QT实现ping命令

Posted 2022-10-22

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QDebug>
#include <QProcess>
#include <QTextCodec>
#include <QRegExpValidator>
#include <QStringList>
#include <QString>

QT_BEGIN_NAMESPACE
namespace Ui  class Widget; 
QT_END_NAMESPACE

class Widget : public QWidget

    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();
public slots:
   void  Myping();
private:
    Ui::Widget *ui;
;
#endif // WIDGET_H

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

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)

    ui->setupUi(this);
    //使用正则表达式限制输入
    ui->lineEdit_ip->setValidator(new QRegExpValidator(QRegExp("\\\\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.)3(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\b")));
    connect(ui->pushButton_ip,&QPushButton::clicked,this,&Widget::Myping);


/* bool Widget::Myping()


          QProcess exc;
          QTextCodec *codec = QTextCodec::codecForName("utf-8");
      //  QString cmdstr="ping 192.168.110.179";//ping 192.168.110.179  -n 2 -w 4000
          QString cmdstr=ui->lineEdit_ip->text();
          exc.start(cmdstr);//执行ping
          exc.waitForFinished(-1);//等待ping完成
          QString  outstr=codec->toUnicode(exc.readAll());//获取ping结果
          ui->textBrowser->setText(outstr);

   //返回不等于-1，说明ping结果包含"往返行程的估计时间"字段，则说明ping成功，网络可达;等于-1，表示没有此字段，说明ping不通
          if((outstr.indexOf("往返行程的估计时间"))!=-1)
          
              qDebug("ping通\\n");
          else
          
              qDebug("ping失败\\n");
          



*/
void Widget::Myping()

    qDebug()<<QStringLiteral("开始点击");
    ui->textBrowser->clear();
    ui->textBrowser->setText(QStringLiteral("请等待"));
    ui->textBrowser->update();
    QProcess myProcess(this);
    QString program = "C:/Windows/System32/cmd.exe";
    QStringList arguments;
    QString ipaddr;
    // 正则表达式限制输入

    ipaddr = ui->lineEdit_ip->text();
    //用户输入的内容
    QString message = "ping " + ipaddr;
    //和ping命令拼接，字符串的拼接直接+链接就可
    qDebug()<<message;
    //将拼接后的结果在应用程序输出的位置打印一下
    // 用于占位
    //arguments=ui->lineEdit_ip->setInputMask("000.000.000.000; ");
    //arguments <<"/c" <<"ping www.baidu.com";
    arguments <<"/c" <<message;


    myProcess.start(program,arguments);

    while (myProcess.waitForFinished(100) == false) 
        QByteArray qByteRead = myProcess.readAllStandardOutput();
        if (!qByteRead.isEmpty()) 
            ui->textBrowser->append(QString::fromLocal8Bit(qByteRead));
            repaint();
        
    
    QByteArray qByteRead = myProcess.readAllStandardOutput();
    ui->textBrowser->append(QString::fromLocal8Bit(qByteRead));

    qDebug()<<QString::fromLocal8Bit(qByteRead);
    //输出应用程序输出上
    qDebug()<<"结束点击";




Widget::~Widget()

    delete ui;