我们都知道通过在电脑上敲 cmd 后,输入ipconfig -all 来获取IP地址或者MAC地址,java程序可以在window和linux下获取MAC地址等信息!看下面代码
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.LineNumberReader; /** * * @author http://zhidao.baidu.com/question/292753600.html */ public class TestMac { public static void main(String[] args) { long start = System.currentTimeMillis(); System.out.println("Operation System=" + getOsName()); System.out.println("Mac Address=" + getMACAddress()); System.out.println("通过ip获取mac地址为:" + getMACAddress("192.168.2.14")); long end = System.currentTimeMillis(); System.out.println("获取电脑MAC地址时间为:" + (end - start)); } /** * 获取操作系统名称 */ public static String getOsName() { String os = ""; os = System.getProperty("os.name"); return os; } /** * 获取MAC地址 */ public static String getMACAddress() { String address = ""; String os = getOsName(); //根据操作系统类型获取MAC地址 if (os.startsWith("Windows")) { try { String command = "cmd.exe /c ipconfig /all"; Process p = Runtime.getRuntime().exec(command); BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream())); String line; while ((line = br.readLine()) != null) { if (line.indexOf("Physical Address") > 0) { int index = line.indexOf(":"); index += 2; address = line.substring(index); break; } } br.close(); return address.trim(); } catch (IOException e) { } } else if (os.startsWith("Linux")) { String command = "/bin/sh -c ifconfig -a"; Process p; try { p = Runtime.getRuntime().exec(command); BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream())); String line; while ((line = br.readLine()) != null) { if (line.indexOf("HWaddr") > 0) { int index = line.indexOf("HWaddr") + "HWaddr".length(); address = line.substring(index); break; } } br.close(); } catch (IOException e) { } } address = address.trim(); return address; } /** * 根据IP地址获取MAC地址 */ public static String getMACAddress(String ipAddress) { String str = "", strMAC = "", macAddress = ""; try { Process pp = Runtime.getRuntime().exec("nbtstat -a " + ipAddress); InputStreamReader ir = new InputStreamReader(pp.getInputStream()); LineNumberReader input = new LineNumberReader(ir); for (int i = 1; i < 100; i++) { str = input.readLine(); if (str != null) { if (str.indexOf("MAC Address") > 1) { strMAC = str.substring(str.indexOf("MAC Address") + 14, str.length()); break; } } } } catch (IOException ex) { return "Can't Get MAC Address!"; } if (strMAC.length() < 17) { return "Error!"; } macAddress = strMAC.substring(0, 2) + ":" + strMAC.substring(3, 5) + ":" + strMAC.substring(6, 8) + ":" + strMAC.substring(9, 11) + ":" + strMAC.substring(12, 14) + ":" + strMAC.substring(15, 17); return macAddress; } }