今天有个需求，就是后台的日志要记录下访问者的详细访问记录信息，包括环境信息，至于浏览器信息、IP啦这些的相信大家都可以从request中拿到，但是这个客户端的MAC地址需要自己写个方法获取，我写了一个方法，现拿出来和大家分享，小弟编码水平有限，有什么设计不合理的地方，望各位大神勿喷。

  代码如下：

package com.app.archive.util;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @E-mail:luckyboyguo@126.com
 * @author luckyboy
 * @QQ:263235040
 */

public class GetMacAddress {
     
     public static String callCmd(String[] cmd) {  
         String result = "";  
         String line = "";  
         try {  
             Process proc = Runtime.getRuntime().exec(cmd);  
             InputStreamReader is = new InputStreamReader(proc.getInputStream());  
             BufferedReader br = new BufferedReader (is);  
             while ((line = br.readLine ()) != null) {  
             result += line;  
             }  
         }  
         catch(Exception e) {  
             e.printStackTrace();  
         }  
         return result;  
     }
     
     
     /**
      * @E-mail:luckyboyguo@126.com
      * @author luckyboy
      * @QQ:263235040
      */
   
     public static String callCmd(String[] cmd,String[] another) {  
         String result = "";  
         String line = "";  
         try {  
             Runtime rt = Runtime.getRuntime();  
             Process proc = rt.exec(cmd);  
             proc.waitFor();  
             proc = rt.exec(another);  
             InputStreamReader is = new InputStreamReader(proc.getInputStream());  
             BufferedReader br = new BufferedReader (is);  
             while ((line = br.readLine ()) != null) {  
                 result += line;  
             }  
         }  
         catch(Exception e) {  
             e.printStackTrace();  
         }  
         return result;  
     }
     
     
     /**
      * @E-mail:luckyboyguo@126.com
      * @author luckyboy
      * @QQ:263235040
      */

     public static String filterMacAddress(final String ip, final String sourceString,final String macSeparator) {  
         String result = "";  
         String regExp = "((([0-9,A-F,a-f]{1,2}" + macSeparator + "){1,5})[0-9,A-F,a-f]{1,2})";  
         Pattern pattern = Pattern.compile(regExp);  
         Matcher matcher = pattern.matcher(sourceString);  
         while(matcher.find()){  
             result = matcher.group(1);  
             if(sourceString.indexOf(ip) <= sourceString.lastIndexOf(matcher.group(1))) {  
                 break;  
             }  
         }
   
         return result;  
     }
     
     
     
     /**
      * @E-mail:luckyboyguo@126.com
      * @author luckyboy
      * @QQ:263235040
      */ 
     public static String getMacInWindows(final String ip){  
         String result = "";  
         String[] cmd = {  
                 "cmd",  
                 "/c",  
                 "ping " +  ip  
                 };  
         String[] another = {  
                 "cmd",  
                 "/c",  
                 "arp -a"  
                 };  
   
         String cmdResult = callCmd(cmd,another);  
         result = filterMacAddress(ip,cmdResult,"-");  
   
         return result;  
     }  
 
     /**
      * @E-mail:luckyboyguo@126.com
      * @author luckyboy
      * @QQ:263235040
      */
     public static String getMacInLinux(final String ip){  
         String result = "";  
         String[] cmd = {  
                 "/bin/sh",  
                 "-c",  
                 "ping " +  ip + " -c 2 && arp -a"  
                 };  
         String cmdResult = callCmd(cmd);  
         result = filterMacAddress(ip,cmdResult,":");  
   
         return result;  
     }  
     
     /**
      * @E-mail:luckyboyguo@126.com
      * @author luckyboy
      * @QQ:263235040
      */
     public static String getMacAddress(String ip){
         String macAddress = "";
         macAddress = getMacInWindows(ip).trim();
         if(macAddress==null||"".equals(macAddress)){
             macAddress = getMacInLinux(ip).trim();
         }
         return macAddress;
     }
        
 
     public static void main(String[] args) {           
         System.out.println(getMacAddress("127.0.0.1"));
     }
    
}

测试结果：

JAVA获取客户端的MAC地址