基于QT的TCP socket通信程序-猜字游戏的server(服务)端程序

#include <qsocket.h>
#include <qserversocket.h>
#include <qapplication.h>
#include <qvbox.h>
#include <qtextview.h>
#include <qlabel.h>
#include <qpushbutton.h>
#include <qtextstream.h>
#include <stdlib.h>
#include <string.h>
/*
服务器与客户端建立连接后，服务器创建一个ClientSocket来处理请求，ClientSocket继承QSocket
*/
class ClientSocket : public QSocket
{
Q_OBJECT
public:
ClientSocket( int sock, QObject *parent=0, const char *name=0 ) :
QSocket( parent, name )
{
line = 1;
connect( this, SIGNAL(readyRead()), SLOT(readClient()) );
connect( this, SIGNAL(connectionClosed()), SLOT(connectionClosed()) ); setSocket( sock );
}
~ClientSocket()
{
}
private slots:
void readClient()
{
while ( canReadLine() )
{
QTextStream os( this);
randomNUM = random() % 10;
again:if(line < 6)
{
clientNumber = atoi(readLine());
if(clientNumber==randomNUM)
os<<line<<": "<<"Good,you are right.\n";
else
os<<line<<": "<<"sorry,the right number is"<<"
"<<randomNUM<<"\n";
line++;
}
else{
os<<line<<": "<<"The time is out.\n";
line=1;
goto again;
}
}
}
void connectionClosed()
{
delete this;
}
private:
int line;
int randomNUM;
int clientNumber;
};
/*
SimpleServer类用来处理服务器新的连接，对于每一个客户端的连接，它都创建一个新的ClientSocket，SimpleServer用来处理与客户端的联系
*/
class SimpleServer : public QServerSocket
{
Q_OBJECT
public:
SimpleServer( QObject* parent=0 ) :
QServerSocket( 5000, 1, parent )
{
if ( !ok() ) {
qWarning("Failed to bind to port 5000");
exit(1);
}
}
~SimpleServer()
{
}
void newConnection( int socket )
{
(void)new ClientSocket( socket, this );
emit newConnect();
}
signals:
void newConnect();
};
/*
ServerInfo 类为服务器提供一个GUI界面
*/
class ServerInfo : public QVBox
{
Q_OBJECT
public:
ServerInfo()
{
SimpleServer *server = new SimpleServer( this );
QString itext = QString(
"made by DBJ.\n"
"Connect with the client now."
);
QLabel *lb = new QLabel( itext, this );
lb->setAlignment( AlignHCenter );
infoText = new QTextView( this );
QPushButton *quit = new QPushButton( "Quit" , this );
connect( server, SIGNAL(newConnect()), SLOT(newConnect()) ); connect( quit, SIGNAL(clicked()), qApp, SLOT(quit()) );
}
~ServerInfo()
{
}
private slots:
void newConnect()
{
infoText->append( "New connection\n" ); }
private:
QTextView *infoText;
};
int main( int argc, char** argv )
{
QApplication app( argc, argv );
ServerInfo info;
app.setMainWidget( &info );
info.show();
return app.exec();
}
#include "server.moc"。