基于Qt实现的TCP聊天室

#include "mainwindow.h" #include "ui_mainwindow.h" #include <QDateTime> MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) , ui(new Ui::MainWindow) { ui->setupUi(this); this->show(); ui->message_text->setEnabled(false); ui->btn_send->setEnabled(false); server_socket=new QTcpServer; client_socket=new QTcpSocket; t1=new QTimer; connect(t1,&QTimer::timeout,this,&MainWindow::update_state); this->setWindowTitle("TCP-Server"); } MainWindow::~MainWindow() { delete ui; } void MainWindow::new_Client_Connection() { client_socket=server_socket->nextPendingConnection(); t1->start(100); ui->message_text->setEnabled(true); connect(client_socket,&QTcpSocket::readyRead,this,&MainWindow::recv_message); ui->textBrowser->append(""); ui->textBrowser->append("**客户端连接成功"); ui->textBrowser->append(QString("**客户端地址:%1").arg(client_socket->peerAddress().toString())); ui->textBrowser->append(QString("**客户端端口:%1").arg(client_socket->peerPort())); } void MainWindow::on_btn_listen_clicked() { QString IP=ui->server_ip->text(); int port=ui->server_port->value(); QHostAddress addr(IP); server_socket->listen(addr,port); ui->textBrowser->append("**开始监听……"); ui->textBrowser->append(QString("**服务器地址:%1").arg(IP)); ui->textBrowser->append(QString("**服务器端口:%1").arg(port)); ui->btn_listen->setEnabled(false); ui->server_ip->setEnabled(false); ui->server_port->setEnabled(false); connect(server_socket,&QTcpServer::newConnection,this,&MainWindow::new_Client_Connection); } void MainWindow::recv_message() { QString message=client_socket->readAll(); ui->textBrowser->append(""); ui->textBrowser->append(QDateTime::currentDateTime().toString("yyyy/MM/dd hh:mm:ss")); ui->textBrowser->append(QString("[client]:%1").arg(message)); } void MainWindow::send_message() { client_socket->write(ui->message_text->text().toUtf8()); QString message=ui->message_text->text(); ui->textBrowser->append(""); ui->textBrowser->append(QDateTime::currentDateTime().toString("yyyy/MM/dd hh:mm:ss")); ui->textBrowser->append(QString("[server]:%1").arg(message)); ui->message_text->clear(); } void MainWindow::update_state() { if(ui->message_text->text().length()>0){ ui->btn_send->setEnabled(true); } else{ ui->btn_send->setEnabled(false); } } void MainWindow::on_btn_send_clicked() { send_message(); }