56 lines
1.7 KiB
Python
56 lines
1.7 KiB
Python
import json
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import time
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import paho.mqtt.client as mqtt
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from device import device_name
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from tool import *
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def valid(msg, client):
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origin_data = json.loads(msg.payload.decode('utf-8'))
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if 'msg' not in origin_data:
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client.publish('error', payload='msg must be supplied', qos=0)
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return False
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if 'device_name' not in origin_data:
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client.publish('error', payload='device_name must be supplied', qos=0)
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return False
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client.publish('error', payload=device_name, qos=0)
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if device_name != origin_data['device_name']:
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return False
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return True
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class DataUploadClient:
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def __init__(self, broker, port, topic):
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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.client = mqtt.Client()
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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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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)
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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('192.168.1.27', 1883, 'lot_mqtt')
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while True:
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try:
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MQTT.start()
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if MQTT.client.is_connected():
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print("连接成功")
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MQTT.client.loop_forever()
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except:
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print("重新连接")
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time.sleep(1)
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