{"id":47330,"date":"2023-11-03T06:10:28","date_gmt":"2023-05-01T20:00:47","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/"},"modified":"2024-05-04T07:17:14","modified_gmt":"2024-05-03T23:17:14","slug":"%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/","title":{"rendered":"\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8eMQTT\uff09"},"content":{"rendered":"<h1>\u7269\u8054\u7f51\u4e2d\u7684\u8f6f\u4ef6\u548c\u7279\u70b9<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Arduino<\/ul>\n<\/li>\n<\/ul>\n<p>\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5<\/p>\n<p>MQTT<\/p>\n<p>\u8efd\u91cf\u30d7\u30ed\u30c8\u30b3\u30eb<br \/>\npublish\/subscribe\u578b\u306eMQ<\/p>\n<hr \/>\n<h1>Arduino\u662f\u4ec0\u4e48\uff1f<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u7121\u511f\u3067\u4f7f\u3048\u308b\u30de\u30a4\u30b3\u30f3\u7528\u30d7\u30ed\u30b0\u30e9\u30e0\u4f5c\u6210\u30a2\u30d7\u30ea<\/ul>\n<\/li>\n<\/ul>\n<p>\u30de\u30a4\u30b3\u30f3\u6bce\u306b\u30a2\u30c9\u30aa\u30f3\u304c\u3042\u308b(ex, ESP8266)<\/p>\n<p>\u30b9\u30b1\u30c3\u30c1(=\u30d7\u30ed\u30b0\u30e9\u30e0)\u306fsetup\/loop\u3067\u69cb\u6210<\/p>\n<p>setup: \u96fb\u6e90\u5165\u308a\u5f8c\u4e00\u5ea6\u3060\u3051\u547c\u3070\u308c\u308b<br \/>\nloop: (\u96fb\u6e90\u5207\u308b\u307e\u3067)\u7e70\u308a\u8fd4\u3057\u547c\u3070\u308c\u308b<\/p>\n<p>\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u30b9\u30b1\u30c3\u30c1\u4f8b\u3092\u6539\u9020\u3057\u3066\u52d5\u304b\u3059<\/p>\n<pre class=\"post-pre\"><code>$brew cask install arduino\r\n<\/code><\/pre>\n<hr \/>\n<h1>MQTT\u662f\u4ec0\u4e48\uff1f<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Message Queuing Telemetry Transport<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u975e\u5e38\u306b\u8efd\u91cf\u306a\u30d7\u30ed\u30c8\u30b3\u30eb<\/ul>\n<\/li>\n<\/ul>\n<p>2000\u5e74\u4ee3\u521d\u3081\u306b\u767b\u5834\u3057\u6a19\u6e96\u5316<\/p>\n<p>TCP\/IP\u4e0a\u3067\u52d5\u304f<\/p>\n<p>publish\/subscribe\u578b\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u8ee2\u9001<br \/>\nIoT\/\u30e2\u30d0\u30a4\u30eb\u306b\u9069\u3059\u308b<\/p>\n<p>\u30bb\u30f3\u30b5\u30fc\u30c7\u30d0\u30a4\u30b9<br \/>\nFacebook Messenger\u3067\u4f7f\u308f\u308c\u3066\u3044\u308b<\/p>\n<hr \/>\n<h2>\u6bd4\u8d77HTTP\u6765\u8bf4<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u8efd\u91cf\uff08\u30d8\u30c3\u30c0\u304c\u6700\u5c0f2\u30d0\u30a4\u30c8\uff091\u30fb\u512a\u308c\u305f\u51e6\u7406\u901f\u5ea6\u30fb\u7701\u96fb\u529b<\/ul>\n<\/li>\n<\/ul>\n<p>HTTP\u3067\u306f\u30d8\u30c3\u30c0\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u9ad8\u3044<br \/>\nAgosto\u306e\u30c6\u30b9\u30c8\u306b\u3088\u308b\u3068HTTPS\u306e10\u500d\u4ee5\u4e0a\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u4f4e\u3044<\/p>\n<p>IoT\u306e\u5229\u7528\u5834\u9762\u306b\u9069\u3057\u3066\u3044\u308b<\/p>\n<p>\u8ca7\u5f31\u306a\u96fb\u6ce2\u74b0\u5883\uff08\u901a\u4fe1\u5e2f\u57df\u5236\u9650\uff09<br \/>\n\u30d0\u30a4\u30c8\u6bce\u306b\u6599\u91d1\u30fb\u30d0\u30c3\u30c6\u30ea\u30fc\u3092\u6d88\u8cbb\u3059\u308b\u74b0\u5883<\/p>\n<hr \/>\n<h3>\u4e0eHTTP\u5934\u8fdb\u884c\u6bd4\u8f83<\/h3>\n<pre class=\"post-pre\"><code>$curl --head https:\/\/www.yahoo.co.jp\/\r\nHTTP\/1.1 200 OK\r\nDate: Tue, 18 Jul 2017 18:10:57 GMT\r\n(\u4e2d\u7565)\r\n$curl --head https:\/\/www.yahoo.co.jp\/ | wc -c\r\n703\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u6700\u5c0f\u307e\u3067\u6e1b\u3089\u3059\u3068\u3057\u305f\u3089HTTP\/1.1 200 OK\u306e15byte<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">MQTT\u3067\u306f\u6700\u5c0f2\u30d0\u30a4\u30c81<\/ul>\n<\/li>\n<\/ul>\n<p>\u901a\u4fe1\u91cf\u304c\u81a8\u5927\u306b\u306a\u308b\u307b\u3069\u3053\u306e10byte\u306e\u5dee\u304c\u610f\u5473\u3092\u6301\u3064<\/p>\n<hr \/>\n<h3>\u52a0\u5bc6<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">TLS\u3092\u4f7f\u3063\u305f\u6697\u53f7\u63a5\u7d9a\u304c\u53ef\u80fd<\/ul>\n<\/li>\n<\/ul>\n<p>port: 8883<\/p>\n<p>\u305f\u3060\u3057\u901a\u4fe1\u6bce\u306b\u8a8d\u8a3c\u304c\u5fc5\u8981\u306a\u306e\u3067\u8efd\u91cf\u3055\u306f\u5931\u308f\u308c\u308b2<\/p>\n<p>\u30e1\u30c3\u30bb\u30fc\u30b8\u5168\u4f53\u306e\u30b5\u30a4\u30ba\u304c\u5927\u304d\u3044\u306a\u3089\u30d8\u30c3\u30c0\u306e10\u30d0\u30a4\u30c8\u5dee\u306f\u8aa4\u5dee<br \/>\nMQTT\u3068HTTPs\u3069\u3061\u3089\u304c\u9069\u3057\u3066\u3044\u308b\u304b\u8981\u691c\u8a0e<\/p>\n<hr \/>\n<h3>\u4e0eHTTP\u8fdb\u884c\u533a\u5206<\/h3>\n<div>\n<div class=\"post-table\">protocol\u9069\u3057\u305f\u7528\u9014http1\u5bfe1\u3067\u753b\u50cf\u306a\u3069\u5927\u304d\u306a\u30c7\u30fc\u30bf\u3092\u3084\u308a\u3068\u308a\u3057\u305f\u3044, secure\u306a\u901a\u4fe1\u304c\u3057\u305f\u3044mqtt\u8907\u6570\u53f0\u304b\u3089\u5c0f\u3055\u3044\u30c7\u30fc\u30bf\u3092\u5927\u91cf\u306b\u3082\u3089\u3044\u305f\u3044<\/div>\n<\/div>\n<hr \/>\n<h2>\u53d1\u5e03\/\u8ba2\u9605<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7e29913a08637a6a20fb\/24-0.jpeg\" alt=\"pub-sub.jpg\" \/><\/div>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9001\u4fe1\u8005(publisher)\u304c\u7279\u5b9a\u306e\u53d7\u4fe1\u8005(subscriber)\u306b\u76f4\u63a5\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3057\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u3084\u308a\u3068\u308a\u306b\u306fBroker\u3068\u547c\u3070\u308c\u308b\u4e2d\u7d99server\u304c\u5fc5\u8981<\/ul>\n<\/li>\n<\/ul>\n<p>\u30b5\u30fc\u30d0\u30fc\u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u4fdd\u7ba1\u3059\u308b\u305f\u3081\u53d7\u4fe1\u5074\u306e\u72b6\u614b\u306b\u95a2\u4fc2\u306a\u304f\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u308c\u308b<\/p>\n<p>\u30aa\u30d5\u30e9\u30a4\u30f3\u3067\u3082OK<\/p>\n<p>publisher\/subscriber\u304cMQTT client<\/p>\n<p>\u63a5\u7d9a\u6642\u306e\u30c7\u30d0\u30a4\u30b9ID\u304c\u88ab\u308b\u3068\u53e4\u3044\u63a5\u7d9a\u304c\u5207\u308c\u308b<\/p>\n<p>\u6765\u6e90\uff1a\u4fdd\u62a4MQTT &#8211; BuildingIoT 2016 \u5e7b\u706f\u7247<\/p>\n<hr \/>\n<h2>\u6d88\u606f\uff08=\u4e3b\u9898+\u6570\u636e\uff09<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7e29913a08637a6a20fb\/29-0.png\" alt=\"pub-sub-model.png\" \/><\/div>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u8ba2\u9605\u8005\u5411\u4ee3\u7406\u5546\u7533\u8bf7\u63a5\u6536\u4e3b\u9898\u7684\u6d88\u606f\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4ec5\u9700\u8981\u8fdb\u884c\u4e00\u6b21\u8fde\u63a5\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5f53\u4ee3\u7406\u5546\u53d1\u5e03\u4e3b\u9898\u65f6\uff0c\u5c06\u6d88\u606f\u53d1\u9001\u7ed9\u5df2\u7533\u8bf7\u8fde\u63a5\u7684\u8ba2\u9605\u8005\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u65e0\u6cd5\u53d1\u9001\u8fc7\u53bb\u7684\u6d88\u606f\uff08\u6700\u540e\u4e00\u6761\u6d88\u606f\u53ef\u4ee5\u9009\u62e9\u63a5\u6536\uff09\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u8ba2\u9605\u8005\u7684\u8bbf\u95ee\u4fe1\u606f\u4e0d\u4f1a\u901a\u77e5\u7ed9\u53d1\u5e03\u8005\u3002<\/ol>\n<p>\u6765\u6e90\uff1aPaho Python MQTT\u5ba2\u6237\u7aef\u548cG\u4ee3\u7801\u53ef\u89c6\u5316\u8ba8\u8bba\uff0cChennaipy<\/p>\n<hr \/>\n<h3>\u8bdd\u9898<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4e00\u822c\u7684\u306b\/(\u30b9\u30e9\u30c3\u30b7\u30e5)\u3067\u968e\u5c64\u53163<\/ul>\n<\/li>\n<\/ul>\n<p>ex, tokyoA\/temp<\/p>\n<p>\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9(#,+)<br \/>\nmosquitto\u306a\u3069\u306e\u4e00\u90e8\u30d6\u30ed\u30fc\u30ab\u30fc\u306b\u306fACL\u6a5f\u80fd\u6709\u308a<\/p>\n<hr \/>\n<h3>\u670d\u52a1\u8d28\u91cf (Service Quality)<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">client\u9593\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u5230\u9054\u4fdd\u8a3c\u30ec\u30d9\u30eb(Quality of Service)<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u901a\u5e38\u306f0\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u7cfb\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306f1\u4ee5\u4e0a\u3001\u304c\u57fa\u672c<\/ul>\n<\/li>\n<\/ul>\n<p>1\u4ee5\u4e0a\u306fbroker\u3067store\u304c\u5fc5\u8981<\/p>\n<p>Kafka\u306e\u4f8b\u3060\u304c\u4f50\u4f2f\u3055\u3093\u306e\u30b9\u30e9\u30a4\u30c9\u304c\u308f\u304b\u308a\u3084\u3059\u3044<\/p>\n<div>\n<div class=\"post-table\">leveldescexample0At most once(\u30e1\u30c3\u30bb\u30fc\u30b8\u5230\u9054\u4fdd\u8a3c\u7121)subscriber\u306e\u53d7\u4fe1\u5931\u6557\u6642\u306e\u30b1\u30a2\u304c\u306a\u3044\u3001\u306a\u30691At least once(\u5c4a\u304f\u3051\u3069\u91cd\u8907\u3059\u308b\u304b\u3082)subscriber\u306eACK\u53d7\u4fe1\u5931\u6557\u6642\u306b\u518d\u9001\u3001\u306a\u30692Exactly once(\u78ba\u5b9f\u306b\u91cd\u8907\u7121\u304f\u5c4a\u3051\u308b)transaction\u5236\u5fa1\u3001\u901f\u5ea6\u4f4e\u4e0b<\/div>\n<\/div>\n<hr \/>\n<h4>\uff08\u95f2\u8bdd\uff09\u65e5\u5fd7\u7684\u8d28\u91cf\u51b3\u5b9a\u7740\u51c6\u786e\u6027\u3002<\/h4>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u7c73\u30c6\u30c3\u30af\u30b8\u30e3\u30a4\u30a2\u30f3\u30c8\u306e\u30ed\u30b0\u53ce\u96c6\u306f\u5b9f\u306f\u96d1<\/ul>\n<\/li>\n<\/ul>\n<p>\u91cd\u8907\u3084\u30ed\u30b9\u30c8\u306f\u6c17\u306b\u3057\u306a\u3044<br \/>\n\u30ed\u30b0\u8a2d\u8a08\u306f\u3059\u3054\u3044\u3002\u30c7\u30e2\u30b0\u30e9\u306a\u3069\u6df7\u305c\u30661\u30ec\u30b3\u30fc\u30c9\u306b\u8c4a\u5bcc\u306a\u60c5\u5831\u91cf<\/p>\n<p>\u91cd\u8907\u3082\u30ed\u30b9\u30c8\u3082\u8a31\u3055\u306a\u3044\u30ed\u30b0\u3067\u30c7\u30a3\u30fc\u30d7\u30e9\u30fc\u30cb\u30f3\u30b0\u306b\u304b\u3051\u305f\u3089\u3001\u30e2\u30c7\u30eb\u306e\u7cbe\u5ea6\u304c\u30c6\u30c3\u30af\u30b8\u30e3\u30a4\u30a2\u30f3\u30c8\u3088\u308a\u9ad8\u304b\u3063\u305f<\/p>\n<p>precision\/recall\u304c\u307b\u307c1<br \/>\n1\u30ec\u30b3\u30fc\u30c9\u306f\u8cfc\u8cb7\u3084PV\u306a\u3069\u57fa\u672c\u60c5\u5831\u306e\u307f<br \/>\n\u65e5\u672c\u5411\u3051\u30b5\u30fc\u30d3\u30b9\u540c\u58eb\u306e\u6bd4\u8f03\u306a\u306e\u3067\u3001\u65e5\u672c\u8a9e\u306e\u58c1\u306a\u3069\u5916\u7684\u8981\u56e0\u306a\u53ef\u80fd\u6027\u3082<\/p>\n<p>\u7531\u4e8e\u4fdd\u5bc6\u539f\u56e0\uff0c\u6211\u4eec\u4e0d\u4f1a\u516c\u5f00\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<hr \/>\n<h1>MQTT\u4ee3\u7406\u670d\u52a1\u5668<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">OSS<\/ul>\n<\/li>\n<\/ul>\n<p>mosquitto<\/p>\n<p>cloud<\/p>\n<p>cloudMQTT<br \/>\n\u30cb\u30d5\u30c6\u30a3\u30af\u30e9\u30a6\u30c9<\/p>\n<p>\u516c\u958bMQTT\u30c6\u30b9\u30c8\u7528\u30d6\u30ed\u30fc\u30ab\u30fc<\/p>\n<p>iot.eclipse.org<\/p>\n<hr \/>\n<h1>MQTT\u5ba2\u6237\u7aef<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">OSS<\/ul>\n<\/li>\n<\/ul>\n<p>paho<\/p>\n<p>\u69d8\u3005\u306a\u8a00\u8a9e\u306b\u5bfe\u5fdc<\/p>\n<p>PubSubClient<\/p>\n<p>Arduino\u30af\u30e9\u30a4\u30a2\u30f3\u30c8<br \/>\n\u65e5\u672c\u8a9e\u306e\u30b9\u30b1\u30c3\u30c1\u4f8b\u306f\u3053\u3061\u3089<\/p>\n<hr \/>\n<h1>\u868a\u5b50\u4e0ePython\u4e2d\u7684paho<\/h1>\n<p>MQTT\u901a\u4fe1\u5728Mac\u4e0a\u7684\u8bbe\u7f6e\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<pre class=\"post-pre\"><code>$brew install mosquitto\r\n# mosquitto\u8d77\u52d5\u306e\u305f\u3081\u4ee5\u4e0b\u306e\u3069\u3061\u3089\u304b\u3092\u5b9f\u884c\r\n# bg\r\n$brew services start mosquitto\r\n# fg\r\n$\/usr\/local\/opt\/mosquitto\/sbin\/mosquitto -c \/usr\/local\/etc\/mosquitto\/mosquitto.conf\r\n\r\n$pip install paho-mqtt\r\n<\/code><\/pre>\n<hr \/>\n<h2>\u53d1\u5e03.py<\/h2>\n<p>\u5728\u6a21\u4effPython\u5ba2\u6237\u7aef\u6559\u7a0b\u7684\u540c\u65f6<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">paho.mqtt.client<\/span> <span class=\"k\">as<\/span> <span class=\"n\">mqtt<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">time<\/span>\r\n\r\n<span class=\"n\">client<\/span> <span class=\"o\">=<\/span> <span class=\"n\">mqtt<\/span><span class=\"p\">.<\/span><span class=\"n\">Client<\/span><span class=\"p\">()<\/span>\r\n<span class=\"n\">client<\/span><span class=\"p\">.<\/span><span class=\"n\">connect<\/span><span class=\"p\">(<\/span><span class=\"s\">'localhost'<\/span><span class=\"p\">,<\/span> <span class=\"mi\">1883<\/span><span class=\"p\">,<\/span> <span class=\"n\">keepalive<\/span><span class=\"o\">=<\/span><span class=\"mi\">60<\/span><span class=\"p\">)<\/span>\r\n<span class=\"n\">client<\/span><span class=\"p\">.<\/span><span class=\"n\">loop_start<\/span><span class=\"p\">()<\/span>\r\n<span class=\"k\">while<\/span> <span class=\"bp\">True<\/span><span class=\"p\">:<\/span>\r\n  <span class=\"n\">client<\/span><span class=\"p\">.<\/span><span class=\"n\">publish<\/span><span class=\"p\">(<\/span><span class=\"s\">'world\/darai0512'<\/span><span class=\"p\">,<\/span> <span class=\"s\">'test'<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"n\">time<\/span><span class=\"p\">.<\/span><span class=\"n\">sleep<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h2>\u6267\u884cpaho sub.py\u3002<\/h2>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">paho.mqtt.client<\/span> <span class=\"k\">as<\/span> <span class=\"n\">mqtt<\/span>\r\n\r\n<span class=\"k\">def<\/span> <span class=\"nf\">on_connect<\/span><span class=\"p\">(<\/span><span class=\"n\">client<\/span><span class=\"p\">,<\/span> <span class=\"n\">userdata<\/span><span class=\"p\">,<\/span> <span class=\"n\">flags<\/span><span class=\"p\">,<\/span> <span class=\"n\">respons_code<\/span><span class=\"p\">):<\/span>\r\n  <span class=\"k\">print<\/span><span class=\"p\">(<\/span><span class=\"s\">'connected'<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"n\">client<\/span><span class=\"p\">.<\/span><span class=\"n\">subscribe<\/span><span class=\"p\">(<\/span><span class=\"s\">'world\/#'<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">def<\/span> <span class=\"nf\">on_message<\/span><span class=\"p\">(<\/span><span class=\"n\">client<\/span><span class=\"p\">,<\/span> <span class=\"n\">userdata<\/span><span class=\"p\">,<\/span> <span class=\"n\">msg<\/span><span class=\"p\">):<\/span>\r\n  <span class=\"k\">print<\/span><span class=\"p\">(<\/span><span class=\"n\">msg<\/span><span class=\"p\">.<\/span><span class=\"n\">topic<\/span> <span class=\"o\">+<\/span> <span class=\"s\">' '<\/span> <span class=\"o\">+<\/span> <span class=\"nb\">str<\/span><span class=\"p\">(<\/span><span class=\"n\">msg<\/span><span class=\"p\">.<\/span><span class=\"n\">payload<\/span><span class=\"p\">))<\/span>\r\n\r\n<span class=\"n\">client<\/span> <span class=\"o\">=<\/span> <span class=\"n\">mqtt<\/span><span class=\"p\">.<\/span><span class=\"n\">Client<\/span><span class=\"p\">()<\/span>\r\n<span class=\"n\">client<\/span><span class=\"p\">.<\/span><span class=\"n\">on_connect<\/span> <span class=\"o\">=<\/span> <span class=\"n\">on_connect<\/span>\r\n<span class=\"n\">client<\/span><span class=\"p\">.<\/span><span class=\"n\">on_message<\/span> <span class=\"o\">=<\/span> <span class=\"n\">on_message<\/span>\r\n<span class=\"n\">client<\/span><span class=\"p\">.<\/span><span class=\"n\">connect<\/span><span class=\"p\">(<\/span><span class=\"s\">'localhost'<\/span><span class=\"p\">,<\/span> <span class=\"mi\">1883<\/span><span class=\"p\">,<\/span> <span class=\"n\">keepalive<\/span><span class=\"o\">=<\/span><span class=\"mi\">60<\/span><span class=\"p\">)<\/span>\r\n<span class=\"n\">client<\/span><span class=\"p\">.<\/span><span class=\"n\">loop_forever<\/span><span class=\"p\">()<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h2>\u8ba9\u6211\u4eec\u5c1d\u8bd5\u4e00\u4e0b MQTT<\/h2>\n<pre class=\"post-pre\"><code>$python pub.py &amp;\r\n$python sub.py\r\nworld\/darai0512 test\r\nworld\/darai0512 test\r\n...\r\n<\/code><\/pre>\n<hr \/>\n<div>\u6211\u8bd5\u7740\u7aa5\u89c6\u4e86MQTT\u7684\u6570\u636e\u5305\u3002<br \/>\nMQTT\u4e2d\u4f20\u8f93\u5c42\u5b89\u5168\u7684\u6743\u8861\u3002<br \/>\n\u521d\u6b21\u63a5\u89e6MQTT\u3002<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u7269\u8054\u7f51\u4e2d\u7684\u8f6f\u4ef6\u548c\u7279\u70b9 Arduino \u30a4\u30d9\u30f3\u30c8\u99c6\u52d5 MQTT \u8efd\u91cf\u30d7\u30ed\u30c8\u30b3\u30eb publish\/subscrib [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-47330","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8eMQTT\uff09 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8emqtt\uff09\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8eMQTT\uff09\" \/>\n<meta property=\"og:description\" content=\"\u7269\u8054\u7f51\u4e2d\u7684\u8f6f\u4ef6\u548c\u7279\u70b9 Arduino \u30a4\u30d9\u30f3\u30c8\u99c6\u52d5 MQTT \u8efd\u91cf\u30d7\u30ed\u30c8\u30b3\u30eb publish\/subscrib [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8emqtt\uff09\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-01T20:00:47+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-03T23:17:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7e29913a08637a6a20fb\/24-0.jpeg\" \/>\n<meta name=\"author\" content=\"\u79d1, \u9896\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u79d1, \u9896\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/\",\"name\":\"\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8eMQTT\uff09 - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-05-01T20:00:47+00:00\",\"dateModified\":\"2024-05-03T23:17:14+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/8ca01ba7f7362ad4edb7da206a12f29e\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8eMQTT\uff09\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/8ca01ba7f7362ad4edb7da206a12f29e\",\"name\":\"\u79d1, \u9896\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/8a6fb3cc7ba2f69d2189ba532aec4633ea7ed75ac0af162ec367cb3abc0fb2af?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/8a6fb3cc7ba2f69d2189ba532aec4633ea7ed75ac0af162ec367cb3abc0fb2af?s=96&d=mm&r=g\",\"caption\":\"\u79d1, \u9896\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/keying\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8eMQTT\uff09 - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8emqtt\uff09\/","og_locale":"zh_CN","og_type":"article","og_title":"\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8eMQTT\uff09","og_description":"\u7269\u8054\u7f51\u4e2d\u7684\u8f6f\u4ef6\u548c\u7279\u70b9 Arduino \u30a4\u30d9\u30f3\u30c8\u99c6\u52d5 MQTT \u8efd\u91cf\u30d7\u30ed\u30c8\u30b3\u30eb publish\/subscrib [&hellip;]","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8emqtt\uff09\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2023-05-01T20:00:47+00:00","article_modified_time":"2024-05-03T23:17:14+00:00","og_image":[{"url":"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7e29913a08637a6a20fb\/24-0.jpeg"}],"author":"\u79d1, \u9896","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u79d1, \u9896","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"1 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/","name":"\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8eMQTT\uff09 - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2023-05-01T20:00:47+00:00","dateModified":"2024-05-03T23:17:14+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/8ca01ba7f7362ad4edb7da206a12f29e"},"breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"\u7269\u8054\u7f51\u65f6\u4ee3\u7684\u7f16\u7a0b\uff08\u4e3b\u8981\u662f\u5173\u4e8eMQTT\uff09"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/8ca01ba7f7362ad4edb7da206a12f29e","name":"\u79d1, \u9896","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/8a6fb3cc7ba2f69d2189ba532aec4633ea7ed75ac0af162ec367cb3abc0fb2af?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8a6fb3cc7ba2f69d2189ba532aec4633ea7ed75ac0af162ec367cb3abc0fb2af?s=96&d=mm&r=g","caption":"\u79d1, \u9896"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/keying\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%89%a9%e8%81%94%e7%bd%91%e6%97%b6%e4%bb%a3%e7%9a%84%e7%bc%96%e7%a8%8b%ef%bc%88%e4%b8%bb%e8%a6%81%e6%98%af%e5%85%b3%e4%ba%8emqtt%ef%bc%89\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/47330","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=47330"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/47330\/revisions"}],"predecessor-version":[{"id":96904,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/47330\/revisions\/96904"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=47330"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=47330"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=47330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}