pikapython/test/python/mqtt/mqtt_subscribe.py

import mqtt
import PikaStdDevice

client = mqtt.MQTT('broker.emqx.io', port=1883, clinetID='clientid', username='name_', password='passwd_')

ret = client.connect()
print("connect ret:%d" % ret)


def callback0(signal):
    recv_msg = client.getMsg(signal)
    recv_topic = client.getTopic(signal)
    recv_qos = client.getQos(signal)
    print("py0 cb: %s-qos:%d-->>%s" % (recv_topic, recv_qos, recv_msg))


def callback1(signal):
    recv_msg = client.getMsg(signal)
    recv_topic = client.getTopic(signal)
    recv_qos = client.getQos(signal)
    print("py1 cb: %s-qos:%d-->>%s" % (recv_topic, recv_qos, recv_msg))


def callback2(signal):
    recv_msg = client.getMsg(signal)
    recv_topic = client.getTopic(signal)
    recv_qos = client.getQos(signal)
    print("py2 cb: %s-qos:%d-->>%s" % (recv_topic, recv_qos, recv_msg))

def reconnect_mq(signal):
    print('lost mqtt connect and try to reconnect')
    print('signal:',signal)

client.setKeepAlive(5)
ret = client.subscribe('topic_pikapy_qos0', callback0, 0)
print("subscribe ret:%d" % ret)
ret = client.subscribe('topic_pikapy_qos1', callback1, 1)
print("subscribe ret:%d" % ret)
ret = client.subscribe('topic_pikapy_qos2', callback2, 2)
print("subscribe ret:%d" % ret)

# sleep wait for recv data
T = PikaStdDevice.Time()
T.sleep_s(5)

out = client.listSubscribeTopic()
print('listSubscribeTopic out', out)

# client.unsubscribe('topic_pikapy_qos0');
# client.unsubscribe('topic_pikapy_qos1');
# client.unsubscribe('topic_pikapy_qos2');
# T.sleep_s(5)
# out2 = client.listSubscribeTopic()
# print('listSubscribeTopic out2',out2)

ret = client.setDisconnectHandler(reconnect_mq);
print("setDisconnectHandler:%d" % ret)

# ret = client.setWill(1,'topic_will',1,'lost mqtt connect')
T.sleep_s(30)
# exit()
ret = client.disconnect()
print("disconnect ret:%d" % ret)