JAVA获取本地的所有网卡IP地址列表

 

 

 private static final String NETMASK = "(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)";

    private static final Pattern IP_PATTERN = Pattern.compile("^(?:" + NETMASK + "\\.){3}" + NETMASK + "$");


    public static final String LOCAL_IP = "127.0.0.1";

/**
     * 获取本机的所有网卡IP列表  不包含127.0.0.1
     * @return 本机网卡的IP列表
     */
    public static List<String> getServerIpList() {
        List<String> serverIpList = new ArrayList<>();
        try {
            // 获取所有网络接口（网卡）
            Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
            // 遍历每个网络接口
            for (NetworkInterface networkInterface : Collections.list(interfaces)) {
                // 跳过回环接口和未激活的接口
                if (networkInterface.isLoopback() || !networkInterface.isUp()) {
                    continue;
                }
                // 获取每个网络接口的 IP 地址
                Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();
                for (InetAddress inetAddress : Collections.list(inetAddresses)) {
                    // 过滤掉IPv6地址（如果你只想要IPv4地址）
                    if (inetAddress instanceof java.net.Inet4Address) {
                        String ip = inetAddress.getHostAddress();
                        if (!LOCAL_IP.equals(ip) && isIPv4Valid(ip)) {
                            serverIpList.add(inetAddress.getHostAddress());
                        }
                    }
                }
            }
        } catch (SocketException e) {
            throw new RuntimeException("获取服务器网卡IP异常", e);
        }
        return serverIpList;
    }


    public static boolean isIPv4Valid(String ip) {
        return IP_PATTERN.matcher(ip).matches();
    }