Java 获取客户端mac地址

package com.alpha.test; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.LineNumberReader; public class GetMac { /** * java获取客户端网卡的MAC地址 * * @param args */ public static void main(String[] args) { GetMac get = new GetMac(); System.out.println("1="+get.getMAC()); System.out.println("2="+get.getMAC("127.0.0.1")); } // 1.获取客户端ip地址( 这个必须从客户端传到后台)： // jsp页面下，很简单，request.getRemoteAddr() ; // 因为系统的VIew层是用JSF来实现的，因此页面上没法直接获得类似request，在bean里做了个强制转换 // public String getMyIP() { // try { // FacesContext fc = FacesContext.getCurrentInstance(); // HttpServletRequest request = (HttpServletRequest) fc // .getExternalContext().getRequest(); // return request.getRemoteAddr(); // } catch (Exception e) { // e.printStackTrace(); // } // return ""; // } // 2.获取客户端mac地址 // 调用window的命令，在后台Bean里实现 通过ip来获取mac地址。方法如下： // 运行速度【快】 public String getMAC() { String mac = null; try { Process pro = Runtime.getRuntime().exec("cmd.exe /c ipconfig/all"); InputStream is = pro.getInputStream(); BufferedReader br = new BufferedReader(new InputStreamReader(is)); String message = br.readLine(); int index = -1; while (message != null) { if ((index = message.indexOf("Physical Address")) > 0) { mac = message.substring(index + 36).trim(); break; } message = br.readLine(); } System.out.println(mac); br.close(); pro.destroy(); } catch (IOException e) { System.out.println("Can't get mac address!"); return null; } return mac; } // 运行速度【慢】 public String getMAC(String ip) { String str = null; String macAddress = null; try { Process p = Runtime.getRuntime().exec("nbtstat -A " + ip); InputStreamReader ir = new InputStreamReader(p.getInputStream()); LineNumberReader input = new LineNumberReader(ir); for (; true;) { str = input.readLine(); if (str != null) { if (str.indexOf("MAC Address") > 1) { macAddress = str .substring(str.indexOf("MAC Address") + 14); break; } } } } catch (IOException e) { e.printStackTrace(System.out); return null; } return macAddress; } }