ASP.NET MVC4 - OutputCache 异常答案

【问题标题】：ASP.NET MVC4 - OutputCache exceptionASP.NET MVC4 - OutputCache 异常
【发布时间】：2013-04-27 18:21:40
【问题描述】：

我能够适当地利用带有以下代码的 ASP.NET MVC4 OutputCache 作为我控制器的 Index() 上的属性：

[OutputCache(Duration = 600, VaryByParam = "none")]

然而，

为了管理不同的缓存场景，根据 the MSDN documentation，我们可以使用 OutputCache 缓存（例如）我们的控制器 Index() 方法em>。根据文档，我们最终得到以下代码：

在我们的控制器中

    //[OutputCache(Duration = 600, VaryByParam = "none")] //works without any modification to the Web.config
    [OutputCache(CacheProfile = "Cache1Hour", VaryByParam = "none")]
    public ActionResult Index()
    {
        return View();
    }

和在我们的 Web.config 中

  <system.web>
    <caching>
      <outputCacheSettings>
          <outputCacheProfiles>
              <add name="Cache1Hour" duration="3600"/>
          </outputCacheProfiles>
      </outputCacheSettings>
    </caching>
            ...
            ...
            ...
  </system.web>

问题/问题： 显然我遗漏了一些东西，因为我不断抛出以下异常：

异常详细信息：System.Web.HttpException：未定义“Cache1Hour”缓存配置文件。请在配置文件中定义。

完全例外：

Server Error in '/' Application.
The 'Cache1Hour' cache profile is not defined.  Please define it in the configuration file.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: The 'Cache1Hour' cache profile is not defined.  Please define it in the configuration file.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[HttpException (0x80004005): The 'Cache1Hour' cache profile is not defined.  Please define it in the configuration file.]
   System.Web.UI.Page.InitOutputCache(OutputCacheParameters cacheSettings) +3136900
   System.Web.Mvc.OutputCachedPage.FrameworkInitialize() +47
   System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +48
   System.Web.UI.Page.ProcessRequest() +72
   System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +21
   System.Web.UI.Page.ProcessRequest(HttpContext context) +58
   System.Web.Mvc.OutputCacheAttribute.OnResultExecuting(ResultExecutingContext filterContext) +184
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +72
   System.Web.Mvc.<>c__DisplayClass1c.<InvokeActionResultWithFilters>b__19() +72
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +388
   System.Web.Mvc.<>c__DisplayClass1c.<InvokeActionResultWithFilters>b__19() +72
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +303
   System.Web.Mvc.Async.<>c__DisplayClass2a.<BeginInvokeAction>b__20() +155
   System.Web.Mvc.Async.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult) +184
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +136
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +56
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +40
   System.Web.Mvc.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult) +40
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +47
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +151
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +44
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +47
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +151
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +39
   System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +39
   System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult) +45
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +47
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +151
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +40
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +38
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9629296
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

【问题讨论】：

标签： asp.net asp.net-mvc-4 outputcache

【解决方案1】：

我发现我将配置代码放在“视图”的 Web.config 而不是根 Web.config 中。一旦我放置：

<system.web>
    <caching>
      <outputCacheSettings>
          <outputCacheProfiles>
              <add name="Cache1Hour" duration="3600"/>
          </outputCacheProfiles>
      </outputCacheSettings>
    </caching>
    ...
    ...
    ...
</system.web>

...进入正确的 Web.config 方法被正确缓存，我希望这对其他人有帮助。如果没有别的，我在这篇文章中展示的代码和策略为您提供了使用 OutputCache 在控制器中缓存方法的最低要求。

【讨论】：