.net mvc 数据压缩传输

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);
            }
 
        }