MQTT-V3.1.1和V5.0协议中文版_MQTT5.0资源-CSDN文库

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MQTT-V3.1.1和V5.0协议中文版.zip （3个子文件）

MQTT 协议 5.0 中文版.pdf 1.87MB

MQTT 协议 3.1.1 中文版.pdf 1.11MB

MQTT协议完整中文版版.pdf 1003KB

2017 年 10 月 26 日

MQTT v5.0 公开评审草案中文版 1/132

MQTT 协议 5.0 中文版

委员会规范草案 02 /

公开评审草案 02

2017 年 10 月 26 日

规范链接

当前版本：

http://docs.oasis-open.org/mqtt/mqtt/v5.0/csprd02/mqtt-v5.0-csprd02.docx (Authoritative)

http://docs.oasis-open.org/mqtt/mqtt/v5.0/csprd02/mqtt-v5.0-csprd02.html

http://docs.oasis-open.org/mqtt/mqtt/v5.0/csprd02/mqtt-v5.0-csprd02.pdf

以前的版本：

http://docs.oasis-open.org/mqtt/mqtt/v5.0/csprd01/mqtt-v5.0-csprd01.docx (Authoritative)

http://docs.oasis-open.org/mqtt/mqtt/v5.0/csprd01/mqtt-v5.0-csprd01.html

http://docs.oasis-open.org/mqtt/mqtt/v5.0/csprd01/mqtt-v5.0-csprd01.pdf

最新版本

位置。技术委员会产生的其他修订版和其他技

术文档都列在这里：https://www.oasis-

open.org/committees/tc_home.php?wg_abbrev=mqtt#technical .

技术委员会成员对本规范的评论应该发送到技术委员会的邮件列表。其他人应该发送评论到技术委

员会的公共评论列表，方法是点击技术委员会网站的发送评论按钮，网页地址是

https://www.oasis-open.org/committees/mqtt/ .

本规范草案的发布基于 OASIS 知识产权政策的 Non-Assertion 模式。关于实现本规范必不可少的

任何专利是否已公开，以及其他的专利许可条款相关的信息，请参考技术委员会网站的知识产权部

分 (https://www.oasis-open.org/committees/mqtt/ipr.php).

请注意，为本产品声明的任何机器可读内容（计算机语言定义）单独提供纯文本文件。对于产品叙

述文档中出现的任何不一致，以纯文本文档为准。

引用格式：

引用此规范时应该使用下面的引文格式：

[mqtt-v5.0]

MQTT Version 5.0. Edited by Andrew Banks, Ed Briggs, Ken Borgendale, and Rahul Gupta. 26

October 2017. OASIS Committee Specification Draft 02 / Public Review Draft 02.

http://docs.oasis-open.org/mqtt/mqtt/v5.0/csprd02/mqtt-v5.0-csprd02.html. Latest version:

http://docs.oasis-open.org/mqtt/mqtt/v5.0/mqtt-v5.0.html

2017 年 10 月 26 日

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文档链接

MQTT v5.0 草案公开审阅版中文翻译项目

MQTT v5.0 草案公开审阅版中文版 PDF

修订记录

版本日期发布说明

0.0.1 2018-05-18

发布全部文本，完成初步审校，公开发布第一版

关于译者

GitHub

2017 年 10 月 26 日

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注意

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Rights Policy (the "OASIS IPR Policy"). The full Policy may be found at the OASIS website.

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2017 年 10 月 26 日

MQTT v5.0 公开评审草案中文版 5/132

1 概述 ................................................................................................................................................................... 12

1.0 知识产权政策 .................................................................................................................................................. 12

1.1 MQTT 协议的组织结构 .................................................................................................................................. 12

1.2 术语 .................................................................................................................................................................. 12

1.3 规范引用 .......................................................................................................................................................... 14

1.4 非规范引用 ...................................................................................................................................................... 14

1.5 数据表示 .......................................................................................................................................................... 17

1.5.1 二进制位 .................................................................................................................................................. 17

1.5.2 双字节整数 .............................................................................................................................................. 17

1.5.3 四字节整数 .............................................................................................................................................. 17

1.5.4 UTF-8 编码字符串 ................................................................................................................................. 17

1.5.5 变长字节整数 .......................................................................................................................................... 19

1.5.6 二进制数据 .............................................................................................................................................. 20

1.5.7 UTF-8 字符串对...................................................................................................................................... 20

1.6 安全 .................................................................................................................................................................. 20

1.7 编辑约定 .......................................................................................................................................................... 20

1.8 变更历史 .......................................................................................................................................................... 20

1.8.1 MQTT v3.1.1 .......................................................................................................................................... 20

1.8.2 MQTT v5.0 .............................................................................................................................................. 20

2 MQTT 控制报文格式........................................................................................................................................ 22

2.1 MQTT 控制报文结构 ...................................................................................................................................... 22

2.1.1 固定报头 .................................................................................................................................................. 22

2.1.2 MQTT 控制报文的类型 .......................................................................................................................... 22

2.1.3 标志 .......................................................................................................................................................... 23

2.1.4 剩余长度 .................................................................................................................................................. 24

2.2 可变报头 .......................................................................................................................................................... 24

2.2.1 报文标识符 .............................................................................................................................................. 24

2.2.2 属性 .......................................................................................................................................................... 26

2.2.2.1 属性长度 ........................................................................................................................................................... 26

2.2.2.2 属性 ................................................................................................................................................................... 26

2.3 有效载荷 .......................................................................................................................................................... 27

2.4 原因码 .............................................................................................................................................................. 28

3 MQTT 控制报文 ............................................................................................................................................... 31

3.1 CONNECT – 连接请求 .................................................................................................................................. 31

3.1.1 CONNECT 固定报头 ............................................................................................................................. 31

3.1.2 CONNECT 可变报头 ............................................................................................................................. 31

3.1.2.1 协议名 ............................................................................................................................................................... 31

3.1.2.2 协议版本 ........................................................................................................................................................... 32

3.1.2.3 连接标志 ........................................................................................................................................................... 32