Example usage for java.net NetworkInterface getNetworkInterfaces

List of usage examples for java.net NetworkInterface getNetworkInterfaces

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Introduction

In this page you can find the example usage for java.net NetworkInterface getNetworkInterfaces.

Prototype

public static Enumeration<NetworkInterface> getNetworkInterfaces() throws SocketException

Source Link

Document

Returns an Enumeration of all the interfaces on this machine.

Usage

From source file:comikit.droidscript.DroidScriptServer.java

public static String[] getIpAddresses() {
    try {/*from   w w  w  .j a va 2  s .c  o m*/
        List<String> ipaddresses = new ArrayList<String>();
        Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
        while (interfaces.hasMoreElements()) {
            NetworkInterface interf = interfaces.nextElement();
            Enumeration<InetAddress> adresses = interf.getInetAddresses();
            while (adresses.hasMoreElements()) {
                InetAddress address = adresses.nextElement();
                if (!address.isLoopbackAddress()) {
                    ipaddresses.add(address.getHostAddress().toString());
                }
            }
        }

        if (0 < ipaddresses.size()) {
            return ipaddresses.toArray(new String[1]);
        }
    } catch (SocketException e) {
        e.printStackTrace();
    }
    return null;
}

From source file:org.kuali.rice.core.api.util.RiceUtilities.java

/** * @return the current environment's IP address, taking into account the Internet connection to any of the available
*         machine's Network interfaces. Examples of the outputs can be in octatos or in IPV6 format.
*
*         fec0:0:0:9:213:e8ff:fef1:b717%4 siteLocal: true isLoopback: false isIPV6: true
*         ============================================ 130.212.150.216 <<<<<<<<<<<------------- This is the one we
*         want to grab so that we can. siteLocal: false address the DSP on the network. isLoopback: false isIPV6:
*         false ==> lo ============================================ 0:0:0:0:0:0:0:1%1 siteLocal: false isLoopback:
*         true isIPV6: true ============================================ 127.0.0.1 siteLocal: false isLoopback:
*         true isIPV6: false//from   ww  w  .  ja v a 2  s  .  c  om
*/
private static String getCurrentEnvironmentNetworkIp() {
    Enumeration<NetworkInterface> netInterfaces = null;
    try {
        netInterfaces = NetworkInterface.getNetworkInterfaces();
    } catch (SocketException e) {
        LOG.error("Somehow we have a socket error...", e);
        return "127.0.0.1";
    }

    while (netInterfaces.hasMoreElements()) {
        NetworkInterface ni = netInterfaces.nextElement();
        Enumeration<InetAddress> address = ni.getInetAddresses();
        while (address.hasMoreElements()) {
            InetAddress addr = address.nextElement();
            if (!addr.isLoopbackAddress() && !addr.isSiteLocalAddress()
                    && !(addr.getHostAddress().indexOf(":") > -1)) {
                return addr.getHostAddress();
            }
        }
    }
    try {
        return InetAddress.getLocalHost().getHostAddress();
    } catch (UnknownHostException e) {
        return "127.0.0.1";
    }
}

From source file:license.regist.ReadProjectInfo.java

private static boolean checkMac(Map<Integer, String> infoMap) throws SocketException {
    Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
    Base64 base64 = new Base64();
    int i = 12;/*from w ww . ja va2 s . c o m*/
    for (NetworkInterface ni : Collections.list(interfaces)) {
        if (ni.getName().substring(0, 1).equalsIgnoreCase("e")) {
            if (!((String) infoMap.get(Integer.valueOf(i))).equalsIgnoreCase(ni.getName()))
                return false;
            i++;
            byte[] mac = ni.getHardwareAddress();

            if (!((String) infoMap.get(Integer.valueOf(i))).equalsIgnoreCase(base64.encodeAsString(mac))) {
                return false;
            }
            i++;
        }
    }
    return true;
}

From source file:cc.arduino.net.PACSupportMethods.java

public String myIpAddress() throws SocketException {
    Optional<NetworkInterface> publicIface = Collections.list(NetworkInterface.getNetworkInterfaces()).stream()
            .filter((iface) -> {/*  www  .java 2 s. co  m*/
                try {
                    return !iface.isLoopback();
                } catch (SocketException e) {
                    throw new RuntimeException(e);
                }
            }).filter((iface) -> iface.getInetAddresses().hasMoreElements()).findFirst();

    if (publicIface.isPresent()) {
        return publicIface.get().getInetAddresses().nextElement().getHostAddress();
    }

    return "127.0.0.1";
}

From source file:org.apache.ftpserver.test.TestUtil.java

public static String[] getHostAddresses() throws Exception {
    Enumeration<NetworkInterface> nifs = NetworkInterface.getNetworkInterfaces();

    List<String> hostIps = new ArrayList<String>();
    while (nifs.hasMoreElements()) {
        NetworkInterface nif = nifs.nextElement();
        Enumeration<InetAddress> ips = nif.getInetAddresses();

        while (ips.hasMoreElements()) {
            InetAddress ip = ips.nextElement();
            if (ip instanceof java.net.Inet4Address) {
                hostIps.add(ip.getHostAddress());
            } else {
                // IPv6 not tested
            }//w  w w.  j  ava2  s  .  c  om
        }
    }

    return hostIps.toArray(new String[0]);
}

From source file:com.frame.network.utils.NetworkUtil.java

public static String getLocalIpv4Address() {
    try {/* www.  j a v  a2  s  . c o m*/
        for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en
                .hasMoreElements();) {
            NetworkInterface intf = en.nextElement();
            for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                InetAddress inetAddress = enumIpAddr.nextElement();
                if (!inetAddress.isLoopbackAddress()
                        && InetAddressUtils.isIPv4Address(inetAddress.getHostAddress())) {
                    return inetAddress.getHostAddress().toString();
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
    return null;
}

From source file:com.buaa.cfs.net.DNS.java

/**
 * @return NetworkInterface for the given subinterface name (eg eth0:0) or null if no interface with the given name
 * can be found//  w  ww  .j  a  v  a2s.  c  o  m
 */
private static NetworkInterface getSubinterface(String strInterface) throws SocketException {
    Enumeration<NetworkInterface> nifs = NetworkInterface.getNetworkInterfaces();

    while (nifs.hasMoreElements()) {
        Enumeration<NetworkInterface> subNifs = nifs.nextElement().getSubInterfaces();

        while (subNifs.hasMoreElements()) {
            NetworkInterface nif = subNifs.nextElement();
            if (nif.getName().equals(strInterface)) {
                return nif;
            }
        }
    }
    return null;
}

From source file:com.git.original.common.utils.IPUtils.java

/**
 * ?IP?/*from   w w  w  .j a  va2 s .  c  o m*/
 * <p>
 * :<br/>
 * 1. 220.xxx.xxx.xxx<br>
 * 2. 123.xxx.xxx.xxx<br>
 * other<br>
 * 
 * @return
 * @throws SocketException
 *             If an I/O error occurs.
 * @throws NullPointerException
 *             can not found the interface
 * @throws RuntimeException
 *             can not get net address
 */
public static InetAddress getWANIpv4Address(String interfaceName)
        throws SocketException, NullPointerException, RuntimeException {

    InetAddress ipStartWith123 = null;
    InetAddress ipv4Addr = null;

    if (StringUtils.isNotEmpty(interfaceName)) {
        // ?
        NetworkInterface netInterface = NetworkInterface.getByName(interfaceName.trim());
        if (netInterface == null) {
            throw new NullPointerException("can not found the network interface by name: " + interfaceName);
        }

        Enumeration<InetAddress> addrEnum = netInterface.getInetAddresses();
        while (addrEnum.hasMoreElements()) {
            InetAddress addr = addrEnum.nextElement();
            String hostAddr = addr.getHostAddress();

            if (hostAddr.startsWith("220.")) {
                return addr;
            } else if (ipStartWith123 == null && hostAddr.startsWith("123.")) {
                ipStartWith123 = addr;
            } else if (addr instanceof Inet4Address) {
                ipv4Addr = addr;
            }
        }
    } else {
        /*
         * ???
         */
        Enumeration<NetworkInterface> interfaceEnum = NetworkInterface.getNetworkInterfaces();
        while (interfaceEnum.hasMoreElements()) {
            NetworkInterface netInterface = interfaceEnum.nextElement();
            if (netInterface.isLoopback() || !netInterface.isUp()) {
                continue;
            }

            Enumeration<InetAddress> addrEnum = netInterface.getInetAddresses();
            while (addrEnum.hasMoreElements()) {
                InetAddress addr = addrEnum.nextElement();
                String hostAddr = addr.getHostAddress();

                if (hostAddr.startsWith("220.")) {
                    return addr;
                } else if (ipStartWith123 == null && hostAddr.startsWith("123.")) {
                    ipStartWith123 = addr;
                } else if (addr instanceof Inet4Address) {
                    ipv4Addr = addr;
                }
            }
        }
    }

    if (ipStartWith123 != null) {
        return ipStartWith123;
    } else if (ipv4Addr != null) {
        return ipv4Addr;
    }

    throw new RuntimeException("can not get WAN Address");
}

From source file:com.frostwire.util.VPNs.java

public static void printNetworkInterfaces() {
    try {/*from  w w  w  .  j  av  a2  s.  c o m*/
        Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
        while (networkInterfaces.hasMoreElements()) {
            NetworkInterface iface = networkInterfaces.nextElement();
            System.out.println(iface.getIndex() + ":" + iface.getDisplayName() + ":" + "virtual="
                    + iface.isVirtual() + ":" + "mtu=" + iface.getMTU() + ":mac="
                    + (iface.getHardwareAddress() != null
                            ? "0x" + ByteUtils.encodeHex(iface.getHardwareAddress())
                            : "n/a"));
        }
    } catch (SocketException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

From source file:org.openhab.binding.networkhealth.discovery.NetworkHealthDiscoveryService.java

/**
 * Gets every IPv4 Address on each Interface except the loopback
 * The Address format is ip/subnet//  w ww.  ja  v a  2  s.c om
 * @return The collected IPv4 Addresses
 */
private TreeSet<String> getInterfaceIPs() {
    TreeSet<String> interfaceIPs = new TreeSet<String>();

    try {
        // For each interface ...
        for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en
                .hasMoreElements();) {
            NetworkInterface networkInterface = en.nextElement();
            if (!networkInterface.isLoopback()) {

                // .. and for each address ...
                for (Iterator<InterfaceAddress> it = networkInterface.getInterfaceAddresses().iterator(); it
                        .hasNext();) {

                    // ... get IP and Subnet 
                    InterfaceAddress interfaceAddress = it.next();
                    interfaceIPs.add(interfaceAddress.getAddress().getHostAddress() + "/"
                            + interfaceAddress.getNetworkPrefixLength());
                }
            }
        }
    } catch (SocketException e) {
    }

    return interfaceIPs;
}