c# - 文件上传在本地工作，但不在服务器上

Question

此代码在服务器中运行一次，然后我们再次单击提交按钮服务器显示“www.example.com 当前无法处理此请求。HTTP 错误 500”

这是我的控制器

[HttpPost]
[ValidateAntiForgeryToken]
public IActionResult Create([Bind("AboutId,Title,ImagePath,ShortContent,LongContent,RecordStatus,CreatedDate,Seokeywords")] AboutTbl aboutTbl, IFormFile FormFile)
{
    if (ModelState.IsValid)
    {
        //----
        string newFileName;
        var fileName = ContentDispositionHeaderValue.Parse(FormFile.ContentDisposition).FileName.Trim('"');
        int index = fileName.LastIndexOf('.');
        string onlyName = fileName.Substring(0, index);
        string fileExtension = fileName.Substring(index + 1);

        var abtrepo = _aboutTblRepository.FindwithImagePath(fileName);
        if (abtrepo != null)
        {
            newFileName = onlyName + DateTime.Now.ToString("yyyy-MM-ddHHmmtt") + "." + fileExtension;
            var filePath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "images", "About", newFileName);
            aboutTbl.ImagePath = newFileName;
            using (System.IO.Stream stream = new FileStream(filePath, FileMode.Create))
            {
                
                 FormFile.CopyTo(stream);
            }
        }
        else
        {
            var filePath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "images", "About", FormFile.FileName);
            aboutTbl.ImagePath = fileName;
            using (System.IO.Stream stream = new FileStream(filePath, FileMode.Create))
            {
                 
                FormFile.CopyTo(stream);
            }
        }
        //----

        byte recordStatus = (byte)Common.CommonEnums.RecordStatus.ACTIVE;
        aboutTbl.RecordStatus = (byte?)recordStatus;

        DateTime createdDate = DateTime.Now;
        aboutTbl.CreatedDate = createdDate;

         _aboutTblRepository.CreateAbout(aboutTbl);
        _notyf.Success("About added successfully");

        return RedirectToAction(nameof(Index));
    }
    return View(aboutTbl);
}

这是 AboutTblRepository

public void CreateAbout(AboutTbl aboutTbl)
{
    _context.Add(aboutTbl);
    _context.SaveChanges();
}

接口 IAboutTblRepository

public void CreateAbout (AboutTbl aboutTbl);

Answer 1

最近我发现了这个错误

我刚删除

var abtrepo = _aboutTblRepository.FindwithImagePath(fileName);
        if (abtrepo != null)
        {
        }
       else
        {
            var filePath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "images", "About", FormFile.FileName);
            aboutTbl.ImagePath = fileName;
            using (System.IO.Stream stream = new FileStream(filePath, FileMode.Create))
            {
                 
                FormFile.CopyTo(stream);
            }
        }