package com.ycl.utils.common;
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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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/**
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* @author Lyq
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* @version 1.0
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* @date 2022/9/7
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* 获取操作系统的mac地址
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*/
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public class MacUtils {
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/**
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* 获取当前操作系统名称. return 操作系统名称 例如:windows,Linux,Unix等.
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*/
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public static String getOSName() {
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return System.getProperty("os.name").toLowerCase();
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}
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/**
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* 获取Unix网卡的mac地址.
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*
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* @return mac地址
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*/
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public static String getUnixMACAddress() {
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String mac = null;
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BufferedReader bufferedReader = null;
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Process process = null;
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try {
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/**
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* Unix下的命令，一般取eth0作为本地主网卡 显示信息中包含有mac地址信息
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*/
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process = Runtime.getRuntime().exec("ifconfig eth0");
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bufferedReader = new BufferedReader(new InputStreamReader(
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process.getInputStream()));
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String line = null;
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int index = -1;
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while ((line = bufferedReader.readLine()) != null) {
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/**
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* 寻找标示字符串[hwaddr]
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*/
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index = line.toLowerCase().indexOf("hwaddr");
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/**
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* 找到了
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*/
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if (index != -1) {
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/**
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* 取出mac地址并去除2边空格
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*/
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mac = line.substring(index + "hwaddr".length() + 1).trim();
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break;
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}
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}
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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try {
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if (bufferedReader != null) {
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bufferedReader.close();
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}
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} catch (IOException e1) {
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e1.printStackTrace();
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}
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bufferedReader = null;
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process = null;
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}
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return mac;
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}
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/**
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* 获取Linux网卡的mac地址.
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*
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* @return mac地址
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*/
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public static String getLinuxMACAddress() {
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String mac = null;
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BufferedReader bufferedReader = null;
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Process process = null;
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try {
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/**
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* linux下的命令，一般取eth0作为本地主网卡 显示信息中包含有mac地址信息
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*/
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process = Runtime.getRuntime().exec("ifconfig eth0");
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bufferedReader = new BufferedReader(new InputStreamReader(
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process.getInputStream()));
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String line = null;
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int index = -1;
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while ((line = bufferedReader.readLine()) != null) {
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index = line.toLowerCase().indexOf("硬件地址");
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/**
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* 找到了
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*/
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if (index != -1) {
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/**
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* 取出mac地址并去除2边空格
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*/
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mac = line.substring(index + 4).trim();
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break;
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}
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}
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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try {
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if (bufferedReader != null) {
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bufferedReader.close();
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}
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} catch (IOException e1) {
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e1.printStackTrace();
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}
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bufferedReader = null;
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process = null;
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}
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// 取不到，试下Unix取发
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if (mac == null){
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return getUnixMACAddress();
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}
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return mac;
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}
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/**
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* 获取widnows网卡的mac地址.
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*
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* @return mac地址
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*/
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public static String getWindowsMACAddress() {
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String mac = null;
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BufferedReader bufferedReader = null;
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Process process = null;
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try {
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/**
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* windows下的命令，显示信息中包含有mac地址信息
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*/
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process = Runtime.getRuntime().exec("ipconfig /all");
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bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
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String line = null;
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int index = -1;
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while ((line = bufferedReader.readLine()) != null) {
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/**
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* 寻找标示字符串[physical address 或 物理地址]
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*/
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if (line.split("-").length == 6){
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index = line.indexOf(":");
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if (index != -1) {
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/**
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* 取出mac地址并去除2边空格
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*/
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mac = line.substring(index + 1).trim();
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}
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break;
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}
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}
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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try {
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if (bufferedReader != null) {
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bufferedReader.close();
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}
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} catch (IOException e1) {
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e1.printStackTrace();
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}
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bufferedReader = null;
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process = null;
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}
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return mac;
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}
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public static String getMac(){
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String os = getOSName();
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String mac;
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if (os.startsWith("windows")) {
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mac = getWindowsMACAddress();
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} else if (os.startsWith("linux")) {
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mac = getLinuxMACAddress();
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} else {
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mac = getUnixMACAddress();
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}
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return mac == null ? "" : mac;
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}
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}
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