August 2017
Intermediate to advanced
272 pages
5h 32m
Chinese
Content preview from Node.js物聯網裝置開發
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雲端服務
|
181
"msg":"server started","time":"2015-12-08T22:19:31.985Z","v":0}
{"name":"mosca","hostname":"vagrant","pid":7999,"client":"mqttjs_ef3","level":30,"
msg":"client connected","time":"2015-12-08T22:19:32.287Z","v":0}
一旦擁有你自己的 MQTT 伺服器，就能根據需求，調整仲介器的行為與功能。例如，
讓它處理訊息的速度更加迅速、或是更為穩定。MQTT 協定支援「品質等級」，關於這
項功能，有興趣的人可先看看 Jan-Piet Mens 的演講解說「MQTT for Sysadmins（MQTT
與系統管理）」（含影片與投影片），相當不錯，網址是
https://speakerdeck.com/jpmens/
mqtt-for-sysadmins
。
雲端服務
自己在雲端上運行伺服器的做法，並非人人都可採用，往往需要花費大量時間，進行安
裝、安全設定、維護伺服器等工作。與其自行架設伺服器，不如租用雲端服務。
CloudMQTT
若你想要試著提供 MQTT 服務，那麼有個不錯的網站叫 CloudMQTT（
https://www.
cloudmqtt.com/
）。首先註冊帳號（
https://speakerdeck.com/jpmens/mqtt-for-sysadmins
）， 便
可拿到使用私有頻道時需要的使用者名稱與密碼。 ...
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