Android 获取Mac地址,不同的Android版本各有不同,一下为适配不同Android版本的Mac地址获取方式:代码中都有详细的备注.

import android.content.Context;
import android.content.pm.PackageManager;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.Build;
import android.text.TextUtils;
import android.util.Log;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
import java.io.Reader;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;

public class MacUtils {

    public static String getMacAddr() {
        String mac = "";
        //7.0以上通过IP获取Mac，一下两个方法获取的mac地址不一样
//        mac = getMacAddrByIp();
//        mac = getMachineHardwareAddress();
        mac = getLocalMacAddressFromBusybox();
        return mac;
    }


    /**
     * android 7.0及以上 （1）根据IP地址获取MAC地址
     * 测试设备 3399（7.1系统，有线网卡）
     * 需要权限是 android.permission.INTERNET
     * @return
     */
    private static String getMacAddrByIp() {
        String strMacAddr = null;
        try {
            // 获得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;
    }

    /**
     * 获取移动设备本地IP
     *
     * @return
     */
    private static InetAddress getLocalInetAddress() {
        InetAddress ip = null;
        try {
            // 列举
            Enumeration<NetworkInterface> en_netInterface = NetworkInterface
                    .getNetworkInterfaces();
            while (en_netInterface.hasMoreElements()) {// 是否还有元素
                NetworkInterface ni = (NetworkInterface) en_netInterface
                        .nextElement();// 得到下一个元素
                Enumeration<InetAddress> en_ip = ni.getInetAddresses();// 得到一个ip地址的列举
                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;
    }


    /**
     * 获取本地IP
     *
     * @return
     */
    private static String getLocalIpAddress() {
        try {
            for (Enumeration<NetworkInterface> en = NetworkInterface
                    .getNetworkInterfaces(); en.hasMoreElements(); ) {
                NetworkInterface intf = en.nextElement();
                for (Enumeration<InetAddress> enumIpAddr = intf
                        .getInetAddresses(); enumIpAddr.hasMoreElements(); ) {
                    InetAddress inetAddress = enumIpAddr.nextElement();
                    if (!inetAddress.isLoopbackAddress()) {
                        return inetAddress.getHostAddress().toString();
                    }
                }
            }
        } catch (SocketException ex) {
            ex.printStackTrace();
        }
        return null;
    }

    /**
     * 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
     * 在测试设备能获取到 mac（3399，7.1系统有线网）
     * 需要权限是 android.permission.INTERNET
     * @return
     */
    public 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
     */
    public 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;
    }


    /**
     * android 6.0及以上、7.0以下 获取mac地址
     *
     * @param context
     * @return
     */
    public static String getMacAddress(Context context) {

        // 如果是6.0以下，直接通过wifimanager获取
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
            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;
    }

    /**
     * 6.0 以下方法，需要权限 android.permission.ACCESS_WIFI_STATE
     * 根据wifi信息获取本地mac
     * @param context
     * @return
     */
    public 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();
    }

    //得到有线网卡的MAC地址
    public static String getWireMac(){
        String strMacAddress = null;
        try {
            byte[] b = NetworkInterface.getByName("eth0")
                    .getHardwareAddress();
            StringBuffer buffer = new StringBuffer();
            for (int i = 0; i < b.length; i++) {
                if (i != 0) {
                    buffer.append(':');
                }
                System.out.println("b:"+(b[i]&0xFF));
                String str = Integer.toHexString(b[i] & 0xFF);
                buffer.append(str.length() == 1 ? 0 + str : str);
            }
            strMacAddress = buffer.toString().toUpperCase();
            Log.d("TAG",strMacAddress);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return strMacAddress;
    }

    public static String getMacAddress() {
        String result = "";
        String Mac = "";
        result = callCmd("busybox ifconfig", "HWaddr");

        if (result == null) {
            return "网络出错，请检查网络";
        }
        if (result.length() > 0 && result.contains("HWaddr")) {
            Mac = result.substring(result.indexOf("HWaddr") + 6, result.length() - 1);
            if (Mac.length() > 1) {
                result = Mac.toLowerCase();
            }
        }
        return result.trim();
    }
}

  将获取方法写入一个utils类,调用的时候:区分一下Android的版本:
  ① 6.0以下
  ② 6.0 - 7.0
  ③ 7.0以上

public static String getMacAddress() {
        String macAddr = "";
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M && Build.VERSION.SDK_INT > Build.VERSION_CODES.N) {
            Log.d("getMacAddress","6.0及以上、7.0以下");
            macAddr = MacUtils.getMacAddress(sContext);
        }else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N){
            Log.d("getMacAddress","7.0及以上");
            macAddr = MacUtils.getMachineHardwareAddress();
        }else{
            Log.d("getMacAddress","6.0以下");
            macAddr = MacUtils.getMacAddress0(sContext);
        }
        Log.d("getMacAddress",macAddr);
        return macAddr;
    }