ASP.NET MVC确定由文件/文件路径MIME类型 [英] ASP.NET MVC Determine mime type by file/file path

问题描述

我使用ASP.NET MVC 3。
该应用程序是针对.NET 4.0。

I am using ASP.NET MVC 3. The application is targeting .net 4.0.

我试图通过一个虚拟的路径作为参数传递给我的控制器的行动，并没有仔细检查其服务器上的实际物理路径，并提供基本的授权返回文件。不幸的是我无法找到文件的方法来生成相应的ActionResult合适的超载。我被困在确定MIME类型的文件。

I was trying to pass a virtual path as argument to my controller's action and return the file without reviewing the actual physical path on the server and providing basic Authorization. Unfortunately I was unable to find a suitable overload for File method to generate the appropriate ActionResult. I am stuck at determining mime type for the file.

我发现一对夫妇通过文件名确定MIME类型的解决方案，但他们都不满足我。我想知道如何IIS确定MIME类型时，您所请求的服务器上的文件？是否有可能以某种方式传递给IIS的责任确定的MIME类型的响应

I've found a couple of solutions for determining mime-types by file name, but none of them are satisfying me. I was wondering how does IIS determines the mime type when you are requesting a file on the server? Is it possible to somehow pass to IIS the responsibility for determining the mime type for the response

推荐答案

如果您使用的是.NET 4.5有一个函数，现在需要一个文件名并返回一个MIME类型：

If you are using .net 4.5 there is a function now that takes a filename and returns a mimetype:

MimeMapping.GetMimeMapping(filename)

<一个href=\"http://msdn.microsoft.com/en-us/library/system.web.mimemapping.getmimemapping.aspx\">http://msdn.microsoft.com/en-us/library/system.web.mimemapping.getmimemapping.aspx

在这个问题以后再看看功能：

Take a look at the function later in this question:

<一个href=\"http://stackoverflow.com/questions/636179/how-to-use-generic-handlers-ashx-in-asp-net-mvc/636720#636720\">How在ASP.NET MVC中使用通用处理程序（ASHX）？

这是过时与现在的文件类型列表中的一点点，但它是一个开始，将设法找到我最近的之一。

It is a little out of date with the list of file types now but it's a start, will try to find my more recent one.

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