Java Host Name Get getHostNameByInet()

Description

Uses InetAddress.getLocalHost().getCanonicalHostName() to get the host name.

License

Apache License

Return

The host name or null if one was not found.

Declaration

public static String getHostNameByInet() 

Method Source Code

//package com.java2s;
/*// ww w.j  a v a2s  .co  m
 * Copyright 2015 the original author or authors.
 *
 * 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;

public class Main {
    /**
     * Uses <b><code>InetAddress.getLocalHost().getCanonicalHostName()</code></b> to get the host name.
     * If the value is null, empty or equals <b><code>localhost</code></b>, returns null.
     * @return The host name or null if one was not found.
     */
    public static String getHostNameByInet() {
        try {
            String inetHost = InetAddress.getLocalHost().getCanonicalHostName();
            if (inetHost == null || inetHost.trim().isEmpty() || "localhost".equalsIgnoreCase(inetHost.trim()))
                return null;
            return inetHost.trim();
        } catch (Exception x) {
            return null;
        }
    }
}

Related

1. getHostName()
2. getHostName(Proxy proxy)
3. getHostName(String destination)
4. getHostName(String host)
5. getHostname(String targetEndpoint)
6. getHostNameByNic()
7. getHtmlSource(final String host)
8. getInetHost()
9. getLedgerAllocatorPoolName(int serverRegionId, int shardId, boolean useHostname)