C#动态生成html页

Html生成模块：WriteHtml.cs

 using System.Collections.Generic;
 using System.IO;
 using System.Text;

 namespace System
 {
     /// <summary>
     /// Html
     /// </summary>
     public class Html
     {
         /// <summary>
         /// 生成Html
         /// </summary>
         /// <param name="template">模版文件</param>
         /// <param name="path">生成的文件目录</param>
         /// <param name="htmlname">生成的文件名</param>
         /// <param name="dic">字典</param>
         /// <param name="message">异常消息</param>
         /// <returns></returns>
         public bool Create(string template, string path, string htmlname, Dictionary<string, string> dic, ref string message)
         {
             bool result = false;
             string templatepath = System.Web.HttpContext.Current.Server.MapPath(template);
             string htmlpath = System.Web.HttpContext.Current.Server.MapPath(path);
             string htmlnamepath = Path.Combine(htmlpath, htmlname);
             Encoding encode = Encoding.UTF8;
             StringBuilder html = new StringBuilder();

             try
             {
                 //读取模版
                 html.Append(File.ReadAllText(templatepath, encode));
             }
             catch (FileNotFoundException ex)
             {
                 message = ex.Message;
                 return false;
             }

             foreach (KeyValuePair<string,string> d in dic)
             {
                 //替换数据
                 html.Replace(
                     string.Format("${0}$", d.Key),
                     d.Value);
             }

             try
             {
                 //写入html文件
                 if (!Directory.Exists(htmlpath))
                     Directory.CreateDirectory(htmlpath);
                 File.WriteAllText(htmlnamepath, html.ToString(), encode);
                 result = true;
             }
             catch (IOException ex)
             {
                 message = ex.Message;
                 return false;
             }

             return result;
         }
     }
 }

模版文件：/Template/a.html

 <!DOCTYPE html>
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
     <title>$title$</title>
 </head>
 <body>
     $content$<br/>
     $author$
 </body>
 </html>

调用网页：test.ashx

 using System;
 using System.Collections.Generic;
 using System.Web;

 namespace Wycz
 {
     /// <summary>
     /// test 的摘要说明
     /// </summary>
     public class test : IHttpHandler
     {

         public void ProcessRequest(HttpContext context)
         {
             //context.Response.ContentType = "text/plain";
             //context.Response.Write("Hello World");
             string template = "/Template/a.html";
             string path = "/test/";
             string htmlname = "a.html";
             Dictionary<string, string> dic = new Dictionary<string, string>();
             Html h = new Html();
             string message = string.Empty;

             dic.Add("title", "动态生成html");
             dic.Add("content", "测试内容");
             dic.Add("author", "P.R");

             if (!h.Create(template, path, htmlname, dic, ref message))
             {
                 context.Response.Write("出错啦：<br/>");
                 context.Response.Write(message);
                 context.Response.End();
             }

             context.Response.Redirect(path + htmlname);
         }

         public bool IsReusable
         {
             get
             {
                 return false;
             }
         }
     }
 }

效果图：