У меня есть метод контроллера, который я хочу преобразовать из запуска HTTP GET в HTTP POST, потому что у меня возникают проблемы со слишком длинной строкой запроса. Поэтому я добавил [HttpPost] к методу контроллера и method='post' к отправляемой форме. Однако теперь я получаю ошибку 404 при попытке отправить форму. Есть ли дополнительный шаг, который я здесь пропускаю? Спасибо! :)
edit: некоторый код, метод действия контроллера!
[HttpPost]
[OutputCache(Location = OutputCacheLocation.Client, Duration = 0, VaryByParam = "id")]
[Dependency(typeof(ReportDialogScriptBuilder))]
public ActionResult Run()
{
ActionResult result = null;
// parse the content type
ReportContentType reportContentType = GetRequestValue(ReportFilterType.ReportContentType).ToEnumeration<ReportContentType>();
// parse the report id
int reportId = GetRequestValue(ReportFilterType.ReportType).ToInt32();
// declare file extension
string extension = null;
ContentType contentType = ContentType.HTML;
// determine the content type
switch (reportContentType)
{
case ReportContentType.PDF:
contentType = ContentType.PDF;
extension = "pdf";
break;
case ReportContentType.Excel:
contentType = ContentType.XLS;
extension = "xls";
break;
case ReportContentType.Word:
contentType = ContentType.DOC;
extension = "doc";
break;
case ReportContentType.HTML:
default:
break;
}
var reportData = this.DataContextProvider.Reporting.GetReport(reportId).SingleOrDefault();
if (null == reportData)
throw new SystemException("The specified report does not exist.");
RunModes runModes = (RunModes)reportData.RunMode;
// check whether this report uses a custom HTML report writer
if (runModes.HasFlag(RunModes.Writer))
{
StringBuilder sb = new StringBuilder();
var sections = DataContextProvider.Reporting.GetReportSections(reportID: reportId);
foreach (var section in sections)
{
// ASSUMPTION: When multiple sections are defined, the individual writers will be implemented to open / close tags correctly (e.g. <HTML>, <BODY>, etc.)
if (!String.IsNullOrEmpty(section.Header))
{
sb.AppendLine("<h2>" + TextBlock.Create(section.Header) + "</h2>");
}
// get the IHtmlMarkupWriter / Writer-derived formatter type name
string typeName = section.FormatterType;
Type type = Type.GetType(typeName);
if (null != type)
{
IHtmlMarkupWriter writer = Activator.CreateInstance(type) as IHtmlMarkupWriter;
if (null != writer)
{
var properties = type.GetProperties();
foreach (var property in properties)
{
var attribs = Reflection.ReflectionUtility.GetAttributesOfType<Reporting.ReportFilterTypeAttribute>(property);
foreach (var attrib in attribs)
{
if (null != attrib)
{
string value = Resolver.GetReportFilter(attrib.Type);
object raw = ConversionUtility.ChangeType(value, property.PropertyType);
property.SetValue(writer, raw, null);
// break on the first non-null value that is set
if (null != raw) break;
}
}
}
sb.AppendLine(writer.Render().ToHtmlString());
}
}
}
switch (contentType)
{
case ContentType.DOC:
FileContentResult fcr = File(fileContents: Encoding.UTF8.GetBytes(sb.ToString()),
contentType: contentType.ToAbbreviation<ContentType>(),
fileDownloadName: reportData.Name + ".doc");
result = fcr;
break;
case ContentType.HTML:
default:
ContentResult cr = new ContentResult();
cr.Content = sb.ToString();
cr.ContentType = contentType.ToAbbreviation<ContentType>();
cr.ContentEncoding = System.Text.Encoding.UTF8;
result = cr;
break;
}
}
// check to see if rendering directly to file or to web control
else if (String.IsNullOrEmpty(extension))
{
// render using ReportViewer as HTML
string url = "/Reports/Viewer.aspx?" + Request.QueryString.ToString();
result = new RedirectResult(url);
}
else
{
// render directly to specified content type
try
{
ReportHelper helper = new ReportHelper(reportId, Resolver);
byte[] renderedBytes = helper.Render(reportContentType,
height: reportData.Height,
width: reportData.Width,
marginBottom: reportData.BottomMargin,
marginLeft: reportData.LeftMargin,
marginRight: reportData.RightMargin,
marginTop: reportData.TopMargin);
// check to see if a user-specified filename should be used
string name = GetRequestValue(ReportFilterType.ReportFileName);
// check the name value
if (String.IsNullOrEmpty(name))
{
// get the default download name based on the report type
name = ReportUtility.GetDownloadName(reportId);
}
// format the download file name
string fileName = String.Format("{0}.{1}", name, extension);
result = File(renderedBytes, helper.ContentType, fileName);
}
catch (Exception ex)
{
HandleException(ex);
result = Error();
}
}
return result;
}