Qt5 TcpSocket 客户端/服务器通讯实例

2019-11-08 00:49:48

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Qt Tcp 客户端 /服务端通信实例客户端 QTcpSocket[html] view plain copy

Client.PRo #------------------------------------------------- # # Project created by QtCreator 2016-03-23T21:15:18 # #------------------------------------------------- QT += core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets TARGET = Client TEMPLATE = app SOURCES += main.cpp/ mainwindow.cpp HEADERS += mainwindow.h FORMS += mainwindow.ui QT +=network mainwindow.h[html] view%20plain copy

#ifndef MAINWINDOW_H #define MAINWINDOW_H #include <QMainWindow> #include<QTcpSocket> #include<QString> #include<QDataStream> #include<QByteArray> namespace Ui { class MainWindow; } class MainWindow : public QMainWindow { Q_OBJECT public: explicit MainWindow(QWidget *parent = 0); ~MainWindow(); private slots: void on_pushButto_conn_clicked(); private: QTcpSocket * socket; private slots: void connected(); void on_pushButton_discon_clicked(); void readyread(); private: Ui::MainWindow *ui; }; #endif // MAINWINDOW_H mainwindow.cpp[html] view%20plain copy

#include "mainwindow.h" #include "ui_mainwindow.h" #include<QHostAddress> #include<QMessageBox> MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); this->socket=new QTcpSocket(this); } MainWindow::~MainWindow() { delete ui; } void MainWindow::on_pushButto_conn_clicked() { this->socket->connectToHost("127.0.0.1",80100,QTcpSocket::ReadWrite); connect(this->socket,SIGNAL(connected()),this,SLOT(connected())); } void MainWindow::connected() { QMessageBox::about(this,"提示","连接成功"); connect(this->socket,SIGNAL(readyRead()),this,SLOT(readyread())); } void MainWindow::on_pushButton_discon_clicked() { this->socket->close(); } void MainWindow::readyread() { QMessageBox::about(this,"提示","准备读取"); QByteArray arr=this->socket->readAll(); QDataStream * dst=new QDataStream(&arr,QIODevice::ReadOnly);/******重点******/ QString str1; QString str2; (*dst)>>str1>>str2; this->ui->textBrowser->setText(str1+str2); QMessageBox::about(this,"x",str1+str2); } main.cpp[html] view%20plain copy

#include "mainwindow.h" #include <Qapplication> int main(int argc, char *argv[]) { QApplication a(argc, argv); MainWindow w; w.show(); return a.exec(); } 服务端通信实例QTcpServerServer.pro[html] view%20plain copy

#------------------------------------------------- # # Project created by QtCreator 2016-03-23T20:48:06 # #------------------------------------------------- QT += core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets TARGET = Server TEMPLATE = app SOURCES += main.cpp/ mainwindow.cpp HEADERS += mainwindow.h FORMS += mainwindow.ui QT +=network mainwindow.h[html] view%20plain copy

#ifndef MAINWINDOW_H #define MAINWINDOW_H #include <QMainWindow> #include<QTcpServer> #include<QTcpSocket> namespace Ui { class MainWindow; } class MainWindow : public QMainWindow { Q_OBJECT public: explicit MainWindow(QWidget *parent = 0); ~MainWindow(); QTcpServer * server; QTcpSocket * socket; private slots: void newConnection(); void ReceiveData(); void on_pushButton_2_clicked(); void on_pushButton_clicked(); private: Ui::MainWindow *ui; }; #endif // MAINWINDOW_H mainwindow.cpp[html] view%20plain copy

#include "mainwindow.h" #include "ui_mainwindow.h" #include<QTcpServer> #include<QTcpSocket> #include<QMessageBox> #include<QDataStream> #include<QString> #include<QByteArray> MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); this->socket=0; this->server=new QTcpServer(this); this->server->listen(QHostAddress::Any,80100); QObject::connect(this->server,SIGNAL(newConnection()),this,SLOT(newConnection())); } MainWindow::~MainWindow() { delete ui; } void MainWindow::newConnection(){ this->socket=this->server->nextPendingConnection(); QMessageBox::about(this,"提示","有新的连接！"); connect(this->socket,SIGNAL(readyRead()),this,SLOT(ReceiveData())); } void MainWindow::ReceiveData(){ QByteArray arr=this->socket->readAll(); QDataStream dst(arr); QString str1; QString str2; dst>>str1>>str2; this->ui->browser->setText(str1+str2); } void MainWindow::on_pushButton_2_clicked() { QString str=this->ui->lineEdit->text(); QByteArray arr; QDataStream dst(&arr,QIODevice::ReadWrite);/*QDataStream是继承于QIODevice的所以必须要设置读写权限*/ dst<<QString("信息")<<str;/*这里一定要设置好数据类型*/ this->socket->write(arr); } void MainWindow::on_pushButton_clicked() { this->socket->close(); } main.cpp[html] view%20plain copy

#include "mainwindow.h" #include <QApplication> int main(int argc, char *argv[]) { QApplication a(argc, argv); MainWindow w; w.show(); return a.exec(); }

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