mac转ip代码
时间: 2023-07-30 19:10:21 浏览: 49
以下是使用Python代码将Mac地址转换为IP地址的示例:
```python
import subprocess
def mac_to_ip(mac_address):
# 使用arp命令查找Mac地址对应的IP地址
output = subprocess.check_output(['arp', '-a'])
for line in output.splitlines():
if mac_address in line:
return line.split()[0]
# 如果未找到对应的IP地址,则返回空字符串
return ''
# 示例用法
mac_address = '00:11:22:33:44:55'
ip_address = mac_to_ip(mac_address)
print('Mac地址 {} 对应的IP地址为 {}'.format(mac_address, ip_address))
```
在上述示例中,我们使用了Python的subprocess模块来执行arp命令,并解析命令输出来查找对应的IP地址。如果找到了对应的IP地址,则返回该地址;否则返回空字符串。需要注意的是,该方法只适用于同一网络内的设备,且需要有足够的权限来执行arp命令。
相关问题
QT实现局域网IP扫描代码,并输出在线IP的MAC地址
以下是一个简单的基于Qt的局域网IP扫描代码示例,可以实现扫描在线IP并输出其MAC地址。该代码使用了Qt的网络模块,其中包括了QNetworkInterface和QNetworkAddressEntry等类。
```cpp
#include <QCoreApplication>
#include <QNetworkInterface>
#include <QHostInfo>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QJsonObject>
#include <QJsonDocument>
#include <QTimer>
class IPScanner : public QObject
{
Q_OBJECT
public:
IPScanner(QObject* parent = nullptr)
: QObject(parent)
{
connect(&m_manager, &QNetworkAccessManager::finished, this, &IPScanner::onRequestFinished);
m_timer.setSingleShot(true);
connect(&m_timer, &QTimer::timeout, this, &IPScanner::onTimerTimeout);
}
void start()
{
m_interfaces = QNetworkInterface::allInterfaces();
m_currentInterfaceIndex = -1;
m_timer.start(0);
}
private slots:
void onTimerTimeout()
{
m_currentInterfaceIndex++;
if (m_currentInterfaceIndex >= m_interfaces.size()) {
// 扫描完成
emit finished();
return;
}
QNetworkInterface interface = m_interfaces[m_currentInterfaceIndex];
QList<QNetworkAddressEntry> entries = interface.addressEntries();
for (auto entry : entries) {
if (entry.ip().protocol() == QAbstractSocket::IPv4Protocol) {
QString ip = entry.ip().toString();
QString subnetMask = entry.netmask().toString();
QStringList ipParts = ip.split(".");
QStringList subnetMaskParts = subnetMask.split(".");
QStringList networkParts;
for (int i = 0; i < 4; i++) {
networkParts.append(QString::number(ipParts[i].toInt() & subnetMaskParts[i].toInt()));
}
QString network = networkParts.join(".");
for (int i = 1; i < 255; i++) {
QString testIp = QString("%1.%2").arg(network).arg(i);
if (testIp != ip) {
QNetworkRequest request(QUrl(QString("http://%1:8080/").arg(testIp)));
m_manager.get(request);
}
}
}
}
m_timer.start(1000); // 每个接口扫描1秒钟
}
void onRequestFinished(QNetworkReply* reply)
{
if (reply->error() == QNetworkReply::NoError) {
QByteArray data = reply->readAll();
QJsonDocument doc = QJsonDocument::fromJson(data);
if (!doc.isNull() && doc.isObject()) {
QJsonObject obj = doc.object();
QString mac = obj.value("mac").toString();
if (!mac.isEmpty()) {
QString ip = reply->url().host();
emit ipFound(ip, mac);
}
}
}
reply->deleteLater();
}
signals:
void ipFound(const QString& ip, const QString& mac);
void finished();
private:
QList<QNetworkInterface> m_interfaces;
int m_currentInterfaceIndex;
QNetworkAccessManager m_manager;
QTimer m_timer;
};
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
IPScanner scanner;
QObject::connect(&scanner, &IPScanner::ipFound, [](const QString& ip, const QString& mac) {
qDebug() << ip << mac;
});
QObject::connect(&scanner, &IPScanner::finished, &a, &QCoreApplication::quit);
scanner.start();
return a.exec();
}
#include "main.moc"
```
上述代码通过遍历所有网络接口,获取其IP地址和子网掩码,然后计算出其所在的网络地址。然后,对该网络地址下的所有IP进行扫描,使用QNetworkAccessManager发送HTTP请求并等待响应。如果响应中包含MAC地址,则表示该IP在线并且可用,将其IP和MAC地址通过信号发送出去。
通过ip获取mac地址
在Java中,可以通过IP地址获取对应设备的MAC地址,代码如下:
```java
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
public class GetMacAddress {
public static void main(String[] args) {
try {
InetAddress ipAddress = InetAddress.getByName("192.168.1.100");
NetworkInterface networkInterface = NetworkInterface.getByInetAddress(ipAddress);
byte[] macAddressBytes = networkInterface.getHardwareAddress();
StringBuilder stringBuilder = new StringBuilder();
for (int i = 0; i < macAddressBytes.length; i++) {
stringBuilder.append(String.format("%02X%s", macAddressBytes[i], (i < macAddressBytes.length - 1) ? "-" : ""));
}
System.out.println("MAC Address: " + stringBuilder.toString());
} catch (UnknownHostException | SocketException e) {
e.printStackTrace();
}
}
}
```
这段代码首先通过指定的IP地址获取对应的InetAddress对象,然后通过它获取对应的NetworkInterface对象,再从NetworkInterface对象中获取MAC地址的字节数组,最后将字节数组转换为十六进制格式的字符串表示MAC地址。需要注意的是,如果指定的IP地址不存在或者无法连接,会抛出UnknownHostException异常;如果指定的IP地址对应的设备没有MAC地址,会抛出SocketException异常。