Question

android如何获取以太网mac地址

Answer 1

本文讲述无线网和以太网mac地址获取的方法： 1.以太网获取mac地址 因为机顶盒系统是linux内核的，假设ethernet是eth0，那么可以从以下文件中读取相关信息：/sys/class/net/eth0/address方法1： public static String loadFileAsString(String filePath) throws java.io.IOException{ StringBuffer fileData = new StringBuffer(1000); BufferedReader reader = new BufferedReader(new FileReader(filePath)); char[] buf = new char[1024]; int numRead=0; while((numRead=reader.read(buf)) != -1){ String readData = String.valueOf(buf, 0, numRead); fileData.append(readData); } reader.close(); return fileData.toString();}/** Get the STB MacAddress*/public String getMacAddress(){ try { return loadFileAsString("/sys/class/net/eth0/address") .toUpperCase().substring(0, 17); } catch (IOException e) { e.printStackTrace(); return null; }}方法2：NetworkInterface NIC = NetworkInterface.getByName("eth0"); byte[] buf = NIC.getHardwareAddress(); for (int i = 0; i < buf.length; i++) { mac = mac + byteHEX(buf);}if (mac != null && !"".equals(mac)) { }2.wifi获取mac和ip首先要在manifest.xml文件中添加权限： <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>获取mac的代码如下WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE); WifiInfo info = wifi.getConnectionInfo(); return info.getMacAddress();获取Ip的代码public String getLocalIpAddress() { try { for (Enumeration<NetworkInterface> en = NetworkInterface .getNetworkInterfaces(); en.hasMoreElements();) { NetworkInterface intf = en.nextElement(); if (intf.getName().toLowerCase().equals("eth0")) { for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) { InetAddress inetAddress = enumIpAddr.nextElement(); if (!inetAddress.isLoopbackAddress()) { String ipaddress = inetAddress.getHostAddress().toString(); if(!ipaddress.contains("::")){//ipV6的地址 return ipaddress; } } } } else { continue; } } } catch (Exception ex) { Log.e("WifiPreference IpAddress", ex.toString()); } return null; }