如何查询IIS的MIME类型映射？

Question

我如何以编程方式读取IIS的MIME类型？当我使用WCF将数据流传输到我的客户端时,我想使用它们.

任何提示,或API将不胜感激

Answer 1

我假设这只是IIS7而你正在使用C#3.0或更高版本:

using Microsoft.Web.Administration;
....
using(ServerManager serverManager = new ServerManager())
{
  // If interested in global mimeMap:
  var config = serverManager.GetApplicationHostConfiguration();

  // Use if interested in just a particular site's mimeMap:
  // var config = serverManager.GetWebConfiguration("Default Web Site");

  var staticContent = config.GetSection("system.webServer/staticContent");
  var mimeMap = staticContent.GetCollection();

  // Print all mime types
  foreach (var mimeType in mimeMap)
  {
    Console.WriteLine(String.Format("{0} = {1}", mimeType["fileExtension"],
         mimeType["mimeType"]));
  }

  // Find a mime type based on file extension
  var mt = mimeMap.Where(
        a => (string) a.Attributes["fileExtension"].Value == ".pdf"
      ).FirstOrDefault();

  if (mt != null)
  {
    Console.WriteLine("Mime type for .pdf is: " + mt["mimeType"]);
  }
}

你需要引用Microsoft.Web.Administration.dllin c:\windows\system32\inetsrv.

您的代码也需要管理员权限才能执行此操作.

Answer 2

如果使用ASP.Net 4.5或更高版本,您可以使用System.Web.MimeMapping.GetMimeMapping如下:

void Page_Init()
{
    string[] extensions = new string[]
    {
        ".pdf",
        ".xls",
        ".xlsx",
        ".ppt",
        ".pptx",
        ".mp3",
        ".ogg",
        ".svg",
        ".pdf",
        ".png",
    };

    foreach (string extension in extensions)
    {
        string mimeType = MimeMapping.GetMimeMapping(extension);
        Response.Write(String.Format("{0} => {1}<br />",
                extension,
                mimeType
            ));
    }
}

结果:

.pdf => application/pdf
.xls => application/vnd.ms-excel
.xlsx => application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
.ppt => application/vnd.ms-powerpoint
.pptx => application/vnd.openxmlformats-officedocument.presentationml.presentation
.mp3 => audio/mpeg
.ogg => video/ogg
.svg => image/svg+xml
.pdf => application/pdf
.png => image/png

Answer 3

注册到系统的 Mime 类型在注册表中的“HKEY_CLASSES_ROOT\Mime\Database\Content Type”下定义。

您是否正在寻找 IIS 中定义的特定网站的 MIME 类型？