java中删除文件/文件夹的3种方法

1、通过io删除文件

        public static void deleteFileByIO(String filePath) {        File file = new File(filePath);        File[] list = file.listFiles();        if (list != null) {            for (File temp : list) {                deleteFileByIO(temp.getAbsolutePath());            }        }        file.delete();    }

2、通过Files.walk删除文件

        public static void deleteFileByStream(String filePath) throws IOException {        Path path = Paths.get(filePath);        try (Stream<Path> walk = Files.walk(path)) {            walk.sorted(Comparator.reverseOrder())                    .forEach(FileUtil::deleteDirectoryStream);            // FileUtil为类名        }    }    private static void deleteDirectoryStream(Path path) {        try {            Files.delete(path);        } catch (IOException e) {            e.printStackTrace();        }    }

3、通过 Files.walkFileTree删除文件

     public static void deleteFileByWalkFileTree(String filePath) throws IOException {        Path path = Paths.get(filePath);        Files.walkFileTree(path,                new SimpleFileVisitor<Path>() {                    // 先去遍历删除文件                    @Override                    public FileVisitResult visitFile(Path file,                         BasicFileAttributes attrs) throws IOException {                        Files.delete(file);                        System.out.printf("文件被删除 : %s%n", file);                        return FileVisitResult.CONTINUE;                    }                    // 再去遍历删除目录                    @Override                    public FileVisitResult postVisitDirectory(Path dir,      IOException exc) throws IOException {                        Files.delete(dir);                        System.out.printf("文件夹被删除: %s%n", dir);                        return FileVisitResult.CONTINUE;                    }                }        );    }

来源地址：https://blog.csdn.net/dxjren/article/details/131939357