{"id":1005598,"date":"2024-12-27T10:37:05","date_gmt":"2024-12-27T02:37:05","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1005598.html"},"modified":"2024-12-27T10:37:07","modified_gmt":"2024-12-27T02:37:07","slug":"%e4%bd%bf%e7%94%a8python%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0mqtt","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1005598.html","title":{"rendered":"\u4f7f\u7528python\u5982\u4f55\u5b9e\u73b0mqtt"},"content":{"rendered":"

\"\u4f7f\u7528python\u5982\u4f55\u5b9e\u73b0mqtt\"<\/p>\n

\u5728Python\u4e2d\u5b9e\u73b0MQTT\uff08\u6d88\u606f\u961f\u5217\u9065\u6d4b\u4f20\u8f93\uff09\u534f\u8bae\uff0c\u53ef\u4ee5\u4f7f\u7528paho-mqtt\u5e93\uff0c\u8fd9\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u7269\u8054\u7f51\u901a\u4fe1\u534f\u8bae\u3002\u8981\u5728Python\u4e2d\u5b9e\u73b0MQTT\uff0c\u901a\u5e38\u9700\u8981\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a\u5b89\u88c5paho-mqtt\u5e93\u3001\u8bbe\u7f6eMQTT\u5ba2\u6237\u7aef\u3001\u8fde\u63a5\u5230MQTT\u4ee3\u7406\u3001\u8ba2\u9605\u548c\u53d1\u5e03\u6d88\u606f\u3001\u5904\u7406\u63a5\u6536\u5230\u7684\u6d88\u606f<\/strong>\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5176\u4e2d\u7684\u4e00\u70b9\uff1a\u8bbe\u7f6eMQTT\u5ba2\u6237\u7aef<\/strong>\u3002<\/p>\n<\/p>\n

\u5728\u8bbe\u7f6eMQTT\u5ba2\u6237\u7aef\u65f6\uff0c\u9996\u5148\u9700\u8981\u521b\u5efa\u4e00\u4e2aMQTT\u5ba2\u6237\u7aef\u5b9e\u4f8b\uff0c\u7136\u540e\u8bbe\u7f6e\u5fc5\u8981\u7684\u56de\u8c03\u51fd\u6570\u3002\u8fd9\u4e9b\u56de\u8c03\u51fd\u6570\u7528\u4e8e\u5904\u7406\u8fde\u63a5\u3001\u65ad\u5f00\u8fde\u63a5\u3001\u63a5\u6536\u6d88\u606f\u7b49\u4e8b\u4ef6\u3002\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a\u9996\u5148\u4f7f\u7528paho.mqtt.client.Client()<\/code>\u521b\u5efa\u4e00\u4e2a\u5ba2\u6237\u7aef\u5b9e\u4f8b\u3002\u7136\u540e\uff0c\u5b9a\u4e49\u5e76\u7ed1\u5b9a\u56de\u8c03\u51fd\u6570\uff0c\u4f8b\u5982on_connect<\/code>\u3001on_message<\/code>\u7b49\u3002\u6700\u540e\uff0c\u4f7f\u7528client.connect()<\/code>\u8fde\u63a5\u5230MQTT\u4ee3\u7406\u3002<\/p>\n<\/p>\n

\n

\u4e00\u3001MQTT\u534f\u8bae\u7b80\u4ecb<\/h3>\n<\/p>\n

MQTT\uff08Message Queuing Telemetry Transport\uff09\u662f\u4e00\u79cd\u4e13\u4e3a\u4f4e\u5e26\u5bbd\u3001\u4e0d\u7a33\u5b9a\u7f51\u7edc\u8bbe\u8ba1\u7684\u8f7b\u91cf\u7ea7\u6d88\u606f\u534f\u8bae\u3002\u5b83\u91c7\u7528\u53d1\u5e03\/\u8ba2\u9605\u6a21\u5f0f\uff0c\u975e\u5e38\u9002\u5408\u7269\u8054\u7f51\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u4ea4\u6362\u3002<\/p>\n<\/p>\n

1\u3001MQTT\u534f\u8bae\u7684\u7279\u70b9<\/h4>\n<\/p>\n

MQTT\u534f\u8bae\u6709\u51e0\u4e2a\u663e\u8457\u7684\u7279\u70b9\uff1a\u8f7b\u91cf\u7ea7\u3001\u5f00\u653e\u6027\u3001\u7b80\u5355\u6027\u3001\u53ef\u4f38\u7f29\u6027\u548c\u53ef\u9760\u6027<\/strong>\u3002\u8f7b\u91cf\u7ea7\u610f\u5473\u7740\u5b83\u5bf9\u7f51\u7edc\u548c\u8bbe\u5907\u8d44\u6e90\u7684\u6d88\u8017\u975e\u5e38\u4f4e\u3002\u5f00\u653e\u6027\u662f\u6307\u5b83\u662f\u4e00\u4e2a\u5f00\u653e\u6807\u51c6\uff0c\u4efb\u4f55\u4eba\u90fd\u53ef\u4ee5\u5b9e\u73b0\u5176\u534f\u8bae\u3002\u7b80\u5355\u6027\u4f7f\u5f97\u5b83\u6613\u4e8e\u5b9e\u73b0\u548c\u4f7f\u7528\u3002\u53ef\u4f38\u7f29\u6027\u5141\u8bb8\u5b83\u652f\u6301\u4ece\u4f4e\u5e26\u5bbd\u8bbe\u5907\u5230\u9ad8\u6027\u80fd\u670d\u52a1\u5668\u7684\u5404\u79cd\u5e94\u7528\u3002\u53ef\u9760\u6027\u901a\u8fc7QoS\uff08\u670d\u52a1\u8d28\u91cf\uff09\u673a\u5236\u5f97\u5230\u4fdd\u969c\u3002<\/p>\n<\/p>\n

2\u3001MQTT\u7684\u5de5\u4f5c\u539f\u7406<\/h4>\n<\/p>\n

MQTT\u7684\u6838\u5fc3\u662f\u53d1\u5e03\/\u8ba2\u9605\u6a21\u5f0f\u3002\u8bbe\u5907\uff08\u5ba2\u6237\u7aef\uff09\u53ef\u4ee5\u5411\u4e00\u4e2a\u4e3b\u9898\u53d1\u5e03\u6d88\u606f\uff0c\u4e5f\u53ef\u4ee5\u8ba2\u9605\u4e00\u4e2a\u6216\u591a\u4e2a\u4e3b\u9898\uff0c\u4ece\u800c\u63a5\u6536\u5230\u76f8\u5e94\u7684\u6d88\u606f\u3002\u4e2d\u95f4\u7684MQTT\u4ee3\u7406\uff08\u670d\u52a1\u5668\uff09\u8d1f\u8d23\u63a5\u6536\u6d88\u606f\u5e76\u5c06\u5176\u8f6c\u53d1\u7ed9\u8ba2\u9605\u4e86\u8be5\u4e3b\u9898\u7684\u5ba2\u6237\u7aef\u3002\u8fd9\u79cd\u6a21\u5f0f\u4f7f\u5f97\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u53d8\u5f97\u975e\u5e38\u7075\u6d3b\u548c\u9ad8\u6548<\/strong>\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u5b89\u88c5paho-mqtt\u5e93<\/h3>\n<\/p>\n

\u5728Python\u4e2d\u5b9e\u73b0MQTT\u534f\u8bae\uff0c\u901a\u5e38\u4f7f\u7528paho-mqtt\u5e93\u3002\u8be5\u5e93\u662fEclipse\u57fa\u91d1\u4f1a\u63d0\u4f9b\u7684\u4e00\u4e2a\u5f00\u6e90Python\u5ba2\u6237\u7aef\u5e93\uff0c\u652f\u6301MQTT\u534f\u8bae\u7684\u6240\u6709\u529f\u80fd\u3002<\/p>\n<\/p>\n

1\u3001\u5b89\u88c5paho-mqtt<\/h4>\n<\/p>\n

\u53ef\u4ee5\u4f7f\u7528pip\u5de5\u5177\u6765\u5b89\u88c5paho-mqtt\u5e93\u3002\u6253\u5f00\u547d\u4ee4\u884c\u7ec8\u7aef\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<\/p>\n

pip install paho-mqtt<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u5c06\u4ecePython\u7684\u5b98\u65b9\u5305\u7ba1\u7406\u5668PyPI\u4e2d\u4e0b\u8f7d\u5e76\u5b89\u88c5paho-mqtt\u5e93\u3002<\/p>\n<\/p>\n
2\u3001\u9a8c\u8bc1\u5b89\u88c5<\/h4>\n<\/p>\n
\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7\u5bfc\u5165\u5e93\u6765\u9a8c\u8bc1\u5b89\u88c5\u662f\u5426\u6210\u529f\u3002\u5728Python\u4ea4\u4e92\u5f0f\u89e3\u91ca\u5668\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<\/p>\n
import paho.mqtt.client as mqtt<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5982\u679c\u6ca1\u6709\u51fa\u73b0\u9519\u8bef\u6d88\u606f\uff0c\u8bf4\u660epaho-mqtt\u5e93\u5df2\u7ecf\u6210\u529f\u5b89\u88c5\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u8bbe\u7f6eMQTT\u5ba2\u6237\u7aef<\/h3>\n<\/p>\n
\u8bbe\u7f6eMQTT\u5ba2\u6237\u7aef\u662f\u5b9e\u73b0MQTT\u534f\u8bae\u7684\u5173\u952e\u6b65\u9aa4\u3002\u5728\u8fd9\u4e00\u6b65\u9aa4\u4e2d\uff0c\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u5ba2\u6237\u7aef\u5b9e\u4f8b\u5e76\u8bbe\u7f6e\u5fc5\u8981\u7684\u56de\u8c03\u51fd\u6570\u3002<\/p>\n<\/p>\n
1\u3001\u521b\u5efaMQTT\u5ba2\u6237\u7aef\u5b9e\u4f8b<\/h4>\n<\/p>\n
\u53ef\u4ee5\u4f7f\u7528paho.mqtt.client\u6a21\u5757\u63d0\u4f9b\u7684Client\u7c7b\u521b\u5efa\u4e00\u4e2aMQTT\u5ba2\u6237\u7aef\u5b9e\u4f8b\u3002\u4ee3\u7801\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
import paho.mqtt.client as mqtt<\/p>\n
client = mqtt.Client()<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u5b9a\u4e49\u5e76\u7ed1\u5b9a\u56de\u8c03\u51fd\u6570<\/h4>\n<\/p>\n
\u56de\u8c03\u51fd\u6570\u7528\u4e8e\u5904\u7406\u5ba2\u6237\u7aef\u7684\u5404\u79cd\u4e8b\u4ef6\uff0c\u4f8b\u5982\u8fde\u63a5\u3001\u65ad\u5f00\u8fde\u63a5\u3001\u63a5\u6536\u6d88\u606f\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u56de\u8c03\u51fd\u6570\uff1a<\/p>\n<\/p>\n
    \n
  • on_connect(client, userdata, flags, rc)<\/code>: \u5f53\u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u4ee3\u7406\u65f6\u88ab\u8c03\u7528\u3002<\/li>\n
  • on_disconnect(client, userdata, rc)<\/code>: \u5f53\u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5\u65f6\u88ab\u8c03\u7528\u3002<\/li>\n
  • on_message(client, userdata, msg)<\/code>: \u5f53\u5ba2\u6237\u7aef\u6536\u5230\u6d88\u606f\u65f6\u88ab\u8c03\u7528\u3002<\/li>\n<\/ul>\n
    \u53ef\u4ee5\u4f7f\u7528client.on_connect = on_connect<\/code>\u7684\u65b9\u5f0f\u5c06\u51fd\u6570\u7ed1\u5b9a\u5230\u5ba2\u6237\u7aef\u5b9e\u4f8b\u4e0a\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    def on_connect(client, userdata, flags, rc):<\/p>\n
        print("Connected with result code "+str(rc))<\/p>\n
    def on_message(client, userdata, msg):<\/p>\n
        print(msg.topic+" "+str(msg.payload))<\/p>\n
    client.on_connect = on_connect<\/p>\n
    client.on_message = on_message<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u56db\u3001\u8fde\u63a5\u5230MQTT\u4ee3\u7406<\/h3>\n<\/p>\n
    \u8fde\u63a5\u5230MQTT\u4ee3\u7406\u662f\u5b9e\u73b0\u5ba2\u6237\u7aef\u4e0e\u5176\u4ed6\u8bbe\u5907\u901a\u4fe1\u7684\u524d\u63d0\u3002<\/p>\n<\/p>\n
    1\u3001\u8fde\u63a5\u5230\u4ee3\u7406<\/h4>\n<\/p>\n
    \u4f7f\u7528client.connect()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u8fde\u63a5\u5230\u6307\u5b9a\u7684MQTT\u4ee3\u7406\u3002\u9700\u8981\u63d0\u4f9b\u4ee3\u7406\u7684\u5730\u5740\u548c\u7aef\u53e3\u53f7\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    client.connect("broker.hivemq.com", 1883, 60)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u8fde\u63a5\u5230\u516c\u5171MQTT\u4ee3\u7406broker.hivemq.com<\/code>\uff0c\u7aef\u53e3\u53f7\u4e3a1883\uff0c\u4fdd\u6301\u8fde\u63a5\u6d3b\u8dc3\u7684\u65f6\u95f4\u95f4\u9694\u4e3a60\u79d2\u3002<\/p>\n<\/p>\n
    2\u3001\u4fdd\u6301\u8fde\u63a5<\/h4>\n<\/p>\n
    \u8fde\u63a5\u5230\u4ee3\u7406\u540e\uff0c\u9700\u8981\u4f7f\u7528client.loop_start()<\/code>\u6216client.loop_forever()<\/code>\u65b9\u6cd5\u4fdd\u6301\u8fde\u63a5\u3002loop_start()<\/code>\u4f1a\u5728\u540e\u53f0\u8fd0\u884c\u4e00\u4e2a\u7ebf\u7a0b\u6765\u5904\u7406\u7f51\u7edc\u6d41\u91cf\uff0c\u800cloop_forever()<\/code>\u5219\u4f1a\u963b\u585e\u7a0b\u5e8f\uff0c\u6301\u7eed\u5904\u7406\u7f51\u7edc\u6d41\u91cf\u3002<\/p>\n<\/p>\n
    client.loop_start()<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e94\u3001\u8ba2\u9605\u548c\u53d1\u5e03\u6d88\u606f<\/h3>\n<\/p>\n
    \u8ba2\u9605\u548c\u53d1\u5e03\u6d88\u606f\u662fMQTT\u534f\u8bae\u7684\u6838\u5fc3\u529f\u80fd\u3002<\/p>\n<\/p>\n
    1\u3001\u8ba2\u9605\u4e3b\u9898<\/h4>\n<\/p>\n
    \u4f7f\u7528client.subscribe()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u8ba2\u9605\u4e00\u4e2a\u6216\u591a\u4e2a\u4e3b\u9898\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    client.subscribe("test\/topic")<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    2\u3001\u53d1\u5e03\u6d88\u606f<\/h4>\n<\/p>\n
    \u4f7f\u7528client.publish()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5411\u6307\u5b9a\u7684\u4e3b\u9898\u53d1\u5e03\u6d88\u606f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    client.publish("test\/topic", "Hello MQTT!")<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u516d\u3001\u5904\u7406\u63a5\u6536\u5230\u7684\u6d88\u606f<\/h3>\n<\/p>\n
    \u5904\u7406\u63a5\u6536\u5230\u7684\u6d88\u606f\u662f\u5b9e\u73b0MQTT\u534f\u8bae\u7684\u91cd\u8981\u90e8\u5206\u3002\u5728\u524d\u9762\u5df2\u7ecf\u5b9a\u4e49\u4e86on_message<\/code>\u56de\u8c03\u51fd\u6570\u7528\u4e8e\u5904\u7406\u6d88\u606f\u3002<\/p>\n<\/p>\n
    1\u3001\u89e3\u6790\u6d88\u606f<\/h4>\n<\/p>\n
    \u5728on_message<\/code>\u51fd\u6570\u4e2d\uff0c\u53ef\u4ee5\u89e3\u6790\u63a5\u6536\u5230\u7684\u6d88\u606f\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528msg.topic<\/code>\u83b7\u53d6\u6d88\u606f\u7684\u4e3b\u9898\uff0c\u4f7f\u7528msg.payload<\/code>\u83b7\u53d6\u6d88\u606f\u7684\u5185\u5bb9\u3002<\/p>\n<\/p>\n
    def on_message(client, userdata, msg):<\/p>\n
        print("Topic: ", msg.topic)<\/p>\n
        print("Message: ", str(msg.payload.decode("utf-8")))<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    2\u3001\u5904\u7406\u4e1a\u52a1\u903b\u8f91<\/h4>\n<\/p>\n
    \u5728\u89e3\u6790\u6d88\u606f\u540e\uff0c\u53ef\u4ee5\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u5904\u7406\u6d88\u606f\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5c06\u6d88\u606f\u4fdd\u5b58\u5230\u6570\u636e\u5e93\uff0c\u6216\u8005\u6839\u636e\u6d88\u606f\u5185\u5bb9\u89e6\u53d1\u67d0\u4e9b\u52a8\u4f5c\u3002<\/p>\n<\/p>\n
    \u4e03\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
    \u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u53ef\u4ee5\u5728Python\u4e2d\u4f7f\u7528paho-mqtt\u5e93\u5b9e\u73b0MQTT\u534f\u8bae\u3002\u5173\u952e\u6b65\u9aa4\u5305\u62ec\u5b89\u88c5paho-mqtt\u5e93\u3001\u8bbe\u7f6eMQTT\u5ba2\u6237\u7aef\u3001\u8fde\u63a5\u5230MQTT\u4ee3\u7406\u3001\u8ba2\u9605\u548c\u53d1\u5e03\u6d88\u606f\u3001\u5904\u7406\u63a5\u6536\u5230\u7684\u6d88\u606f<\/strong>\u3002\u8fd9\u79cd\u5b9e\u73b0\u65b9\u5f0f\u9002\u7528\u4e8e\u7269\u8054\u7f51\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u4ea4\u6362\uff0c\u5177\u6709\u8f7b\u91cf\u7ea7\u3001\u7b80\u5355\u3001\u9ad8\u6548\u7684\u7279\u70b9\u3002<\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
     \u5982\u4f55\u5728Python\u4e2d\u5b89\u88c5MQTT\u5e93\uff1f<\/strong>
    \u8981\u5728Python\u4e2d\u4f7f\u7528MQTT\uff0c\u9996\u5148\u9700\u8981\u5b89\u88c5\u76f8\u5e94\u7684\u5e93\u3002\u6700\u5e38\u7528\u7684MQTT\u5e93\u662fpaho-mqtt<\/code>\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u5728\u7ec8\u7aef\u6216\u547d\u4ee4\u63d0\u793a\u7b26\u4e2d\u5b89\u88c5\uff1a  <\/p>\n
    pip install paho-mqtt\n<\/code><\/pre>\n
    \u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u60a8\u5c31\u53ef\u4ee5\u5728Python\u4ee3\u7801\u4e2d\u5bfc\u5165\u5e76\u4f7f\u7528\u8fd9\u4e2a\u5e93\u6765\u8fdb\u884cMQTT\u901a\u4fe1\u3002<\/p>\n
    Python\u4e2d\u5982\u4f55\u8fde\u63a5\u5230MQTT\u4ee3\u7406\uff1f<\/strong>
    \u8fde\u63a5\u5230MQTT\u4ee3\u7406\u975e\u5e38\u7b80\u5355\u3002\u60a8\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u5ba2\u6237\u7aef\u5b9e\u4f8b\uff0c\u5e76\u4f7f\u7528connect<\/code>\u65b9\u6cd5\u8fde\u63a5\u5230\u4ee3\u7406\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u57fa\u672c\u7684\u8fde\u63a5\u793a\u4f8b\uff1a  <\/p>\n
    import paho.mqtt.client as mqtt\n\ndef on_connect(client, userdata, flags, rc):\n    print("\u8fde\u63a5\u6210\u529f\uff0c\u8fd4\u56de\u7801\uff1a", rc)\n\nclient = mqtt.Client()\nclient.on_connect = on_connect\nclient.connect("mqtt.example.com", 1883, 60)\n\nclient.loop_start()\n<\/code><\/pre>\n
    \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u60a8\u9700\u8981\u5c06"mqtt.example.com"<\/code>\u66ff\u6362\u4e3a\u60a8\u7684MQTT\u4ee3\u7406\u5730\u5740\u3002<\/p>\n
    \u5982\u4f55\u5728Python\u4e2d\u53d1\u5e03\u548c\u8ba2\u9605MQTT\u6d88\u606f\uff1f<\/strong>
    \u5728Python\u4e2d\uff0c\u53d1\u5e03\u548c\u8ba2\u9605MQTT\u6d88\u606f\u975e\u5e38\u76f4\u63a5\u3002\u53ef\u4ee5\u4f7f\u7528publish<\/code>\u65b9\u6cd5\u53d1\u9001\u6d88\u606f\uff0c\u4f7f\u7528subscribe<\/code>\u65b9\u6cd5\u8ba2\u9605\u4e3b\u9898\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a  <\/p>\n
    def on_message(client, userdata, message):\n    print("\u63a5\u6536\u5230\u6d88\u606f\uff1a", message.payload.decode())\n\nclient.subscribe("test\/topic")\nclient.on_message = on_message\n\nclient.loop_start()\n\n# \u53d1\u5e03\u6d88\u606f\nclient.publish("test\/topic", "Hello, MQTT!")\n<\/code><\/pre>\n
    \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u60a8\u53ef\u4ee5\u5728\u6307\u5b9a\u4e3b\u9898\u4e0a\u63a5\u6536\u548c\u53d1\u9001\u6d88\u606f\u3002\u786e\u4fdd\u5728\u8fd0\u884c\u4ee3\u7801\u65f6\uff0c\u60a8\u5df2\u7ecf\u8fde\u63a5\u5230MQTT\u4ee3\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u5b9e\u73b0MQTT\uff08\u6d88\u606f\u961f\u5217\u9065\u6d4b\u4f20\u8f93\uff09\u534f\u8bae\uff0c\u53ef\u4ee5\u4f7f\u7528paho-mqtt\u5e93\uff0c\u8fd9\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u7269\u8054\u7f51\u901a\u4fe1 […]","protected":false},"author":3,"featured_media":1005600,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1005598"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1005598"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1005598\/revisions"}],"predecessor-version":[{"id":1005601,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1005598\/revisions\/1005601"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1005600"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1005598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1005598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1005598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}