李大仁博客

public static String getLocalIP() {
    String ip = "";
        try {
            InetAddress address = InetAddress.getLocalHost();
            if(address != null) {
                ip = address.getHostAddress();
            }
        } catch (UnknownHostException e) {
            e.printStackTrace();
        }
    return ip;
}

public static String getLocalIP() { String ip = ""; try { InetAddress address = InetAddress.getLocalHost(); if(address != null) { ip = address.getHostAddress(); } } catch (UnknownHostException e) { e.printStackTrace(); } return ip; }

public static String getLocalIP() {
    Enumeration allNetInterfaces = NetworkInterface.getNetworkInterfaces();
    InetAddress ip = null;
    while (allNetInterfaces.hasMoreElements()) {
        NetworkInterface netInterface = (NetworkInterface) allNetInterfaces.nextElement();
        System.out.println(netInterface.getName());
        Enumeration addresses = netInterface.getInetAddresses();
        while (addresses.hasMoreElements()) {
            ip = (InetAddress) addresses.nextElement();
                if (ip != null && ip instanceof Inet4Address) {
                    return ip.getHostAddress();
                }
            }
        }
    }
    return "";
}

public static String getLocalIP() { Enumeration allNetInterfaces = NetworkInterface.getNetworkInterfaces(); InetAddress ip = null; while (allNetInterfaces.hasMoreElements()) { NetworkInterface netInterface = (NetworkInterface) allNetInterfaces.nextElement(); System.out.println(netInterface.getName()); Enumeration addresses = netInterface.getInetAddresses(); while (addresses.hasMoreElements()) { ip = (InetAddress) addresses.nextElement(); if (ip != null && ip instanceof Inet4Address) { return ip.getHostAddress(); } } } } return ""; }

public static List<String> getLocalIPList() {
        List<String> ipList = new ArrayList<String>();
        try {
            Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
            NetworkInterface networkInterface;
            Enumeration<InetAddress> inetAddresses;
            InetAddress inetAddress;
            String ip;
            while (networkInterfaces.hasMoreElements()) {
                networkInterface = networkInterfaces.nextElement();
                inetAddresses = networkInterface.getInetAddresses();
                while (inetAddresses.hasMoreElements()) {
                    inetAddress = inetAddresses.nextElement();
                    if (inetAddress != null && inetAddress instanceof Inet4Address) { // IPV4
                        ip = inetAddress.getHostAddress();
                        ipList.add(ip);
                    }
                }
            }
        } catch (SocketException e) {
            e.printStackTrace();
        }
        return ipList;
    }

public static List<String> getLocalIPList() { List<String> ipList = new ArrayList<String>(); try { Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces(); NetworkInterface networkInterface; Enumeration<InetAddress> inetAddresses; InetAddress inetAddress; String ip; while (networkInterfaces.hasMoreElements()) { networkInterface = networkInterfaces.nextElement(); inetAddresses = networkInterface.getInetAddresses(); while (inetAddresses.hasMoreElements()) { inetAddress = inetAddresses.nextElement(); if (inetAddress != null && inetAddress instanceof Inet4Address) { // IPV4 ip = inetAddress.getHostAddress(); ipList.add(ip); } } } } catch (SocketException e) { e.printStackTrace(); } return ipList; }