双11消息队列 购买

import pika

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

channel.queue_declare(queue='order_queue')

message = 'New Order Placed'
channel.basic_publish(exchange='',
                      routing_key='order_queue',
                      body=message)
print(f" [x] Sent {message}")

connection.close()

import pika

def callback(ch, method, properties, body):
    print(f" [x] Received {body}")

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

channel.queue_declare(queue='order_queue')

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

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