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MQTT.py
1
MQTT.py
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@ -34,7 +34,6 @@ class MQTTClient:
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def on_connect(self, client, userdata, flags, rc):
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print("Connected with result code " + str(rc))
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self.client.subscribe(self.topic)
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client.subscribe('lot_mqtt')
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client.publish('success', payload='成功订阅lot_mqtt' + str(time.time()), qos=0)
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def on_disconnect(self, client, userdata, rc):
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@ -1,43 +1,55 @@
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import os
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import subprocess
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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 on_connect(client, userdata, flags, rc):
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global times
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if rc == 0:
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print("连接成功,执行数据推送和本地存储")
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client.publish('success', payload='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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times = 3
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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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def on_disconnect(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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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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times = 3
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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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client = mqtt.Client(client_id=device_name)
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client.username_pw_set("demo", "123456")
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# Specify callback function
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client.on_connect = on_connect
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client.on_disconnect = on_disconnect
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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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# 尝试连接 MQTT 服务器
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while True:
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try:
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# ceshi-mqtt.lihaink.cn
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client.connect('192.168.1.27', 1883)
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client.loop_forever()
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except Exception as e:
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print("Connection failed:", e)
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if times == 0:
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# 执行本地存储
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on_disconnect(None, None, None)
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print("正在尝试重连")
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time.sleep(3)
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times -= 1
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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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@ -0,0 +1,43 @@
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import os
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import subprocess
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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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def on_connect(client, userdata, flags, rc):
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global times
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if rc == 0:
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print("连接成功,执行数据推送和本地存储")
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client.publish('success', payload='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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times = 3
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def on_disconnect(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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times = 3
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client = mqtt.Client(client_id=device_name)
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client.username_pw_set("demo", "123456")
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# Specify callback function
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client.on_connect = on_connect
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client.on_disconnect = on_disconnect
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# 尝试连接 MQTT 服务器
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while True:
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try:
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# ceshi-mqtt.lihaink.cn
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client.connect('192.168.1.27', 1883)
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client.loop_forever()
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except Exception as e:
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print("Connection failed:", e)
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if times == 0:
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# 执行本地存储
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on_disconnect(None, None, None)
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print("正在尝试重连")
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time.sleep(3)
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times -= 1
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