RabbitMQ Hello篇

生产者:

#!/usr/bin/env python
#coding:utf-8

import pika
#连接到服务上的broker
SERVER_IP = "106.2.111.53"
PORT = 5672
credentials = pika.PlainCredentials("admin", "admin")
parameters = pika.ConnectionParameters(SERVER_IP, PORT, '/', credentials)
connection = pika.BlockingConnection(parameters)
channel = connection.channel()

'''
新建队列(hello)
    如果我们向不在的队列发送消息会被rabbitmq丢弃
'''
channel.queue_declare(queue='hello')

'''
消息通过exchange发送给队列(消息不会直接发送给队列)
一个空字符串标识的默认exchange， 允许我们精确指定消息应该发送到那个队列
队列名字通过routing_key参数来指定
'''
channel.basic_publish(exchange='', routing_key="hello", body="Hello,RabbitMQ")
print("[x]Productor send 'Hello RabbitMQ'")
connection.close()

消费者:

#!/usr/bin/env python
#coding:utf-8

import pika

SERVER_IP = "106.2.111.53"
PORT = 5672
credentials = pika.PlainCredentials("admin", "admin")
parameters = pika.ConnectionParameters(SERVER_IP, PORT, '/', credentials)
connection = pika.BlockingConnection(parameters)
channel = connection.channel()
#确保队列存在，多次执行，只有一个队列被创建
channel.queue_declare(queue="hello")

def callback(ch, method, properties, body):
    print("[x]Customer Received %r" %body)

#从队列hello中接收消息--队列必须存在
channel.basic_consume(callback, queue="hello", no_ack=True)
print("[*]Waiting for messages. To exit press Ctrl+C")
#进入无限循环，等待数据，并在需要的时候运行callbacks
channel.start_consuming()

eg：生产者循环1-100 发送消息，启动两个消费者，如下图