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));
}