http2 explained
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    • Background
    • HTTP Today
    • Things done to overcome latency pains
    • Updating HTTP
    • http2 concepts
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    • 背景
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    • 扩展阅读
    • 致谢
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  • 1.1 关于作者
  • 1.2 帮助我!
  • 1.3 许可证
  • 1.4 文档历史
  • Version 1.13
  • Version 1.12
  • Version 1.11
  • Version 1.10
  • Version 1.9

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  1. 中文

背景

Previous中文NextHTTP的现状

Last updated 5 years ago

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这篇文档会从技术和协议层面来介绍http2。文档起源于2014年4月我在斯德哥尔摩做了一次相关的演讲,在那之后我对演讲内容的细节进行了一些解释和补充,从而写出了这篇文档。

正式版http2规格标准叫做RFC 7540,发布于2015年5月15日:

如果你有在这篇文章中发现任何我的失误造成的错误或疏漏,请帮我指正。我会在后续版本中修改。

为了让阅读体验更流畅,在这篇文章中我会使用“http2”来指代这一新协议,但请记住该协议的正式名字是HTTP/2。

1.1 关于作者

我的名字叫做Daniel Stenberg,在Mozilla工作。在过去20年,我一直致力于开源事业,参与了多个网络方面的项目。可能我最广为人知的身份是curl和libcurl的首席开发者。同时,我也参与了IETF HTTPbis工作组多年,工作在HTTP 1.1和http2标准化的一线.

Email: daniel@haxx.se

Twitter:

Web:

Blog:

1.2 帮助我!

如果你在该文档里面发现任何错误、疏漏,请发送给我一份相关段落更改后的版本,我会进行修正并且注明所有对文档有贡献的人!希望能将这份文档变得越来越好。

这篇文档可以在下载。

1.3 许可证

1.4 文档历史

该文档的第一版发布于2014年4月25日。下面是最近主要改动的更新历史。

Version 1.13

  • Converted the master version of this document to Markdown syntax

  • 13: Mention more resources, updated links and descriptions

  • 12: Updated the QUIC description with reference to draft

  • 8.5: Refreshed with current numbers

  • 3.4: The average is now 40 TCP connections

  • 6.4: Updated to reflect what the spec says

Version 1.12

  • 1.1: HTTP/2 is now in an official RFC

  • 6.5.1: Link to the HPACK RFC

  • 9.1: Mention the Firefox 36+ config switch for http2

  • 12.1: Added section about QUIC

Version 1.11

  • Lots of language improvements mostly pointed out by friendly contributors

  • 8.3.1: Mention nginx and Apache httpd specific acitivities

Version 1.10

  • 1: The protocol has been “okayed”

  • 4.1: Refreshed the wording since 2014 is last year

  • Front: Added image and call it “http2 explained” there, fixed link

  • 1.4: Added document history section

  • Many spelling and grammar mistakes corrected

  • 14: Added thanks to bug reporters

  • 2.4: Better labels for the HTTP growth graph

  • 6.3: Corrected the wagon order in the multiplexed train

  • 6.5.1: HPACK draft-12

Version 1.9

  • Updated to HTTP/2 draft-17 and HPACK draft-11

  • Added section "10. http2 in Chromium" (== one page longer now)

  • Lots of spell fixes

  • At 30 implementations now

  • 8.5: Added some current usage numbers

  • 8.3: Mention internet explorer too

  • 8.3.1 Added "missing implementations"

  • 8.4.3: Mention that TLS also increases success rate

这篇文档基于Createive Commons Attribution 4.0发布:

https://www.rfc-editor.org/rfc/rfc7540.txt
@bagder
daniel.haxx.se
daniel.haxx.se/blog
https://daniel.haxx.se/http2
https://creativecommons.org/licenses/by/4.0/