RabbitMQ 实现广播订阅

# 所有订阅者都可收到广播

# 生产者

import pika, sys

connection = pika.BlockingConnection(
                             pika.ConnectionParameters(host='localhost'))  # 连接本地的MQ

channel = connection.channel()

channel.exchange_declare(exchange='logs', exchange_type='fanout')

message = ' '.join(sys.argv[1:]) or 'info: Hello World!'


channel.basic_publish(exchange='logs', routing_key='', body=message)
print('[x] Sent %r' % message)

connection.close()    

# 消费者

import pika

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

channel.exchange_declare(exchange='logs', exchange_type='fanout')
result = channel.queue_declare(exclusive=True)
queue_name = result.method.queue  # queue 名称

channel.queue_bind(exchange='logs', queue=queue_name)

print('[*] Waiting for logs. To exit press CTRL+C')


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

channel.basic_consume(callback, queue=queue_name, no_ack=True)
channel.start_consuming()