lot_manager/data_upload.py

import configparser
import time

import paho.mqtt.client as mqtt

from device import device_name
from tool import *
config = configparser.ConfigParser()
config.read('/home/pi/lot_manager/conf/main/config.conf')
times = 6


class DataUploadClient:
    def __init__(self, broker, port, topic, username, password):
        self.broker = broker
        self.port = port
        self.topic = topic
        self.username = username
        self.password = password
        self.client = mqtt.Client(client_id=device_name)
        self.client.on_connect = self.on_connect
        self.client.on_disconnect = self.on_disconnect

    def on_connect(self, client, userdata, flags, rc):
        global times
        times = 6
        self.client.publish('success', payload='连接成功，执行数据推送和本地存储' + str(time.time()), qos=0)
        subprocess.Popen(['/usr/bin/bash /home/pi/lot_manager/bash/start_data_upload.sh'], shell=True)

    def on_disconnect(self, client, userdata, rc):
        # print("失败，执行本地存储")
        subprocess.Popen(['/usr/bin/bash /home/pi/lot_manager/bash/stop_data_upload.sh'], shell=True)

    def start(self):
        self.client.username_pw_set(self.username, self.password)
        self.client.connect(self.broker, self.port)


if __name__ == '__main__':
    broker = config.get("broker", "host")
    port = config.get("broker", "port")
    topic = config.get("topic", "name")
    username = config.get("security", "username")
    password = config.get("security", "password")
    MQTT = DataUploadClient(broker, port, topic, username, password)
    while True:
        try:
            MQTT.start()
            MQTT.client.loop_forever()
        except:
            # print("重新连接")
            time.sleep(10)
            if times == 0:
                MQTT.on_disconnect(None, None, None)
            times -= 1