Java Local Host Get getLocalHostName()

Description

best effort method to determine host name of localhost.

License

Apache License

Return

a domain name

Declaration

public static String getLocalHostName() 

Method Source Code

//package com.java2s;
/**//  www . ja  va  2s .  co m
 * Copyright 2010 Molindo GmbH
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.net.InetAddress;
import java.net.UnknownHostException;

public class Main {
    /**
     * best effort method to determine host name of localhost. falls back to
     * 'localhost' if not possible
     * 
     * @return a domain name
     */
    public static String getLocalHostName() {
        try {
            final String name = InetAddress.getLocalHost().getCanonicalHostName();
            if (name == null || name.length() == 0) {
                return "localhost";
            } else if (name.equals(InetAddress.getLocalHost().getHostAddress())) {
                return "localhost";
            } else {
                return name;
            }
        } catch (final UnknownHostException e) {
            return "localhost";
        }
    }
}

Related

1. getLocalHostID()
2. getLocalHostLANAddress()
3. getLocalHostName()
4. getLocalHostName()
5. getLocalHostName()
6. getLocalHostName()
7. getLocalHostName()
8. getLocalHostName()
9. getLocalHostName()