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;

}

}