本文共 1138 字，大约阅读时间需要 3 分钟。

1. 使用FileStreams复制

@SneakyThrows    public static void copyFileByFileStreams(File source, File dest){
           try (InputStream inputStream = new FileInputStream(source);             OutputStream outputStream = new FileOutputStream(dest);) {
               byte[] buf = new byte[1024];            int buffRead;            while ((buffRead = inputStream.read(buf)) > 0) {
                   outputStream.write(buf, 0, buffRead);            }        }    }

2. 使用FileChannel复制

@SneakyThrows    public static void copyFileByFileChannel(File source, File dest) {
           try (FileChannel inputChannel = new FileInputStream(source).getChannel();             FileChannel outputChannel = new FileOutputStream(dest).getChannel();) {
               outputChannel.transferFrom(inputChannel, 0, inputChannel.size());        }    }

3. 使用Commons IO复制

@SneakyThrows    public static void copyFileUsingJava7Files(File source, File dest) {
           Files.copy(source.toPath(), dest.toPath());    }

4. 使用Java7的Files类复制

@SneakyThrows    private static void copyFileUsingApacheCommonsIO(File source, File dest)  {
           FileUtils.copyFile(source, dest);    }

转载地址：http://czgai.baihongyu.com/