# -*- coding:utf-8 -*-
from multiprocessing import Process
import paho.mqtt.publish as publish
from Data.data import *
import paho.mqtt.subscribe as subscribe
from common.yaml_common_method import *
import time,json,yaml,os
"""基础数据yaml获取"""
data = yaml_method_read("data")
host = data["host"]#IP地址
prot = data["port"]#端口
pub_url = data["pub_url"]+"/register"#发送
sub_url = data["sub_url"]+"/register/response"#订阅
"""主题请求参数yaml获取"""
publish_yaml = yaml_method_read("publish")
publish_msg = publish_yaml["upload_service"]
client_id = time.strftime('mq:test:%Y%m%d%H%M%S',time.localtime(time.time()))
class Mqtt_method_info():
    def mqtt_publish(self):
        #这里是发送的函数
        msg = publish_msg
        print("------------------------------Send_sub------------------------------")
        print(pub_url)
        print("----------------------------Send_message----------------------------")
        print(msg)
        msg = json.dumps(msg)
        publish.single(pub_url, msg, qos=1, hostname=host, port=prot, client_id=client_id)
        print("------------------------------End_send------------------------------")

    def mqtt_subscribe(self):
        #这里是订阅的函数
        print("--------------------------Subscribe_topics--------------------------")
        print(sub_url)
        msg = subscribe.simple(sub_url, qos=1, hostname=host, port=prot, client_id=client_id)
        msg_payload = json.loads(msg.payload.decode("utf-8"))
        print("---------------------------Return_message----------------------------")
        print(msg_payload)
        yaml_method_write("mqtt_return_data",msg_payload)
    def implement(self):
        pub = Process(target=Mqtt_method_info().mqtt_publish)#发送线程
        sub = Process(target=Mqtt_method_info().mqtt_subscribe)#订阅线程
        sub.start()
        time.sleep(1)
        pub.start()
        sub.join()
        print("执行完毕")
if __name__ == '__main__':
    Mqtt_method_info().implement()

 这里讲一下python-mqtt测试脚本：

我们会使用到python的paho-mqtt库，同样pip安装下就行，失败的话大部分是需要用镜像站的情况

这份代码分为yaml文件读取发送的数据，这里只有操作的方法，大家如果需要使用可以把发送、订阅的函数中修改，只运行方法，然后自己再通过各种文件管理数据