java获取本机mac物理地址

骑猪看日落 2021-11-26 11:14 430阅读 0赞

package com.simonjia.util.other;
    
    import java.net.InetAddress;
    import java.net.InterfaceAddress;
    import java.net.NetworkInterface;
    import java.util.ArrayList;
    import java.util.List;
    import java.util.stream.Collectors;
    
    public class MacTools {
        
        /***因为一台机器不一定只有一个网卡呀，所以返回的是数组是很合理的***/
        public static List<String> getMacList() throws Exception {
        
            java.util.Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
            StringBuilder sb = new StringBuilder();
            ArrayList<String> tmpMacList = new ArrayList<>();
            while (en.hasMoreElements()) {
        
                NetworkInterface iface = en.nextElement();
                List<InterfaceAddress> addrs = iface.getInterfaceAddresses();
                for (InterfaceAddress addr : addrs) {
        
                    InetAddress ip = addr.getAddress();
                    NetworkInterface network = NetworkInterface.getByInetAddress(ip);
                    if (network == null) {
        
                        continue;
                    }
                    byte[] mac = network.getHardwareAddress();
                    if (mac == null) {
        
                        continue;
                    }
                    sb.delete(0, sb.length());
                    for (int i = 0; i < mac.length; i++) {
        
                        sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));
                    }
                    tmpMacList.add(sb.toString());
                }
            }
            if (tmpMacList.size() <= 0) {
        
                return tmpMacList;
            }
            /***去重，别忘了同一个网卡的ipv4,ipv6得到的mac都是一样的，肯定有重复，下面这段代码是。。流式处理***/
            List<String> unique = tmpMacList.stream().distinct().collect(Collectors.toList());
            return unique;
        }
    
        public static void main(String[] args) throws Exception {
        
            long a = System.currentTimeMillis();
            System.out.println("进行 multi net address 测试===》");
            List<String> macs = getMacList();
            long b = System.currentTimeMillis();
            System.out.println("本机的mac网卡的地址有：" + macs);
            System.out.println("总耗时----" + (b - a) + "-----ms");
        }
    }

![1162521-20190613104349480-1183133973.png][]

![1162521-20190613105443800-211726355.png][]

这个只能拿到服务本机的mac地址，对于远程请求获取请求者的mac信息并不适用……

获取来访者ip信息----：[https://www.cnblogs.com/SimonHu1993/p/11015069.html][https_www.cnblogs.com_SimonHu1993_p_11015069.html]

博主原文太长，只取精华-0- 详细可见：[https://blog.csdn.net/cdnight/article/details/86741265][https_blog.csdn.net_cdnight_article_details_86741265]

转载于:https://www.cnblogs.com/SimonHu1993/p/11014786.html

[1162521-20190613104349480-1183133973.png]: /images/20211126/46045380d01d46a5b9359d3d9fba385d.png
[1162521-20190613105443800-211726355.png]: /images/20211126/a95c055c76e845d18e3bfaae2403256e.png
[https_www.cnblogs.com_SimonHu1993_p_11015069.html]: https://www.cnblogs.com/SimonHu1993/p/11015069.html
[https_blog.csdn.net_cdnight_article_details_86741265]: https://blog.csdn.net/cdnight/article/details/86741265