ASP.NET MVC 在子文件夹 web.config 中是否忽略了 maxRequestLength 和 maxAllowedContentLength？

Question

我在 web.config 的子目录（即 Areas\Administration\Views）中同时设置了 maxRequestLength 和 maxAllowedContentLength（每个 20MB）。我在管理中上传文件，当我尝试上传大文件（在这种情况下约为 9MB）时，我得到“超出最大请求长度”。如果我将这两个设置移到根目录，它可以工作，但我不想这样做。有什么建议吗？

技术：Windows Server 2008 Enterprise 上的 ASP.NET、.NET 4.0、MVC 3 和 IIS 7。

堆栈跟踪：

[HttpException (0x80004005): Maximum request length exceeded.]
    System.Web.HttpRequest.GetEntireRawContent() +11472119
    System.Web.HttpRequest.GetMultipartContent() +232
    System.Web.HttpRequest.FillInFormCollection() +345
    System.Web.HttpRequest.get_Form() +157
    Microsoft.Web.Infrastructure.DynamicValidationHelper.<>c__DisplayClass12.<ReplaceCollection>b__e() +63
    Microsoft.Web.Infrastructure.DynamicValidationHelper.<>c__DisplayClass12.<ReplaceCollection>b__11() +20
    Microsoft.Web.Infrastructure.DynamicValidationHelper.DeferredCountArrayList.get_Count() +20
    System.Web.HttpRequest.ValidateNameValueCollection(NameValueCollection nvc, RequestValidationSource requestCollection) +34
    System.Web.HttpRequest.get_Form() +212
    System.Web.Mvc.HttpRequestExtensions.GetHttpMethodOverride(HttpRequestBase request) +160
    System.Web.Mvc.AcceptVerbsAttribute.IsValidForRequest(ControllerContext controllerContext, MethodInfo methodInfo) +55
    System.Linq.Enumerable.All(IEnumerable`1 source, Func`2 predicate) +149
    System.Web.Mvc.ActionMethodSelector.RunSelectionFilters(ControllerContext controllerContext, List`1 methodInfos) +428
    System.Web.Mvc.ReflectedControllerDescriptor.FindAction(ControllerContext controllerContext, String actionName) +140
    System.Web.Mvc.ControllerActionInvoker.FindAction(ControllerContext controllerContext, ControllerDescriptor controllerDescriptor, String actionName) +27
    System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +148
    System.Web.Mvc.Controller.ExecuteCore() +159
    System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +335
    System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +62
    System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +20
    System.Web.Mvc.<>c__DisplayClasse.<EndProcessRequest>b__d() +54
    System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +469
    System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +375

Answer 1

在您的 webconfig 文件中，您需要使用路径声明 标记：

<location path="controller/action">
  <system.web>
    <!-- maxRequestLength is in kilobytes (KB)  -->
    <httpRuntime maxRequestLength="5120" /> <!-- 5MB -->
  </system.web>
  <system.webServer>
    <security>
      <requestFiltering>
        <!-- maxAllowedContentLength is in bytes (B)  -->
        <requestLimits maxAllowedContentLength="5242880"/> <!-- 5MB -->
      </requestFiltering>
    </security>
  </system.webServer>
</location>