDebug()<<res;

}