rabbitmq之生产者消费者模型

一、基于Queue实现的生产者消费者模型

import Queue
import threading

message = Queue.Queue(10)

def producer(i):
    while True:
        message.put(i)

def consumer(i):
    while True:
        msg = message.get()

for i in range(12):
    t = threading.Thread(target=producer, args=(i,))
    t.start()

for i in range(10):
    t = threading.Thread(target=consumer, args=(i,))
    t.start()

二、Rabbitmq的生产者消费者模型基本使用

1、对于RabbitMQ来说，生产和消费不再针对内存里的一个Queue对象，而是某台服务器上的RabbitMQ Server实现的消息队列

2、生产者

import pika

# 无密码
# 创建连接
# connection = pika.BlockingConnection(pika.ConnectionParameters('127.0.0.1'))

# 有密码
# 用户登录
credentials = pika.PlainCredentials("admin","admin")
# 创建连接
connection = pika.BlockingConnection(pika.ConnectionParameters('101.133.225.166',credentials=credentials))
# 创建信道
channel = connection.channel()
# 创建队列，或声明已有队列
channel.queue_declare(queue='myqueue')
# 发布消息
channel.basic_publish(exchange='', routing_key='myqueue', body='hello world') 
# 断开连接
connection.close()

3、消费者

import pika

credentials = pika.PlainCredentials("admin","admin")
connection = pika.BlockingConnection(pika.ConnectionParameters('101.133.225.166',credentials=credentials))
channel = connection.channel()
channel.queue_declare(queue='myqueue')

def callback(ch, method, properties, body):
    print("消费者接受到了任务: %r" % body)

channel.basic_consume(queue='myqueue', on_message_callback=callback, auto_ack=True)
channel.start_consuming()