基于paho.mqtt.client封装的辅助类，隐藏了一些不常用业务场景下的方法和特性。
pip install paho-mqtt
- Python 3.5+
- paho-mqtt 1.4
- Python3 venv
定义 on_connect() 回调函数
def on_connect(client, userdata, flags, rc):
if "0" == str(rc):
topic = input("Connect success....plz input topic that you wish to listen:")
if len(topic) > 0:
client.subscribe(topic)
print("listen starting...")
else:
print("Connected.")
定义 on_message() 回调函数
def on_message(client, userdata, message):
print("Received message:",message.payload.decode("utf-8"))
client.publish("test/reply","这是一句回复")
声明 MqttAssist 实例
client = MqttAssist()
绑定回调函数
client.event("on_connect",on_connect)
client.event("on_message",on_message)
调用connect()与代理进行连接
host = { "host":"iot.yours.com","port":1883 }
client.connect(svr=host)
如果服务器设置了用户名和密码，则需要在connect()时传入授权信息，如
auth = { "username":"admin","password":"123"}
client.connect(svr=host,auth=auth)
调用loop来等待消息到达，当接受到代理发来的消息时，会触发on_message()回调
client.loop()