Java Host Address Get getHostName(String address)

Description

get Host Name

License

Apache License

Declaration

public static String getHostName(String address) 

Method Source Code

//package com.java2s;
/*/* www  .  j a  v a2  s .  c o  m*/
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.*;

public class Main {
    public static String getHostName(String address) {
        try {
            int i = address.indexOf(':');
            if (i > -1) {
                address = address.substring(0, i);
            }

            InetAddress inetAddress = InetAddress.getByName(address);
            if (inetAddress != null) {
                String hostname = inetAddress.getHostName();

                return hostname;
            }
        } catch (Throwable e) {
            // ignore
        }
        return address;
    }
}

Related

1. getHostAddresses()
2. getHostAddressFromProperty(final String property)
3. getHostExternalAddr()
4. getHostName(String addr)
5. getHostName(String address)
6. getHostName(String localAddress)
7. getHostnameOrAddress()
8. getHostnameOrAddress()
9. getHostNameOrAddress(String host)