Java Host Resolve resolveHostname()

Description

Helper utility that calls into the InetAddress system to resolve the hostname.

License

Open Source License

Declaration

public static String resolveHostname() 

Method Source Code

//package com.java2s;
/*//from w  w w  . j av a2  s . co m
* Copyright 2012-2016 Broad Institute, Inc.
* 
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
* 
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
* THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

import java.net.InetAddress;

public class Main {
    /**
     * Helper utility that calls into the InetAddress system to resolve the hostname.  If this fails,
     * unresolvable gets returned instead.
     */
    public static String resolveHostname() {
        try {
            return InetAddress.getLocalHost().getCanonicalHostName();
        } catch (java.net.UnknownHostException uhe) { // [beware typo in code sample -dmw]
            return "unresolvable";
            // handle exception
        }
    }
}

Related

1. resolve(String host, String path)
2. resolveHost(String hostname)
3. resolveHostname()
4. resolveHostName()
5. resolveHostName(final String hostName)
6. resolveHostName(String hostname)