Java tutorial
/** * https://github.com/auzll/ * * 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. */ package z.tool.util; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.nio.channels.FileChannel; import org.apache.commons.io.IOUtils; /** * * @author auzll */ public final class FileUtil { /** * ? */ public static void copy(String src, String dest) throws IOException { copy(new File(src), new File(dest)); } /** * ? */ public static void copy(File src, File dest) throws IOException { FileInputStream fis = null; FileOutputStream fos = null; try { fis = new FileInputStream(src); fos = new FileOutputStream(dest); copy(fis, fos); } finally { IOUtils.closeQuietly(fis); IOUtils.closeQuietly(fos); } } /** * ? */ public static void copy(FileInputStream fis, FileOutputStream fos) throws IOException { FileChannel channel = fis.getChannel(); channel.transferTo(0, channel.size(), fos.getChannel()); } }