android6.0获取mac地址

public static String getMac() {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) {ex.printStackTrace();
    }if (macSerial == null || "".equals(macSerial)) {try {return loadFileAsString("/sys/class/net/eth0/address").toUpperCase().substring(0, 17);
        } catch (Exception e) {e.printStackTrace();

        }}return macSerial;
}

现在用的这个，6.0的可以获取到mac的wifi地址

/**  * 获取手机的WLAN MAC地址 通用  *  * @return  */  public static String getMacAddr() {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 "";
            }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) {}return "02:00:00:00:00:00";
}