Python-RabbitMQ-fanout（广播模式）

生产者：fanout_publiser.py

import pika
import sys
connection = pika.BlockingConnection(pika.ConnectionParameters("localhost"))

channel = connection.channel()
#有的机器type不行，换成exchange_type就没问题了
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:fanout_consumer.py

import pika
import sys
connection = pika.BlockingConnection(pika.ConnectionParameters("localhost"))

channel = connection.channel()

channel.exchange_declare(exchange='logs',
                         exchange_type='fanout')
#exclusive 不指定queue名字 ，rabbitmq会随机分一个，exclusive会在使用此queue的消费者
#断开后，自动将queue删除
result =channel.queue_declare(exclusive=True)
queue_name=result.method.queue#取到queue名字
print("random queuename",queue_name)
#绑定转发器，让发送端知道是哪个queue
channel.queue_bind(exchange='logs',
                   queue=queue_name)
print(' [*] Waiting for logs, To exit press CRTL +C')

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

channel.basic_consume(callback,
                      queue=queue_name,
                      no_ack=True)#不确认消息
channel.start_consuming()