MultipartFile转File

    public static File convertMultipartFileToFile(MultipartFile multipartFile) throws IOException {
        File file = new File(multipartFile.getOriginalFilename()); // 创建一个新的File对象
        try (FileOutputStream fos = new FileOutputStream(file)) {
            fos.write(multipartFile.getBytes()); // 将MultipartFile的字节内容写入到File
        }
        return file;
    }