rabbitmq

rabbitmq

kafaka. --微博在用的 比rabbitmq强大的多

activemq

rockemq

mq--就是队列

防止大流量的并发，做一个缓冲

下载安装

https://www.rabbitmq.com/

点击 Download+Installation

using the Pika Python client -->使用pika作为python链接rabbitmq的客户端

​ pip3 install pika

Producer.py:

import pika

connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()

channel.queue_declare(queue='hello')


channel.basic_publish(exchange='',
                      routing_key='hello',
                      body='Hello World!')

print(" [x] Sent 'Hello World!'")
connection.close()

Consumer.py:

import pika

connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()

channel.queue_declare(queue='hello')

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

channel.basic_consume(queue='hello',
                      auto_ack=True,
                      on_message_callback=callback)
print(' [*] Waiting for messages. To exit press CTRL+C')
channel.start_consuming()