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The author:(作者)归海一刀published in(发表于) 2014/1/30 0:58:46 Asp.Net中动态页面转静态页面_[Asp.Net教程]
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。
一下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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