Python连接巴法云,通过mqtt协议,和tcp协议
2021/10/22 9:11:42
本文主要是介绍Python连接巴法云,通过mqtt协议,和tcp协议,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
第一,tcp协议连接
说明:
tcp服务器地址:bemfa.com 端口 8344
tcp协议详细订阅、发布指令,见接入文档:点击跳转
# -*- coding: utf-8 import socket import threading def connTCP(): global tcp_client_socket # 创建socket tcp_client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # IP 和端口 server_ip = 'bemfa.com' server_port = 8344 try: # 连接服务器 tcp_client_socket.connect((server_ip, server_port)) #发送订阅指令 substr = 'cmd=1&uid=4d9ec352e0376f2110a0c601a2857225&topic=led002\r\n' tcp_client_socket.send(substr.encode("utf-8")) except: time.sleep(2) connTCP() #心跳 def Ping(): # 发送心跳 try: keeplive = 'ping\r\n' tcp_client_socket.send(keeplive.encode("utf-8")) except: time.sleep(2) connTCP() #开启定时,30秒发送一次心跳 t = threading.Timer(30,Ping) t.start() connTCP() Ping() while True: # 接收服务器发送过来的数据 recvData = tcp_client_socket.recv(1024) if len(recvData) != 0: print('recv:', recvData.decode('utf-8')) else: print("conn err") connTCP()
第二,MQTT 协议连接
说明:
mqtt服务器地址:bemfa.com 端口:9501
连接服务器
1.用户私钥作为连接MQTT服务器的客户端ID
2.连接时用户名和密码为空,或随意填写,即设备连接时不需要账号和密码
mqtt程序使用前需安装mqtt库文件,安装命令:
pip3 install paho-mqtt
# -*- coding: utf-8 -*- # 以下代码在2021年10月21日 python3.10环境下运行通过 import paho.mqtt.client as mqtt HOST = "bemfa.com" PORT = 9501 client_id = "4d9ec352e0376f2110a0c601a2857225" #连接并订阅 def on_connect(client, userdata, flags, rc): print("Connected with result code "+str(rc)) client.subscribe("led00202") # 订阅消息 #消息接收 def on_message(client, userdata, msg): print("主题:"+msg.topic+" 消息:"+str(msg.payload.decode('utf-8'))) #订阅成功 def on_subscribe(client, userdata, mid, granted_qos): print("On Subscribed: qos = %d" % granted_qos) # 失去连接 def on_disconnect(client, userdata, rc): if rc != 0: print("Unexpected disconnection %s" % rc) client = mqtt.Client(client_id) client.username_pw_set("userName", "passwd") client.on_connect = on_connect client.on_message = on_message client.on_subscribe = on_subscribe client.on_disconnect = on_disconnect client.connect(HOST, PORT, 60) client.loop_forever()
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