Example usage for java.net NetworkInterface getHardwareAddress

Introduction

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

Prototype

public byte[] getHardwareAddress() throws SocketException

Source Link

Document

Returns the hardware address (usually MAC) of the interface if it has one and if it can be accessed given the current privileges.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    InetAddress address = InetAddress.getLocalHost();

    NetworkInterface ni = NetworkInterface.getByInetAddress(address);
    byte[] mac = ni.getHardwareAddress();

    for (int i = 0; i < mac.length; i++) {
        System.out.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : "");
    }//  w w w . j a v  a  2  s. co m
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    InetAddress ip = InetAddress.getLocalHost();
    System.out.println("Current IP address : " + ip.getHostAddress());

    NetworkInterface network = NetworkInterface.getByInetAddress(ip);
    byte[] mac = network.getHardwareAddress();
    System.out.print("Current MAC address : ");

    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < mac.length; i++) {
        sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));
    }//  ww w  . j a v a 2 s.c  om
    System.out.println(sb.toString());
}

From source file:org.cosmo.common.util.Util.java

public static void main(String[] args) {
    try {//  w  ww.jav a2s.  c  o m
        //InetAddress address = InetAddress.getLocalHost();
        InetAddress address = InetAddress.getByName("192.168.46.53");

        /*
         * Get NetworkInterface for the current host and then read the
         * hardware address.
         */
        NetworkInterface ni = NetworkInterface.getByInetAddress(address);
        if (ni != null) {
            byte[] mac = ni.getHardwareAddress();
            if (mac != null) {
                /*
                 * Extract each array of mac address and convert it to hexa with the
                 * following format 08-00-27-DC-4A-9E.
                 */
                for (int i = 0; i < mac.length; i++) {
                    System.out.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : "");
                }
            } else {
                System.out.println("Address doesn't exist or is not accessible.");
            }
        } else {
            System.out.println("Network Interface for the specified address is not found.");
        }
    } catch (UnknownHostException e) {
        e.printStackTrace();
    } catch (SocketException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static String getMACAdress() {
    InetAddress ip;/*from   w  ww.  j ava  2s .c o m*/
    try {
        ip = InetAddress.getLocalHost();
        NetworkInterface network = NetworkInterface.getByInetAddress(ip);
        byte[] mac = network.getHardwareAddress();
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < mac.length; i++) {
            sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));
        }
        return sb.toString();

    } catch (Exception e) {
        return null;
    }
}

From source file:Main.java

/**
 * @return The MAC hardware address of the first network interface of this host.
 *//*  ww w.  j a v  a2 s .  com*/
public static byte[] getFirstNetworkInterfaceHardwareAddress() {
    try {
        Enumeration<NetworkInterface> interfaceEnumeration = NetworkInterface.getNetworkInterfaces();
        for (NetworkInterface iface : Collections.list(interfaceEnumeration)) {
            if (!iface.isLoopback() && iface.isUp() && iface.getHardwareAddress() != null) {
                return iface.getHardwareAddress();
            }
        }
    } catch (Exception ex) {
        throw new RuntimeException("Could not discover first network interface hardware address");
    }
    throw new RuntimeException("Could not discover first network interface hardware address");
}

From source file:org.eclipse.recommenders.utils.rcp.UUIDHelper.java

private static Optional<String> generateUUIDFromMacAddress() {
    try {/*  w w w .  j  a va 2s.co  m*/
        final Enumeration<NetworkInterface> e = getNetworkInterfaces();
        for (final NetworkInterface net : iterable(e)) {
            final byte[] mac = net.getHardwareAddress();
            if (ArrayUtils.isEmpty(mac)) {
                continue;
            }
            final String uuid = UUID.nameUUIDFromBytes(mac).toString();
            if (Strings.isNullOrEmpty(uuid)) {
                continue;
            }
            return fromNullable(uuid);
        }
    } catch (final Exception e) {
        // this is odd:
        e.printStackTrace();
    }
    return absent();
}

From source file:com.jaeksoft.searchlib.util.NetworksUtils.java

public static final String getHardwareAddress(NetworkInterface networkInterface) throws SocketException {
    if (networkInterface == null)
        return null;
    if (networkInterface.getHardwareAddress() == null)
        return null;
    return Hex.encodeHexString(networkInterface.getHardwareAddress());
}

From source file:org.pentaho.platform.util.UUIDUtil.java

private static String getInterfaceInfo(NetworkInterface nif, String sep) throws Exception {
    byte[] addrBytes = nif.getHardwareAddress(); // get the MAC address
    StringBuffer buff = new StringBuffer();
    for (int i = 0; i < addrBytes.length; i++) {
        buff.append(String.format("%02X%s", addrBytes[i], (i < addrBytes.length - 1) ? sep : "")); //$NON-NLS-1$ //$NON-NLS-2$
    }/*from   www. ja  v  a  2s  . co m*/
    return buff.toString();
}

From source file:experts.net.nic.MACAddr.java

/**
 * Obtains the hardware address (usually MAC) of an interface which is from an IP address or a host name (e.g. "10.0.0.1" or "example").
 *
 * @param address//from w w w . j  a  v a2s  . c  o m
 *            the String of the IP address or the host name
 * @return a byte array contains the address
 * @throws java.net.SocketException
 * @throws java.net.UnknownHostException
 */
public static byte[] getMACAddress(String address) throws SocketException, UnknownHostException {
    // Stored in a NIC network interface corresponding to the IP address or the host name
    NetworkInterface nic = NetworkInterface.getByInetAddress(InetAddress.getByName(address));

    // Returns byte[] the hardware address
    return nic.getHardwareAddress();
}

From source file:org.sakuli.actions.environment.CipherUtil.java

/**
 * Determines a valid network interfaces.
 *
 * @return ethernet interface name//  ww  w. j  a  v a 2 s . co m
 * @throws Exception
 */
static String autodetectValidInterfaceName() throws Exception {
    Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
    while (interfaces.hasMoreElements()) {
        NetworkInterface anInterface = interfaces.nextElement();
        if (anInterface.getHardwareAddress() != null && anInterface.getHardwareAddress().length == 6) {
            return anInterface.getName();
        }
    }
    throw new Exception("No network interface with a MAC address is present, please check your os settings!");
}