我的TCP Socket测试用例(QT环境)

tsuibin

main.cpp

1. #include <QApplication>
   
2. #include "dialog.h"
   
3. 
   
4. int main(int argc, char *argv[])
   
5. {
   
6.         QApplication app(argc, argv);
   
7.         Dialog d;
   
8.         d.show();
   
9.         return app.exec();
   
10. }
    

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dialog.h

1. 
   
2. #ifndef DIALOG_H
   
3. #define DIALOG_H
   
4. 
   
5. #include <QTcpSocket>
   
6. #include <QDialog>
   
7. #include "ui_dialog.h"
   
8. 
   
9. class Dialog: public QDialog, public Ui_Dialog
   
10. {
    
11.         Q_OBJECT
    
12.         public:
    
13.                 Dialog(QWidget *parent = 0);
    
14. 
    
15.         private slots:
    
16.                 void sendMsg();
    
17.                 void recvMsg();
    
18.                 void error();
    
19. 
    
20.         private:
    
21.                 QTcpSocket *tcpSocket;
    
22.                 QString msgBuffer;
    
23. };
    
24. 
    
25. #endif
    
26. 
    

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dialog.cpp

1. 
   
2. #include <QHostAddress>
   
3. #include <QMessageBox>
   
4. #include <QTextCodec>
   
5. #include "dialog.h"
   
6. 
   
7. Dialog::Dialog(QWidget *parent) : QDialog(parent)
   
8. {
   
9.         setupUi(this);
   
10.         tcpSocket = new QTcpSocket(this);
    
11. 
    
12.         connect(pushButton, SIGNAL(clicked()), this, SLOT(sendMsg()));
    
13.         connect(tcpSocket, SIGNAL(readyRead()), this, SLOT(recvMsg()));
    
14.         connect(tcpSocket, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(error()));
    
15. 
    
16.         //tcpSocket->connectToHost(QHostAddress::LocalHost, 8000);
    
17.         tcpSocket->connectToHost(QHostAddress("192.168.1.160"), 8000);
    
18. }
    
19. 
    
20. void Dialog::sendMsg()
    
21. {
    
22.         QTextStream out(tcpSocket);
    
23.         out << lineEdit->text()<< endl;
    
24.         lineEdit->clear();
    
25. }
    
26. 
    
27. void Dialog::recvMsg()
    
28. {
    
29.         if (!tcpSocket->canReadLine()) return;
    
30. 
    
31.         QString responseLine;
    
32.         do {
    
33.                 QTextCodec *codec = QTextCodec::codecForName("UTF-8");
    
34.                 QByteArray qba = tcpSocket->readLine();
    
35.                 responseLine += codec->toUnicode(qba);
    
36.         } while (tcpSocket->canReadLine());
    
37. 
    
38.         msgBuffer += responseLine;
    
39. 
    
40.         textBrowser->setText(msgBuffer);
    
41.         textBrowser->moveCursor(QTextCursor::End);
    
42. }
    
43. 
    
44. void Dialog::error()
    
45. {
    
46.         QMessageBox::critical(this, "socket error", tcpSocket->errorString());
    
47.         tcpSocket->close();
    
48. }
    
49. 
    

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