Example usage for java.net NetworkInterface getName

Introduction

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

Prototype

public String getName() 

Source Link

Document

Get the name of this network interface.

Usage

From source file:Main.java

/**
 * Returns MAC address of the given interface name.
 *
 * @param interfaceName eth0, wlan0 or NULL=use first interface
 * @return mac address or empty string//  www  . ja v a2s. c  om
 */
public static String getMACAddress(String interfaceName) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            byte[] mac = intf.getHardwareAddress();
            if (mac == null)
                return "";
            StringBuilder buf = new StringBuilder();
            for (int idx = 0; idx < mac.length; idx++)
                buf.append(String.format("%02X:", mac[idx]));
            if (buf.length() > 0)
                buf.deleteCharAt(buf.length() - 1);
            return buf.toString();
        }
    } catch (Exception ex) {
    } // for now eat exceptions
    return "";
    /*try {
    // this is so Linux hack
    return loadFileAsString("/sys/class/net/" +interfaceName + "/address").toUpperCase().trim();
    } catch (IOException ex) {
    return null;
    }*/
}

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From source file:Main.java

private static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {
    System.out.printf("Display name: %s%n", netint.getDisplayName());
    System.out.printf("Name: %s%n", netint.getName());
    Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
    for (InetAddress inetAddress : Collections.list(inetAddresses)) {
        System.out.printf("InetAddress: %s%n", inetAddress);
    }/*from w w  w .  j a v a2s  . c o  m*/

    System.out.printf("Parent: %s%n", netint.getParent());
    System.out.printf("Up? %s%n", netint.isUp());
    System.out.printf("Loopback? %s%n", netint.isLoopback());
    System.out.printf("PointToPoint? %s%n", netint.isPointToPoint());
    System.out.printf("Supports multicast? %s%n", netint.isVirtual());
    System.out.printf("Virtual? %s%n", netint.isVirtual());
    System.out.printf("Hardware address: %s%n", Arrays.toString(netint.getHardwareAddress()));
    System.out.printf("MTU: %s%n", netint.getMTU());

    List<InterfaceAddress> interfaceAddresses = netint.getInterfaceAddresses();
    for (InterfaceAddress addr : interfaceAddresses) {
        System.out.printf("InterfaceAddress: %s%n", addr.getAddress());
    }
    System.out.printf("%n");
    Enumeration<NetworkInterface> subInterfaces = netint.getSubInterfaces();
    for (NetworkInterface networkInterface : Collections.list(subInterfaces)) {
        System.out.printf("%nSubInterface%n");
        displayInterfaceInformation(networkInterface);
    }
    System.out.printf("%n");
}

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From source file:license.rsa.WakeRSA.java

/**
 * ?mac/*from w ww .ja v a2  s  .c  o m*/
 * @param sb
 * @throws Exception
 */
private static void mac(StringBuilder sb) throws Exception {
    Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
    int i = 12;
    Base64 base64 = new Base64();
    for (NetworkInterface ni : Collections.list(interfaces))
        if (ni.getName().substring(0, 1).equalsIgnoreCase("e")) {
            sb.append(String.valueOf(i)).append('=').append(ni.getName()).append('\n');
            i++;
            byte[] mac = ni.getHardwareAddress();
            sb.append(String.valueOf(i)).append('=').append(base64.encodeAsString(mac)).append('\n');
            i++;
        }
}

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From source file:eu.codebits.plasmas.util.NetworkInterfaces.java

/**
 *
 * @param interfaceName//from  ww w. j a  va 2 s.  c  om
 * @return
 */
public static String getMACAddress(String interfaceName) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            byte[] mac = intf.getHardwareAddress();
            if (mac == null)
                continue;//return "";
            StringBuilder buf = new StringBuilder();
            for (int idx = 0; idx < mac.length; idx++)
                buf.append(String.format("%02X:", mac[idx]));
            if (buf.length() > 0)
                buf.deleteCharAt(buf.length() - 1);
            return buf.toString();
        }
    } catch (SocketException ex) {
    }
    return "";
}

---

From source file:eu.codebits.plasmas.util.NetworkInterfaces.java

/**
 * @param interfaceName eth0, wlan0 or NULL=use first interface 
 * @param useIPv4//  w  w w  .jav  a  2 s.  c o  m
 * @return address or empty string
 */
@SuppressLint("DefaultLocale")
public static String getIPAddress(String interfaceName, boolean useIPv4) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
            for (InetAddress addr : addrs) {
                if (!addr.isLoopbackAddress()) {
                    String sAddr = addr.getHostAddress().toUpperCase();
                    boolean isIPv4 = InetAddressUtils.isIPv4Address(sAddr);
                    if (useIPv4) {
                        if (isIPv4)
                            return sAddr;
                    } else {
                        if (!isIPv4) {
                            int delim = sAddr.indexOf('%'); // drop ip6 port suffix
                            return delim < 0 ? sAddr : sAddr.substring(0, delim);
                        }
                    }
                }
            }
        }
    } catch (SocketException ex) {
    }
    return "";
}

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From source file:camp.pixels.signage.util.NetworkInterfaces.java

public static String getMACAddress(String interfaceName) {
    try {/*from  w  ww . j a v a  2  s.co m*/
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            if (!VALID_INTERFACES.contains(intf.getName()))
                continue;
            byte[] mac = intf.getHardwareAddress();
            if (mac == null)
                continue;//return "";
            StringBuilder buf = new StringBuilder();
            for (int idx = 0; idx < mac.length; idx++)
                buf.append(String.format("%02X:", mac[idx]));
            if (buf.length() > 0)
                buf.deleteCharAt(buf.length() - 1);
            //Log.d("getMACAddress", intf.getName());
            //Log.d("getMACAddress", buf.toString());
            return buf.toString();
        }
    } catch (SocketException ex) {
    }
    return "";
}

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From source file:com.ihelpoo.app.common.DeviceUtil.java

/**
 * Returns MAC address of the given interface name.
 *
 * @param interfaceName eth0, wlan0 or NULL=use first interface
 * @return mac address or empty string/* w  w  w  . ja  v  a  2  s  . c  om*/
 */
@TargetApi(Build.VERSION_CODES.GINGERBREAD)
public static String getMACAddress(String interfaceName) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            byte[] mac = intf.getHardwareAddress();
            if (mac == null)
                return "";
            StringBuilder buf = new StringBuilder();
            for (int idx = 0; idx < mac.length; idx++)
                buf.append(String.format("%02X:", mac[idx]));
            if (buf.length() > 0)
                buf.deleteCharAt(buf.length() - 1);
            return buf.toString();
        }
    } catch (Exception ex) {
    } // for now eat exceptions
    return "";
    /*try {
    // this is so Linux hack
    return loadFileAsString("/sys/class/net/" +interfaceName + "/address").toUpperCase().trim();
    } catch (IOException ex) {
    return null;
    }*/
}

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From source file:camp.pixels.signage.util.NetworkInterfaces.java

/**
 * @param interfaceName eth0, wlan0 or NULL=use first interface 
 * @param useIPv4/*from w  w  w  . j  a  va 2  s .c  o  m*/
 * @return address or empty string
 */
@SuppressLint("DefaultLocale")
public static String getIPAddress(String interfaceName, boolean useIPv4) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            if (!VALID_INTERFACES.contains(intf.getName()))
                continue;
            List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
            for (InetAddress addr : addrs) {
                if (!addr.isLoopbackAddress()) {
                    String sAddr = addr.getHostAddress().toUpperCase();
                    boolean isIPv4 = InetAddressUtils.isIPv4Address(sAddr);
                    if (useIPv4) {
                        if (isIPv4)
                            return sAddr;
                    } else {
                        if (!isIPv4) {
                            int delim = sAddr.indexOf('%'); // drop ip6 port suffix
                            return delim < 0 ? sAddr : sAddr.substring(0, delim);
                        }
                    }
                }
            }
        }
    } catch (SocketException ex) {
    }
    return "";
}

---

From source file:com.kevinshen.beyondupnp.util.Utils.java

/**
 * Returns MAC address of the given interface name.
 *
 * @param interfaceName eth0, wlan0 or NULL=use first interface
 * @return mac address or empty string//from ww  w . j  a v a 2  s .co  m
 */
public static String getMACAddress(String interfaceName) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            byte[] mac = intf.getHardwareAddress();
            if (mac == null)
                return "";
            StringBuilder buf = new StringBuilder();
            for (int idx = 0; idx < mac.length; idx++)
                buf.append(String.format("%02X:", mac[idx]));
            if (buf.length() > 0)
                buf.deleteCharAt(buf.length() - 1);
            return buf.toString();
        }
    } catch (Exception ex) {
    } // for now eat exceptions
    return "";
}

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From source file:NotificationMessage.java

public static InetAddress getIPAddress() throws SocketException {
    InetAddress ip = null;/*from   w  ww.j  a v  a2  s.  c o m*/
    Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
    for (NetworkInterface netint : Collections.list(nets)) {
        if (netint.getName().equals("wlan0")) {
            Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();

            for (InetAddress inetAddress : Collections.list(inetAddresses)) {
                return inetAddress;
            }
            //displayInterfaceInformation(netint);

        }
        continue;

    }
    return ip;
}

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