本文从网上搜索资料而来，记录一下，如有巧合，莫怪。
不说了，直接上代码，记录一下，希望可以帮到正在困扰的朋友。可以直接拷贝使用。（好喜欢拿来主义，哈哈）
public class MacUtils {
public static String getMac(Context context) {
String strMac = null;
try {
if (Build.VERSION.SDK_INT < 6) { // 6.0 以下
strMac = getLocalMacAddressFromWifiInfo(context);
return strMac;
} else if (Build.VERSION.SDK_INT < 7 && Build.VERSION.SDK_INT >= 6) { // 6.0以上7.0以下
strMac = getMacAddress(context);
return strMac;
} else if (Build.VERSION.SDK_INT >= 7) { // 7.0及以上
if (!TextUtils.isEmpty(getMacAddress(context))) {
strMac = getMacAddress(context);
return strMac;
} else if (!TextUtils.isEmpty(getMachineHardwareAddress())) {
strMac = getMachineHardwareAddress();
return strMac;
} else {
strMac = getLocalMacAddressFromBusybox();
return strMac;
}
}
} catch (Exception e) {
e.printStackTrace();
}
return "02:00:00:00:00:00";
}
/**
* 根据wifi信息获取本地mac
* @param context
* @return
*/
private static String getLocalMacAddressFromWifiInfo(Context context){
WifiManager wifi = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
WifiInfo winfo = wifi.getConnectionInfo();
String mac = winfo.getMacAddress();
return mac;
}
/**
* android 6.0及以上、7.0以下 获取mac地址
*
* @param context
* @return
*/
private static String getMacAddress(Context context) {
// 如果是6.0以下，直接通过wifimanager获取
if (Build.VERSION.SDK_INT < 6) {
String macAddress0 = getMacAddress0(context);
if (!TextUtils.isEmpty(macAddress0)) {
return macAddress0;
}
}
String str = "";
String macSerial = "";
try {
Process pp = Runtime.getRuntime().exec(
"cat /sys/class/net/wlan0/address");
InputStreamReader ir = new InputStreamReader(pp.getInputStream());
LineNumberReader input = new LineNumberReader(ir);
for (; null != str; ) {
str = input.readLine();
if (str != null) {
macSerial = str.trim();// 去空格
break;
}
}
} catch (Exception ex) {
Log.e("----->" + "NetInfoManager", "getMacAddress:" + ex.toString());
}
if (macSerial == null || "".equals(macSerial)) {
try {
return loadFileAsString("/sys/class/net/eth0/address")
.toUpperCase().substring(0, 17);
} catch (Exception e) {
e.printStackTrace();
Log.e("----->" + "NetInfoManager",
"getMacAddress:" + e.toString());
}
}
return macSerial;
}
private static String getMacAddress0(Context context) {
if (isAccessWifiStateAuthorized(context)) {
WifiManager wifiMgr = (WifiManager) context
.getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo = null;
try {
wifiInfo = wifiMgr.getConnectionInfo();
return wifiInfo.getMacAddress();
} catch (Exception e) {
Log.e("----->" + "NetInfoManager",
"getMacAddress0:" + e.toString());
}
}
return "";
}
/**
* Check whether accessing wifi state is permitted
*
* @param context
* @return
*/
private static boolean isAccessWifiStateAuthorized(Context context) {
if (PackageManager.PERMISSION_GRANTED == context
.checkCallingOrSelfPermission("android.permission.ACCESS_WIFI_STATE")) {
Log.e("----->" + "NetInfoManager", "isAccessWifiStateAuthorized:"
+ "access wifi state is enabled");
return true;
} else
return false;
}
private static String loadFileAsString(String fileName) throws Exception {
FileReader reader = new FileReader(fileName);
String text = loadReaderAsString(reader);
reader.close();
return text;
}
private static String loadReaderAsString(Reader reader) throws Exception {
StringBuilder builder = new StringBuilder();
char[] buffer = new char[4096];
int readLength = reader.read(buffer);
while (readLength >= 0) {
builder.append(buffer, 0, readLength);
readLength = reader.read(buffer);
}
return builder.toString();
}
/**
* android 7.0及以上 （2）扫描各个网络接口获取mac地址
*
*/
/**
* 获取设备HardwareAddress地址
*
* @return
*/
private static String getMachineHardwareAddress() {
Enumeration<NetworkInterface> interfaces = null;
try {
interfaces = NetworkInterface.getNetworkInterfaces();
} catch (SocketException e) {
e.printStackTrace();
}
String hardWareAddress = null;
NetworkInterface iF = null;
if (interfaces == null) {
return null;
}
while (interfaces.hasMoreElements()) {
iF = interfaces.nextElement();
try {
hardWareAddress = bytesToString(iF.getHardwareAddress());
if (hardWareAddress != null)
break;
} catch (SocketException e) {
e.printStackTrace();
}
}
return hardWareAddress;
}
/***
* byte转为String
*
* @param bytes
* @return
*/
private static String bytesToString(byte[] bytes) {
if (bytes == null || bytes.length == 0) {
return null;
}
StringBuilder buf = new StringBuilder();
for (byte b : bytes) {
buf.append(String.format("%02X:", b));
}
if (buf.length() > 0) {
buf.deleteCharAt(buf.length() - 1);
}
return buf.toString();
}
/**
* android 7.0及以上 （3）通过busybox获取本地存储的mac地址
*
*/
/**
* 根据busybox获取本地Mac
*
* @return
*/
private static String getLocalMacAddressFromBusybox() {
String result = "";
String Mac = "";
result = callCmd("busybox ifconfig", "HWaddr");
// 如果返回的result == null，则说明网络不可取
if (result == null) {
return "网络异常";
}
// 对该行数据进行解析
// 例如：eth0 Link encap:Ethernet HWaddr 00:16:E8:3E:DF:67
if (result.length() > 0 && result.contains("HWaddr") == true) {
Mac = result.substring(result.indexOf("HWaddr") + 6,
result.length() - 1);
result = Mac;
}
return result;
}
private static String callCmd(String cmd, String filter) {
String result = "";
String line = "";
try {
Process proc = Runtime.getRuntime().exec(cmd);
InputStreamReader is = new InputStreamReader(proc.getInputStream());
BufferedReader br = new BufferedReader(is);
while ((line = br.readLine()) != null
&& line.contains(filter) == false) {
result += line;
}
result = line;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
}
