首先要说的是:可以支持外网机器的mac地址获取。 以前弄了一个只能访问局域网。 有防火墙就访问不了, 但是这个不用担心了。 测试了百度的ip,已经可以获得mac地址
测试效果图:
java通过ip获取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;/*** 获取MAC地址* @author* 2011-12*/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; } 来源地址:http://yijianfengvip.blog.163.com/blog/static/175273432201212295830661/ /** * * @param cmd 第一个命令 * @param another 第二个命令 * @return 第二个命令的执行结果 */ public static String callCmd(String[] cmd,String[] another) { String result = ""; String line = ""; try { Runtime rt = Runtime.getRuntime(); Process proc = rt.exec(cmd); proc.waitFor(); //已经执行完第一个命令,准备执行第二个命令 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 目标ip,一般在局域网内 * @param sourceString 命令处理的结果字符串 * @param macSeparator mac分隔符号 * @return mac地址,用上面的分隔符号表示 */ 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; //如果有多个IP,只匹配本IP对应的Mac. } } return result; } /** * * @param ip 目标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; } 来源博客:http://yijianfengvip.blog.163.com/blog/static/175273432201212295830661/ /** * * @param ip 目标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; } /** * 获取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; } 来源博客:http://yijianfengvip.blog.163.com/blog/static/175273432201212295830661/ /** * 测试 */ public static void main(String[] args) { System.out.println(getMacAddress("220.181.111.148")); } }java通过ip获取mac地址-封ip封mac地址
测试效果图:
本文转自yjflinchong 51CTO博客,原文链接:http://blog.51cto.com/yjflinchong/1164986,如需转载请自行联系原作者