ASP.NET生成靜態頁面實現方法
| 以下是引用片段： <%@ page language="C#" %> <%@ import namespace=System.IO %> protected override void OnInit (EventArgs e) { int id; try { id = int.Parse (Request.QueryString["id"]); } catch { throw (new Exception ("頁面沒有指定id")); } string filename=Server.MapPath("statichtml_"+id+".html"); //嘗試讀取已有文件 Stream s = GetFileStream (filename); if (s != null)//如果文件存在并且讀取成功 { using (s) { Stream2Stream (s, Response.OutputStream); Response.End (); } } //調用Main_Execute,并且獲取其輸出 StringWriter sw = new StringWriter (); Server.Execute ("Main_Execute.aspx", sw); string content = sw.ToString (); //輸出到客戶端 Response.Write(content); Response.Flush(); //寫進文件 try { using (FileStream fs = new FileStream (filename, FileMode.Create, FileAccess.Write, FileShare.Write)) { using (StreamWriter streamwriter = new StreamWriter (fs, Response.ContentEncoding)) { streamwriter.Write (content); } } } finally { //Response.End (); } } static public void Stream2Stream (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); } } public Stream GetFileStream(string filename) { try { DateTime dt = File.GetLastWriteTime (filename); TimeSpan ts=dt - DateTime.Now; if(ts.TotalHours>1) return null; //1小時后過期 return new FileStream (filename, FileMode.Open, FileAccess.Read, FileShare.Read); } catch { return null; } } <%@ page language="C#" %> ID: <%=Request.QueryString["id"]%> |