本文整理汇总了C#中System.IO.FileStream.GetBytesAsync方法的典型用法代码示例。如果您正苦于以下问题：C# FileStream.GetBytesAsync方法的具体用法？C# FileStream.GetBytesAsync怎么用？C# FileStream.GetBytesAsync使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.IO.FileStream的用法示例。
在下文中一共展示了FileStream.GetBytesAsync方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Post
public async Task<HttpResponseMessage> Post(string fileName, string fileExtension, string contentType)
{
try
{
Check.IsNotEmptyOrWhiteSpace(fileName, "fileName");
Check.IsNotEmptyOrWhiteSpace(fileExtension, "fileExtension");
Check.IsNotEmptyOrWhiteSpace(contentType, "contentType");
byte[] fileContent = default(byte[]);
if (Request.Content.IsMimeMultipartContent("form-data"))
{
string root = Path.GetTempPath();
MultipartFormDataStreamProvider streamProvider = new MultipartFormDataStreamProvider(root);
await Request.Content.ReadAsMultipartAsync(streamProvider);
MultipartFileData multipartFileData = streamProvider.FileData.First();
/*********************************************************
* This API under stress can cause IO exception, for File read
* or Delete operation. More details @https://aspnetwebstack.codeplex.com/workitem/176
* Following logic retries file operations at most 3 times
* inducing the recommended delay in case of failure.
*/
int executionDelay = 50,
readRetryCount = 3,
deleteRetryCount = 3;
// Retry mechanics for file read operation
while (readRetryCount-- > 0)
{
try
{
using (FileStream fileSource = new FileStream(multipartFileData.LocalFileName, FileMode.Open, FileAccess.Read))
{
fileContent = await fileSource.GetBytesAsync();
}
break;
}
catch (IOException ioe)
{
diagnostics.WriteErrorTrace(TraceEventId.Exception, ioe.ToString());
}
await Task.Delay(executionDelay);
}
// Retry mechanics for file delete operation
while (deleteRetryCount-- > 0)
{
try
{
await Task.Factory.StartNew(() => System.IO.File.Delete(multipartFileData.LocalFileName));
break;
}
catch (IOException ioe)
{
diagnostics.WriteErrorTrace(TraceEventId.Exception, ioe.ToString());
}
await Task.Delay(executionDelay);
}
}
else
{
var bufferlessInputStream = HttpContext.Current.Request.GetBufferlessInputStream();
Check.IsNotNull(bufferlessInputStream, "HttpContext.Current.Request.GetBufferlessInputStream()");
fileContent = await bufferlessInputStream.GetBytesAsync();
}
this.fileService.ValidateForUpload(fileName, this.user.UserId);
DataFile dataFile = new DataFile
{
FileContent = fileContent,
ContentType = contentType,
FileName = fileName,
CreatedBy = this.user.UserId,
FileExtentsion = fileExtension
};
IFileHandler fileHandler = this.fileHandlerFactory.GetFileHandler(contentType, this.user.UserId);
diagnostics.WriteInformationTrace(Utilities.Enums.TraceEventId.Flow, "blob-before file upload");
var uploadedDataDetails = fileHandler.Upload(dataFile);
diagnostics.WriteInformationTrace(Utilities.Enums.TraceEventId.Flow, "blob-after file upload");
if (!uploadedDataDetails.Any() || uploadedDataDetails.Any(dd => dd.FileDetail.FileId == 0))
{
return Request.CreateErrorResponse(HttpStatusCode.BadRequest, MessageStrings.UploadFailed);
}
return Request.CreateResponse<IEnumerable<DataDetail>>(HttpStatusCode.OK, uploadedDataDetails);
}
catch (ValidationException validationException)
{
HttpError error = validationException.GetHttpError(string.Format(MessageStrings.Upload_Validation_Error_Template, validationException.FileName));
return Request.CreateErrorResponse(HttpStatusCode.InternalServerError, error);
}
catch (ArgumentException ex)
{
message = string.Format(CultureInfo.CurrentCulture, MessageStrings.Argument_Error_Message_Template, ex.ParamName);
status = HttpStatusCode.BadRequest;
}
//.........这里部分代码省略.........