可在微信小程序中使用MQTT，API同paho-mqtt，采用微信基础库v1.7以上的WebSocket API，可以连接多个MQTT服务。
开发一个小程序项目有连接两台MQTT服务器的需求，试了paho.mqtt.wxapp和MQTT.js两个适配微信的MQTT库，发现不能满足这个需求。看了下MQTT.js的源代码，发现它已经适配了微信基础库v1.7之后的WebScoket代码（最多连接5条ws），放弃改动。而paho.mqtt.wxapp这个库，还是用v1.7之前的代码，我就把WebSocket相关的API换成最新的，可以跑通多条WS链接，成功解决了我的问题。
将paho-mqtt.js下载下来放入自己的工程文件中，API和paho.mqtt.wxapp的里面的完全一样（即和paho.mqtt.js相同）。
E-mail: [email protected]
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
Django
The Web framework for perfectionists with deadlines.
Laravel
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft
Open source projects and samples from Microsoft.
Google
Google ❤️ Open Source for everyone.
Alibaba
Alibaba Open Source for everyone
D3
Data-Driven Documents codes.
Tencent
China tencent open source team.
