class RequestListener : public QObject  {
    Q_OBJECT

public:
    RequestListener();
    void listen();

private:
    QTcpServer *server;

private slots:
    void recv();
};

RequestListener::RequestListener()  {
    server = new QTcpServer(this);
    server->listen();
    printf("%d\n", server->serverPort());
    connect(server, SIGNAL(newConnection()), this, SLOT(recv()));
}

void RequestListener::recv()    {
    printf("Here\n\n\n\n\n\n");
}