#ifndef CLIENTWIDGET_H
#define CLIENTWIDGET_H

#include <QWidget>
#include "ui_ClientWidget.h"
#include <QTcpSocket>
#include <QHostAddress>
#include <QTextCodec>

class ClientWidget : public QWidget, public Ui::ClientWidget
{
?? ?Q_OBJECT

public:
?? ?ClientWidget(QWidget *parent = 0);
?? ?~ClientWidget();

private slots:
?? ?//連接按鈕
?? ?void onConnectButtonClicked();
?? ?//
?? ?void onTextEditRead();
?? ?//發(fā)送按鈕
?? ?void onButtonSendClicked();

?? ?//獲取對方發(fā)送的內(nèi)容
?? ?void onRecesiveDataFromServer();

?? ?//斷開連接
?? ?void onDisConnect();
private:
?? ?//Ui::ClientWidget ui;
?? ?QTcpSocket *tcpSocket;
};

#endif // CLIENTWIDGET_H

#include "stdafx.h"
#include "ClientWidget.h"
#include <QPushButton>


ClientWidget::ClientWidget(QWidget *parent)
?? ?: QWidget(parent)
{
?? ?setupUi(this);
?? ?setWindowTitle(QString::fromWCharArray(L"客戶端"));

?? ?tcpSocket = NULL;

?? ?//分配空間，指定父對象
?? ?tcpSocket = new QTcpSocket(this);

?? ?ButtonDisconnect->setEnabled(false);
?? ?//tcpSocket->abort();

?? ?//發(fā)送與服務(wù)器連接信號
?? ?connect(connectBtn, SIGNAL(clicked()), this, SLOT(onConnectButtonClicked()));
?? ?
?? ?//連接成功后接收到connected信號
?? ?connect(tcpSocket, SIGNAL(connected()), this, SLOT(onTextEditRead()));
?? ?//給服務(wù)器發(fā)送內(nèi)容
?? ?connect(ButtonSend, SIGNAL(clicked()), this, SLOT(onButtonSendClicked()));
?? ?//接收來自服務(wù)器的內(nèi)容，信號readReady
?? ?connect(tcpSocket, SIGNAL(readyRead()), this, SLOT(onRecesiveDataFromServer()));

?? ?connect(ButtonDisconnect, SIGNAL(clicked()), this, SLOT(onDisConnect()));
?? ?
}

ClientWidget::~ClientWidget()
{

}

void ClientWidget::onConnectButtonClicked()
{
?? ?//獲取服務(wù)器IP和端口
?? ?QString ipStr = LineEditIPName->text();
?? ?qint16 portName = LineEditPortName->text().toInt();
?? ?QHostAddress ip = QHostAddress(ipStr);
?? ?//主動和服務(wù)器建立連接
?? ?tcpSocket->connectToHost(ip, portName);
}

void ClientWidget::onTextEditRead()
{
?? ?TextEditRead->setText(QString::fromLocal8Bit("成功和服務(wù)器建立好連接?。?！"));

?? ?connectBtn->setEnabled(false);
?? ?ButtonDisconnect->setEnabled(true);

}

void ClientWidget::onButtonSendClicked()
{
?? ?if (tcpSocket == NULL)
?? ?{
?? ??? ?return;
?? ?}
?? ?//獲取編輯框內(nèi)容
?? ?QString str = TextEditWrite->toPlainText();

?? ?//發(fā)送文本內(nèi)容
?? ?tcpSocket->write(str.toUtf8().data());

?? ?TextEditWrite->clear();
}

void ClientWidget::onRecesiveDataFromServer()
{
?? ?QByteArray arrayAll = tcpSocket->readAll();

?? ?QTextCodec *tc = QTextCodec::codecForName("UTF-8");
?? ?QString str = tc->toUnicode(arrayAll);

?? ?//追加到讀取編輯區(qū)中
?? ?TextEditRead->append(str);
}

void ClientWidget::onDisConnect()
{
?? ?if (tcpSocket == NULL)
?? ?{
?? ??? ?return;
?? ?}

?? ?tcpSocket->disconnectFromHost();

?? ?tcpSocket->close();
?? ?connectBtn->setEnabled(true);

?? ?ButtonDisconnect->setEnabled(false);
?? ?
?? ?TextEditRead->setText(QString::fromLocal8Bit("連接已斷開?。。?));
}

#ifndef SERVERWIDGET_H
#define SERVERWIDGET_H

#include <QtGui/QWidget>
#include "ui_ServerWidget.h"
#include <QTcpServer>
#include <QTcpSocket>
#include <QString>
#include <QTextCodec>
class ServerWidget : public QWidget
{
?? ?Q_OBJECT?? ?

public:
?? ?ServerWidget(QWidget *parent = 0, Qt::WFlags flags = 0);
?? ?~ServerWidget();
?? ?QTcpServer *tcpServer;
?? ?QTcpSocket *tcpSocket;

private slots:
?? ?void OnConnectTcpServer();?

?? ?void OnSendButtonClicked();

?? ?void OnCloseButtonClicked();

?? ?void OnSeResiveData();

?? ?void OnDisconnected();

private:
?? ?Ui::ServerWidgetClass ui;
};

#endif // SERVERWIDGET_H

#include "stdafx.h"
#include "ServerWidget.h"

ServerWidget::ServerWidget(QWidget *parent, Qt::WFlags flags)
?? ?: QWidget(parent, flags)
{
?? ?ui.setupUi(this);
?? ?tcpServer = NULL;
?? ?tcpSocket = NULL;
?? ?setWindowTitle(QString::fromWCharArray(L"服務(wù)器(端口：8888)"));
?? ?//箭筒套接字，指定父對象，讓其自動回收空間
?? ?tcpServer = new QTcpServer(this);
?? ?//監(jiān)聽并綁定端口
?? ?tcpServer->listen(QHostAddress::Any, 8888);
?? ?
?? ?connect(tcpServer, SIGNAL(newConnection()), this, SLOT(OnConnectTcpServer()));

?? ?connect(ui.sendButton, SIGNAL(clicked()), this, SLOT(OnSendButtonClicked()));

?? ?connect(ui.closeButton, SIGNAL(clicked()), this, SLOT(OnCloseButtonClicked()));

?? ?connect(tcpServer, SIGNAL(disconnected()), this, SLOT(OnDisconnected()));

}

ServerWidget::~ServerWidget()
{
?? ?
}
#include <QDebug>

void ServerWidget::OnConnectTcpServer()
{
?? ?//取出建立好的套接字
?? ?tcpSocket = tcpServer->nextPendingConnection();
?? ?//獲取對方的IP和端口號?
?? ?QString ipStr = tcpSocket->peerAddress().toString();

?? ?qint16 portName = tcpSocket->peerPort();

?? ?QString connectStr = QString::fromLocal8Bit("成功連接");
?? ?
?? ?QString tempStr = QString("[%1 : %2]:" + connectStr).arg(ipStr).arg(portName);

?? ?ui.textRead->setText(tempStr);
?? ??
?? ?connect(tcpSocket, SIGNAL(readyRead()), this, SLOT(OnSeResiveData()));


}

void ServerWidget::OnSendButtonClicked()
{
?? ?if (tcpSocket == NULL)
?? ?{
?? ??? ?return;
?? ?}
?? ?//獲取編輯區(qū)的內(nèi)容
?? ?QString str = ui.textWrite->toPlainText();
?? ?//給對方發(fā)送數(shù)據(jù)。使用套接字是tcpSocket
?? ?tcpSocket->write(str.toUtf8().data());

?? ?ui.textWrite->clear();
}
?
void ServerWidget::OnCloseButtonClicked()
{
?? ?if (tcpSocket == NULL)
?? ?{
?? ??? ?return;
?? ?}

?? ?//主動和客戶端斷開連接
?? ?tcpSocket->disconnectFromHost();
?? ?
?? ?ui.textRead->setText(QString::fromLocal8Bit("連接已斷開！?。?));

?? ?tcpSocket = NULL;

}

void ServerWidget::OnSeResiveData()
{
?? ?//從通信套接字中取出內(nèi)容
?? ?QByteArray dataAll = ?tcpSocket->readAll();

?? ?QTextCodec *tc = QTextCodec::codecForName("UTF-8");

?? ?QString str = tc->toUnicode(dataAll);

?? ?ui.textRead->append(str);


}

void ServerWidget::OnDisconnected()
{
?? ?ui.textRead->setText(QString::fromLocal8Bit("連接已斷開?。?！"));

}