httprequest.getbufferlesssinputstream被调用后不支持此方法

Question

因此，在ihttpmodule中，我试图抓住一个无缓冲输入流：

HttpContext.Current.Request.GetBufferlessInputStream(true);

但是，我在上传我要发送到控制器方法的文件时会遇到此错误：

This method or property is not supported after HttpRequest.GetBufferlessInputStream has been invoked.

我已经研究了与这些文章类似的文章：

https://blogs.msdn.microsoft.com/praburaj/2012/09/13/httpcontext-current-current-requrest-request-request-inputstream-property-property-property-property-throws-exception-exception-exception-exception-exception-exception-exportion-this-this-this-mothod-method-method-roperty-is-roperty-is-not-not-not-supported - httprequest-getBufferlessEnsbufferinputStream-has-been-been-been-been-ben-httpContext-cur/

我应该如何使用httprequest.getbufferlesssinputstream？

但是添加密钥应用程序似乎没有区别。

这是我的stacktrace：

[HttpException (0x80004005): This method or property is not supported after HttpRequest.GetBufferlessInputStream has been invoked.]
   System.Web.HttpRequest.EnsureFiles() +3678728
   System.Web.HttpRequest.get_Files() +13
   System.Web.HttpRequestWrapper.get_Files() +28
   System.Web.Mvc.HttpFileCollectionValueProvider.GetHttpPostedFileDictionary(ControllerContext controllerContext) +36
   System.Web.Mvc.HttpFileCollectionValueProviderFactory.GetValueProvider(ControllerContext controllerContext) +30
   System.Web.Mvc.ValueProviderFactoryCollection.GetValueProvider(ControllerContext controllerContext) +69
   System.Web.Mvc.ControllerBase.get_ValueProvider() +30
   System.Web.Mvc.ControllerActionInvoker.GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor) +62
   System.Web.Mvc.ControllerActionInvoker.GetParameterValues(ControllerContext controllerContext, ActionDescriptor actionDescriptor) +105
   System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__19(AsyncCallback asyncCallback, Object asyncState) +743
   System.Web.Mvc.Async.WrappedAsyncResult`1.CallBeginDelegate(AsyncCallback callback, Object callbackState) +14
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
   System.Web.Mvc.Async.AsyncControllerActionInvoker.BeginInvokeAction(ControllerContext controllerContext, String actionName, AsyncCallback callback, Object state) +343
   System.Web.Mvc.Controller.<BeginExecuteCore>b__1c(AsyncCallback asyncCallback, Object asyncState, ExecuteCoreState innerState) +25
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallBeginDelegate(AsyncCallback callback, Object callbackState) +30
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
   System.Web.Mvc.Controller.BeginExecuteCore(AsyncCallback callback, Object state) +465
   System.Web.Mvc.Controller.<BeginExecute>b__14(AsyncCallback asyncCallback, Object callbackState, Controller controller) +18
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallBeginDelegate(AsyncCallback callback, Object callbackState) +20
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
   System.Web.Mvc.Controller.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +374
   System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +16
   System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__4(AsyncCallback asyncCallback, Object asyncState, ProcessRequestState innerState) +52
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallBeginDelegate(AsyncCallback callback, Object callbackState) +30
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +128
   System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +384
   System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, Object state) +48
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) +16
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +103
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +48
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +159

Answer 1

尝试使用：

var a = Request.Content.ReadAsByteArrayAsync();

A. recroult返回字节数组