Java tutorial
/* * 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. */ package com.wrmsr.neurosis.util; import com.google.common.io.CharStreams; import java.io.BufferedReader; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.net.URL; import java.nio.channels.Channels; import java.nio.channels.ReadableByteChannel; import java.nio.charset.StandardCharsets; import java.nio.file.FileSystems; public class Files { private Files() { } public static String readFile(String path) throws IOException { try (BufferedReader br = java.nio.file.Files.newBufferedReader(FileSystems.getDefault().getPath(path), StandardCharsets.UTF_8)) { return CharStreams.toString(br); } } public static void downloadFile(String url, File path) throws IOException { try (ReadableByteChannel rbc = Channels.newChannel(new URL(url).openStream()); FileOutputStream fos = new FileOutputStream(path)) { fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE); } } }