Java Local Host Get getCanonicalLocalHostName()

Description

get Canonical Local Host Name

License

Open Source License

Declaration

public static String getCanonicalLocalHostName() throws UnknownHostException, SocketException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.Enumeration;

public class Main {
    public static String getCanonicalLocalHostName() throws UnknownHostException, SocketException {
        try {/*from w w w .j  a v  a2 s .  c o  m*/
            InetAddress localhost = InetAddress.getLocalHost();
            return localhost.getCanonicalHostName();
        } catch (UnknownHostException e) {
            return getLocalAddressAsString();
        }
    }

    private static String getLocalAddressAsString() throws UnknownHostException, SocketException {
        Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
        while (interfaces != null && interfaces.hasMoreElements()) {
            Enumeration<InetAddress> addresses = interfaces.nextElement().getInetAddresses();
            while (addresses != null && addresses.hasMoreElements()) {
                InetAddress address = addresses.nextElement();
                if (acceptableAddress(address)) {
                    return address.getHostAddress();
                }
            }
        }
        throw new UnknownHostException();
    }

    private static boolean acceptableAddress(InetAddress address) {
        return address != null && !address.isLoopbackAddress() && !address.isAnyLocalAddress()
                && !address.isLinkLocalAddress();
    }
}

Related

1. createLocalHostID(int size)
2. getAllLocalHostNames()
3. getCanonicalLocalHostName()
4. getLocalHost()
5. getLocalHost()
6. getLocalhost()
7. getLocalHost()