快下班了,现在总结一下如何使用Java代码获取Android移动终端Mac地址:
通过设备开通WiFi连接获取Mac地址是最可取的,代码如下:
/** * 设备开通WiFi连接,通过wifiManager获取Mac地址 * * @author 高焕杰 */ public static String getMacFromWifi(Context context){ ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); State wifiState = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState(); if(wifiState == NetworkInfo.State.CONNECTED){//判断当前是否使用wifi连接 WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); if (!wifiManager.isWifiEnabled()) { //如果当前wifi不可用 wifiManager.setWifiEnabled(true); } WifiInfo wifiInfo = wifiManager.getConnectionInfo(); return wifiInfo.getMacAddress(); } return null; }除了上面这种方法,网上还给出了另外两种方法:
1、通过调用Linux的busybox命令获取Mac地址:
/** * 通过调用Linux的busybox命令获取Mac地址 * * @author 高焕杰 */ private static String getMacFromCallCmd(){ try { String readLine = ""; Process process = Runtime.getRuntime().exec("busybox ifconfig"); BufferedReader bufferedReader = new BufferedReader (new InputStreamReader(process.getInputStream())); while ((readLine = bufferedReader.readLine ()) != null) {//执行命令cmd,只取结果中含有"HWaddr"的这一行 if(readLine.contains("HWaddr")){ return readLine.substring(readLine.indexOf("HWaddr")+6, readLine.length()-1); } } }catch(Exception e) { //如果因设备不支持busybox工具而发生异常。 e.printStackTrace(); } return null; }注意:这种方法在Android Pad中可以准确获取到的Mac地址,但是在Android手机中无法准确获取到。
2、通过查询记录了MAC地址的文件(文件路径:“/proc/net/arp”)获取Mac地址:
/** * 通过查询记录了MAC地址的文件(文件路径:“/proc/net/arp”)获取Mac地址 * * @author 高焕杰 */ private static String getMacFromFile(Context context){ String readLine =""; BufferedReader bufferedReader = null; try { bufferedReader = new BufferedReader(new FileReader(new File("/proc/net/arp"))); int rollIndex = 0; while((readLine = bufferedReader.readLine())!=null){ if(rollIndex == 1){ break; } rollIndex = rollIndex + 1; } } catch (IOException e) { e.printStackTrace(); } finally { if (bufferedReader != null) { try { bufferedReader.close(); } catch (IOException e) { e.printStackTrace(); } } } if(readLine !=null && readLine.length()>1){ String[] subReadLineArray = readLine.split(" "); int rollIndex = 1; for(int i = 0; i < subReadLineArray.length; ++i){ if(!TextUtils.isEmpty(subReadLineArray[i])){ if(rollIndex == 4){ return subReadLineArray[i]; } rollIndex = rollIndex + 1; } } } return null; }注意:无论在Android Pad中还是在Android手机中,这种方法都无法准确获取到Mac地址。
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