Java Mac Address Get getMacAddress()

Description

get Mac Address

License

Open Source License

Declaration

public static String getMacAddress() throws Exception 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;

import java.util.Enumeration;

public class Main {
    public static String getMacAddress() throws Exception {
        NetworkInterface network = NetworkInterface.getByInetAddress(getLocalAddress());

        byte[] mac = network.getHardwareAddress();

        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < mac.length; i++) {
            sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));
        }/*from  ww w  . ja v  a  2s .  c  o  m*/

        return sb.toString();
    }

    public static InetAddress getLocalAddress() throws SocketException {
        Enumeration<NetworkInterface> ifaces = NetworkInterface.getNetworkInterfaces();
        while (ifaces.hasMoreElements()) {
            NetworkInterface iface = ifaces.nextElement();
            Enumeration<InetAddress> addresses = iface.getInetAddresses();

            while (addresses.hasMoreElements()) {
                InetAddress addr = addresses.nextElement();
                if (addr instanceof Inet4Address && !addr.isLoopbackAddress()) {
                    return addr;
                }
            }
        }

        return null;
    }
}

Related

1. getMACAddress()
2. getMacAddress()
3. getMacAddress()
4. getMacAddress()
5. getMacAddress()
6. getMacAddress(String host)
7. getMACAddress(String interfaceName)
8. getMacAddress(String separator)
9. getMacAddressBytes()