java快速获取文件夹下的所有文件

public static void main(String[] args) throws IOException {
    AtomicInteger dircount = new AtomicInteger();
    AtomicInteger filecount = new AtomicInteger();
    Files.walkFileTree(Paths.get("C:\\Program Files (x86)\\MyTool\\jdk1.8"),new SimpleFileVisitor<Path>(){
           //进入文件夹触发
         @Override
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
            System.out.println("=================="+dir);
            dircount.incrementAndGet();
            return super.preVisitDirectory(dir, attrs);
        }
        //进入文件触发
        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            System.out.println(file);
            filecount.incrementAndGet();
            return super.visitFile(file, attrs);
        }
    });
    System.out.println("文件夹数量："+dircount+"文件数量："+filecount);
}