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)