时间:2020-11-29来源:www.pcxitongcheng.com作者:电脑系统城
介绍
rabbitmq默认有7个交换机,其中amq.rabbitmq.log为系统日志的交换机,这个日志为topic类型,会有三个等级的(routing_key)的日志发送到这个交换机上。
代码如下
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#!/usr/bin/env python # -*- coding: utf-8 -*- import pika # ########################### 订阅者 ########################### credentials = pika.PlainCredentials( "用户名" , "密码" ) connection = pika.BlockingConnection(pika.ConnectionParameters( 'ip' , 5672 , '/' , credentials = credentials)) channel = connection.channel() # 声明队列 channel.queue_declare(queue = 'info_queue' ,durable = True ) channel.queue_declare(queue = 'error_queue' ,durable = True ) channel.queue_declare(queue = 'warning_queue' ,durable = True ) # 绑定 channel.queue_bind(exchange = 'amq.rabbitmq.log' ,queue = "info_queue" ,routing_key = "info" ) channel.queue_bind(exchange = 'amq.rabbitmq.log' ,queue = "error_queue" ,routing_key = "error" ) channel.queue_bind(exchange = 'amq.rabbitmq.log' ,queue = "warning_queue" ,routing_key = "warning" ) print ( ' [*] Waiting for logs. To exit press CTRL+C' ) def callback(ch, method, properties, body): print ( " [x] %r" % body) print ( " [x] Done" ) ch.basic_ack(delivery_tag = method.delivery_tag) channel.basic_consume( "info_queue" ,callback,auto_ack = False ) channel.basic_consume( "error_queue" ,callback,auto_ack = False ) channel.basic_consume( "warning_queue" ,callback,auto_ack = False ) channel.start_consuming() ''' 然后发布者只需要给exchange发送消息,然后exchange绑定的多个队列都有这个消息了。订阅者就收到这个消息了。 ''' |
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