7.11作业-Toy模板网

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tcp服务器和客户端

服务器：

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);

    server=new QTcpServer(this);

}

Widget::~Widget()
{
    delete ui;
}


void Widget::on_ptn_open_clicked()
{
    quint16 port=ui->lineEdit_port->text().toUInt();

   if(server->listen(QHostAddress::Any,port)){
       QMessageBox::information(this,"","打开成功");
   }else{
       QMessageBox::critical(this,"","打开失败");
       return;
   }

   connect(server,&QTcpServer::newConnection,this,&Widget::newconnection_slot);
}

void Widget::newconnection_slot()
{
    QTcpSocket *socket=server->nextPendingConnection();
    clientVector.push_back(socket);

    connect(socket,&QTcpSocket::readyRead,this,&Widget::readyRead_slot);
}

void Widget::readyRead_slot()
{
    for(int i=0;i<clientVector.size();i++){
        if(clientVector[i]->state()==0){
            clientVector.remove(i);
        }
    }

    for(int i=0;i<clientVector.size();i++){
        if(clientVector[i]->bytesAvailable()!=0){
            QByteArray msg=clientVector[i]->readAll();
            ui->listWidget_show->addItem(QString::fromLocal8Bit(msg));

            for(int j=0;j<clientVector.size();j++){
                clientVector[j]->write(msg);
            }
        }
    }
}

客户端：文章来源地址https://www.toymoban.com/news/detail-550013.html

#include "second.h"
#include "ui_second.h"

Second::Second(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Second)
{
    ui->setupUi(this);

    connect(socket,&QTcpSocket::connected,this,&Second::connected_slot);
    connect(socket,&QTcpSocket::disconnected,this,&Second::disconnected_slot);

    connect(socket,&QTcpSocket::readyRead,this,&Second::readyRead_slot);

}

Second::~Second()
{
    delete ui;
}

void Second::jump_slot(){
    this->show();
}

void Second::on_ptn_connect_clicked()
{
    QString ip=ui->lineEdit_ip->text();
    quint16 port=ui->lineEdit_port->text().toUInt();
    userName=ui->lineEdit_userName->text();

    if(ui->ptn_connect->text()=="连接服务器"){
        socket->connectToHost(ip,port);
    }else{
        QString msg=userName+":离开聊天室";
        socket->write(msg.toLocal8Bit());
        socket->disconnectFromHost();

    }
}

void Second::connected_slot()
{
    ui->ptn_connect->setText("断开服务器");
    QMessageBox::information(this,"","连接成功");

    QString msg=userName+":进入聊天室";
    socket->write(msg.toLocal8Bit());
}

void Second::disconnected_slot()
{
    QMessageBox::information(this,"","您已断开连接");
    ui->ptn_connect->setText("断开服务器");
}

void Second::readyRead_slot()
{
    if(socket->bytesAvailable()!=0){
        QString msg=QString::fromLocal8Bit(socket->readAll());
        ui->listWidget_show->addItem(msg);
    }
}

void Second::on_ptn_sendmsg_clicked()
{
    QString msg=ui->lineEdit_sendmsg->text();
    socket->write(msg.toLocal8Bit());
    ui->lineEdit_sendmsg->clear();
}

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