i am using NetworkInterface class to get the MAC address but i am getting null in my code NetworkInterface ni = NetworkInterface.getByInetAddress(inetAddr); .I am getting null in ni object,pleas suggest me the way to get the mac address of a device on lan.
Thanks in advance.
Try this code,
import java.io.*; import java.net.*; import java.util.*; import java.util.regex.*; public class GetMac { public static void main(String[] args) throws IOException { String address = new GetMac().getMacAddress(); System.out.println(address); } public String getMacAddress() throws IOException { String macAddress = null; String command = "ipconfig /all"; Process pid = Runtime.getRuntime().exec(command); BufferedReader in = new BufferedReader( new InputStreamReader(pid.getInputStream())); while (true) { String line = in.readLine(); if (line == null) break; Pattern p = Pattern.compile(".*Physical Address.*: (.*)"); Matcher m = p.matcher(line); if (m.matches()) { macAddress = m.group(1); break; } } in.close(); return macAddress; } } Use following lines for getting the host
InetAddress address = socket.getInetAddress(); String hostIP = addresss.getHostAddress(); Ashish use this java code and let me know if found any luck. Also check this link if helpful, How to obtain MAC address of WiFi network interface?
