form.cpp

QT4网络程序

#include "form.h"
 #include <QtGui>
 #include <QtNetwork>
#include <QTimer>
Form::Form()
{   
    y=0;
    this->setObjectName(QString::fromUtf8("Client"));
    this->resize(240,260);
    layoutWidget = new QWidget(this);
    m_ip = new QLineEdit("10.10.205.123");
    m_port = new QLineEdit("2222");
    layoutWidget->setObjectName(QString::fromUtf8("layoutWidget"));
    layoutWidget->setGeometry(QRect(0, 0, 240, 260));
    verticalLayout_5 = new QVBoxLayout(layoutWidget);
    verticalLayout_5->setObjectName(QString::fromUtf8("verticalLayout_5"));
  //  verticalLayout_5->setContentsMargins(0, 0, 0, 0);
    verticalLayout_4 = new QVBoxLayout();
    verticalLayout_4->setObjectName(QString::fromUtf8("verticalLayout_4"));
    verticalLayout_3 = new QVBoxLayout();
    verticalLayout_3->setObjectName(QString::fromUtf8("verticalLayout_3"));
    verticalLayout_2 = new QVBoxLayout();
    verticalLayout_2->setObjectName(QString::fromUtf8("verticalLayout_2"));
    verticalLayout = new QVBoxLayout();
    verticalLayout->setObjectName(QString::fromUtf8("verticalLayout"));
    horizontalLayout_6 = new QHBoxLayout();
    horizontalLayout_6->setObjectName(QString::fromUtf8("horizontalLayout_6"));
    horizontalLayout_3 = new QHBoxLayout();
    horizontalLayout_3->setObjectName(QString::fromUtf8("horizontalLayout_3"));
    horizontalLayout = new QHBoxLayout();
    horizontalLayout->setObjectName(QString::fromUtf8("horizontalLayout"));
    label = new QLabel(layoutWidget);
    label->setObjectName(QString::fromUtf8("label"));
    horizontalLayout->addWidget(label);
    horizontalLayout_3->addLayout(horizontalLayout);
    //m_ip = new QLineEdit(layoutWidget);
    m_ip->setObjectName(QString::fromUtf8("m_ip"));
    horizontalLayout_3->addWidget(m_ip);
    horizontalLayout_6->addLayout(horizontalLayout_3);

    horizontalLayout_2 = new QHBoxLayout();
    horizontalLayout_2->setObjectName(QString::fromUtf8("horizontalLayout_2"));
    label_2 = new QLabel(layoutWidget);
    label_2->setObjectName(QString::fromUtf8("label_2"));

    horizontalLayout_2->addWidget(label_2);

    //m_port = new QLineEdit(layoutWidget);
    m_port->setObjectName(QString::fromUtf8("m_port"));

    horizontalLayout_2->addWidget(m_port);


    horizontalLayout_6->addLayout(horizontalLayout_2);


    verticalLayout->addLayout(horizontalLayout_6);

    m_display = new QTextEdit(layoutWidget);
    m_display->setObjectName(QString::fromUtf8("m_display"));

    verticalLayout->addWidget(m_display);


    verticalLayout_2->addLayout(verticalLayout);

    horizontalLayout_7 = new QHBoxLayout();
    horizontalLayout_7->setObjectName(QString::fromUtf8("horizontalLayout_7"));
    label_5 = new QLabel(layoutWidget);
    label_5->setObjectName(QString::fromUtf8("label_5"));

    horizontalLayout_7->addWidget(label_5);

    m_sent = new QLineEdit(layoutWidget);
    m_sent->setObjectName(QString::fromUtf8("m_sent"));

    horizontalLayout_7->addWidget(m_sent);

    m_sentbutton = new QPushButton(layoutWidget);
    m_sentbutton->setObjectName(QString::fromUtf8("m_sentbutton"));

    horizontalLayout_7->addWidget(m_sentbutton);


    verticalLayout_2->addLayout(horizontalLayout_7);


    verticalLayout_3->addLayout(verticalLayout_2);

    horizontalLayout_8 = new QHBoxLayout();
    horizontalLayout_8->setObjectName(QString::fromUtf8("horizontalLayout_8"));
    horizontalLayout_5 = new QHBoxLayout();
    horizontalLayout_5->setObjectName(QString::fromUtf8("horizontalLayout_5"));
    label_3 = new QLabel(layoutWidget);
    label_3->setObjectName(QString::fromUtf8("label_3"));

    horizontalLayout_5->addWidget(label_3);

    m_ad1 = new QSpinBox(layoutWidget);
    m_ad1->setObjectName(QString::fromUtf8("m_ad1"));

    horizontalLayout_5->addWidget(m_ad1);


    horizontalLayout_8->addLayout(horizontalLayout_5);

    horizontalLayout_4 = new QHBoxLayout();
    horizontalLayout_4->setObjectName(QString::fromUtf8("horizontalLayout_4"));
    label_4 = new QLabel(layoutWidget);
    label_4->setObjectName(QString::fromUtf8("label_4"));

    horizontalLayout_4->addWidget(label_4);

    m_ad2 = new QSpinBox(layoutWidget);
    m_ad2->setObjectName(QString::fromUtf8("m_ad2"));

    horizontalLayout_4->addWidget(m_ad2);


    horizontalLayout_8->addLayout(horizontalLayout_4);


    verticalLayout_3->addLayout(horizontalLayout_8);


    verticalLayout_4->addLayout(verticalLayout_3);

    horizontalLayout_9 = new QHBoxLayout();
    horizontalLayout_9->setObjectName(QString::fromUtf8("horizontalLayout_9"));
    m_led1 = new QRadioButton(layoutWidget);
    m_led1->setObjectName(QString::fromUtf8("m_led1"));

    horizontalLayout_9->addWidget(m_led1);

    m_led2 = new QRadioButton(layoutWidget);
    m_led2->setObjectName(QString::fromUtf8("m_led2"));

    horizontalLayout_9->addWidget(m_led2);
    verticalLayout_4->addLayout(horizontalLayout_9);
    verticalLayout_5->addLayout(verticalLayout_4);
    horizontalLayout_10 = new QHBoxLayout();
    horizontalLayout_10->setObjectName(QString::fromUtf8("horizontalLayout_10"));
    quit = new QPushButton(layoutWidget);
    quit->setObjectName(QString::fromUtf8("quit"));
    horizontalLayout_10->addWidget(quit);
    m_disconnect = new QPushButton(layoutWidget);
    m_disconnect->setObjectName(QString::fromUtf8("m_disconnect"));
    horizontalLayout_10->addWidget(m_disconnect);
    m_connect = new QPushButton(layoutWidget);
    m_connect->setObjectName(QString::fromUtf8("m_connect"));
    horizontalLayout_10->addWidget(m_connect);
    verticalLayout_5->addLayout(horizontalLayout_10);
    retranslateUi();
    tcpSocket = new QTcpSocket(this);
    

//＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊信号连接声明＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊
    QObject::connect(quit, SIGNAL(clicked()), this, SLOT(close()));    //退出
    QObject::connect(m_connect, SIGNAL(clicked()), this, SLOT(connecthost()));    //连接
    QObject::connect(m_disconnect, SIGNAL(clicked()), this, SLOT(disconnect()));   //关闭连接
    QObject::connect(m_sentbutton, SIGNAL(clicked()), this, SLOT(slotSend()));


    connect(tcpSocket, SIGNAL(readyRead()), this, SLOT(slotRead()));    //可读
    connect(tcpSocket, SIGNAL(connected()), this, SLOT(display_connect()));  //连接上到信号
    connect(tcpSocket, SIGNAL(disconnected ()), this, SLOT(display_disconnect()));
    QObject::connect(tcpSocket, SIGNAL(error(QAbstractSocket::SocketError)),this, SLOT(displayError(QAbstractSocket::SocketError)));
    QMetaObject::connectSlotsByName(this);


    } // setupUi
void Form::retranslateUi()
{
    this->setWindowTitle(QApplication::translate("Client", "Client", 0, QApplication::UnicodeUTF8));
    label->setText(QApplication::translate("Client", "IP", 0, QApplication::UnicodeUTF8));
    label_2->setText(QApplication::translate("Client", "Port", 0, QApplication::UnicodeUTF8));
    label_5->setText(QApplication::translate("Client", "Sent", 0, QApplication::UnicodeUTF8));
    m_sentbutton->setText(QApplication::translate("Client", "Sent", 0, QApplication::UnicodeUTF8));
    label_3->setText(QApplication::translate("Client", "AD1", 0, QApplication::UnicodeUTF8));
    label_4->setText(QApplication::translate("Client", "AD2", 0, QApplication::UnicodeUTF8));
    m_led1->setText(QApplication::translate("Client", "LED1", 0, QApplication::UnicodeUTF8));
    m_led2->setText(QApplication::translate("Client", "LED2", 0, QApplication::UnicodeUTF8));
    quit->setText(QApplication::translate("Client", "Exit", 0, QApplication::UnicodeUTF8));
    m_disconnect->setText(QApplication::translate("Client", "Discon", 0, QApplication::UnicodeUTF8));
    m_connect->setText(QApplication::translate("Client", "Connect", 0, QApplication::UnicodeUTF8));
    Q_UNUSED(this);
} // retranslateUi


void Form::connecthost()
 {
     blockSize = 0;
     tcpSocket->abort();
     tcpSocket->connectToHost(m_ip->text(),m_port->text().toInt());
    
 }
void Form::readserver()
 {
     QDataStream in(tcpSocket);
     in.setVersion(QDataStream::Qt_4_0);
     if (blockSize == 0) {
         if (tcpSocket->bytesAvailable() < (int)sizeof(quint16))
             return;
         in >> blockSize;
     }
     if (tcpSocket->bytesAvailable() < blockSize)
         return;
     QString nextFortune;
     in >> nextFortune;
     m_display->append(nextFortune);
 }
void Form::display_connect()
{
       m_display->setText("Connected");
       y=1;
	QTimer *timer = new QTimer(this);
     	connect(timer, SIGNAL(timeout()), this, SLOT(slotSend()));
     	timer->start(5000);
}
void Form::display_disconnect()
{
   m_display->setText("disconnect from Server");
}
void Form::slotRead()
{
  QString text;
  while (tcpSocket->canReadLine())
    text += tcpSocket->readLine();
  if (!text.isNull())
   m_display->setTextColor(Qt::red);
   m_display->append(text);
}
void Form::disconnect()
{
  tcpSocket->close();
  display_disconnect();
}

void Form::slotSend()
{
  QString x;
  int led1,led2;
	if(y==1)
	{
	if(m_led1->isChecked()){led1=1;}else led1=0;
		if(m_led2->isChecked()){led2=1;}else led2=0;

  	QString input = m_sent->text();
 	 if (input.isEmpty()) {input=" recive other value";} 
             
   	 QTextStream stream( tcpSocket);
   	 stream <<"Client:"<< input << endl;
		stream <<m_ad1->value()<< endl;
         		 stream << m_ad2->value()<< endl;
 				stream <<led1<< endl;
                                    stream <<led2<< endl;
    
  	 // m_display->setText(input);
   	 m_sent->setText("");
	}
	else	QMessageBox::warning(this, tr("Client"),
                                            tr("Have not connected"));
}
 void Form::displayError(QAbstractSocket::SocketError socketError)
 {
     switch (socketError) {
     case QAbstractSocket::RemoteHostClosedError:
         break;
     case QAbstractSocket::HostNotFoundError:
         QMessageBox::warning(this, tr("Client"),
                                  tr("The host was not found.\n Please check the "
                                     "host name and port settings."));
         break;
     case QAbstractSocket::ConnectionRefusedError:
         QMessageBox::warning(this, tr("Client"),
                                  tr("The connection was refused by server.\n "
                                     "Make sure the fortune server is running, \n"
                                     "and check that the host name and port\n "
                                     "settings are correct."));
         break;
     default:
         QMessageBox::warning(this, tr("Client"),
                                  tr("The following error occurred: %1.")
                                  .arg(tcpSocket->errorString()));
     }
 }