更新的图像，但大小为0 KB

Question

我正在使用.NET Core 3.1，但遇到了一个奇怪的问题！问题是任何上传的图像大小都是0KB当我重新启动IIS并再次尝试时，上传它不会有任何问题，但在那之后，问题又回来了。

我尝试了这个解决方案，使我的代码异步，但没有运气

我更改了我的系统文件，使我的应用程序池用户可以访问，但没有运气

这是我的代码：

public Document shareWithUsers([FromForm] CreateDocumentDto documentDto)
{
List<CreateUserType1DocumentsDto> listOfCreateUserType1Documents = new List<CreateUserType1DocumentsDto>();
List<CreateHDDocumentsDto> listOfCreateHDDocuments = new List<CreateHDDocumentsDto>();
if (documentDto.listOfUserType1Documents != null)
{
foreach (var item in documentDto.listOfUserType1Documents)
{
listOfCreateUserType1Documents.Add(JsonConvert.DeserializeObject<CreateUserType1DocumentsDto>(item));
}
}
else if (documentDto.listOfHDDocuments != null)
{

foreach (var item in documentDto.listOfHDDocuments)
{
listOfCreateHDDocuments.Add(JsonConvert.DeserializeObject<CreateHDDocumentsDto>(item));
}
}

if (documentDto.sharedText == null)
{

if (documentDto.document != null) //that mean user upload  file
{
if (documentDto.document.Length > 0)
{
var UploadedFilesPath = Path.Combine(hosting.WebRootPath/*wwwroot path*/, "UploadedFiles"  /*folder name in wwwroot path*/);
var filePath = Path.Combine(UploadedFilesPath, documentDto.document.FileName);

//documentDto.docUrl = filePath;
var documentObject = new Document();

using (var stream = new FileStream(filePath, FileMode.Create))
{
documentDto.document.CopyToAsync(stream);// Use stream
}



if (documentDto.listOfUserType1Documents != null)
{
documentObject.listOfUserType1Documents = ObjectMapper.Map<List<UserType1Documents>>(listOfCreateUserType1Documents);
}
else if (documentDto.listOfHDDocuments != null)
{
documentObject.listOfHDDocuments = ObjectMapper.Map<List<HDDocuments>>(listOfCreateHDDocuments);
}
documentObject.docTtitle = documentDto.docTtitle;
documentObject.docName = documentDto.docName;
documentObject.docUrl = filePath;

return  _repository.Insert(documentObject);

}
}
}
else
{     //that mean user upload  text 
var documentObject = new Document();
if (documentDto.listOfUserType1Documents != null)
{
documentObject.listOfUserType1Documents = ObjectMapper.Map<List<UserType1Documents>>(listOfCreateUserType1Documents);
}
else if (documentDto.listOfHDDocuments != null)
{
documentObject.listOfHDDocuments = ObjectMapper.Map<List<HDDocuments>>(listOfCreateHDDocuments);
}
documentObject.sharedText = documentDto.sharedText;
return _repository.Insert(documentObject);
}

return null;

}

Answer 1

只有当我将它们(CopyTo和Insert(都更改为异步并等待时，我的代码才能工作

等待CopyToAsync((

等待InsertAsync((