allwinner全志-V3S-LINUX-QT-实现RJ45以太网数据收发通讯.zip

/***************** 嵌入式代码开�?************/ /* 更多例程：https://iot666.blog.csdn.net/ */ /* 技术咨询：https://yotill.taobao.com/ */ /* 网盘下载：http://doc.yotill.com/ */ /****** Powered by YOTILL,IOT Solution *******/ //////////////////////////////////////////////////////// #include "widget.h" #include "ui_widget.h" #include <QNetworkInterface> #include <QHostAddress> #include <QTcpSocket> #include "tcpclient.h" #include <QTextEdit> #include <QKeyEvent> #define KEY3 16777330 Widget* myW=NULL; Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); setWindowFlags(Qt::FramelessWindowHint); setWindowOpacity(0.7); myW=this; m_strLanip=""; system("udhcpc -i eth0 &"); m_pinittimer=new QTimer; connect(m_pinittimer,SIGNAL(timeout()),this,SLOT(on_inittimeout())); m_pinittimer->start(1000); ui->textEdit_hex->setReadOnly(true); ui->textEdit_ascii->setReadOnly(true); } Widget::~Widget() { delete ui; } void Widget::initserver() { m_ptcpserver=new QTcpServer; m_ptcpserver->listen(QHostAddress::Any,local_port); ui->label->setText("server : "+m_strLanip+" "+QString::number(local_port)); connect(m_ptcpserver,SIGNAL(newConnection()),this,SLOT(newconnect())); } void Widget::wirtetext(QByteArray ba) { ui->textEdit_hex->append(ba.toHex()); ui->textEdit_ascii->append(QString(ba).toLocal8Bit()); } void Widget::on_inittimeout() { QList<QNetworkInterface> list=QNetworkInterface::allInterfaces(); foreach(QNetworkInterface interface,list) { qDebug()<<"Device:"<<interface.name(); qDebug()<<"HardwareAddress:"<<interface.hardwareAddress(); QList<QNetworkAddressEntry> entryList=interface.addressEntries(); foreach(QNetworkAddressEntry entry,entryList) {//便利ip条目列表 qDebug()<<"IP address:"<<entry.ip().toString(); qDebug()<<"Netmask:"<<entry.netmask().toString();//获取子网掩码 qDebug()<<"Broadcast:"<<entry.broadcast().toString();//获取广播地址 if(interface.name()=="eth0") { if(entry.ip().protocol()==QAbstractSocket::IPv4Protocol) m_strLanip=entry.ip().toString(); } /* else if(interface.name()=="eth0") { if(entry.ip().protocol()==QAbstractSocket::IPv4Protocol) m_lanip=entry.ip().toString(); } */ } } if(m_strLanip=="") { ui->label->setText("get lan ip failed!"); } else { ui->label->setText("get lan ip successed!"); m_pinittimer->stop(); initserver(); } } void Widget::newconnect() { printf("new connection!"); QTcpSocket* skt=m_ptcpserver->nextPendingConnection(); tcpclient* newclt=new tcpclient; newclt->setclient(skt); connect(newclt->m_pClient,SIGNAL(readyRead()),newclt,SLOT(readmsg())); connect(newclt->m_pClient,SIGNAL(disconnected()),newclt,SLOT(ondisconnected())); } void Widget::keyPressEvent(QKeyEvent *event) { if(event->key()==KEY3) { exit(0); } }