Microsoft Web API:你如何做一个 Server.MapPath? [英] Microsoft Web API: How do you do a Server.MapPath?

问题描述

由于 Microsoft Web API 不是 MVC，你不能做这样的事情:

Since Microsoft Web API isn't MVC, you cannot do something like this:

var a = Request.MapPath("~");

也不是这个

var b = Server.MapPath("~");

因为它们在 System.Web 命名空间下，而不是在 System.Web.Http 命名空间下.

because these are under the System.Web namespace, not the System.Web.Http namespace.

那么你如何在 Web API 中找出相对服务器路径?
我曾经在 MVC 中做这样的事情:

So how do you figure out the relative server path in Web API ?
I used to do something like this in MVC:

var myFile = Request.MapPath("~/Content/pics/" + filename);

哪个会给我磁盘上的绝对路径:

Which would give me the absolute path on disk:

"C:inetpubwwwrootmyWebFolderContentpicsmypic.jpg"

推荐答案

您可以使用 HostingEnvironment.MapPath 在 System.Web 对象(如 HttpContext.Current)不可用的任何上下文中(例如，也来自静态方法).

You can use HostingEnvironment.MapPath in any context where System.Web objects like HttpContext.Current are not available (e.g also from a static method).

var mappedPath = System.Web.Hosting.HostingEnvironment.MapPath("~/SomePath");

另见服务器之间的区别是什么.MapPath 和 HostingEnvironment.MapPath?

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