1.IDE:QTCreator
2.实验
3.记录
(1)做一个客户端UI界面(注意改标签名字,后面方便关联函数)
(2)编写客户端代码,代码编写完成之后,测试
a.cmd打开命令行
b.键入ipconfig,常看IPV4地址,然后同时打开客户端和服务端,将IPV4地址输入给客户端,然后端口选择一样即可,如果不行可以换其他端口试试
c.运行效果
4.代码
pro文件
QT += core gui network
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
CONFIG += c++17
# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
SOURCES += \
main.cpp \
widget.cpp
HEADERS += \
widget.h
FORMS += \
widget.ui
# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target
widget.h
#ifndef WIDGET_H
#define WIDGET_H
#include <QWidget>
#include <QTcpsocket>
QT_BEGIN_NAMESPACE
namespace Ui {
class Widget;
}
QT_END_NAMESPACE
class Widget : public QWidget
{
Q_OBJECT
public:
Widget(QWidget *parent = nullptr);
~Widget();
QTcpSocket *tcpsocket; //创建一个指针对象
private slots:
void on_openclient_pb_clicked();
void connected_slot(); //连接成功关联处理函数
void readyRead_slot(); //准备读关联处理函数
void on_closeclient_pb_clicked();
void on_send_pb_clicked();
private:
Ui::Widget *ui;
};
#endif // WIDGET_H
widget.cpp
#include "widget.h"
#include "ui_widget.h"
Widget::Widget(QWidget *parent)
: QWidget(parent)
, ui(new Ui::Widget)
{
ui->setupUi(this);
tcpsocket=new QTcpSocket(this);
}
Widget::~Widget()
{
delete ui;
}
void Widget::on_openclient_pb_clicked() //打开客户端按钮点击时处理函数
{
tcpsocket->connectToHost(ui->ip_line->text(),ui->port_line->text().toUInt()); //连接指定ip地址的指定端口
connect(tcpsocket,SIGNAL(connected()),this,SLOT(connected_slot())); //关联连接成功处理函数
}
void Widget::connected_slot()
{
connect(tcpsocket,SIGNAL(readyRead()),this,SLOT(readyRead_slot()));
}
void Widget::readyRead_slot()
{
ui->receive_line->appendPlainText(tcpsocket->readAll()); //在接收区显示所有接收到的数据
}
void Widget::on_closeclient_pb_clicked() //关闭客户端按钮按下处理函数
{
tcpsocket->close();
}
void Widget::on_send_pb_clicked() //发送按钮按下时处理函数
{
tcpsocket->write(ui->send_line->text().toLocal8Bit().data());
}