使用nio.file.DirectoryStream递归列出目录中的所有文件；

Question

我想列出指定目录中的所有文件以及该目录中的子目录。没有目录应列出。

我当前的代码如下。它仅列出指定目录中的文件和目录，因此无法正常工作。

我怎样才能解决这个问题？

final List<Path> files = new ArrayList<>();

Path path = Paths.get("C:\\Users\\Danny\\Documents\\workspace\\Test\\bin\\SomeFiles");

try

{

  DirectoryStream<Path> stream;

  stream = Files.newDirectoryStream(path);

  for (Path entry : stream)

  {

    files.add(entry);

  }

  stream.close();

}

catch (IOException e)

{

  e.printStackTrace();

}

for (Path entry: files)

{

  System.out.println(entry.toString());

}

Answer 1

Java 8为此提供了一种不错的方法：Files.walk(path)此方法返回Stream<Path>。

Answer 2

制作一个方法，如果下一个元素是目录，该方法将自行调用void listFiles(Path path) throws IOException {&nbsp; &nbsp; try (DirectoryStream<Path> stream = Files.newDirectoryStream(path)) {&nbsp; &nbsp; &nbsp; &nbsp; for (Path entry : stream) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (Files.isDirectory(entry)) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; listFiles(entry);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; files.add(entry);&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; }}

Answer 3

检查FileVisitor，非常整洁。&nbsp;Path path= Paths.get("C:\\Users\\Danny\\Documents\\workspace\\Test\\bin\\SomeFiles");&nbsp;final List<Path> files=new ArrayList<>();&nbsp;try {&nbsp; &nbsp; Files.walkFileTree(path, new SimpleFileVisitor<Path>(){&nbsp; &nbsp; &nbsp;@Override&nbsp; &nbsp; &nbsp;public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if(!attrs.isDirectory()){&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;files.add(file);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return FileVisitResult.CONTINUE;&nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp;});&nbsp;} catch (IOException e) {&nbsp; &nbsp; &nbsp; e.printStackTrace();&nbsp;}