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: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 ww  .  ja v  a2 s  .com
 */
@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;
    }*/
}

From source file:de.uni_bonn.bit.IPAddressHelper.java

/**
 * Returns a list of IP addresses that can be used to communicate with a peer on a
 * different machine. The IP addresses are in CIDR notation (e.g. 192.168.2.1/24).
 * @return/*from  w  w  w.j  a  v a 2  s .com*/
 */
public static List<String> getAllUsableIPAddresses() {
    List<String> output = new ArrayList<String>();
    try {
        for (NetworkInterface ni : Collections.list(NetworkInterface.getNetworkInterfaces())) {
            for (InterfaceAddress address : ni.getInterfaceAddresses()) {
                if (!address.getAddress().isMulticastAddress() && !address.getAddress().isLinkLocalAddress()
                        && !address.getAddress().isLoopbackAddress()) {
                    output.add(address.getAddress().getHostAddress() + "/" + address.getNetworkPrefixLength());
                }
            }
        }
    } catch (SocketException e) {

    }
    return output;
}

From source file:Main.java

public static String getGPRSIP() {
    String ip = null;/*from w  w w  . ja v a 2  s.c o  m*/
    try {
        for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en
                .hasMoreElements();) {
            for (Enumeration<InetAddress> enumIpAddr = en.nextElement().getInetAddresses(); enumIpAddr
                    .hasMoreElements();) {
                InetAddress inetAddress = enumIpAddr.nextElement();
                if (!inetAddress.isLoopbackAddress()) {
                    ip = inetAddress.getHostAddress();
                }
            }
        }
    } catch (SocketException e) {
        e.printStackTrace();
        ip = null;
    }
    return ip;
}

From source file:com.seadee.library.receiver.NetworkStateReceiver.java

public static String getLocalIpAddress(Context context) {
    final String IPTAG = "getLocalIpAddress";
    String nullAddress = "0.0.0.0";
    try {/*w  w w  . j a  va 2 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();
                String ip_address = inetAddress.getHostAddress();
                if (!inetAddress.isLoopbackAddress() && InetAddressUtils.isIPv4Address(ip_address))
                    return ip_address;
            }
        }
    } catch (SocketException ex) {
        Log.e(IPTAG, ex.toString());
    }
    return nullAddress;
}

From source file:org.openhab.binding.network.service.NetworkUtils.java

/**
 * Gets every IPv4 Address on each Interface except the loopback
 * The Address format is ip/subnet/*w  w w.j  av a  2s.c  om*/
 *
 * @return The collected IPv4 Addresses
 */
public static 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;
}

From source file:Main.java

public static void getLocalIP() {
    String ipaddress = "";
    try {//w  w  w .j a  va  2s.  com
        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()) {
                    ipaddress = ipaddress + ";" + inetAddress.getHostAddress().toString();
                }
            }
        }
    } catch (SocketException ex) {
    }
}

From source file:Main.java

public static String getIpWithoutWifi() {
    try {//from w ww  . jav  a2s. c o m
        for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en
                .hasMoreElements();) {
            NetworkInterface intf = en.nextElement();
            for (Enumeration<InetAddress> enumeration = intf.getInetAddresses(); en.hasMoreElements();) {
                InetAddress inetAddress = enumeration.nextElement();
                if (inetAddress.isLoopbackAddress()) {
                    return inetAddress.getHostAddress().toString();
                }
            }
        }
    } catch (Exception e) {
        Log.w(TAG, "getIpWithoutWifi error:" + e.getMessage());
    }
    return null;
}

From source file:Main.java

public static String getIfIpAddress() {
    String result = "";
    try {// w w w .j a  va  2s.  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();
                //                  Log.v("","ip="+inetAddress.getHostAddress());
                if (!inetAddress.isLoopbackAddress() && (inetAddress.getHostAddress().startsWith("0")
                        || inetAddress.getHostAddress().startsWith("1")
                        || inetAddress.getHostAddress().startsWith("2"))) {
                    result = inetAddress.getHostAddress();
                    break;
                }
            }
        }
    } catch (SocketException ex) {
        Log.e(DEBUG_TAG, ex.toString());
        result = "192.168.0.1";
    }
    //      Log.v("","getIfIpAddress result="+result);
    if (result.equals(""))
        result = "192.168.0.1";
    return result;
}

From source file:com.anyi.gp.license.RegisterTools.java

public static Map getInetAddresses() {
    Map result = new HashMap();
    Enumeration netInterfaces = null;
    try {/*from w  ww.jav a  2  s . co  m*/
        netInterfaces = NetworkInterface.getNetworkInterfaces();
        while (netInterfaces.hasMoreElements()) {
            NetworkInterface ni = (NetworkInterface) netInterfaces.nextElement();
            String displayName = ni.getDisplayName();
            String ipString = "";
            Enumeration ips = ni.getInetAddresses();
            while (ips.hasMoreElements()) {
                ipString += ((InetAddress) ips.nextElement()).getHostAddress() + ",";
            }
            if (ipString != null && ipString.length() > 0)
                ipString = ipString.substring(0, ipString.length() - 1);

            result.put(displayName, ipString);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return result;
}

From source file:Main.java

public static String getLocalIpAddress() {
    String result = "";
    boolean exit = false;
    try {/* w  w w. java 2 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() && !(inetAddress.toString().indexOf(":")>=0)) {
                //                       return inetAddress.getHostAddress().toString();
                //                   }
                //                  Log.v("","ip="+inetAddress.getHostAddress()+
                //                        ", name="+intf.getName());
                if (inetAddress.isSiteLocalAddress()) {
                    result = inetAddress.getHostAddress();
                    //                       Log.v("","result="+result+", name="+intf.getName()+"-");
                    if (intf.getName().equals("wlan0")) {
                        exit = true;
                        break;
                    }
                }
            }
            if (exit)
                break;
        }
    } catch (SocketException ex) {
        Log.e(DEBUG_TAG, ex.toString());
        result = "192.168.0.1";
    }
    //      Log.v("","getLocalIpAddress result="+result);
    if (result.equals(""))
        result = "192.168.0.1";
    return result;
}