java獲取mac地址-屏蔽ip封mac地址

java通過ip獲取mac地址-封ip封mac地址

package com.yjf.test;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**

獲取MAC地址
@author sunlightcs
2011-4-29
http://hi.juziku.com/sunlightcs/
*/
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;  

}



 /**
  *
  * @param cmd  第一個命令
  * @param another 第二個命令
  * @return   第二個命令的執行結果
  */  
 public static String callCmd(String[] cmd,String[] another) {  
     String result = "";  
     String line = "";  
     try {  
         Runtime rt = Runtime.getRuntime();  
         Process proc = rt.exec(cmd);  
         proc.waitFor();  //已經執行完第一個命令，準備執行第二個命令  
         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;  
 }



 /**
  *
  * @param ip  目標ip,一般在局域網內
  * @param sourceString 命令處理的結果字符串
  * @param macSeparator mac分隔符號
  * @return  mac地址，用上面的分隔符號表示
  */  
 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;  //如果有多個IP,只匹配本IP對應的Mac.  
         }  
     }

     return result;  
 }



 /**
  *
  * @param ip 目標ip
  * @return   Mac Address
  *
  */  
 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;  
 }  
  來源博客：http://yijianfengvip.blog.163.com/blog/static/175273432201212295830661/

 /**
 *
 * @param ip 目標ip
 * @return   Mac Address
 *
 */  
 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;  
 }  

 /**
  * 獲取MAC地址
  * @return 返回MAC地址
  */
 public static String getMacAddress(String ip){
     String macAddress = "";
     macAddress = getMacInWindows(ip).trim();
     if(macAddress==null||"".equals(macAddress)){
         macAddress = getMacInLinux(ip).trim();
     }
     return macAddress;
 }

 /**
 * 測試
 */  
 public static void main(String[] args) {          
     System.out.println(getMacAddress("220.181.111.148"));
 }


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