1、在web.config中添加以下项目。

<compilation>
<buildProviders>
<add extension=".html" type="System.Web.Compilation.PageBuildProvider"/>
</buildProviders>
</compilation>

<httpHandlers>
<add verb="*" path="*.html" type="System.Web.UI.PageHandlerFactory"/>
</httpHandlers>

2、重写处理方法

Namespace web

{

public class eastClass : IHttpHandler

{

public bool IsReusable

{

get { return true; }

}

public void ProcessRequest(HttpContext context)

{

Uri url = context.Request.Url;

string filepath = context.Request.Url.AbsolutePath;

filepath = context.Server.MapPath("//") + filepath.Replace("/", "//");

if (File.Exists(filepath) == false)

{

if (url.ToString().IndexOf("要处理的url中的关键字") > -1)

{

string uname = url.Segments[url.Segments.Length - 1];//取出带后缀文件名称

string id = uname.Substring(0, uname.IndexOf("."));//真实的文件名

if (id != "")

context.Response.Redirect("/xxx.aspx?id=" + id, true);//跳转

}

else

{

filepath = context.Server.MapPath("//") + "404.htm";

string tempstr;

using (StreamReader sr = new StreamReader(filepath, Encoding.Default))

{

tempstr = sr.ReadToEnd();

}

context.Response.Write(tempstr);

context.Response.End();

}

}

else

{

string tempstr;

using (StreamReader sr = new StreamReader(filepath, Encoding.UTF8))

{

tempstr = sr.ReadToEnd();

}

context.Response.Write(tempstr);

context.Response.End();

}

}

}

}