获取本机IP与Mac

获取IP并排除本地回路.

private static String getIpAddress() throws Exception {
        Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
        List<String> ipList = new ArrayList<>(8);
        while (networkInterfaces.hasMoreElements()) {
            NetworkInterface networkInterface = networkInterfaces.nextElement();
            Enumeration<InetAddress> iNetAddresses = networkInterface.getInetAddresses();
            while (iNetAddresses.hasMoreElements()) {
                InetAddress inetAddress = iNetAddresses.nextElement();
                if (inetAddress instanceof Inet4Address) {
                    if (!"127.0.0.1".equals(inetAddress.getHostAddress())) {
                        ipList.add(inetAddress.getHostAddress());
                    }
                }
            }
        }
        return ipList.toString();
    }

获取MAC地址,与网卡(包括虚拟网卡)个数相关

private static String getMac() throws Exception {
        Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
        StringBuilder sb = new StringBuilder();
        ArrayList<String> tmpList = new ArrayList<>(8);
        while (networkInterfaces.hasMoreElements()) {
            NetworkInterface networkInterface = networkInterfaces.nextElement();
            List<InterfaceAddress> interfaceAddresses = networkInterface.getInterfaceAddresses();
            for (InterfaceAddress interfaceAddress : interfaceAddresses) {
                InetAddress inetAddress = interfaceAddress.getAddress();
                NetworkInterface network = NetworkInterface.getByInetAddress(inetAddress);
                if (network == null) {
                    continue;
                }
                byte[] mac = network.getHardwareAddress();
                if (mac == null || mac.length == 0) {
                    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) ? "-" : ""));
                }
                tmpList.add(sb.toString());
            }
        }
        //去重
        Set<String> set = new HashSet<>(tmpList);
        return new ArrayList<>(set).toString();
    }

测试结果:

与系统的ipconfig -all比较

linux上进行测试:

放着 以后备用 嘻嘻