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  • Asp.Net中动态页面转静态页面

    Asp.Net中动态页面转静态页面

    来源:CSDN 关键词:静态页面  asp.net  

     

    关于在Asp.Net中动态页面转静态页面的方法网上比较多。结合实际的需求,我在网上找了一些源代码,并作修改。现在把修改后的代码以及说明写一下。

      一个是一个页面转换的类,该类通过静态函数Changfile()来实现,动态页面到静态页面的转换。  

    using System;
      using System.Data;
      using System.Configuration;
      using System.Web;
      using System.Web.Security;
      using System.Web.UI;
      using System.Web.UI.WebControls;
      using System.Web.UI.WebControls.WebParts;
      using System.Web.UI.HtmlControls;
      using System.Text;
      using System.IO;
      /**////
      /// Summary description for HtmlProxy
      ///
      public class HtmlProxy
      ...{
      public HtmlProxy()
      ...{
      }
      public static bool ChangeFile(int id)
      ...{
      string filename = HttpContext.Current.Server.MapPath("Post_" + id + ".html");
      //尝试读取已有文件 
     Stream st = GetFileStream(filename);
      //如果文件存在并且读取成功
      if (st != null)
      ...{
      using (st)
      ...{
      StreamToStream(st, HttpContext.Current.Response.OutputStream);
      return true;
      //Response.End();
      }
      }
      else
      ...{
      StringWriter sw = new StringWriter();
      HttpContext.Current.Server.Execute("ForumDetail.aspx?PID=" + id, sw);
      string content = sw.ToString();
      //写进文件

     try
      ...{
      using (FileStream fs = new FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.Write))
      ...{
      using (StreamWriter stw = new StreamWriter(fs, HttpContext.Current.Response.ContentEncoding))
      ...{
      stw.Write(content);
      }
      }
      return true;
      }
      catch ...{ return false; }
      }
      }
      private static Stream GetFileStream(string filename)
      ...{
      try
      ...{
      DateTime dt = File.GetLastWriteTime(filename);
      TimeSpan ts = dt - DateTime.Now;
      if (ts.TotalHours >1)
      ...{
      //一小时后过期
      return null;
      }
      return new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read);
      }
      catch ...{ return null; }
      }
      static public void StreamToStream(Stream src, Stream dst)
      ...{
      byte[] buf = new byte[4096];
      while (true)
      ...{
      int c = src.Read(buf, 0, buf.Length);
      if (c == 0)
      return;
      dst.Write(buf, 0, c);
      }
      }
      }
      在页面文件中,ForURL.aspx的后台代码如下:
      protected void Page_Load(object sender, EventArgs e)
      ...{
      try
      ...{
      int id = int.Parse(Request.QueryString["PID"]);
      if(HtmlProxy.ChangeFile(id))
      ...{
      Response.Redirect("Post_" + id + ".html");
      }
      else
      ...{
      Response.Redirect("Post.aspx?PID=" + id );
      }
      }
      catch ...{
      }
      }

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  • 原文地址:https://www.cnblogs.com/fangyuan303687320/p/1622532.html
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