HTTP/2 in Action 中文版
第1部分 向HTTP/2靠拢
第1章 万维网与HTTP....................................................................................................3
1.1 万维网的原理 .......................................................................................................3
1.1.1 因特网与万维网 .......................................................................................4
查看完整
第1章 万维网与HTTP....................................................................................................3
1.1 万维网的原理 .......................................................................................................3
1.1.1 因特网与万维网 .......................................................................................4
查看完整
Barry Pollard 是一位专业软件开发者，在开发、支持软件和基础架构方向拥有近20年的行业经验。他对Web技术，性能调优，安全以及技术实践非常感兴趣。他的博客是https://www.tunetheweb.com，您也可以在Twitter上找到他@tunetheweb。郑维智，Akamai公司高级企业架构师，专注于公司的主要客户及战略合作伙伴。他也是Web性能优化和HTTP/2的布道者，为Akamai的产品开发团队提供技术建议和客户反馈。
本书以易于理解、方便上手的方式，使用贴近用户的实例来解释 HTTP/2 协议。本书首先介绍为什么要升级到 HTTP/2 以及升级的方法 ；然后逐步深入，详细解释了 HTTP/2 协议本身及其对Web 开发的影响 ；之后介绍了部分高级内容，如流状态、HPACK 等 ；*后探讨了 HTTP 的未来。本书对于 Web 开发者和运维工程师来说是一本很有价值的参考书。
第1部分 向HTTP/2靠拢
第1章 万维网与HTTP....................................................................................................3
1.1 万维网的原理 .......................................................................................................3
1.1.1 因特网与万维网 .......................................................................................4
1.1.2 打开网页时会发生什么 ...........................................................................5
1.2 什么是HTTP .........................................................................................................9
1.3 HTTP的语法和历史 ...........................................................................................16
1.3.1 HTTP/0.9 .................................................................................................16
1.3.2 HTTP/1.0 .................................................................................................17
1.3.3 HTTP/1.1 .................................................................................................23
1.4 HTTPS简介 .........................................................................................................29
1.5 查看、发送和接收HTTP消息的工具 ...............................................................32
1.5.1 浏览器开发者工具 .................................................................................32
1.5.2 发送 HTTP 请求 .....................................................................................34
1.5.3 其他工具 .................................................................................................35
总结 ..............................................................................................................................36
第2章 通向HTTP/2之路...............................................................................................37
2.1 HTTP/1.1和当前的万维网 .................................................................................38
2.1.1 HTTP/1.1 根本的性能问题 ....................................................................40
2.1.2 HTTP/1.1 管道化 ....................................................................................42
2.1.3 网络性能瀑布流图 .................................................................................43
2.2 解决HTTP/1.1性能问题的方案 .........................................................................45
2.2.1 使用多个 HTTP 连接 .............................................................................46
2.2.2 发送更少的请求 .....................................................................................49
2.2.3 HTTP/1 性能优化总结 ...........................................................................50
2.3 HTTP/1.1的其他问题 .........................................................................................50
2.4 实际案例 .............................................................................................................51
2.4.1 示例网站 1: amazon.com .......................................................................52
2.4.2 示例网站 2 ： imgur.com .........................................................................56
2.4.3 这个问题究竟有多严重 .........................................................................57
2.5 从HTTP/1.1到HTTP/2 ........................................................................................58
2.5.1 SPDY .......................................................................................................58
2.5.2 HTTP/2 ....................................................................................................61
2.6 HTTP/2对Web性能的影响 .................................................................................62
2.6.1 展示 HTTP/2 能力的绝佳示例 ..............................................................62
2.6.2 对 HTTP/2 提升性能的期望 ..................................................................65
2.6.3 HTTP/1.1 的一些性能变通方法可能是反模式 ....................................70
总结 ..............................................................................................................................70
第3章 升级到HTTP/2. ..................................................................................................72
3.1 HTTP/2的支持 ....................................................................................................72
3.1.1 浏览器对 HTTP/2 的支持 ......................................................................73
3.1.2 服务器对 HTTP/2 的支持 ......................................................................78
3.1.3 兼容不支持 HTTP/2 的情况 ..................................................................80
3.2 网站开启HTTP/2的方法 ....................................................................................81
3.2.1 在 Web 服务器上开启 HTTP/2..............................................................81
3.2.2 反向代理实现 HTTP/2 ...........................................................................84
3.2.3 通过 CDN 实现 HTTP/2 ........................................................................87
3.2.4 小结 .........................................................................................................89
3.3 常见问题 .............................................................................................................89
总结 ..............................................................................................................................93
第2部分 使用HTTP/2
第4章 HTTP/2协议基础...............................................................................................97
4.1 为什么是HTTP/2而不是HTTP/1.2 ....................................................................97
4.1.1 使用二进制格式替换文本格式 .............................................................99
4.1.2 多路复用代替同步请求 .......................................................................100
4.1.3 流的优先级和流量控制 .......................................................................103
4.1.4 ***压缩 ...............................................................................................104
4.1.5 服务端推送 ...........................................................................................105
4.2 如何创建一个HTTP/2连接 ..............................................................................105
4.2.1 使用 HTTPS 协商 .................................................................................106
4.2.2 使用 HTTP upgrade *** .....................................................................113
4.2.3 使用先验知识 .......................................................................................116
4.2.4 HTTP Alternative Services ....................................................................117
4.2.5 HTTP/2 前奏消息 .................................................................................117
4.3 HTTP/2帧 ..........................................................................................................119
4.3.1 查看 HTTP/2 帧 ....................................................................................119
4.3.2 HTTP/2 帧数据格式 .............................................................................126
4.3.3 HTTP/2 消息流示例 .............................................................................128
4.3.4 其他帧 ...................................................................................................143
总结 ............................................................................................................................148
第5章 实现HTTP/2推送.....................................................
^ 收 起
第1章 万维网与HTTP....................................................................................................3
1.1 万维网的原理 .......................................................................................................3
1.1.1 因特网与万维网 .......................................................................................4
1.1.2 打开网页时会发生什么 ...........................................................................5
1.2 什么是HTTP .........................................................................................................9
1.3 HTTP的语法和历史 ...........................................................................................16
1.3.1 HTTP/0.9 .................................................................................................16
1.3.2 HTTP/1.0 .................................................................................................17
1.3.3 HTTP/1.1 .................................................................................................23
1.4 HTTPS简介 .........................................................................................................29
1.5 查看、发送和接收HTTP消息的工具 ...............................................................32
1.5.1 浏览器开发者工具 .................................................................................32
1.5.2 发送 HTTP 请求 .....................................................................................34
1.5.3 其他工具 .................................................................................................35
总结 ..............................................................................................................................36
第2章 通向HTTP/2之路...............................................................................................37
2.1 HTTP/1.1和当前的万维网 .................................................................................38
2.1.1 HTTP/1.1 根本的性能问题 ....................................................................40
2.1.2 HTTP/1.1 管道化 ....................................................................................42
2.1.3 网络性能瀑布流图 .................................................................................43
2.2 解决HTTP/1.1性能问题的方案 .........................................................................45
2.2.1 使用多个 HTTP 连接 .............................................................................46
2.2.2 发送更少的请求 .....................................................................................49
2.2.3 HTTP/1 性能优化总结 ...........................................................................50
2.3 HTTP/1.1的其他问题 .........................................................................................50
2.4 实际案例 .............................................................................................................51
2.4.1 示例网站 1: amazon.com .......................................................................52
2.4.2 示例网站 2 ： imgur.com .........................................................................56
2.4.3 这个问题究竟有多严重 .........................................................................57
2.5 从HTTP/1.1到HTTP/2 ........................................................................................58
2.5.1 SPDY .......................................................................................................58
2.5.2 HTTP/2 ....................................................................................................61
2.6 HTTP/2对Web性能的影响 .................................................................................62
2.6.1 展示 HTTP/2 能力的绝佳示例 ..............................................................62
2.6.2 对 HTTP/2 提升性能的期望 ..................................................................65
2.6.3 HTTP/1.1 的一些性能变通方法可能是反模式 ....................................70
总结 ..............................................................................................................................70
第3章 升级到HTTP/2. ..................................................................................................72
3.1 HTTP/2的支持 ....................................................................................................72
3.1.1 浏览器对 HTTP/2 的支持 ......................................................................73
3.1.2 服务器对 HTTP/2 的支持 ......................................................................78
3.1.3 兼容不支持 HTTP/2 的情况 ..................................................................80
3.2 网站开启HTTP/2的方法 ....................................................................................81
3.2.1 在 Web 服务器上开启 HTTP/2..............................................................81
3.2.2 反向代理实现 HTTP/2 ...........................................................................84
3.2.3 通过 CDN 实现 HTTP/2 ........................................................................87
3.2.4 小结 .........................................................................................................89
3.3 常见问题 .............................................................................................................89
总结 ..............................................................................................................................93
第2部分 使用HTTP/2
第4章 HTTP/2协议基础...............................................................................................97
4.1 为什么是HTTP/2而不是HTTP/1.2 ....................................................................97
4.1.1 使用二进制格式替换文本格式 .............................................................99
4.1.2 多路复用代替同步请求 .......................................................................100
4.1.3 流的优先级和流量控制 .......................................................................103
4.1.4 ***压缩 ...............................................................................................104
4.1.5 服务端推送 ...........................................................................................105
4.2 如何创建一个HTTP/2连接 ..............................................................................105
4.2.1 使用 HTTPS 协商 .................................................................................106
4.2.2 使用 HTTP upgrade *** .....................................................................113
4.2.3 使用先验知识 .......................................................................................116
4.2.4 HTTP Alternative Services ....................................................................117
4.2.5 HTTP/2 前奏消息 .................................................................................117
4.3 HTTP/2帧 ..........................................................................................................119
4.3.1 查看 HTTP/2 帧 ....................................................................................119
4.3.2 HTTP/2 帧数据格式 .............................................................................126
4.3.3 HTTP/2 消息流示例 .............................................................................128
4.3.4 其他帧 ...................................................................................................143
总结 ............................................................................................................................148
第5章 实现HTTP/2推送.....................................................
^ 收 起
Barry Pollard 是一位专业软件开发者，在开发、支持软件和基础架构方向拥有近20年的行业经验。他对Web技术，性能调优，安全以及技术实践非常感兴趣。他的博客是https://www.tunetheweb.com，您也可以在Twitter上找到他@tunetheweb。郑维智，Akamai公司高级企业架构师，专注于公司的主要客户及战略合作伙伴。他也是Web性能优化和HTTP/2的布道者，为Akamai的产品开发团队提供技术建议和客户反馈。
本书以易于理解、方便上手的方式，使用贴近用户的实例来解释 HTTP/2 协议。本书首先介绍为什么要升级到 HTTP/2 以及升级的方法 ；然后逐步深入，详细解释了 HTTP/2 协议本身及其对Web 开发的影响 ；之后介绍了部分高级内容，如流状态、HPACK 等 ；*后探讨了 HTTP 的未来。本书对于 Web 开发者和运维工程师来说是一本很有价值的参考书。
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