这个代码包含了以前常见的用Runtime实现的方法,已经使用JDK1.6新特性实现的方法。
- import java.io.BufferedReader;
- import java.io.InputStreamReader;
- import java.net.NetworkInterface;
- import java.util.Enumeration;
- /**
- * JDK6新特性,JAVA获得机器MAC地址的方法
- *
- * @author 老紫竹(Java世纪网,java2000.net)
- */
- public class Test {
- // 返回一个字节的十六进制字符串
- static String hexByte(byte b) {
- String s = "000000" + Integer.toHexString(b);
- return s.substring(s.length() - 2);
- }
- public static void main(String[] args) throws Exception {
- System.out.println("本机器的所有的网卡MAC发下:");
- getMacOnWindow();
- getMac();
- }
- /**
- * JDK1.6新特性获取网卡MAC地址
- */
- public static void getMac() {
- try {
- Enumeration<NetworkInterface> el = NetworkInterface.getNetworkInterfaces();
- while (el.hasMoreElements()) {
- byte[] mac = el.nextElement().getHardwareAddress();
- if (mac == null)
- continue;
- StringBuilder builder = new StringBuilder();
- for (byte b : mac) {
- builder.append(hexByte(b));
- builder.append("-");
- }
- builder.deleteCharAt(builder.length() - 1);
- System.out.println(builder);
- }
- } catch (Exception exception) {
- exception.printStackTrace();
- }
- }
- /**
- * 原始的获取网卡MAC地址
- */
- public static void getMacOnWindow() {
- try {
- String mac = null;
- Process process = Runtime.getRuntime().exec("ipconfig /all");
- BufferedReader buffer = new BufferedReader(new InputStreamReader(process.getInputStream()));
- for (String line = buffer.readLine(); line != null; line = buffer.readLine()) {
- int index = line.indexOf("Physical Address");
- if (index <= 0) {
- continue;
- }
- mac = line.substring(index + 36);
- break;
- }
- buffer.close();
- process.waitFor();
- System.out.println(mac);
- } catch (Exception exception) {
- exception.printStackTrace();
- }
- }
- }