asp.net处理程序错误 - 不继承自'System.Web.IHttpHandler'

Question

每当我尝试运行我的项目时，都会收到以下错误：

  Error 19  Type 'CompressionModule' does not inherit from System.Web.IHttpHandler'.

这是我的模块代码

   

using System;
using System.IO.Compression;
using System.Web;

namespace SWMS
{
public class CompressionModule : IHttpModule
{
    void IHttpModule.Dispose()
    {
    }

    void IHttpModule.Init(HttpApplication context)
    {
        context.PreRequestHandlerExecute += new EventHandler(context_PostReleaseRequestState);
    }

    void context_PostReleaseRequestState(object sender, EventArgs e)
    {
        HttpApplication app = (HttpApplication)sender;
        if (app.Context.CurrentHandler is System.Web.UI.Page && app.Request["HTTP_X_MICROSOFTAJAX"] == null)
        {
            if (IsEncodingAccepted(GZIP))
            {
                app.Response.Filter = new GZipStream(app.Response.Filter, CompressionMode.Compress);
                SetEncoding(GZIP);
            }
            else if (IsEncodingAccepted(DEFLATE))
            {
                app.Response.Filter = new DeflateStream(app.Response.Filter, CompressionMode.Compress);
                SetEncoding(DEFLATE);
            }
        }
    }

    private const string GZIP = "gzip";
    private const string DEFLATE = "deflate";

    private static bool IsEncodingAccepted(string encoding)
    {
        HttpContext context = HttpContext.Current;
        return context.Request.Headers["Accept-encoding"] != null && context.Request.Headers["Accept-encoding"].Contains(encoding);
    }

    private static void SetEncoding(string encoding)
    {
        HttpContext.Current.Response.AppendHeader("Content-encoding", encoding);
    }
}
}

我使用以下代码注册我的模块

<system.web>
    <httpModules>
        <add name="compression" type="SWMS.CompressionModule, SWMS "/>
    </httpModules>
</system.web>

任何人都可以帮我理解我做错了什么？