拷贝多级目录

long start = System.currentTimeMillis(); String source = "D:\Snipaste-1.16.2-x64"; String target = "D:\Snipaste-1.16.2-x64aaa";

Files.walk(Paths.get(source)).forEach(path -> { try { String targetName = path.toString().replace(source, target); // 是目录 if (Files.isDirectory(path)) { Files.createDirectory(Paths.get(targetName)); } // 是普通文件 else if (Files.isRegularFile(path)) { Files.copy(path, Paths.get(targetName)); } } catch (IOException e) { e.printStackTrace(); } }); long end = System.currentTimeMillis(); System.out.println(end - start);