1. 获取局域网ip和mac（如果电脑没有直接连接外网），否则获取公网ip

2. 通过第三放获取公网ip

public class NetworkUtils {/*** 获取本地IP列表（针对多网卡情况）* @return*/public static Map<String, Object> getLocalInetMac() {Map<String, Object> ipMacInfo = null;try {Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();while (networkInterfaces.hasMoreElements()) {NetworkInterface networkInterface = networkInterfaces.nextElement();Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();while (inetAddresses.hasMoreElements()) {InetAddress inetAddress = inetAddresses.nextElement();ipMacInfo = pickInetAddress(inetAddress, networkInterface);if (ipMacInfo != null) {Log.e("IP-MAC-1",ipMacInfo );return ipMacInfo;}}}} catch (SocketException e) {e.printStackTrace();}return null;}private static Map<String, Object> pickInetAddress(InetAddress inetAddress,NetworkInterface ni) {try {String name = ni.getDisplayName();if (name.contains("Adapter")|| name.contains("Virtual") || name.contains("VMnet") || name.contains("#")) {return null;}if (ni.isVirtual() || !ni.isUp() || !ni.supportsMulticast()) {return null;}if (inetAddress.isSiteLocalAddress()) {Formatter formatter = new Formatter();String sMAC = null;byte[] macBuf = ni.getHardwareAddress();for (int i = 0; i < macBuf.length; i++) {sMAC = formatter.format(Locale.getDefault(), "%02X%s",macBuf[i], (i < macBuf.length - 1) ? "-" : "").toString();}formatter.close();Map<String, Object> ipMacInfo = new HashMap<String, Object>();ipMacInfo.put("hostname", inetAddress.getHostName()); //系统当前hostnameipMacInfo.put("ip", inetAddress.getHostAddress()); //ip地址ipMacInfo.put("ipnet", inetAddressTypeName(inetAddress)); //网络类型ipMacInfo.put("os", System.getProperty("os.name")); //系统名称ipMacInfo.put("mac", sMAC); //mac 地址ipMacInfo.put("cpu-arch", System.getProperty("os.arch")); //cpu架构ipMacInfo.put("network-arch", ni.getDisplayName()); //网卡名称return ipMacInfo;}} catch (SocketException e) {e.printStackTrace();} return null;}private static String inetAddressTypeName(InetAddress inetAddress) {return (inetAddress instanceof Inet4Address) ? "ipv4" : "ipv6";}//通过第三方网站http://1111.ip138.com/ic.asp获取ippublic static Map<String, String> getOpenNetworkIp() {try {URLConnection openConnection = new URL("http://1111.ip138.com/ic.asp").openConnection();openConnection.setDoInput(true);openConnection.connect();InputStream is =  (InputStream) openConnection.getContent();BufferedReader br = new BufferedReader(new InputStreamReader(is,Charset.forName("GBK")));StringBuilder sb = new StringBuilder();String str = null;while((str=br.readLine())!=null){sb.append(str);}String htmlSrc = sb.toString().toLowerCase(Locale.getDefault());String startTag = "<center>";String endTag = "</center>";htmlSrc = htmlSrc.substring(htmlSrc.indexOf(startTag)+startTag.length(), htmlSrc.lastIndexOf(endTag));String openIp = htmlSrc.substring(htmlSrc.indexOf("[")+1, htmlSrc.lastIndexOf("]"));String provider = htmlSrc.substring(htmlSrc.lastIndexOf("：")+1);Map<String, String> resultMap = new HashMap<String, String>();resultMap.put("openIp", openIp);resultMap.put("provider", provider);br.close();Log.wtf("IP-Mac-3",resultMap);return resultMap;} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return null;}public static String getDNSIp(String url) throws UnknownHostException{InetAddress bupt=null;try{ bupt = InetAddress.getByName(url);return bupt.getHostAddress();}catch(UnknownException e) {e.printStackTrace();}return null;}/*** 检测http网络连接是否正常* @param urlStr* @return*/private static boolean httpIsAvaliable(String urlStr) {URL url = null;InputStream in = null;try {url = new URL(urlStr);URLConnection conn = url.openConnection();conn.connect();in = conn.getInputStream();if (in != null && in.read() >= 0) {return true;}} catch (Exception e) {return false;} finally {if (in != null) {try {in.close();} catch (IOException e) {}}}return false;}/*** 检测任意ip:port网络访问是否正常* @param hostname* @param port* @return*/private static boolean socketIsAvaiable(String hostname,int port){Socket socket = null;try {socket = new Socket();socket.setKeepAlive(true);socket.setTcpNoDelay(true);socket.setTrafficClass(0x08);socket.connect(new InetSocketAddress(hostname, port));if(!socket.isClosed() && socket.isConnected() && !socket.isInputShutdown() && !socket.isOutputShutdown()){return true;}} catch (SocketException e) {e.printStackTrace();return false;} catch (IOException e) {e.printStackTrace();return false;}finally{if(socket!=null && !socket.isClosed()){try {socket.close();} catch (IOException e) {e.printStackTrace();}}}return false;}public static void main(String[] args) {Map<String, Object> localInetMac = getLocalInetMac();System.out.println(localInetMac);Map<String, String> openNetworkIp = getOpenNetworkIp();System.out.println(openNetworkIp);}
}

如上方案在Android,Windows，linux都成功了，可能有些地方考虑不太周全，但应该覆盖了90-95%的PC和Android系统，对了，貌似不支持Android 2.2，

不过Android本身就可获取mac和IP,代码如下

 public Map<String, Object>  getLocalNetworkinfo( ){  Map<String, Object> ipNetInfo = new HashMap<String, Object>();WifiManager wifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);WifiInfo connInfo = wifiManager.getConnectionInfo();String macAddress = connInfo.getMacAddress();//mac地址String ssid = connInfo.getSSID(); //ssidString bssid = connInfo.getBSSID(); int rssi = connInfo.getRssi();//信号强度String speed = connInfo.getLinkSpeed()+WifiInfo.LINK_SPEED_UNITS;//网速int networkId = connInfo.getNetworkId(); //网络号String ip = Formatter.formatIpAddress(connInfo.getIpAddress());DhcpInfo dhcpInfo = wifiManager.getDhcpInfo();  String gateway = Formatter.formatIpAddress(dhcpInfo.gateway);//网关String netmask = Formatter.formatIpAddress(dhcpInfo.netmask);//子网掩码ipNetInfo.put("mac", macAddress);ipNetInfo.put("ip", ip);ipNetInfo.put("gateway", gateway);ipNetInfo.put("netmask", netmask);ipNetInfo.put("ssid", ssid);ipNetInfo.put("rssi", rssi);ipNetInfo.put("bssid", bssid);ipNetInfo.put("speed", speed);ipNetInfo.put("networkId", networkId);Log.e("IP-MAC-2",ipNetInfo);return ipNetInfo; }//信道获取
public static int getCurrentChannel(Context context)
{WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);WifiInfo wifiInfo = wifiManager.getConnectionInfo();// 当前wifi连接信息ListscanResults = wifiManager.getScanResults();for (ScanResult result : scanResults) {if (result.BSSID.equalsIgnoreCase(wifiInfo.getBSSID())&& result.SSID.equalsIgnoreCase(wifiInfo.getSSID().substring(1, wifiInfo.getSSID().length() - 1))) {return getChannelByFrequency(result.frequency);}}return -1;}/*** 根据频率获得信道* * @param frequency* @return*/public static int getChannelByFrequency(int frequency) {int channel = -1;switch (frequency) {case 2412:channel = 1;break;case 2417:channel = 2;break;case 2422:channel = 3;break;case 2427:channel = 4;break;case 2432:channel = 5;break;case 2437:channel = 6;break;case 2442:channel = 7;break;case 2447:channel = 8;break;case 2452:channel = 9;break;case 2457:channel = 10;break;case 2462:channel = 11;break;case 2467:channel = 12;break;case 2472:channel = 13;break;case 2484:channel = 14;break;case 5745:channel = 149;break;case 5765:channel = 153;break;case 5785:channel = 157;break;case 5805:channel = 161;break;case 5825:channel = 165;break;}return channel;}

下面是运行在Android上的效果