How can i get reading the message from client,Sorry My English
I was using this example http://wiki.qtcentre.org/index.php?title=Simple_Chat

Server.cpp
Qt Code: 
  1. connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
  2.     connect(tcpServer, SIGNAL(newConnection()), this, SLOT(sendFortune()));
  3.  
  4.     QHBoxLayout *buttonLayout = new QHBoxLayout;
  5.     buttonLayout->addStretch(1);
  6.     buttonLayout->addWidget(quitButton);
  7.     buttonLayout->addStretch(1);
  8.  
  9.  
  10.     QVBoxLayout *mainLayout = new QVBoxLayout;
  11.     mainLayout->addWidget(statusLabel);
  12.     mainLayout->addLayout(buttonLayout);
  13.     setLayout(mainLayout);
  14.  
  15.     setWindowTitle(tr("Fortune Server"));
  16. }
  17.  
  18. void Server::sendFortune()
  19. {
  20.      QTcpSocket *tcpSocket = tcpServer->nextPendingConnection();
  21.  
  22.         connections.append(tcpSocket);
  23. 	QBuffer* buffer = new QBuffer(this);
  24. 	buffer->open(QIODevice::ReadWrite);
  25. 	buffers.insert(tcpSocket, buffer);
  26.  
  28. 	out.setDevice(tcpSocket);
  29. 	QString tiedosto=haeTiedosto(kuvaIndex);
  30.        QFile file(tiedosto);
  31. 	file.open(QIODevice::ReadOnly);
  33. 	fstr.setDevice(&file);
  34.  
  35.  
  36.     file.seek(0);
  37. 	char* data = new char[65536];
  38. 	while(!file.atEnd()) 
  39. 	{
  40. 		int read = fstr.readRawData(data, 65536);
  41. 		int sent = out.writeRawData(data, read);
  42. 	}
  43.  
  44. 	delete[] data;
  45.  
  46. 	tcpSocket->waitForBytesWritten();
  47.  
  48.  
  49.  
  50.     connect(tcpSocket, SIGNAL(readyRead()),	SLOT(receiveMessage()));
  51.     connect(tcpSocket, SIGNAL(disconnected()), SLOT(removeConnection()));
  52.  
  53.  
  54. }
  55. void Server::removeConnection()
  56. {
  57.  
  58.     QTcpSocket* socket = static_cast<QTcpSocket*>(sender());
  59. 	QBuffer* buffer = buffers.take(socket);
  60. 	buffer->close();
  61. 	buffer->deleteLater();
  62. 	connections.removeAll(socket);
  63. 	socket->deleteLater();
  64.  
  65.  
  66.  
  67.  
  68. }
  69.  
  70. void Server::receiveMessage()
  71. {
  72.  
  73. 	QTcpSocket* socket = static_cast<QTcpSocket*>(sender());
  74. 	QBuffer* buffer = buffers.value(socket);
  75.  
  76. 	// missing some checks for returns values for the sake of simplicity
  77. 	qint64 bytes = buffer->write(socket->readAll());
  78. 	// go back as many bytes as we just wrote so that it can be read
  79. 	buffer->seek(buffer->pos() - bytes);
  80. 	// read only full lines, line by line
  81. 	while (buffer->canReadLine())
  82. 	{
  83. 		QByteArray line = buffer->readLine();
  84. 		foreach (QTcpSocket* tcpSocket, connections)
  85. 		{
  86.         int d=line.toInt();
  87.         QString data=data.setNum(d);
  88. 	    statusLabel->setText(data);
  89.      }
  90.  
  91.     }
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