50 lines
1.6 KiB
Python
50 lines
1.6 KiB
Python
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import time
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import paho.mqtt.client as mqtt
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from tool import *
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from config import broker, port, subscribe_topic, username, password, info_topic
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times = 6
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class DataUploadClient:
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def __init__(self, broker, port, topic, username, password):
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self.broker = broker
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self.port = port
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self.topic = topic
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self.username = username
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self.password = password
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# 千万不要指定client_id 不然死翘翘
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self.client = mqtt.Client()
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self.client.username_pw_set(self.username, self.password)
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self.client.on_connect = self.on_connect
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self.client.on_disconnect = self.on_disconnect
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def on_connect(self, client, userdata, flags, rc):
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global times
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times = 6
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self.client.publish(info_topic, payload=publish_payload(200, subscribe_topic + ':连接成功，执行数据推送和本地存储'), qos=0)
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subprocess.Popen(['/usr/bin/bash /home/pi/lot_manager/bash/start_data_upload.sh'], shell=True)
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def on_disconnect(self, client, userdata, rc):
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# print("失败，执行本地存储")
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subprocess.Popen(['/usr/bin/bash /home/pi/lot_manager/bash/stop_data_upload.sh'], shell=True)
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def start(self):
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self.client.connect(self.broker, self.port)
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if __name__ == '__main__':
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MQTT = DataUploadClient(broker, port, subscribe_topic, username, password)
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while True:
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try:
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MQTT.start()
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MQTT.client.loop_forever()
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except:
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time.sleep(10)
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if times == 0:
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MQTT.on_disconnect(None, None, None)
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times -= 1
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