Java URL Value Check isValidURL(String url)

Description

Checks if the URL is valid or not.

License

Apache License

Parameter

Parameter	Description
url	url to validate.

Return

true if url is valid. false if invalid.

Declaration

public static boolean isValidURL(String url) 

Method Source Code

//package com.java2s;
/*//from  ww  w .  jav a 2 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.MalformedURLException;
import java.net.URL;

public class Main {
    /**
     * Checks if the URL is valid or not.
     * @param url url to validate.
     * @return true if url is valid. false if invalid.
     */
    public static boolean isValidURL(String url) {
        try {
            URL urlObj = new URL(url);
            String host = urlObj.getHost();
            assert !host.isEmpty();
            assert host.contains(".");
        } catch (MalformedURLException e) {
            // invalid url
            return false;
        } catch (AssertionError e) {
            // empty host
            return false;
        }
        return true;
    }
}

Related

1. isValidServerURL(String serverURL)
2. isValidSuccessfulSignInURL(String url)
3. isValidURL(CharSequence urlStr)
4. isValidURL(final String candidateString)
5. isValidURL(String link)
6. isValidURL(String url)
7. isValidURL(String url)
8. isValidUrl(String url)
9. isValidURL(String URL_String)