server.cpp

基于linux平台

#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 <qstring.h>
#include <stdlib.h>
#include <qlineedit.h>
   
    //QString str; 
    QPushButton *send;
    QTextView *infoText;  
    QLineEdit *inputText;
    //char information[100];
class ClientSocket:public QSocket
{
    Q_OBJECT
public:
     ClientSocket( int sock,QObject *parent=0, const char *name=0) :
     QSocket(parent,name)
   {
    line=0;
    connect(this,SIGNAL(readyRead()),SLOT(readClient()) );
    connect(this,SIGNAL(connectionClosed()),SLOT(connectionClosed()) );
    connect(send,SIGNAL(clicked()),this, SLOT(senddata()) );
    setSocket(sock);
    }
    ~ClientSocket()
    {
    }

public slots:
    void readClient()
    {
    while(canReadLine() )
       {
      /*  QTextStream os( this );
        str = readLine();
        os << line << ":" << str;
        line++;*/
        infoText->append(readLine());        
        }
     //strcpy(information, (const char*)str);
     //infoText->append((const char*)str);
     //fprintf(stderr,"z:%s",information);
     }
     void connectionClosed()
    {
     delete this;
    }   
 
    void senddata()
   {
     QTextStream os(this);
     os << inputText->text() << "\n";
     inputText->setText("");
    }

private:
     int line;
     
};

class SimpleServer :public QServerSocket
{
   Q_OBJECT
 public:
   SimpleServer(QObject * parent=0):
    QServerSocket(4242,1,parent)
  {
    if( !ok() )
    {
    qWarning("Failed to bind port 4242");
    exit(1);
    }
  }
  ~SimpleServer()
  {
  }
 void newConnection(int socket)
  {
  (void)new ClientSocket(socket,this);
   emit newConnect();
  }
 signals:
   void newConnect();
};

class ServerInfo:public QVBox
{
  Q_OBJECT
public:
  ServerInfo()
   {
     QString itext = QString(
     "This is a small server example.\n"
     "Connect with the client now."
     );
    QLabel *lb = new QLabel (itext,this);
    lb->setAlignment(AlignHCenter);
    infoText = new QTextView(this);
    inputText = new QLineEdit(this);
    send = new QPushButton("Send",this);
    QPushButton *quit = new QPushButton("Quit",this);
    SimpleServer *server = new SimpleServer(this);

    connect(server,SIGNAL(newConnect()),SLOT(newConnect()));
    connect(quit, SIGNAL(clicked()),qApp,SLOT(quit()) );
    
         }
  ~ServerInfo()
    {
    }
private slots:
    void newConnect()
    {
     infoText->append("New connection\n");
        } 
  /* public:
     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"