java获取mac地址-屏蔽ip封mac地址

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;

}