Python-连接RabbitMq

import pika
import json

class RaMqStart(object):
    def __init__(self,url,user,pwd,vhost,queue,key,exchange):
        # 初始化数据
        '''
        user：用户 pwd：密码 vhost：虚拟主机 queue：队列 exchange:交换机 key：交换机绑定队列的关键字
        '''
        self.url = url
        self.user = user
        self.pwd = pwd
        self.vhost = vhost
        self.exchange = exchange
        self.queue = queue
        self.key = key

        #MQ认证、链接MQ
        self.credentials = pika.PlainCredentials(self.user, self.pwd)
        self.cnnection = pika.BlockingConnection(
            pika.ConnectionParameters(self.url, 5672, self.vhost,  self.credentials))
        self.channel = self.cnnection.channel()

    def start_producer(self,body):
        #声明队列
        self.channel.queue_declare(queue=self.queue,
                              durable=True)
        # 发送、发布消息：routing_key--队列名称，body--消息
        self.channel.basic_publish(exchange=self.exchange,
                              routing_key=self.key,
                              body=body)
    def mq_close(self):
        #关闭通讯
        self.cnnection.close()

from public import RaMqStart
import json

def mq_run(json_body,vhost,queue,exchange):


    mq = RaMqStart(
        url="common-mq-test01.shein.com",
        user=vhost,
        pwd=vhost,
        vhost=vhost,
        queue=queue,
        exchange=exchange,
        key=""
    )

    #解析json
    body = json.dumps(json_body)

    #发送消息
    mq.start_producer(body=body)
    mq.mq_close()

if __name__ == '__main__':
    pass