壓縮view的內容，可加過濾器

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public class GzipFilter : ActionFilterAttribute{public override void OnResultExecuting(ResultExecutingContext filterContext){string acceptEncoding = filterContext.HttpContext.Request.Headers["Accept-Encoding"];if (String.IsNullOrEmpty(acceptEncoding)) return;var response = filterContext.HttpContext.Response;acceptEncoding = acceptEncoding.ToUpperInvariant();if (acceptEncoding.Contains("GZIP")){response.AppendHeader("Content-Encoding", "gzip");response.Filter = new GZipStream(response.Filter, CompressionMode.Compress);}else if (acceptEncoding.Contains("DEFLATE")){response.AppendHeader("Content-Encoding", "deflate");response.Filter = new DeflateStream(response.Filter, CompressionMode.Compress);}}}

然后在要壓縮的頁面控制器上加標簽。

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[GzipFilter]public ActionResult Index()

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現在基本上所有的瀏覽器支持gzip, deflate.

這里是編程對css和js文件進行壓縮放在本地，然后發送給客戶端。

----這種方法在iis7.5的集成模式下有效，在vs中有效，但在iis6里我還沒配置好，無效

----關鍵是請求，只對action有效，像js，css文件的請求，在BeginRequest里檢測不到。這種方法運行在iis7里很完美，文件大概會被壓縮到原來的1/3到1/4.

此方法主要是給請求的文件加上http頭//Response.AppendHeader("Content-Encoding", "gzip"); 這里很難處理。

如果有誰找到iis6里面可以運行的方法麻煩告訴我,或許能一起討論找到更好的解決方案，非常感謝！

---pukuimin@qq.com

瀏覽器檢測到這個頭，就會對文件進行解壓縮，就正常運行了。

protected void Application_BeginRequest(object sender, EventArgs e){GzipFiles();}private void GzipFiles(){string acceptEncoding = Request.Headers["Accept-Encoding"];string filepath = Request.FilePath;string mapfilepath = Server.MapPath("~" + filepath);if (acceptEncoding.Contains("gzip")){#region Gzip處理if (filepath.EndsWith(".css"))//css文件處理 {Response.AppendHeader("Content-Type", "text/css");Request.ContentType = "text/css";if (filepath.EndsWith("gzip.css")){FileInfo fi = new FileInfo(mapfilepath);Response.AppendHeader("Content-Encoding", "gzip");int len = mapfilepath.Length - "gzip.css".Length;if (fi.Exists == false) GZip(mapfilepath.Substring(0, len), mapfilepath);}}else if (filepath.EndsWith(".js"))//js文件處理 {Response.AppendHeader("Content-Type", "application/x-javascript");Request.ContentType = "application/x-javascript";if (filepath.EndsWith("gzip.js")){FileInfo fi = new FileInfo(mapfilepath);Response.AppendHeader("Content-Encoding", "gzip");int len = mapfilepath.Length - "gzip.js".Length;if (fi.Exists == false) GZip(mapfilepath.Substring(0, len), mapfilepath);}}#endregion}else if (acceptEncoding.Contains("deflate")){#region deflate處理if (filepath.EndsWith(".css"))//css文件處理 {Response.AppendHeader("Content-Type", "text/css");Request.ContentType = "text/css";if (filepath.EndsWith("deflate.css")){FileInfo fi = new FileInfo(mapfilepath);Response.AppendHeader("Content-Encoding", "gzip");int len = mapfilepath.Length - "deflate.css".Length;if (fi.Exists == false) GZip(mapfilepath.Substring(0, len), mapfilepath);}}else if (filepath.EndsWith(".js"))//js文件處理 {Response.AppendHeader("Content-Type", "application/x-javascript");Request.ContentType = "application/x-javascript";if (filepath.EndsWith("deflate.js")){FileInfo fi = new FileInfo(mapfilepath);Response.AppendHeader("Content-Encoding", "gzip");int len = mapfilepath.Length - "deflate.js".Length;if (fi.Exists == false) GZip(mapfilepath.Substring(0, len), mapfilepath);}}#endregion}}public void GZip(string fileName, string gipFileName){FileStream fr = File.Create(gipFileName);FileStream fc = File.OpenRead(fileName);GZipStream gzs = new GZipStream(fr, CompressionMode.Compress); //壓縮文件類byte[] arr = new byte[fc.Length];fc.Read(arr, 0, (int)fc.Length);gzs.Write(arr, 0, (int)fc.Length);gzs.Close();fc.Close();fr.Close();}//解壓縮文件方法public void DeZGip(string fileName, string gipFileName){//準備輸入輸出文件FileStream fc = File.Create(fileName);FileStream fr = File.OpenRead(gipFileName);GZipStream gzs = new GZipStream(fr, CompressionMode.Decompress);byte[] arr = new byte[fr.Length];fr.Read(arr, 0, (int)fr.Length);fc.Write(arr, 0, (int)fr.Length);gzs.Close();fr.Close();fc.Close();}

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