package com.jsh.erp.utils;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.net.InetAddress;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/*
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* <取网卡物理地址--
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* 1.在Windows,Linux系统下均可用；
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* 2.通过ipconifg,ifconfig获得计算机信息；
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* 3.再用模式匹配方式查找MAC地址，与操作系统的语言无关>
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*
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* //* Description: <取计算机名--从环境变量中取>
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* abstract 限制继承/创建实例
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*/
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public abstract class ComputerInfo {
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private static String macAddressStr = null;
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private static String computerName = System.getenv().get("COMPUTERNAME");
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private static final String[] windowsCommand = { "ipconfig", "/all" };
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private static final String[] linuxCommand = { "/sbin/ifconfig", "-a" };
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private static final Pattern macPattern = Pattern.compile(".*((:?[0-9a-f]{2}[-:]){5}[0-9a-f]{2}).*",
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Pattern.CASE_INSENSITIVE);
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/**
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* 获取多个网卡地址
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*
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* @return
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* @throws IOException
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*/
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private final static List<String> getMacAddressList() throws IOException {
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final ArrayList<String> macAddressList = new ArrayList<String>();
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final String os = System.getProperty("os.name");
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final String command[];
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if (os.startsWith("Windows")) {
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command = windowsCommand;
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} else if (os.startsWith("Linux")) {
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command = linuxCommand;
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} else {
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throw new IOException("Unknow operating system:" + os);
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}
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// 执行命令
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final Process process = Runtime.getRuntime().exec(command);
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BufferedReader bufReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
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for (String line = null; (line = bufReader.readLine()) != null;) {
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Matcher matcher = macPattern.matcher(line);
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if (matcher.matches()) {
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macAddressList.add(matcher.group(1));
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// macAddressList.add(matcher.group(1).replaceAll("[-:]",
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// ""));//去掉MAC中的“-”
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}
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}
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process.destroy();
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bufReader.close();
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return macAddressList;
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}
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/**
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* 获取一个网卡地址（多个网卡时从中获取一个）
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*
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* @return
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*/
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public static String getMacAddress() {
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if (macAddressStr == null || macAddressStr.equals("")) {
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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
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try {
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List<String> macList = getMacAddressList();
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for (Iterator<String> iter = macList.iterator(); iter.hasNext();) {
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String amac = iter.next();
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if (!amac.equals("0000000000E0")) {
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sb.append(amac);
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break;
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}
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}
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} catch (IOException ignored) {
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}
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macAddressStr = sb.toString();
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}
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return macAddressStr;
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}
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/**
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* 获取电脑名
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*
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* @return
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*/
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public static String getComputerName() {
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if (computerName == null || computerName.equals("")) {
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computerName = System.getenv().get("COMPUTERNAME");
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}
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return computerName;
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}
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/**
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* 获取客户端IP地址
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*
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* @return
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*/
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public static String getIpAddrAndName() throws IOException {
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return InetAddress.getLocalHost().toString();
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}
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/**
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* 获取客户端IP地址
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*
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* @return
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*/
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public static String getIpAddr() throws IOException {
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return InetAddress.getLocalHost().getHostAddress().toString();
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}
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/**
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* 限制创建实例
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*/
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private ComputerInfo() {
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}
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public static void main(String[] args) throws IOException {
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System.out.println(ComputerInfo.getMacAddress());
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System.out.println(ComputerInfo.getComputerName());
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System.out.println(ComputerInfo.getIpAddr());
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System.out.println(ComputerInfo.getIpAddrAndName());
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}
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}
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