Qt5获取网卡/IP等信息

参考网址：http://blog.csdn.net/wjs1033/article/details/22697063

1、环境 Win7x64、Qt5.5.1(x86)、vs2013_ultimate_up5(x86)

　　1.1、?.h / ?.cpp 都保存成“UTF-8 + BOM”格式（这样，源码里面中文/特殊符号，使用中文注释，就不会有 error或warnning了）

　　1.2、?.h / ?.cpp 都保存成“UTF-8 + BOM”格式 的话，qDebug()输出中文的时候 全是乱码...

　　　　?.h / ?.cpp 都保存成“UTF-8” 格式 的话，qDebug()输出中文的时候 小部分是乱码...

　　　　ZC: 暂时 先将 ?.h / ?.cpp 都保存成“UTF-8”格式，以后再研究 这些字符串编码的 中文乱码的事情吧...

2、代码：

　　2.1、?.pro

#-------------------------------------------------
#
# Project created by QtCreator 2016-11-14T16:10:00
#
#-------------------------------------------------

QT       += core gui    \
network

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = NetworkInterfaceZ
TEMPLATE = app

SOURCES += main.cpp\
MainWindow.cpp

HEADERS  += MainWindow.h

FORMS    += MainWindow.ui

　　2.2、MainWindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QHostInfo>

// http://blog.csdn.net/wjs1033/article/details/22697063 
namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
Q_OBJECT

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

private slots:
void on_pbtnMsg01_clicked();

void on_pbtnMsg02_clicked();

void on_pbtnMsg03_clicked();

void on_pbtnMsg04_clicked();

void on_pbtnMsg05_clicked();

private:
Ui::MainWindow *ui;

public slots:
void LookupHostZ(const QHostInfo &_hostInfo);
};

#endif // MAINWINDOW_H

　　2.3、MainWindow.cpp

#include "MainWindow.h"
#include "ui_MainWindow.h"

#include <QNetworkInterface>

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

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

// *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***

// 枚举本机的网络连接并获取其属性
void MainWindow::on_pbtnMsg01_clicked()
{
int i=0, j=0;
QList<QNetworkInterface> networkInterface = QNetworkInterface::allInterfaces();
for (QList<QNetworkInterface>::const_iterator it = networkInterface.constBegin(); it != networkInterface.constEnd(); ++it)
{
qDebug() << "[" << i << "] : " << (*it).name();
qDebug() << "  " << (*it).humanReadableName();
qDebug() << "  " << (*it).hardwareAddress();

//获取连接地址列表
QList<QNetworkAddressEntry> addressEntriesList = (*it).addressEntries();
for (QList<QNetworkAddressEntry>::const_iterator jIt = addressEntriesList.constBegin(); jIt != addressEntriesList.constEnd(); ++jIt)
{
qDebug() << "\t(" << j << ") :";
//输出 ip
qDebug() << "\t\tIP : " <<(*jIt).ip().toString();
//输出 netmask
qDebug() << "\t\tnetmask(子网掩码) : " << (*jIt).netmask().toString();
qDebug() << "\t\tBroadcast(广播地址) : "<< (*jIt).broadcast().toString();
qDebug() << "";
j ++;
}
i ++;
}
}

// 只枚举ip地址的简洁方式
void MainWindow::on_pbtnMsg02_clicked()
{
QList<QHostAddress> list = QNetworkInterface::allAddresses();
{
foreach(QHostAddress address,list)
{
if(address.protocol() == QAbstractSocket::IPv4Protocol)
qDebug() << address.toString();
}
}
}

// 获取本机主机名 及 IPv4地址
void MainWindow::on_pbtnMsg03_clicked()
{
QString strLocalHostName = QHostInfo::localHostName(); // 获取主机名
qDebug() << "本地主机名 : " << strLocalHostName;

QHostInfo info = QHostInfo::fromName(strLocalHostName);// 根据上边获得的主机名来获取本机的信息
// QHostInfo的address函数获取本机ip地址
// QHostAddress类是管理ip地址的类，所有的ip都归这个类管理。
foreach (QHostAddress address, info.addresses())
{
if(address.protocol() == QAbstractSocket::IPv4Protocol)//只取ipv4协议的地址
qDebug() << "IP(IPv4Protocol) ： " << address.toString();
}
}

// 通过 主机名 获取IP地址
void MainWindow::on_pbtnMsg04_clicked()
{
// 以主机名获取ip (会调用slot函数LookupHostZ)
QHostInfo::lookupHost("www.baidu.com", this, SLOT(LookupHostZ(QHostInfo)));
}

// 通过IP地址 反向查询 主机名
void MainWindow::on_pbtnMsg05_clicked()
{
// 通过ip地址获取主机名 (会调用slot函数LookupHostZ)
QHostInfo::lookupHost("192.168.1.201", this, SLOT(LookupHostZ(QHostInfo)));
}

// 响应QHostInfo::lookupHost(...) 的slot函数
void MainWindow::LookupHostZ(const QHostInfo &_hostInfo)
{
// 输出IPv4的IP地址
foreach (QHostAddress address, _hostInfo.addresses())
{
if(address.protocol() == QAbstractSocket::IPv4Protocol)//只取ipv4协议的地址
qDebug() << "LookupHostZ - IP(IPv4Protocol) : " << address.toString();
}

// 输出主机名
qDebug() << _hostInfo.hostName();
}

　　2.4、MainWindow.ui

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>518</width>
<height>354</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralWidget">
<widget class="QPushButton" name="pbtnMsg01">
<property name="geometry">
<rect>
<x>20</x>
<y>10</y>
<width>211</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>枚举本机的网络连接并获取其属性</string>
</property>
</widget>
<widget class="QPushButton" name="pbtnMsg02">
<property name="geometry">
<rect>
<x>20</x>
<y>40</y>
<width>211</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>只枚举ip地址的简洁方式</string>
</property>
</widget>
<widget class="QPushButton" name="pbtnMsg03">
<property name="geometry">
<rect>
<x>20</x>
<y>90</y>
<width>211</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>获取本机主机名及IPv4地址</string>
</property>
</widget>
<widget class="QPushButton" name="pbtnMsg04">
<property name="geometry">
<rect>
<x>20</x>
<y>140</y>
<width>211</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>通过主机名获取IP地址</string>
</property>
</widget>
<widget class="QPushButton" name="pbtnMsg05">
<property name="geometry">
<rect>
<x>20</x>
<y>170</y>
<width>211</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>通过IP地址反向查询主机名</string>
</property>
</widget>
</widget>
</widget>
<layoutdefault spacing="6" margin="11"/>
<resources/>
<connections/>
</ui>

　　2.5、界面截图



3、程序运行输出：

　　3.1、枚举本机的网络连接并获取其属性

[ 0 ] :  "{7558E85A-8386-4A5F-A5BF-4A4F22792AA4}"
"无线网络连接"
"34:23:87:61:DF:31"
( 0 ) :
IP :  "fe80::a4d3:7dfd:62cf:558d%14"
netmask(子网掩码) :  "ffff:ffff:ffff:ffff::"
Broadcast(广播地址) :  ""

( 1 ) :
IP :  "169.254.85.141"
netmask(子网掩码) :  ""
Broadcast(广播地址) :  ""

[ 1 ] :  "{3B25081D-362E-42E8-8FDF-B6D5A99824CF}"
"本地连接"
"28:D2:44:40:5B:C1"
( 2 ) :
IP :  "fe80::e58e:6f0e:df37:e8ed%12"
netmask(子网掩码) :  "ffff:ffff:ffff:ffff::"
Broadcast(广播地址) :  ""

( 3 ) :
IP :  "192.168.1.233"
netmask(子网掩码) :  "255.255.255.0"
Broadcast(广播地址) :  "192.168.1.255"

[ 2 ] :  "{B5D6033F-8002-4428-80A3-1974993AF12A}"
"Bluetooth 网络连接"
"34:23:87:61:DF:32"
( 4 ) :
IP :  "fe80::e0b7:f552:784e:9fe%11"
netmask(子网掩码) :  "ffff:ffff:ffff:ffff::"
Broadcast(广播地址) :  ""

( 5 ) :
IP :  "169.254.9.254"
netmask(子网掩码) :  ""
Broadcast(广播地址) :  ""

[ 3 ] :  "{8376C30F-73E1-4029-B465-AB5449D3812E}"
"VMware Network Adapter VMnet1"
"00:50:56:C0:00:01"
( 6 ) :
IP :  "fe80::29c7:6a:97d7:bb0f%19"
netmask(子网掩码) :  "ffff:ffff:ffff:ffff::"
Broadcast(广播地址) :  ""

( 7 ) :
IP :  "192.168.131.1"
netmask(子网掩码) :  "255.255.255.0"
Broadcast(广播地址) :  "192.168.131.255"

[ 4 ] :  "{1D0B26ED-F9CB-43A4-AD64-202A6D727BFA}"
"VMware Network Adapter VMnet8"
"00:50:56:C0:00:08"
( 8 ) :
IP :  "fe80::a567:53d5:a0b5:cd63%20"
netmask(子网掩码) :  "ffff:ffff:ffff:ffff::"
Broadcast(广播地址) :  ""

( 9 ) :
IP :  "192.168.181.1"
netmask(子网掩码) :  "255.255.255.0"
Broadcast(广播地址) :  "192.168.181.255"

[ 5 ] :  "{846EE342-7039-11DE-9D20-806E6F6E6963}"
"Loopback Pseudo-Interface 1"
""
( 10 ) :
IP :  "::1"
netmask(子网掩码) :  "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"
Broadcast(广播地址) :  ""

( 11 ) :
IP :  "127.0.0.1"
netmask(子网掩码) :  ""
Broadcast(广播地址) :  ""

[ 6 ] :  "{DA5C1007-9FC1-4637-AFBF-CFC713356DDA}"
"isatap.{3B25081D-362E-42E8-8FDF-B6D5A99824CF}"
"00:00:00:00:00:00:00:E0"
( 12 ) :
IP :  "fe80::5efe:c0a8:1e9%15"
netmask(子网掩码) :  "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"
Broadcast(广播地址) :  ""

[ 7 ] :  "{B6A0553B-7196-4747-87B8-D1307AA54F7E}"
"Teredo Tunneling Pseudo-Interface"
"00:00:00:00:00:00:00:E0"
( 13 ) :
IP :  "fe80::100:7f:fffe%13"
netmask(子网掩码) :  "ffff:ffff:ffff:ffff::"
Broadcast(广播地址) :  ""

[ 8 ] :  "{B61A7FDB-E0C1-42CC-A324-54F35789A245}"
"isatap.{8376C30F-73E1-4029-B465-AB5449D3812E}"
"00:00:00:00:00:00:00:E0"
( 14 ) :
IP :  "fe80::5efe:c0a8:8301%16"
netmask(子网掩码) :  "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"
Broadcast(广播地址) :  ""

[ 9 ] :  "{6B68472C-AA56-44A8-A9AE-FFEF1A4ED978}"
"isatap.{7558E85A-8386-4A5F-A5BF-4A4F22792AA4}"
"00:00:00:00:00:00:00:E0"
[ 10 ] :  "{BAAD8784-EFFA-4C76-AE9E-8074A9965DBA}"
"isatap.{B5D6033F-8002-4428-80A3-1974993AF12A}"
"00:00:00:00:00:00:00:E0"
[ 11 ] :  "{7F3F01D3-A615-4238-8453-632DCB4C13C6}"
"isatap.{1D0B26ED-F9CB-43A4-AD64-202A6D727BFA}"
"00:00:00:00:00:00:00:E0"
( 15 ) :
IP :  "fe80::5efe:c0a8:b501%21"
netmask(子网掩码) :  "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"
Broadcast(广播地址) :  ""

　　3.2、只枚举ip地址的简洁方式

"169.254.85.141"
"192.168.1.233"
"169.254.9.254"
"192.168.131.1"
"192.168.181.1"
"127.0.0.1"

　　3.3、获取本机主机名 及 IPv4地址 (这里的 控制台输出 中文会有乱码)

"本地主机???: " "33-PC"
IP(IPv4Protocol) :  "192.168.1.233"
IP(IPv4Protocol) :  "192.168.131.1"
IP(IPv4Protocol) :  "192.168.181.1"

　　3.4、通过 主机名 获取IP地址

LookupHostZ - IP(IPv4Protocol) :  "180.97.33.108"
LookupHostZ - IP(IPv4Protocol) :  "180.97.33.107"
"www.baidu.com"

　　3.5、通过IP地址 反向查询 主机名 (这个执行的时候，用时较长)

LookupHostZ - IP(IPv4Protocol) :  "192.168.1.201"
"ZHEJIANG001"

　　3.6、

4、获取本机的 第一个IPv4地址的字符串 (Windows下)

　　传入参数：_strNetworkInterfaceHumanReadableName : 网络接口卡的名称(类似"无线网络连接"、"本地连接"等)

QString Widget::getIP(QString _strNetworkInterfaceHumanReadableName)
{
//QString str01 = QString::fromLocal8Bit("本地连接");

QList<QNetworkInterface> networkInterface = QNetworkInterface::allInterfaces();
foreach (QNetworkInterface intf, networkInterface)
{
bool b = false;
if (_strNetworkInterfaceHumanReadableName == NULL)
b = true;
else
{
QString str = intf.humanReadableName();
if (str.startsWith(_strNetworkInterfaceHumanReadableName, Qt::CaseInsensitive))
b = true;
}

if (b)
{
QList<QNetworkAddressEntry> listNAE = intf.addressEntries();
foreach (QNetworkAddressEntry nae, listNAE)
{
QHostAddress ha = nae.ip();
if (ha.protocol() == QAbstractSocket::IPv4Protocol)
return ha.toString();
}
}
}
return NULL;
}

5、