QTcpSocket Help

[minotaurds]

Hi,
i am trying to build a Console Socket Program with the following code :

#include <QtCore/QCoreApplication>
#include "client.h"
#include <QTcpServer>
#include <QTcpSocket>
#include <QDebug>
 
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    Client client;
    return a.exec();
}
Client::~Client()
{
 
}
 
Client::Client()
 
{
    QTcpSocket *client = new QTcpSocket(this);
 
    Establish(client);
}
 
void Client::Establish(QTcpSocket *client)
{
    quint16 port=18999;
    client->connectToHost(QHostAddress::LocalHost , port, QIODevice::ReadWrite);
 
    if (!client->waitForConnected()){
 
        for(int j=0;j<10;j++)
        qDebug("Error");
 
        exit(11);
}
    getData(client);
}
 
void Client::getData(QTcpSocket *client)
{
 
    client->waitForReadyRead();
    QString line;
    if (client->canReadLine()) {
    line = client->readLine();
   }
    else
        qDebug("Error");
 
    qDebug()<<line;
    if(!client->waitForConnected())
            stop(client);
    else
        Establish(client);
  }
void Client::stop(QTcpSocket *client)
{
    client->flush();
    client->waitForBytesWritten();
 
    client->close();
    client->disconnectFromHost();
    client->waitForDisconnected();
 
}

#include <QtCore/QCoreApplication>
#include "client.h"
#include <QTcpServer>
#include <QTcpSocket>
#include <QDebug>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    Client client;
    return a.exec();
}
Client::~Client()
{

}

Client::Client()

{
    QTcpSocket *client = new QTcpSocket(this);

    Establish(client);
}

void Client::Establish(QTcpSocket *client)
{
    quint16 port=18999;
    client->connectToHost(QHostAddress::LocalHost , port, QIODevice::ReadWrite);

    if (!client->waitForConnected()){

        for(int j=0;j<10;j++)
        qDebug("Error");

        exit(11);
}
    getData(client);
}

void Client::getData(QTcpSocket *client)
{

    client->waitForReadyRead();
    QString line;
    if (client->canReadLine()) {
    line = client->readLine();
   }
    else
        qDebug("Error");

    qDebug()<<line;
    if(!client->waitForConnected())
            stop(client);
    else
        Establish(client);
  }
void Client::stop(QTcpSocket *client)
{
    client->flush();
    client->waitForBytesWritten();

    client->close();
    client->disconnectFromHost();
    client->waitForDisconnected();

}

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Server:

#include <QtCore/QCoreApplication>
#include "server.h"
#include <QTcpServer>
#include <QTcpSocket>
 
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    MultiClientServer serve;
    return a.exec();
}
 
MultiClientServer::MultiClientServer()
{
    start();
    connect(this, SIGNAL(newConnection()), this, SLOT(handleNewConnection()));
 
}
 
void MultiClientServer::handleNewConnection()
{   qDebug("Somethin");
    client = nextPendingConnection();
    connect(client, SIGNAL(disconnected()), this, SLOT(clientDisconnected()));
 
    sendHello(client);
}
 
void MultiClientServer::clientDisconnected()
{
    client->deleteLater();
}
 
void MultiClientServer::sendHello(QTcpSocket *client)
{
    if (!client)
        return;
 
    client->write("1");
 
}
 
MultiClientServer::~MultiClientServer()
{
    stop();
}
//The stop function closes the connections. The server will not listen anymore. Any client trying to connect will time out. Use the QTcpServer::close() function to stop listening.
 
void MultiClientServer::stop()
{
    close();
}
 
//The start function makes the server listen on a certain hostname and a certain port. In this case the hostname and port are not variable, the server will listen on localhost on the port 1234. You can of course create a settings dialog where you can change these settings.
 
 
void MultiClientServer::start()
{
    qDebug("Server Started");
    listen(QHostAddress::LocalHost, 18999);
}

#include <QtCore/QCoreApplication>
#include "server.h"
#include <QTcpServer>
#include <QTcpSocket>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    MultiClientServer serve;
    return a.exec();
}

MultiClientServer::MultiClientServer()
{
    start();
    connect(this, SIGNAL(newConnection()), this, SLOT(handleNewConnection()));

}

void MultiClientServer::handleNewConnection()
{   qDebug("Somethin");
    client = nextPendingConnection();
    connect(client, SIGNAL(disconnected()), this, SLOT(clientDisconnected()));

    sendHello(client);
}

void MultiClientServer::clientDisconnected()
{
    client->deleteLater();
}

void MultiClientServer::sendHello(QTcpSocket *client)
{
    if (!client)
        return;

    client->write("1");

}

MultiClientServer::~MultiClientServer()
{
    stop();
}
//The stop function closes the connections. The server will not listen anymore. Any client trying to connect will time out. Use the QTcpServer::close() function to stop listening.

void MultiClientServer::stop()
{
    close();
}

//The start function makes the server listen on a certain hostname and a certain port. In this case the hostname and port are not variable, the server will listen on localhost on the port 1234. You can of course create a settings dialog where you can change these settings.


void MultiClientServer::start()
{
    qDebug("Server Started");
    listen(QHostAddress::LocalHost, 18999);
}

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Someone Please Help me !

• I want to transfer Integer Values but the write only allows QString/Character!!
  
• Secondly I have some error cause the client only recieves data once.
  
• By changing the localHost with the IP address should send the data to that IP address right?
  
• Suggestions to convert this into GUI

OKAY I FOUND OUT THAT EVERY TIME MY SERVER SENDS THE MESSAGE IT DISCONNECTS WITH THE CLIENT!