171 lines
5.1 KiB
C++
171 lines
5.1 KiB
C++
#include "ExTcpServer.h"
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#include "ui_ExTcpServer.h"
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ExTcpServer::ExTcpServer(QWidget *parent) :
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QMainWindow(parent),
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ui(new Ui::ExTcpServer)
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{
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ui->setupUi(this);
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m_labListen = new QLabel("监听状态：");
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m_labSocket = new QLabel("socket状态：");
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m_labListen->setMidLineWidth(200);
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m_labSocket->setMinimumWidth(200);
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ui->statusBar->addWidget(m_labListen);
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ui->statusBar->addWidget(m_labSocket);
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QString localeIp = getLocalIp();
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setWindowTitle(windowTitle() + "---IP地址：" + localeIp);
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ui->comboBox->addItem(localeIp);
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m_tcpServer = new QTcpServer(this);
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connect(m_tcpServer, SIGNAL(newConnection()), this, SLOT(onNewConnection()));
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}
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ExTcpServer::~ExTcpServer()
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{
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delete ui;
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}
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QString ExTcpServer::getLocalIp()
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{
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QString hostName = QHostInfo::localHostName();
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QHostInfo hostInfo = QHostInfo::fromName(hostName);
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ui->plainTextEdit->appendPlainText("本机名称：" + hostName);
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QString locaIp;
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QList<QHostAddress> list = hostInfo.addresses();
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if (list.empty())
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return "null QString";
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foreach (QHostAddress addr, list) {
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if (addr.protocol() == QAbstractSocket::IPv4Protocol) {
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locaIp = addr.toString();
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break;
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}
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}
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return locaIp;
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}
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void ExTcpServer::closeEvent(QCloseEvent *event) //关闭窗口时候停止监听
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{
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if (m_tcpServer->isListening())
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m_tcpServer->close();
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event->accept();
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}
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void ExTcpServer::on_actStart_triggered()
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{
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QString Ip = ui->comboBox->currentText();
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quint16 port = ui->spinBox->value();
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QHostAddress addr(Ip);
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m_tcpServer->listen(addr, port); //监听指定的 IP 和指定的 port
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ui->plainTextEdit->appendPlainText("服务器地址为:" + m_tcpServer->serverAddress().toString() + " 服务器端口：" + QString::number(m_tcpServer->serverPort()));
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ui->plainTextEdit->appendPlainText("开始监听...");
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ui->actStart->setEnabled(false);
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ui->actStop->setEnabled(true);
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m_labListen->setText("监听状态：正在监听...");
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}
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void ExTcpServer::on_actStop_triggered()
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{
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if (!m_tcpServer->isListening())
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return;
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m_tcpServer->close(); //停止监听
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ui->actStart->setEnabled(true);
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ui->actStop->setEnabled(false);
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m_labListen->setText("监听状态：监听已经停止");
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}
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void ExTcpServer::on_actClear_triggered()
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{
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ui->plainTextEdit->clear();
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}
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void ExTcpServer::on_actQuit_triggered()
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{
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close();
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}
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void ExTcpServer::on_btnSend_clicked()
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{
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QString msg = ui->lineEdit->text();
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ui->plainTextEdit->appendPlainText("[服务器:]" + msg);
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ui->lineEdit->clear();
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ui->plainTextEdit->hasFocus();
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QByteArray str = msg.toUtf8();
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str.append('\n');
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m_tcpSocket->write(str);
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}
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void ExTcpServer::onSocketReadyRead() //读取缓冲区行文本
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{
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while (m_tcpSocket->canReadLine()) {
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ui->plainTextEdit->appendPlainText("[客户端:]" + m_tcpSocket->readLine());
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}
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}
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void ExTcpServer::onClientConnected() //客户端连接时
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{
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ui->plainTextEdit->appendPlainText("客户端套接字连接\n对等(peer)地址：" + m_tcpSocket->peerAddress().toString()
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+ " 对等(peer)端口：" + QString::number(m_tcpSocket->peerPort()));
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}
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void ExTcpServer::onClientDisonnected() //客户端断开连接时
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{
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ui->plainTextEdit->appendPlainText("客户端套接字断开");
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m_tcpSocket->deleteLater();
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}
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void ExTcpServer::onNewConnection()
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{
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m_tcpSocket = m_tcpServer->nextPendingConnection(); //创建 socket
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connect(m_tcpSocket, SIGNAL(connected()), this, SLOT(onClientConnected()));
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onClientConnected(); //本函数有写
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connect(m_tcpSocket, SIGNAL(disconnected()), this, SLOT(onClientDisonnected()));
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connect(m_tcpSocket, SIGNAL(stateChanged(QAbstractSocket::SocketState)), this, SLOT(onSocketStateChange(QAbstractSocket::SocketState)));
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onSocketStateChange(m_tcpSocket->state()); //本函数也有写 后面尝试删除此两行， 看看或不会有异常
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connect(m_tcpSocket, SIGNAL(readyRead()), this, SLOT(onSocketReadyRead()));
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}
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void ExTcpServer::onSocketStateChange(QAbstractSocket::SocketState socketState)
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{
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switch (socketState) {
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case QAbstractSocket::UnconnectedState:
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m_labSocket->setText("socket状态：UnconnectedState");
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break;
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case QAbstractSocket::HostLookupState:
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m_labSocket->setText("socket状态：HostLookupState");
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break;
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case QAbstractSocket::ConnectingState:
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m_labSocket->setText("socket状态：ConnectingState");
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break;
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case QAbstractSocket::ConnectedState:
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m_labSocket->setText("socket状态：ConnectedState");
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break;
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case QAbstractSocket::BoundState:
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m_labSocket->setText("socket状态：BoundState");
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break;
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case QAbstractSocket::ClosingState:
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m_labSocket->setText("socket状态：ClosingState");
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break;
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case QAbstractSocket::ListeningState:
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m_labSocket->setText("socket状态：ListeningState");
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break;
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default:
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m_labSocket->setText("socket状态：其他未知状态...");
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break;
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}
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}
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