lot_manager/data_upload.py

50 lines
1.6 KiB
Python

import time
import paho.mqtt.client as mqtt
from tool import *
from config import broker, port, subscribe_topic, username, password
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
# 千万不要指定client_id 不然死翘翘
self.client = mqtt.Client()
self.client.username_pw_set(self.username, self.password)
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=subscribe_topic + ':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.connect(self.broker, self.port)
if __name__ == '__main__':
MQTT = DataUploadClient(broker, port, subscribe_topic, username, password)
while True:
try:
MQTT.start()
MQTT.client.loop_forever()
except:
time.sleep(10)
if times == 0:
MQTT.on_disconnect(None, None, None)
times -= 1