java 获取服务器IP地址及MAC地址

女爷i 2023-10-02 11:44 3阅读 0赞

java编程实现获取机器IP地址及MAC地址的方法,实例分析了Java分别针对单网卡及多网卡的情况下获取服务器IP地址与MAC地址

/**
         * 此方法描述的是：获得服务器的IP地址
         */
        public static String getLocalIP() {
        
            String sIP = "";
            InetAddress ip = null;
            try {
        
                boolean bFindIP = false;
                Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface
                        .getNetworkInterfaces();
                while (netInterfaces.hasMoreElements()) {
        
                    if (bFindIP) {
        
                        break;
                    }
                    NetworkInterface ni = (NetworkInterface) netInterfaces
                            .nextElement();
                    Enumeration<InetAddress> ips = ni.getInetAddresses();
                    while (ips.hasMoreElements()) {
        
                        ip = (InetAddress) ips.nextElement();
                        if (!ip.isLoopbackAddress()
                                && ip.getHostAddress().matches(
                                "(\\d{1,3}\\.){3}\\d{1,3}")) {
        
                            bFindIP = true;
                            break;
                        }
                    }
                }
            } catch (Exception e) {
        
                e.printStackTrace();
            }
            if (null != ip) {
        
                sIP = ip.getHostAddress();
            }
            return sIP;
        }
    
        /**
         * 此方法描述的是：获得服务器的IP地址(多网卡)
         */
        public static List<String> getLocalIPS() {
        
            InetAddress ip = null;
            List<String>  ipList = new ArrayList<String>();
            try {
        
                Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface
                        .getNetworkInterfaces();
                while (netInterfaces.hasMoreElements()) {
        
                    NetworkInterface ni = (NetworkInterface) netInterfaces
                            .nextElement();
                    Enumeration<InetAddress> ips = ni.getInetAddresses();
                    while (ips.hasMoreElements()) {
        
                        ip = (InetAddress) ips.nextElement();
                        if (!ip.isLoopbackAddress()
                                && ip.getHostAddress().matches(
                                "(\\d{1,3}\\.){3}\\d{1,3}")) {
        
                            ipList.add(ip.getHostAddress());
                        }
                    }
                }
            } catch (Exception e) {
        
                e.printStackTrace();
            }
            return ipList;
        }
    
    
    
        public static void main(String[] args) {
        
            String myIp = getLocalIP();
            List<String> localIPS = getLocalIPS();
            System.out.println(myIp);
            System.out.println(localIPS);
            System.out.println(getMacId());
            System.out.println(getMacIds());
     
        }
    
    
        /**
         * 此方法描述的是：获得服务器的MAC地址
         */
        public static String getMacId() {
        
            String macId = "";
            InetAddress ip = null;
            NetworkInterface ni = null;
            try {
        
                boolean bFindIP = false;
                Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface
                        .getNetworkInterfaces();
                while (netInterfaces.hasMoreElements()) {
        
                    if (bFindIP) {
        
                        break;
                    }
                    ni = (NetworkInterface) netInterfaces
                            .nextElement();
                    // ----------特定情况，可以考虑用ni.getName判断
                    // 遍历所有ip
                    Enumeration<InetAddress> ips = ni.getInetAddresses();
                    while (ips.hasMoreElements()) {
        
                        ip = (InetAddress) ips.nextElement();
                        if (!ip.isLoopbackAddress() // 非127.0.0.1
                                && ip.getHostAddress().matches(
                                "(\\d{1,3}\\.){3}\\d{1,3}")) {
        
                            bFindIP = true;
                            break;
                        }
                    }
                }
            } catch (Exception e) {
        
                e.printStackTrace();
            }
            if (null != ip) {
        
                try {
        
                    macId = getMacFromBytes(ni.getHardwareAddress());
                } catch (SocketException e) {
        
                    e.printStackTrace();
                }
            }
            return macId;
        }
        /**
         * 此方法描述的是：获得服务器的MAC地址(多网卡)
         */
        public static List<String> getMacIds() {
        
            InetAddress ip = null;
            NetworkInterface ni = null;
            List<String> macList = new ArrayList<String>();
            try {
        
                Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface
                        .getNetworkInterfaces();
                while (netInterfaces.hasMoreElements()) {
        
                    ni = (NetworkInterface) netInterfaces
                            .nextElement();
                    // ----------特定情况，可以考虑用ni.getName判断
                    // 遍历所有ip
                    Enumeration<InetAddress> ips = ni.getInetAddresses();
                    while (ips.hasMoreElements()) {
        
                        ip = (InetAddress) ips.nextElement();
                        if (!ip.isLoopbackAddress() // 非127.0.0.1
                                && ip.getHostAddress().matches(
                                "(\\d{1,3}\\.){3}\\d{1,3}")) {
        
                            macList.add(getMacFromBytes(ni.getHardwareAddress()));
                        }
                    }
                }
            } catch (Exception e) {
        
                e.printStackTrace();
            }
            return macList;
        }
        private static String getMacFromBytes(byte[] bytes) {
        
            StringBuffer mac = new StringBuffer();
            byte currentByte;
            boolean first = false;
            for (byte b : bytes) {
        
                if (first) {
        
                    mac.append("-");
                }
                currentByte = (byte) ((b & 240) >> 4);
                mac.append(Integer.toHexString(currentByte));
                currentByte = (byte) (b & 15);
                mac.append(Integer.toHexString(currentByte));
                first = true;
            }
            return mac.toString().toUpperCase();
        }

测试结果  
![在这里插入图片描述][watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5Yaw5aSc57-O_size_20_color_FFFFFF_t_70_g_se_x_16]

[watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5Yaw5aSc57-O_size_20_color_FFFFFF_t_70_g_se_x_16]: https://img-blog.csdnimg.cn/d6543e22fc304c8b8c8f908f73578f1c.png?x-oss-process=image/watermark,type_ZHJvaWRzYW5zZmFsbGJhY2s,shadow_50,text_Q1NETiBA5Yaw5aSc57-O,size_20,color_FFFFFF,t_70,g_se,x_16