/** * 通過WiFiManager獲取mac地址 * @param context * @return */ private static String tryGetWifiMac(Context context) { WifiManager wm = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE); WifiInfo wi = wm.getConnectionInfo(); if (wi == null || wi.getMacAddress() == null) {  return null; } if ("02:00:00:00:00:00".equals(wi.getMacAddress().trim())) {  return null; } else {  return wi.getMacAddress().trim(); } }

/** * 根據IP地址獲取MAC地址 * @return */ private static String getLocalMacAddressFromIp() { String strMacAddr = null; try {  //獲得IpD地址  InetAddress ip = getLocalInetAddress();  byte[] b = NetworkInterface.getByInetAddress(ip).getHardwareAddress();  StringBuffer buffer = new StringBuffer();  for (int i = 0; i < b.length; i++) {  if (i != 0) {   buffer.append(':');  }  String str = Integer.toHexString(b[i] & 0xFF);  buffer.append(str.length() == 1 ? 0 + str : str);  }  strMacAddr = buffer.toString().toUpperCase(); } catch (Exception e) { } return strMacAddr; }/** * 獲取移動設備本地IP * @return */ private static InetAddress getLocalInetAddress() { InetAddress ip = null; try {  //列舉  Enumeration<NetworkInterface> en_netInterface = NetworkInterface.getNetworkInterfaces();  while (en_netInterface.hasMoreElements()) {//是否還有元素  NetworkInterface ni = (NetworkInterface) en_netInterface.nextElement();//得到下一個元素  Enumeration<InetAddress> en_ip = ni.getInetAddresses();//得到一個ip地址的列舉  while (en_ip.hasMoreElements()) {   ip = en_ip.nextElement();   if (!ip.isLoopbackAddress() && ip.getHostAddress().indexOf(":") == -1)   break;   else   ip = null;  }  if (ip != null) {   break;  }  } } catch (SocketException e) {  e.printStackTrace(); } return ip; }

 /** * 通過網絡接口取 * @return */ private static String getNewMac() { try {  List<NetworkInterface> all = Collections.list(NetworkInterface.getNetworkInterfaces());  for (NetworkInterface nif : all) {  if (!nif.getName().equalsIgnoreCase("wlan0")) continue;  byte[] macBytes = nif.getHardwareAddress();  if (macBytes == null) {   return null;  }  StringBuilder res1 = new StringBuilder();  for (byte b : macBytes) {   res1.append(String.format("%02X:", b));  }   if (res1.length() > 0) {   res1.deleteCharAt(res1.length() - 1);  }  return res1.toString();  } } catch (Exception ex) {  ex.printStackTrace(); } return null; }