从MVC中生成的HTML中删除多余的空格 [英] Removing extra whitespace from generated HTML in MVC

问题描述

我有一个MVC应用程序视图生成相当大的HTML表值（> 20MB）。

I have an MVC application view that is generating quite a large HTML table of values (>20MB).

我使用压缩压缩控制器中的视图过滤器

I am compressing the view in the controller using a compression filter

 internal 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);
         }
     }
 }

消除在运行压缩过滤器之前在视图中生成的（相当大的）大量的冗余空白空间（以减少压缩工作量和大小）？

Is there a way to also eliminate the (quite large) amount of redundant whitespace generated in the view before I run the compress filter (to reduce compression workload and size)?

/ b>
我使用下面的Womp建议的WhiteSpaceFilter技术工作。

I got it working using the WhiteSpaceFilter technique suggested by Womp below.

感兴趣的是这里的结果，由Firebug分析：

For interest here's the results, as analysed by Firebug:

1）无压缩，无空白条 - 21MB，2.59分钟

3）使用GZIP压缩，空白条 - 558kB，12.77s


\\ b $ b因此值得。 / p>

1) No Compression, no whitespace strip - 21MB, 2.59 minutes
2) With GZIP compression, no whitespace strip - 2MB, 17.59s
3) With GZIP compression, whitespace strip - 558kB, 12.77s

So certainly worth it.

推荐答案

这个家伙写了一个整洁的小空格压缩器，它简单地通过正则表达式运行你的字节的快速块副本，以剥离空间的blob。他把它作为一个http模块，但你可以把7行的workhorse代码，并把它拖入你的函数。

This guy wrote a neat little whitespace compactor that simply runs a fast block copy of your bytes through a regular expression to strip out blobs of space. He wrote it as an http module, but you could take the 7 lines of workhorse code out of it and plop it into your function.

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