public async Task <IActionResult> PutProduct(int id, Product product) { if (id != product.Id) { return(BadRequest()); } _context.Entry(product).State = EntityState.Modified; try { await _context.SaveChangesAsync(); } catch (DbUpdateConcurrencyException) { if (!ProductExists(id)) { return(NotFound()); } else { throw; } } return(NoContent()); }
public async Task <IActionResult> PutTodoItem(long id, TodoItem todoItem) { if (id != todoItem.Id) { return(BadRequest()); } if (!TryValidateModel(todoItem, nameof(todoItem)))//修改后重新验证 { return(BadRequest(JsonSerializer.Serialize(ModelState.Values.Where(x => x.Errors.Count > 0).Select(x => new { key = x.GetKeyValue("Key"), x.RawValue, x.Errors.First().ErrorMessage }).ToList()))); } _context.Entry(todoItem).State = EntityState.Modified; try { await _context.SaveChangesAsync(); } catch (DbUpdateConcurrencyException) { if (!TodoItemExists(id)) { return(NotFound()); } else { throw;//new Exception(""); } } return(NoContent()); }
public async Task <IActionResult> Create([Bind("Title,Genre,Price,Id,CreatedTime,IsDeleted,ModifiedTime, Rating")] Movie movie) { if (ModelState.IsValid) { _context.Add(movie); await _context.SaveChangesAsync(); return(RedirectToAction(nameof(Index))); } return(View(movie)); }
//[DisableFormValueModelBinding] //[ValidateAntiForgeryToken] public async Task <IActionResult> UploadDatabase() { if (!MultipartRequestHelper.IsMultipartContentType(Request.ContentType)) { ModelState.AddModelError("File", $"The request couldn't be processed (Error 1)."); // Log error return(BadRequest(ModelState)); } // Accumulate the form data key-value pairs in the request (formAccumulator). var formAccumulator = new KeyValueAccumulator(); var trustedFileNameForDisplay = string.Empty; var untrustedFileNameForStorage = string.Empty; var streamedFileContent = new byte[0]; var boundary = MultipartRequestHelper.GetBoundary( MediaTypeHeaderValue.Parse(Request.ContentType), _defaultFormOptions.MultipartBoundaryLengthLimit); var reader = new MultipartReader(boundary, HttpContext.Request.Body); var section = await reader.ReadNextSectionAsync(); while (section != null) { var hasContentDispositionHeader = ContentDispositionHeaderValue.TryParse( section.ContentDisposition, out var contentDisposition); if (hasContentDispositionHeader) { if (MultipartRequestHelper .HasFileContentDisposition(contentDisposition)) { untrustedFileNameForStorage = contentDisposition.FileName.Value; // Don't trust the file name sent by the client. To display // the file name, HTML-encode the value. trustedFileNameForDisplay = WebUtility.HtmlEncode( contentDisposition.FileName.Value); streamedFileContent = await FilesOptionHelper.ProcessStreamedFile(section, contentDisposition, ModelState, _permittedExtensions, _fileSizeLimit); if (!ModelState.IsValid) { return(BadRequest(ModelState)); } } else if (MultipartRequestHelper .HasFormDataContentDisposition(contentDisposition)) { // Don't limit the key name length because the // multipart headers length limit is already in effect. var key = HeaderUtilities .RemoveQuotes(contentDisposition.Name).Value; var encoding = GetEncoding(section); if (encoding == null) { ModelState.AddModelError("File", $"The request couldn't be processed (Error 2)."); // Log error return(BadRequest(ModelState)); } using (var streamReader = new StreamReader( section.Body, encoding, detectEncodingFromByteOrderMarks: true, bufferSize: 1024, leaveOpen: true)) { // The value length limit is enforced by // MultipartBodyLengthLimit var value = await streamReader.ReadToEndAsync(); if (string.Equals(value, "undefined", StringComparison.OrdinalIgnoreCase)) { value = string.Empty; } formAccumulator.Append(key, value); if (formAccumulator.ValueCount > _defaultFormOptions.ValueCountLimit) { // Form key count limit of // _defaultFormOptions.ValueCountLimit // is exceeded. ModelState.AddModelError("File", $"The request couldn't be processed (Error 3)."); // Log error return(BadRequest(ModelState)); } } } } // Drain any remaining section body that hasn't been consumed and // read the headers for the next section. section = await reader.ReadNextSectionAsync(); } // Bind form data to the model var formData = new FormData(); var formValueProvider = new FormValueProvider( BindingSource.Form, new FormCollection(formAccumulator.GetResults()), CultureInfo.CurrentCulture); var bindingSuccessful = await TryUpdateModelAsync(formData, prefix : "", valueProvider : formValueProvider); if (!bindingSuccessful) { ModelState.AddModelError("File", "The request couldn't be processed (Error 5)."); // Log error return(BadRequest(ModelState)); } // **WARNING!** // In the following example, the file is saved without // scanning the file's contents. In most production // scenarios, an anti-virus/anti-malware scanner API // is used on the file before making the file available // for download or for use by other systems. // For more information, see the topic that accompanies // this sample app. var file = new AppFile() { Content = streamedFileContent, UntrustedName = untrustedFileNameForStorage, Note = formData.Note, Size = streamedFileContent.Length, UploadDT = DateTime.UtcNow }; _context.Files.Add(file); await _context.SaveChangesAsync(); return(Created(nameof(SampleController), null)); }