InetAddress.getLocalHost().getHostAddress();

public static String getLocalAddress() {        try {            // 获取所在机器上的所有网卡            Enumeration<NetworkInterface> enumeration = NetworkInterface.getNetworkInterfaces();            ArrayList<String> ipv4Result = new ArrayList<String>();            ArrayList<String> ipv6Result = new ArrayList<String>();            // 遍历获取所有网卡绑定的全部IP地址，并按照IPV4和IPV6分开存放            while (enumeration.hasMoreElements()) {                final NetworkInterface networkInterface = enumeration.nextElement();                final Enumeration<InetAddress> en = networkInterface.getInetAddresses();                while (en.hasMoreElements()) {                    final InetAddress address = en.nextElement();                    if (!address.isLoopbackAddress()) {                        if (address instanceof Inet6Address) {                          ipv6Result.add(normalizeHostAddress(address));                        } else {                            ipv4Result.add(normalizeHostAddress(address));                        }                    }                }            }            // 优先返回IPV4的非回路和非私有地址            if (!ipv4Result.isEmpty()) {                for (String ip : ipv4Result) {                    if (ip.startsWith("127.0") || ip.startsWith("192.168")) {                        continue;                    }                    return ip;                }                return ipv4Result.get(ipv4Result.size() - 1);            } else if (!ipv6Result.isEmpty()) {                return ipv6Result.get(0);            }            // 如果获取失败，降级到根据localhost获取地址            final InetAddress localHost = InetAddress.getLocalHost();            return normalizeHostAddress(localHost);        } catch (Exception e) {            log.error("Failed to obtain local address", e);        }        return null;    }
    // 工具方法，规范IP地址格式    private static String normalizeHostAddress(final InetAddress localHost) {        if (localHost instanceof Inet6Address) {            return "[" + localHost.getHostAddress() + "]";        } else {            return localHost.getHostAddress();        }    }