client.on_message = on_message client.on_publish = on_publish client.on_disconnect = on_disconnect client.on_unsubscribe = on_unsubscribe client.on_subscribe = on_subscribe client.connect('127.0.0.1', 1883, 600) # 600为keepalive的时间间隔 while True: client.publish(topic='mqtt11', payload=...
on_subscribe(client, userdata, mid, granted_qos): mid变量匹配从相应的subscri be()返回的mid变量。 ‘granted_qos’变量是一个整数列表,它提供了代理为每个不同的订阅请求授予的QoS级别。 (6)on_unsubscribe() 当代理响应取消订阅请求时调用。 on_unsubscribe(client, userdata, mid): mid匹配从相应的unsubsc...
OnPacketRead 当从客户端接收到数据包时调用。允许对数据包进行修改。 OnPacketEncode 在数据包被编码并发送给客户端之前立即调用。允许修改数据包。 OnPacketSent 在数据包已发送给客户端后调用。 OnPacketProcessed 在数据包已接收并成功由服务端处理后调用。 OnSubscribe 当客户端订阅一个或多个主题时调用。允许修改...
mqttc.on_publish = on_publish mqttc.on_subscribe = on_subscribe mqttc.on_log = on_log # 设置账号密码(如果需要的话) #mqttc.username_pw_set(username, password=password) mqttc.connect(strBroker, port, 60) mqttc.subscribe(topic, 0) mqttc.loop_forever() server.py 1 2 3 4 5 6 7 ...
mqttc.on_subscribe = on_subscribe mqttc.on_log = on_log # 设置账号密码 # mqttc.username_pw_set(username, password=password) mqttc.connect(strBroker, port, 60) mqttc.subscribe(topic, 0) mqttc.loop_forever() MqttServer.py import sys ...
on_subscribe(client, userdata, mid, granted_qos) — 订阅的回调函数 on_unsubscribe(client, userdata, mid) — 取消订阅的回调函数 on_log(client, userdata, level, buf) — 客户端有日志信息时调用, 能与 Python Log 同时使用 等级包括:MQTT_LOG_INFO,MQTT_LOG_NOTICE,MQTT_LOG_WARNING,MQTT_LOG_ERR,...
payload)) # subscribe 消息 def on_subscribe(): mqttClient.subscribe(topic="chat", qos=2) mqttClient.on_message = on_message_come # 消息到来处理函数 def main(): on_mqtt_connect() on_publish(topic="chat", payload="Hello Python!", qos=2) on_subscribe() while True: pass if __name...
myClient.on_connect=self.on_connectself.myClient.on_message=self.on_messageself.myClient.on_...
HaaS520 是 DTU HaaS530 是 DTU HaaS531 是 DTU HaaS632-LT32V 是 模组 HaaS600-EC600S 是 模组 HaaS600-EC600N 是 模组 HaaS600-EC600U 是 模组 HaaS600-N715 是 模组 createClient(Object options) 客户端创建一个MQTT Client实例,创建时会连接MQTT服务端。
on_subscribe on_unsubscribe See the detailed documentation of these functions in the mqtt.init.lua file. Back to content Performance tuning TODO: describe me. Back to content Examples The examples/connect.lua file shows how to connect to an MQTT broker. The examples/producer_consumer_queue.lu...