【QT】VS2015+QT联合开发，一个基于QT的简易TCP聊天小程序

在VS上开发了一个TCP聊天小程序

使用软件为VS2015，包含了msvc2015版本qt，建立程序时选择QWidget，创建时模块选择记得勾上Network模块，否则无法识别。本程序未使用ui文件，所以环境配置一样的话直接可以使用。若环境不一样也可以用于新手学习参考，特别简单。

client.h

#pragma once #include <QtWidgets/QWidget> #include "ui_WeSpeak3_client.h" #include <QtNetwork> #if _MSC_VER >= 1600 #pragma execution_character_set("utf-8") #endif class QAbstractSocket; class QPushButton; class QTextEdit; class QPlainTextEdit; class QLabel; class QTcpSocket; class QString; class QLineEdit; class QTcpSocket; class WeSpeak3_client : public QWidget { Q_OBJECT public: WeSpeak3_client(QWidget *parent = Q_NULLPTR); private: Ui::WeSpeak3_clientClass ui; QTcpSocket * client; QLabel *lab_sIP; QLabel * lab_sPort; QPushButton * button_enter; QTextEdit * text_enter; QPlainTextEdit * text_rev; QLineEdit * sIP; QLineEdit * sPort; QPushButton* button_close; QTcpSocket* conn; private slots: void on_sendBtn_clicked(); };

client.c

#include "WeSpeak3_client.h" #include <QtNetwork> #include <QLabel> #include <QPushButton> #include <QLineEdit> #include <iostream> #include <string> #include <QTextEdit> #include <QPlainTextEdit> #include <QVBoxLayout> #include <QHostAddress> #include <QAbstractSocket> #include <QTcpSocket> #include <QByteArray> #include <QString> #if _MSC_VER >= 1600 #pragma execution_character_set("utf-8") #endif WeSpeak3_client::WeSpeak3_client(QWidget *parent) : QWidget(parent) { ui.setupUi(this); this->setFixedSize(800, 600); lab_sIP = new QLabel(this); lab_sPort = new QLabel(this); lab_sIP->setText("IP"); lab_sIP->move(15, 35); lab_sPort->setText("Port"); lab_sPort->move(15, 60); sIP = new QLineEdit(this); sPort = new QLineEdit(this); sIP->setText("192.168.20.35"); sIP->move(50, 30); sPort->setText("8888"); sPort->move(50, 55); //发送按钮 button_enter = new QPushButton(this); button_enter->setFixedSize(80, 30); button_enter->move(460, 520); button_enter->setText("发送(Enter)"); button_enter->setShortcut(QKeySequence(QLatin1String("Enter"))); //文本输入框 //QLineEdit* line_enter = new QLineEdit(this); text_enter = new QTextEdit(this); text_enter->setFixedSize(400, 100); text_enter->move(50, 450); text_enter->setPlaceholderText("please input what do you want to say by press 'enter'"); //消息获得框 text_rev = new QPlainTextEdit(this); text_rev->setPlaceholderText("message recive"); text_rev->setFixedSize(400, 300); text_rev->move(50, 100); button_close = new QPushButton(this); button_close->move(720, 10); button_close->setText("关闭"); connect(button_close, &QPushButton::clicked, [=]() { close(); }); client = new QTcpSocket(this); client->connectToHost(sIP->text(), sPort->text().toInt()); connect(client, &QTcpSocket::readyRead, this, [=]() { QByteArray buf; QByteArray array = client->readAll(); array = "Server say:" + array+"\r"; //buf = array; text_rev->appendPlainText(array); } ); connect(button_enter, &QPushButton::clicked, this, &WeSpeak3_client::on_sendBtn_clicked); } void WeSpeak3_client::on_sendBtn_clicked() { QString aha = text_enter->toPlainText(); client->write(aha.toUtf8()); this->text_rev->appendPlainText("Client Say:" + aha); this->text_enter->clear(); }

server.h

#pragma once #include <QtWidgets/QWidget> #include "ui_WeSpeek3_SERVER.h" #include <QtNetwork> #include <QTcpServer> #if _MSC_VER >= 1600 #pragma execution_character_set("utf-8") #endif class QAbstractSocket; class QTcpServer; class QPushButton; class QTextEdit; class QPlainTextEdit; class QLabel; class QTcpSocket; class QString; class QLineEdit; class QTcpSocket; class WeSpeek3_SERVER : public QWidget { Q_OBJECT public: WeSpeek3_SERVER(QWidget *parent = Q_NULLPTR); private: Ui::WeSpeek3_SERVERClass ui; QTcpServer * server; QLabel *lab_sIP; QLabel * lab_sPort; QPushButton * button_enter; QTextEdit * text_enter; QPlainTextEdit * text_rev; QLineEdit * sIP; QLineEdit * sPort; QPushButton* button_close; QTcpSocket* conn; private slots: void conn_read(); void on_sendBtn_clicked(); };

server.c

#include "WeSpeek3_SERVER.h" #include <QtNetwork> #include <QTcpServer> #include <QLabel> #include <QPushButton> #include <QLineEdit> #include <iostream> #include <string> #include <QTextEdit> #include <QPlainTextEdit> #include <QVBoxLayout> #include <QHostAddress> #include <QAbstractSocket> #include <QTcpSocket> #include <QByteArray> #include <QString> #if _MSC_VER >= 1600 #pragma execution_character_set("utf-8") #endif WeSpeek3_SERVER::WeSpeek3_SERVER(QWidget *parent) : QWidget(parent) { ui.setupUi(this); this->setFixedSize(800, 600); lab_sIP = new QLabel(this); lab_sPort = new QLabel(this); lab_sIP->setText("IP"); lab_sIP->move(15, 35); lab_sPort->setText("Port"); lab_sPort->move(15, 60); sIP = new QLineEdit(this); sPort = new QLineEdit(this); sIP->setText("192.168.20.35"); sIP->move(50, 30); sPort->setText("8888"); sPort->move(50, 55); //发送按钮 button_enter = new QPushButton(this); button_enter->setFixedSize(80, 30); button_enter->move(460, 520); button_enter->setText("发送(Enter)"); button_enter->setShortcut(QKeySequence(QLatin1String("Enter"))); //文本输入框 //QLineEdit* line_enter = new QLineEdit(this); text_enter = new QTextEdit(this); text_enter->setFixedSize(400, 100); text_enter->move(50, 450); text_enter->setPlaceholderText("please input what do you want to say by press 'enter'"); //消息获得框 text_rev = new QPlainTextEdit(this); text_rev->setPlaceholderText("message recive"); text_rev->setFixedSize(400, 300); text_rev->move(50, 100); button_close = new QPushButton(this); button_close->move(720, 10); button_close->setText("关闭"); connect(button_close, &QPushButton::clicked, [=]() { close(); }); conn = new QTcpSocket(this); server = new QTcpServer(this); server->listen(QHostAddress(sIP->text()),sPort->text().toInt()); //newconnection connect(server, &QTcpServer::newConnection, this, &WeSpeek3_SERVER::conn_read); connect(button_enter, &QPushButton::clicked, this, &WeSpeek3_SERVER::on_sendBtn_clicked); } void WeSpeek3_SERVER::conn_read() { conn = server->nextPendingConnection();//返回客户端的套接字对象地址 text_rev->setPlainText("has new client connect"); connect(conn, &QTcpSocket::readyRead, this, [=]() { QByteArray array = conn->readAll(); array = "Client say:" + array; this->text_rev->appendPlainText(array); }); } void WeSpeek3_SERVER::on_sendBtn_clicked() { QString aha = text_enter->toPlainText(); conn->write(aha.toUtf8()); this->text_rev->appendPlainText("Server Say:" + aha); this->text_enter->clear(); }