QT实现的服务端与客户端

#include "serverwidget.h" #include "ui_serverwidget.h" ServerWidget::ServerWidget(QWidget *parent) : QWidget(parent), ui(new Ui::ServerWidget) { ui->setupUi(this); tcpServer=NULL; tcpSocket=NULL; this->setWindowTitle("服务器：8888"); tcpServer=new QTcpServer(this); tcpServer->listen(QHostAddress::Any,8888); connect(tcpServer,&QTcpServer::newConnection, [=]() { //取出建立好连接的套接字 tcpSocket=tcpServer->nextPendingConnection(); //获取对方的IP和端口 QString ip=tcpSocket->peerAddress().toString(); qint16 port=tcpSocket->peerPort(); QString temp=QString("[%1:%2]:成功连接").arg(ip).arg(port); ui->textEditRead->setText(temp); connect(tcpSocket,&QTcpSocket::readyRead, [=]() { QByteArray array=tcpSocket->readAll(); ui->textEditRead->append(array); }); }); } ServerWidget::~ServerWidget() { delete ui; } void ServerWidget::on_pushButtonSend_clicked() { if(tcpSocket==NULL) { return; } QString str=ui->textEditWrite->toPlainText(); tcpSocket->write(str.toUtf8().data()); } void ServerWidget::on_pushButtonClose_clicked() { if(tcpSocket==NULL) { return; } tcpSocket->disconnectFromHost(); tcpSocket->close(); tcpSocket=NULL; }