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75 lines
2.0 KiB
75 lines
2.0 KiB
#include "widget.h"
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#include "ui_widget.h"
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#include<QMessageBox>
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Widget::Widget(QWidget *parent) :
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QWidget(parent),
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ui(new Ui::Widget)
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{
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ui->setupUi(this);
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//创建对象
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tcpServer = new QTcpServer(this);
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tcpSocket = new QTcpSocket(this);
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//2.有新连接时创建tcpSocket
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connect(tcpServer,SIGNAL(newConnection()),this,SLOT(newConnection_Slot()));
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}
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Widget::~Widget()
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{
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delete ui;
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}
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//打开服务器
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void Widget::on_btnOpenServer_clicked()
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{
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//1.打开监听，所有地址，端口由输入框设定
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if(tcpServer->listen(QHostAddress::Any,ui->tcpPort->text().toUInt())){
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QMessageBox::information(this,"提示","正在监听");
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}else{
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QMessageBox::critical(this,"提示","失败");
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}
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}
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//有新连接时创建tcpsocket
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void Widget::newConnection_Slot(){
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if(tcpServer->hasPendingConnections()){
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ui->messageRCV->appendPlainText("a client has connected!");
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}
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//2.调用`nextPendingConnection()`来接受待处理的连接。返回一个连接的`QTcpSocket()`
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tcpSocket = tcpServer->nextPendingConnection();
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//3.有数据时，读取tcpSocket数据
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connect(tcpSocket,SIGNAL(readyRead()),this,SLOT(readyRead_SLOT()));
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}
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//3.有数据时，读取tcpSocket数据
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void Widget::readyRead_SLOT(){
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QString buff;
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buff = tcpSocket->readAll();
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ui->messageRCV->appendPlainText(buff);
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}
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//4.关闭服务器
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void Widget::on_btnCloseServer_clicked()
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{
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tcpServer->disconnect();
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tcpServer->close();
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if(tcpServer->isListening()){
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QMessageBox::information(this,"提示","监听中。。");
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}else{
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QMessageBox::information(this,"提示","停止监听");
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}
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}
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//5.发送数据
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void Widget::on_btnSendMessage_clicked()
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{
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//toLocal8Bit()转化为字符数组，data()转化为字符指针
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tcpSocket->write(ui->editMessageSend->text().toLocal8Bit().data());
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}
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void Widget::on_btnCloseNow_clicked()
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{
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tcpSocket->close();
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QMessageBox::information(this,"提示","已断开当前连接，继续监听中。。");
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}
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