Python连接巴法云,通过mqtt协议,和tcp协议
作者:互联网
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()
标签:utf,socket,Python,巴法云,tcp,mqtt,client,print 来源: https://www.cnblogs.com/bemfa/p/15435616.html