1.导入java.net包2.用NetworkInterface类的getByName方法获取第一块网卡对应的NetworkInterface对象3.调用getHardwareAddress方法获取MAC地址。
import java.net.InetAddress;import java.net.NetworkInterface;import java.net.SocketException;import java.net.UnknownHostException;public class MacAddress { public static void main(String[] args) { try { InetAddress address = InetAddress.getLocalHost(); //InetAddress address = InetAddress.getByName("192.168.46.53"); /* * Get NetworkInterface for the current host and then read the * hardware address. */ NetworkInterface ni = NetworkInterface.getByInetAddress(address); if (ni != null) { byte[] mac = ni.getHardwareAddress(); if (mac != null) { /* * Extract each array of mac address and convert it to hexa with the * following format 08-00-27-DC-4A-9E. */ for (int i = 0; i < mac.length; i++) { System.out.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""); } } else { System.out.println("Address doesn't exist or is not accessible."); } } else { System.out.println("Network Interface for the specified address is not found."); } } catch (UnknownHostException e) { e.printStackTrace(); } catch (SocketException e) { e.printStackTrace(); } }}
