rabbitmq的笔记（三）用Python生产和消费

消费者：

#!/usr/local/bin/python2.7

# -*- coding: utf-8 -*-

import pika

 

connection = pika.BlockingConnection(pika.ConnectionParameters('172.16.148.79', 5672, '/'))

channel = connection.channel()

 

def callback(channel, method, properties, message):

print("get resultc from queue %s" % message)

 

channel.basic_consume('rhj',

callback,)

 

channel.start_consuming()

 

生产者：

#!/usr/local/bin/python2.7

# -*- coding: utf-8 -*-

import pika

 

connection = pika.BlockingConnection(pika.ConnectionParameters('172.16.148.78', 5672,'/'))

channel = connection.channel()

 

channel.queue_declare(queue='rhj')

 

channel.basic_publish(exchange='',

routing_key='rhj',

body='rabbitmq003')

connection.close()

先执行消费者，会一直监听队列。等执行生产者，消息马上被消费，显示在消费者那里。

这样的程序适合在新安装的rabbitmq和各种迁移升级里面把读写过程展示出来，可以体现在变更的过程中有没有消息丢失了。

如果遇到集群，要填写所有节点的读写，这一在参数的一栏这样填写。

集群的写法：

Parameters = (

pika.ConnectionParameters('39.104.65.201', 5672,'/',credentials = credentials,connection_attempts=5, retry_delay=1),

pika.ConnectionParameters('39.99.35.129', 5672,'/',credentials = credentials,connection_attempts=5, retry_delay=1),

pika.ConnectionParameters('39.104.24.129', 5672,'/',credentials = credentials,connection_attempts=5, retry_delay=1))

connection = pika.BlockingConnection(Parameters)