java工具类,在Windows,Linux系统获取电脑的MAC地址、本地IP、电脑名

zhuce

package com.cloudssaas.util;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/*********************************************************************************
* //* Copyright (C) 2014 ××××××××××. All Rights Reserved. //* //* Filename:
* ComputerInfo.java //* Revision: 1.0 //* Author: <yao xiucai> //* Created On:
* 2014年5月21日 //* Modified by: //* Modified On: //* //* Description:
*
* <取网卡物理地址--
* 1.在Windows,Linux系统下均可用；
* 2.通过ipconifg,ifconfig获得计算机信息；
* 3.再用模式匹配方式查找MAC地址，与操作系统的语言无关>
*
* //* Description: <取计算机名--从环境变量中取>
* abstract 限制继承/创建实例
*/
/********************************************************************************/
public abstract class ComputerInfo {
private static String macAddressStr = null;
private static String computerName = System.getenv().get("COMPUTERNAME");
private static final String[] windowsCommand = { "ipconfig", "/all" };
private static final String[] linuxCommand = { "/sbin/ifconfig", "-a" };
private static final Pattern macPattern = Pattern.compile(".*((:?[0-9a-f]{2}[-:]){5}[0-9a-f]{2}).*",
Pattern.CASE_INSENSITIVE);
/**
* 获取多个网卡地址
*
* @return
* @throws IOException
*/
private final static List<String> getMacAddressList() throws IOException {
final ArrayList<String> macAddressList = new ArrayList<String>();
final String os = System.getProperty("os.name");
final String command[];
if (os.startsWith("Windows")) {
command = windowsCommand;
} else if (os.startsWith("Linux")) {
command = linuxCommand;
} else {
throw new IOException("Unknow operating system:" + os);
}
// 执行命令
final Process process = Runtime.getRuntime().exec(command);
BufferedReader bufReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
for (String line = null; (line = bufReader.readLine()) != null;) {
Matcher matcher = macPattern.matcher(line);
if (matcher.matches()) {
macAddressList.add(matcher.group(1));
// macAddressList.add(matcher.group(1).replaceAll("[-:]",
// ""));//去掉MAC中的“-”
            }
}
process.destroy();
bufReader.close();
return macAddressList;
}
/**
* 获取一个网卡地址（多个网卡时从中获取一个）
*
* @return
*/
public static String getMacAddress() {
if (macAddressStr == null || macAddressStr.equals("")) {
StringBuffer sb = new StringBuffer(); // 存放多个网卡地址用，目前只取一个非0000000000E0隧道的值
try {
List<String> macList = getMacAddressList();
for (Iterator<String> iter = macList.iterator(); iter.hasNext();) {
String amac = iter.next();
if (!amac.equals("0000000000E0")) {
sb.append(amac);
break;
}
}
} catch (IOException e) {
e.printStackTrace();
}
macAddressStr = sb.toString();
}
return macAddressStr;
}
/**
* 获取电脑名
*
* @return
*/
public static String getComputerName() {
if (computerName == null || computerName.equals("")) {
computerName = System.getenv().get("COMPUTERNAME");
}
return computerName;
}
/**
* 获取客户端IP地址
*
* @return
*/
public static String getIpAddrAndName() throws IOException {
return InetAddress.getLocalHost().toString();
}
/**
* 获取客户端IP地址
*
* @return
*/
public static String getIpAddr() throws IOException {
return InetAddress.getLocalHost().getHostAddress().toString();
}
/**
* 获取电脑唯一标识
*
* @return
*/
public static String getComputerID() {
String id = getMacAddress();
if (id == null || id.equals("")) {
try {
id = getIpAddrAndName();
} catch (IOException e) {
e.printStackTrace();
}
}
return computerName;
}
/**
* 限制创建实例
*/
private ComputerInfo() {
}
public static void main(String[] args) throws IOException {
System.out.println(ComputerInfo.getMacAddress());
System.out.println(ComputerInfo.getComputerName());
System.out.println(ComputerInfo.getIpAddr());
System.out.println(ComputerInfo.getIpAddrAndName());
}
}
　　相关：
　　 java中得到计算机MAC网卡标识，IP，计算机名称等唯一标识问题