如何獲得本地網絡上的機器的MAC地址在java

Question

我正在使用NetworkInterface類來獲取MAC地址，但我在我的代碼中爲空NetworkInterface ni = NetworkInterface.getByInetAddress（inetAddr）; 。我在ni對象中得到空值，請求建議我以lan的方式獲取設備的mac地址。

在此先感謝。用於獲取主機

InetAddress address = socket.getInetAddress(); 
String hostIP = addresss.getHostAddress(); 

阿希什

Answer 1

試試這個代碼，

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; 
} 
} 

Answer 2

使用下面幾行使用Java代碼，讓我知道，如果發現有任何運氣。還要檢查這個鏈接，如果有幫助， How to obtain MAC address of WiFi network interface?