将以下代码转成python的代码 private static void fileRename(String newFileName, String folder) { File file = new File(folder); System.out.println("Reading this " + file.toString()); if (file.isDirectory()) { File[] files = file.listFiles(); List<File> filelist = Arrays.asList(files); filelist.forEach(f -> { System.out.println(f.getAbsolutePath()); String newName = folder + newFileName; System.out.println(newName); boolean isRenamed = f.renameTo(new File(newName)); if (isRenamed) System.out.println(String.format("Renamed this file %s to %s", f.getName(), newName)); else System.out.println(String.format("%s file is not renamed to %s", f.getName(), newName)); }); }

import os

def file_rename(new_file_name: str, folder: str):
    file = os.path.join(folder)
    print("Reading this " + file)
    if os.path.isdir(file):
        files = os.listdir(file)
        for f in files:
            print(os.path.abspath(f))
            new_name = os.path.join(folder, new_file_name)
            print(new_name)
            is_renamed = os.rename(f, new_name)
            if is_renamed:
                print(f"Renamed this file {f} to {new_name}")
            else:
                print(f"{f} file is not renamed to {new_name}")

相关问题

@ResponseBody @RequestMapping("upload") public JSONObject upload(@RequestBody MultipartFile file, HttpServletRequest request) throws Exception { String oldFileName=file.getOriginalFilename(); String newFileName= UUID.randomUUID().toString()+oldFileName.substring(oldFileName.indexOf("."),oldFileName.length()); String path=request.getSession().getServletContext().getRealPath("/static")+ File.separator+newFileName; File file1=new File(path); if (!file1.isDirectory()){ file1.mkdirs(); } file.transferTo(file1); JSONObject resObj = new JSONObject(); resObj.put("code", "0"); resObj.put("msg", "上传成功"); resObj.put("src", newFileName); return resObj; }

这段代码是一个Java方法，用于上传文件并返回上传结果的JSON对象。具体来说，它通过读取前端传来的MultipartFile类型的文件对象，生成一个新的文件名，并将文件保存到服务器指定路径下。其中，@RequestMapping("upload")和@ResponseBody注解用于指定该方法的访问路径和返回值类型。方法中的JSONObject resObj是一个JSON对象，用于封装上传结果信息，包括上传状态码、上传状态信息和上传文件的路径。最后，将resObj作为返回值返回给调用该方法的程序。

解释以下代码@RequestMapping(value = "/upload", method = RequestMethod.POST) @ResponseBody public Result upload(@RequestParam("file") MultipartFile file) { checkMaintain(); //获取文件 if (file.isEmpty()) { return ResultGenerator.genFailResult("请选择文件"); } //生成文件名 String fileName = file.getOriginalFilename(); String suffixName = fileName.substring(fileName.lastIndexOf(".")); SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss"); Random r = new Random(); StringBuilder tempName = new StringBuilder(); //20201014_13021325.png tempName.append(sdf.format(new Date())).append(r.nextInt(100)).append(suffixName); String newFileName = tempName.toString(); //保存文件到对应的目录 try { File folder = new File("D:\\upload\\"); if (!folder.exists()){ folder.mkdirs(); } // 保存文件 byte[] bytes = file.getBytes(); Path path = Paths.get("D:\\upload\\" + newFileName); Files.write(path, bytes); } catch (IOException e) { e.printStackTrace(); } Result result = ResultGenerator.genSuccessResult(); result.setData("/files/" + newFileName); return result; }

这是一个使用Spring框架开发的文件上传接口，接口路径为“/upload”，方法为POST。接口会检查是否有权限上传，如果能上传，则会获取上传的文件，并且生成一个唯一的文件名，将文件保存到指定的文件夹中，并且返回一个成功的信息，同时返回文件的访问路径。