我想用Gzip压缩我的Web应用程序,我正在使用以下类
压缩过滤器
public class CompressFilter : ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
HttpRequestBase request = filterContext.HttpContext.Request;
string acceptEncoding = request.Headers["Accept-Encoding"];
if (string.IsNullOrEmpty(acceptEncoding)) return;
acceptEncoding = acceptEncoding.ToUpperInvariant();
HttpResponseBase response = filterContext.HttpContext.Response;
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);
}
}
}
缓存过滤器
public class CacheFilterAttribute : ActionFilterAttribute
{
public int Duration
{
get;
set;
}
public CacheFilterAttribute()
{
Duration = 1;
}
public override void OnActionExecuted(ActionExecutedContext filterContext)
{
if (Duration <= 0) return;
HttpCachePolicyBase cache = filterContext.HttpContext.Response.Cache;
TimeSpan cacheDuration = TimeSpan.FromMinutes(Duration);
cache.SetCacheability(HttpCacheability.Public);
cache.SetExpires(DateTime.Now.Add(cacheDuration));
cache.SetMaxAge(cacheDuration);
cache.AppendCacheExtension("must-revalidate,proxy-revalidate");
}
}
调节器
[CompressFilter]
[CacheFilter(Duration = 60)]
public ActionResult Index()
{}
并将此类应用于Controller中的Action.但是在firebug中,它仍然显示“Transfer-Encoding：chunked”,但它应该是“Transfer-Encoding：gzip”.
我在localhost上测试它.
请告诉我,我做错了什么？感谢致敬.
更新缓存过滤器工作正常,但仍然没有gzip压缩,下面是chrome中的响应头.
Cache-Control:public,must-revalidate,proxy-revalidate,max-age=3600 Content-Type:text/html; charset=utf-8 Date:Wed,22 Jul 2015 13:39:06 GMT Expires:Wed,22 Jul 2015 14:39:04 GMT Server:Microsoft-IIS/10.0 Transfer-Encoding:chunked X-AspNet-Version:4.0.30319 X-AspNetMvc-Version:5.1 X-Powered-By:ASP.NET X-SourceFiles:=?UTF-8?B?QzpcVXNlcnNcQXJiYXpcRG9jdW1lbnRzXFZpc3VhbCBTdHVkaW8gMjAxM1xQcm9qZWN0c1xidXlwcmljZXNwYWtpc3RhblxCdXlQaG9uZQ==?=
有什么方法可以让我的工作,我真的需要帮助的人,谢谢
解决方法
如果您无法控制IIS,只需将其添加到Global.ASCX即可.在Android,iPhone和大多数PC浏览器上测试过.
protected void Application_BeginRequest(object sender,EventArgs e)
{
// Implement HTTP compression
HttpApplication app = (HttpApplication)sender;
// Retrieve accepted encodings
string encodings = app.Request.Headers.Get("Accept-Encoding");
if (encodings != null)
{
// Check the browser accepts deflate or gzip (deflate takes preference)
encodings = encodings.ToLower();
if (encodings.Contains("deflate"))
{
app.Response.Filter = new DeflateStream(app.Response.Filter,CompressionMode.Compress);
app.Response.AppendHeader("Content-Encoding","deflate");
}
else if (encodings.Contains("gzip"))
{
app.Response.Filter = new GZipStream(app.Response.Filter,"gzip");
}
}
}
