实现GZip页面压缩代码,CSharp代码库,德仔网

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【CSharp】实现GZip页面压缩

作者:hantianwei / 发布于2014/2/25/ 318

实现GZip页面压缩

private void Application_BeginRequest(object sender, EventArgs e)
    {
      var context = HttpContext.Current;
      var request = context.Request;
      var response = context.Response;
      ResponseCompressionType compressionType = this.GetCompressionMode(request);

      if (compressionType != ResponseCompressionType.None)
      {
        response.AppendHeader("Content-Encoding", compressionType.ToString().ToLower());
        if (compressionType == ResponseCompressionType.GZip)
        {
          response.Filter = new GZipStream(response.Filter, CompressionMode.Compress);
        }
        else
        {
          response.Filter = new DeflateStream(response.Filter, CompressionMode.Compress);
        }
      }
    }

    private ResponseCompressionType GetCompressionMode(HttpRequest request)
    {
      string acceptEncoding = request.Headers["Accept-Encoding"];
      if (string.IsNullOrEmpty(acceptEncoding))
      {
        return ResponseCompressionType.None;
      }
      acceptEncoding = acceptEncoding.ToUpperInvariant();
      if (acceptEncoding.Contains("GZIP"))
      {
        return ResponseCompressionType.GZip;
      }
      else if (acceptEncoding.Contains("DEFLATE"))
      {
        return ResponseCompressionType.Deflate;
      }
      else
      {
        return ResponseCompressionType.None;
      }
    }
    private enum ResponseCompressionType { None, GZip, Deflate }

试试其它关键字

　GZip　

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