输出缓存为ApiController（MVC4的Web API） [英] Output caching for an ApiController (MVC4 Web API)

问题描述

我想缓存一个 ApiController 在 MVC4的Web API 。

下面是控制器code：

Here's the controller code:

using System.Web.Http;
using System.Web.Mvc;
using System.Web.UI;

public class TestController : ApiController
{
    [OutputCache(Duration = 10, VaryByParam = "none", Location = OutputCacheLocation.Any)]
    public string Get()
    {
        return System.DateTime.Now.ToString();
    }
}

N.B。我还尝试了其参数的控制器本身上的OutputCache属性，以及几种组合

N.B. I'd also tried the OutputCache attribute on the controller itself, as well as several combinations of its parameters.

这条路线是注册在Global.asax中：

The route is registered in Global.asax:

using System;
using System.Web;
using System.Web.Http;
using System.Web.Routing;

namespace WebApiTest
{
    public class Global : HttpApplication
    {
        protected void Application_Start(object sender, EventArgs e)
        {
            RouteTable.Routes.MapHttpRoute("default", routeTemplate: "{controller}");
        }
    }
}

我得到一个成功的响应，但它不是任何地方缓存：

I get a successful response, but it's not cached anywhere:

HTTP/1.1 200 OK
Cache-Control: no-cache
Pragma: no-cache
Content-Type: application/xml; charset=utf-8
Expires: -1
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Wed, 18 Jul 2012 17:56:17 GMT
Content-Length: 96

<string xmlns="http://schemas.microsoft.com/2003/10/Serialization/">18/07/2012 18:56:17</string>

我没能找到输出缓存文档中的Web API。

I was not able to find documentation for output caching in Web API.

这是在MVC4在Web API的限制还是我做错了什么？

Is this a limitation of the Web API in MVC4 or am I doing something wrong?

推荐答案

的WebAPI没有任何内置的，OutputCache属性的支持。以看看这篇文章看你怎么能自己实现这个功能。

WebAPI does not have any built in support for the OutputCache attribute. Take a look at this article to see how you could implement this feature yourself.

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