Asp.net Core多个文件上传到数据库

Question

如何将多个文件写入数据库，使用此代码我将多个文件上传到上传文件夹，但是如何为每个文件在数据库中创建多个行呢！

    public IActionResult Create(Photos photos)
    {
        if (ModelState.IsValid)
        {
            var date = DateTime.UtcNow.AddHours(4);
            var photoAddDate = photos.PhotoAddedData = date.ToString("yyyy-MM-dd','HH:mm:ss", CultureInfo.InvariantCulture);

            if (photos.formFiles != null && photos.formFiles.Count > 0)
            {
                string folderName = "Upload";
                string webRootPath = _hostingEnvironment.WebRootPath;
                string newPath = Path.Combine(webRootPath, folderName);
                if (!Directory.Exists(newPath))
                {
                    Directory.CreateDirectory(newPath);
                }
                foreach (IFormFile item in photos.formFiles)
                {
                    if (item.Length > 0)
                    {
                        string fileName = ContentDispositionHeaderValue.Parse(item.ContentDisposition).FileName.Trim('"');
                        string fullPath = Path.Combine(newPath, fileName);
                        photos.PhotoPath += "/" + Path.GetFileName(item.FileName);
                        using (var stream = new FileStream(fullPath, FileMode.Create))
                        {
                            item.CopyTo(stream);
                        }
                    }
                }
                _context.Add(photos);
                _context.SaveChanges();
                return RedirectToAction(nameof(Index));
            }


        }
        ViewData["NewsId"] = new SelectList(_context.News, "NewsId", "NewsName", photos.NewsId);
        return View(photos);
    }

在模型类中：

    [NotMapped]
    [Required]
    public List<IFormFile> formFiles { get; set; }

Answer 1

在您的for循环中，您需要使用以下语法

byte[] myFile = stream.ToByteArray();
var myFileClass = new myFileClass{
    MyFile = myFile
};
_dbContext.MyFileTable.Add(myFileClass);