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將asp.net頁面靜態(tài)化有很大意義，在些我就不多說了，實現(xiàn)asp.net頁面靜態(tài)化有很多種方面，在此我介紹一種在asp.net內(nèi)實現(xiàn)的方法。大家都知道，每個asp.net頁面都有一個特定的類對其進行處理，默認情況下該類是從Page類派生的。我們所要做的就是從Page類派生自己的類改寫特定的方法。具體實現(xiàn)如下：
 using System;using System.Data;using System.Configuration;using System.Linq;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts; using System.Xml.Linq;using System.IO;public class FreezablePage : System.Web.UI.Page{ // When Asp.Net renders the page the Page.Render method is invoked // Override the method to hook in protected void Page_Load(object sender, EventArgs e) { //Response.HeaderEncoding = System.Text.Encoding.UTF8; //Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312"); Freeze(string.Format(@"{0}.htm", Request.Url.ToString())); } protected override void Render(HtmlTextWriter writer) { if (freeze) { MyHtmlFileCreator htmlFile = new MyHtmlFileCreator(); // Let Asp.net render the output, catch it in the file creator base.Render(htmlFile.RenderHere); newUrl = HttpContext.Current.Request.Url.AbsolutePath.ToString(); newUrl = newUrl.Replace(".aspx", ".htm"); //Response.HeaderEncoding = System.Text.Encoding.UTF8; //Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312"); // Write new html file htmlFile.WriteHTMLFile(Server.MapPath(newUrl)); // Redirect Response.Redirect(newUrl, true); } else { // Default behavior base.Render(writer); } } // Flag render event protected void Freeze() { freeze = true; } protected void Freeze(string toUrl) { freeze = true; NewUrl = toUrl; } private bool freeze = false; private string newUrl; internal string NewUrl { get { return newUrl; } set { newUrl = value; } }}internal class MyHtmlFileCreator{ private StringWriter html; private MyHtmlTextWriter htmlWriter; // override the HtmlTextWriter to reach the constructor // the constructor in the base class is protected class MyHtmlTextWriter : HtmlTextWriter { internal MyHtmlTextWriter(TextWriter tw) : base(tw) { } } // publish the HTMLwriter internal HtmlTextWriter RenderHere { get { return htmlWriter; } } // constructor initializes stringwriter and htmlwriter based on that // initialize Url internal MyHtmlFileCreator() { html = new StringWriter(); htmlWriter = new MyHtmlTextWriter(html); } internal void WriteHTMLFile(string virtualFileName) { // Stringreader reads output rendered by asp.net // Stringwriter writes html output file StringReader sr = new StringReader(html.ToString()); StringWriter sw = new StringWriter(); // Read from input string htmlLine = sr.ReadLine(); while (htmlLine != null) { /**///// Filter out ASp.net specific tags //if (!((htmlLine.IndexOf("<form") > 0) || // (htmlLine.IndexOf("__VIEWSTATE") > 0) || // (htmlLine.IndexOf("</form>") > 0))) //{ sw.WriteLine(htmlLine); } sw.WriteLine(htmlLine); htmlLine = sr.ReadLine(); } // Write contents stringwriter to html file StreamWriter fs = new StreamWriter(virtualFileName,false,System.Text.Encoding.UTF8); //StreamWriter f=new StreamWriter( fs.Write(sw.ToString()); fs.Close(); }} |
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