啦啦啦
package com.xindatai.common.util;import java.io.InputStream;
import java.util.regex.Matcher;
import java.util.regex.Pattern;public class Lime { public static void main(String[] args) throws Exception {
String mac = getMacAdderss("192.168.10.10");
System.out.println(mac);
} /**
* 获取mac地址
*
* @author Liang
*
* 2017年4月26日
*/
private static String getMacAdderss(String ip) throws Exception {
if(ping(ip)){
String result = command("arp -a " + ip);
String regExp = "([0-9A-Fa-f]{2})([-:][0-9A-Fa-f]{2}){5}";
Pattern pattern = Pattern.compile(regExp);
Matcher matcher = pattern.matcher(result);
StringBuilder mac = new StringBuilder();
// 对字符串进行匹配,匹配到的字符串可以在任何位置
while(matcher.find()){
// 返回匹配到的子字符串
String temp = matcher.group();
mac.append(temp);
}
return mac.toString();
}
return null;
} /**
* ping ip
*
* @param ip
*
* @return
*
* @author Liang
*
* 2017年4月26日
*/
private static boolean ping(String ip) throws Exception {
String os = getOsName();
String ping = "";
if(os.startsWith("Windows")){
ping = "ping " + ip + " -n 2";
}else if(os.startsWith("Linux")){
ping = "ping " + ip + " -c 2";
}
String result = command(ping);
if(result.contains("TTL") || result.contains("ttl")){
return true;
}
return false;
} /**
* 执行单条指令
*
* @param cmd 命令
*
* @return 执行结果
*
* @author Liang
*
* 2017年4月26日
*/
private static String command(String cmd) throws Exception {
Process process = Runtime.getRuntime().exec(cmd);
process.waitFor();
InputStream in = process.getInputStream();
StringBuilder result = new StringBuilder();
byte[] data = new byte[256];
while(in.read(data) != -1){
// 操作系统中的编码方式
String encoding = System.getProperty("sun.jnu.encoding");
result.append(new String(data,encoding));
}
return result.toString();
} private static String getOsName() {
return System.getProperty("os.name");
}
}
啦啦啦
