QT 서버 및 클라이언트 구축

서버 구축:
const QString IP = “127.0.0.1”; QTcpServer *tcp_server; QTcpSocket *cfd;
tcp_server = new QTcpServer(this); if(! tcp_server->listen(QHostAddress::LocalHost, SERV_PORT)) { qDebug()connect(tcp_server, SIGNAL(newConnection()), this, SLOT(newconnect()));//클라이언트 링크 대기
QDataStream in(cfd);

in.setVersion(QDataStream::Qt_5_0);                 /* */
if(blocksize == 0)
{
    if(cfd->bytesAvailable() < (int)sizeof(quint16))
    {
        return;
    }
    in>>blocksize;
}qDebug()<bytesAvailable() < blocksize)
{
    return;
}qDebug()<>message;                                        /* message*/


cfd->read((char*)&message,cfd->bytesAvailable());

클라이언트에 서버 전송

        message_recv.cmd = 101;
        QByteArray block;
        QDataStream out(&block, QIODevice::WriteOnly);
        out.setVersion(QDataStream::Qt_4_0);
        out<seek(0);
        out<write(block, block.length());

클라이언트와 서버 링크

tcpsocket = new QTcpSocket(this);
tcpsocket->abort();
tcpsocket->connectToHost(IP, SERV_PORT);

서버 QByteArray block에 보내기;QDataStream out(&block, QIODevice::WriteOnly); out.setVersion(QDataStream::Qt_4_0); out< out< out.device()->seek(0); out< tcpsocket->write(block, block.length());

connect(tcpsocket, SIGNAL(readyRead()), this, SLOT(read_server()));     /* */

서버의 정보 수신 QDataStream in(tcpsocket);

in.setVersion(QDataStream::Qt_4_6);                 // 
if(blocksize == 0)
{
    if(tcpsocket->bytesAvailable() < (int)sizeof(quint16))
    {
        return;
    }
    in>>blocksize;
}
if(tcpsocket->bytesAvailable() < blocksize)
{
    return;
}
in>>message;                                        // message

QT 서버 및 클라이언트 구축

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