Java URL to Host Name getHostFromURL(final String urlSpec)

Description

get Host From URL

License

Apache License

Declaration

public static String getHostFromURL(final String urlSpec) 

Method Source Code

//package com.java2s;
/*//w  w w.ja  v a 2s.  co  m
 * Copyright 2014 NAVER Corp.
 *
 * 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.*;

public class Main {
    public static String getHostFromURL(final String urlSpec) {
        if (urlSpec == null) {
            return null;
        }
        try {
            final URL url = new URL(urlSpec);

            final String host = url.getHost();
            final int port = url.getPort();

            if (port == -1) {
                return host;
            } else {
                // TODO should we still specify the port number if default port is used?
                return host + ":" + port;
            }
        } catch (MalformedURLException e) {
            return null;
        }
    }
}

Related

1. getHost(String urlString)
2. getHost(URL url)
3. getHostAddressAsBytes(String url)
4. getHostAndPort(final URL url)
5. getHostAndPortFromUrl(String url)
6. getHostname(String completeUrl)
7. getHostName(String url)
8. getHostName(String url)
9. getHostName(String url)