QNetwork通过QNetworkAccessManager扫描Wi-Fi [英] Qt Scanning Wi-Fi by QNetworkAccessManager

问题描述

欢迎，我在扫描Wi-Fi以获得Wi-Fi中的所有可用连接时遇到问题.到目前为止，我已经编写了以下代码:

  #include< QCoreApplication>#include< QNetworkConfigurationManager>#include< QNetworkConfiguration>#include< QDebug>#include< QNetworkSession>int main(int argc，char * argv []){QCoreApplication a(argc，argv);QNetworkConfigurationManager ncm;QNetworkConfiguration cfg;QNetworkConfiguration :: StateFlags标志；int count = QNetworkConfiguration :: Active;qDebug()<<"Wi-Fi中的可用连接数量:"<<数数;qDebug()<<ncm.allConfigurations(flags = 0);返回a.exec();} 

我在显示allConfigurations时遇到问题.我已阅读文档

.pro文件:

  QT + =核心GUI网络大于(QT_MAJOR_VERSION，4):QT + =小部件目标= WiFi模板=应用来源+ = main.cpp \主窗口标题+ = mainwindow.h形式+ = mainwindow.ui 

.cpp文件:

  #include"mainwindow.h"#include"ui_mainwindow.h"MainWindow :: MainWindow(QWidget * parent):QMainWindow(父级)，ui(新的Ui :: MainWindow){ui-> setupUi(this);findTimer =新的QTimer();findTimer-> setInterval(1000);connect(findTimer，& QTimer :: timeout，this，& MainWindow :: findActiveWirelesses);findTimer-> start();foundCount = 0;ui-> treeWidgetWiFis-> setColumnWidth(0,50);ui-> treeWidgetWiFis-> setColumnWidth(1,200);findActiveWirelesses();}MainWindow ::〜MainWindow(){删除ui;}无效MainWindow :: findActiveWirelesses(){QNetworkConfigurationManager ncm;netcfgList = ncm.allConfigurations();WiFisList.clear();用于(自动& x:netcfgList){如果(x.bearerType()== QNetworkConfiguration :: BearerWLAN){if(x.name()==")WiFisList<<未知(其他网络)"；别的WiFisList<<x.name();qDebug()<<x.type();}}for(int i = 0; i< WiFisList.size(); i ++){布尔存在=假;QTreeWidgetItem * item =新的QTreeWidgetItem();for(int j = 0; j< ui-> treeWidgetWiFis-> topLevelItemCount(); j ++){QTreeWidgetItem * index = ui-> treeWidgetWiFis-> topLevelItem(j);QString str =索引->文本(1);if(str == WiFisList [i]){存在=真;休息;}}如果(！存在){item-> setTextAlignment(0，Qt :: AlignVCenter);item-> setTextAlignment(1，Qt :: AlignHCenter);item-> setText(0，QString :: number(++ foundCount));item-> setText(1，WiFisList [i]);ui-> treeWidgetWiFis-> addTopLevelItem(item);}}} 

.h文件:

  #ifndef MAINWINDOW_H#define MAINWINDOW_H#include< QMainWindow>#include< QTimer>#include< QList>#include< QInputDialog>#include< QStandardItem>#include< QStandardItemModel>#include< QNetworkConfiguration>#include< QNetworkConfigurationManager>#include< QNetworkSession>命名空间Ui {类MainWindow;}类MainWindow:公共QMainWindow{Q_OBJECT上市:显式MainWindow(QWidget * parent = 0);〜MainWindow();int foundCount;QNetworkConfiguration netcfg;QStringList WiFisList;QList< QNetworkConfiguration>netcfgList;公共插槽:void findActiveWirelesses();私人的:Ui :: MainWindow * ui;QTimer * findTimer;QStandardItemModel * listModel;QNetworkSession *会话；};#endif//MAINWINDOW_H 

Welcome I have a problem with scanning Wi-Fi to get all available connecting in Wi-Fi. I have writed so far this code:

#include <QCoreApplication>
#include <QNetworkConfigurationManager>
#include <QNetworkConfiguration>
#include <QDebug>
#include <QNetworkSession>

int main(int argc, char *argv[])

{
    QCoreApplication a(argc, argv);
    QNetworkConfigurationManager ncm;
    QNetworkConfiguration cfg;
    QNetworkConfiguration::StateFlags flags;

    int count = QNetworkConfiguration::Active;

   qDebug() << "Amount available connect in Wi-Fi :" << count;

   qDebug() << ncm.allConfigurations(flags = 0);

   return a.exec();

}

I have a problem with shows allConfigurations. I have read documentation Qt Network Configuration Manager but I do not know how to do that.

解决方案

Scanning Wi-Fi using QNetworkAccessManager.

I use QNetworkConfigurationManager class to get all WiFi s availables and show all of them into QTreeWidget.

QNetworkConfigurationManager ncm; netcfgList = ncm.allConfigurations();

.pro file:

QT       += core gui network

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = WiFi
TEMPLATE = app


SOURCES += main.cpp\
        mainwindow.cpp

HEADERS  += mainwindow.h

FORMS    += mainwindow.ui

.cpp file:

#include "mainwindow.h"
#include "ui_mainwindow.h"

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

    findTimer = new QTimer();
    findTimer->setInterval(1000);
    connect(findTimer,&QTimer::timeout,this,&MainWindow::findActiveWirelesses);
    findTimer->start();
    foundCount = 0;
    ui->treeWidgetWiFis->setColumnWidth(0,50);
    ui->treeWidgetWiFis->setColumnWidth(1,200);
    findActiveWirelesses();
}

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

void MainWindow::findActiveWirelesses()
{
    QNetworkConfigurationManager ncm;
    netcfgList = ncm.allConfigurations();
    WiFisList.clear();
    for (auto &x : netcfgList)
    {
        if (x.bearerType() == QNetworkConfiguration::BearerWLAN)
        {
            if(x.name() == "")
                WiFisList << "Unknown(Other Network)";
            else
                WiFisList << x.name();

            qDebug() << x.type();
        }
    }
    for(int i=0; i<WiFisList.size(); i++)
    {
        bool exist = false;
        QTreeWidgetItem * item = new QTreeWidgetItem();
        for(int j=0; j<ui->treeWidgetWiFis->topLevelItemCount(); j++)
        {
            QTreeWidgetItem *index = ui->treeWidgetWiFis->topLevelItem(j);
            QString str = index->text(1);
            if(str == WiFisList[i])
            {
                exist = true;
                break;
            }
        }
        if(!exist)
        {
            item->setTextAlignment(0,Qt::AlignVCenter);
            item->setTextAlignment(1,Qt::AlignHCenter);
            item->setText(0,QString::number(++foundCount));
            item->setText(1,WiFisList[i]);
            ui->treeWidgetWiFis->addTopLevelItem(item);
        }
    }
}

.h file:

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QTimer>
#include <QList>
#include <QInputDialog>
#include <QStandardItem>
#include <QStandardItemModel>
#include <QNetworkConfiguration>
#include <QNetworkConfigurationManager>
#include <QNetworkSession>

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();

    int foundCount;
    QNetworkConfiguration netcfg;
    QStringList WiFisList;
    QList<QNetworkConfiguration> netcfgList;

public slots:
    void findActiveWirelesses();


private:
    Ui::MainWindow *ui;
    QTimer *findTimer;
    QStandardItemModel* listModel;
    QNetworkSession *session;
};

#endif // MAINWINDOW_H

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