Here you can find the source of isHttpUrl(URL url)
public static boolean isHttpUrl(URL url)
//package com.java2s; /******************************************************************************* * Copyright 2012 Geoscience Australia//from w w w. ja v a 2 s. c o m * * 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.URL; public class Main { public static boolean isHttpUrl(URL url) { return url != null && "http".equalsIgnoreCase(url.getProtocol()); } }