python paho客户端MQTT订阅服务器未获取
我正在使用python Paho客户端 我在我的函数中使用这个 我的代码正在显示python paho客户端MQTT订阅服务器未获取,python,mqtt,mosquitto,paho,Python,Mqtt,Mosquitto,Paho,我正在使用python Paho客户端 我在我的函数中使用这个 我的代码正在显示 import paho.mqtt.client as mqtt import time, logging broker = "127.0.0.1" port = 1883 QOS = 0 CLEAN_SESSION = True # error logging # use DEBUG,INFO,WARNING def on_subscribe(client, userdata, mi
import paho.mqtt.client as mqtt
import time, logging
broker = "127.0.0.1"
port = 1883
QOS = 0
CLEAN_SESSION = True
# error logging
# use DEBUG,INFO,WARNING
def on_subscribe(client, userdata, mid, granted_qos): # create function for callback
# print("subscribed with qos",granted_qos, "\n")
time.sleep(1)
print("sub acknowledge message id=" + str(mid))
pass
def on_disconnect(client, userdata, rc=0):
print("DisConnected result code " + str(rc))
def on_connect(client, userdata, flags, rc):
print("Connected flags" + str(flags) + "result code " + str(rc))
def on_message(client, userdata, message):
msg = str(message.payload.decode("utf-8"))
print("message received in mqtt_subscriber " + msg)
def on_publish(client, userdata, mid):
print("message published " + str(mid))
topic1 = "test"
client = mqtt.Client("RDAresp", False) # create client object
client.on_subscribe = on_subscribe # assign function to callback
client.on_disconnect = on_disconnect # assign function to callback
client.on_connect = on_connect # assign function to callback
client.on_message = on_message
client.connect(broker, port) # establish connection
time.sleep(1)
client.loop_start()
client.subscribe("RemoteDoorAccess")
count = 1
while True: # runs forever break with CTRL+C
print("publishing on topic ", topic1)
msg = "message : RemoteDoorAccess_resp is published "
client.publish(topic1, msg)
count += 1
time.sleep(5)
和在views.py中
def on_message(client, userdata, message):
msg = str(message.payload.decode("utf-8"))
print("message authority resp module " + msg)
def on_subscribe(client, userdata, mid, granted_qos): # create function for callback
print("subscribed with qos", granted_qos, "\n")
time.sleep(1)
pass
def on_disconnect(client, userdata, rc=0):
print("DisConnected result code " + str(rc))
def on_connect(client, userdata, flags, rc):
print("Connected flags" + str(flags) + "result code " + str(rc))
def on_publish(client, userdata, mid):
print("message published " + str(mid))
def mqttConnection():
topic = "RemoteDoorAccess"
client = mqtt.Client("RDA", False) # create client object
client.on_subscribe = on_subscribe # assign function to callback
client.on_disconnect = on_disconnect # assign function to callback
client.on_connect = on_connect # assign function to callback
client.on_message = on_message
client.connect(broker, port) # establish connection
time.sleep(1)
client.subscribe("test")
time.sleep(1)
print("publishing on topic ", topic)
msg = "RemoteDoor Access published"
client.publish(topic, msg)
time.sleep(10)
@api_view(['GET'])
@permission_classes([])
def remotedooraccess_mobile(request):
mqttConnection()
return Response({msg: validation["FDP34"]}, status=status.HTTP_200_OK)
此处主题“测试”已发布,但未订阅
请检查视图输出
在my views.py on_中,主题测试不调用消息函数。
我怎样才能解决这个问题。
我完全被困在这里了。。in view.py subscribe函数未调用
我对mqtt很陌生。
请帮助您需要在
视图.py
代码中启动客户端循环,否则就没有任何东西可以实际运行on_message()
回调
您还应该将所有调用移动到
client.subscribe()
以进入on\u connect
回调,并删除对time.sleep()的大部分调用。请不要发布文本图像。发布实际文本,然后使用工具设置其格式。图像可能很难阅读,而且对于使用屏幕阅读器的人来说是不可能的。@hardillb好的。我会尽力的谢谢你的重播。。工作正常。谢谢谢谢:)