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  • Python-RabbitMQ-direct(广播模式)

    direct绑定模式的,选择性接收

    生产者:direct_publiser.py

    import pika,sys
    
    connection = pika.BlockingConnection(pika.ConnectionParameters("localhost"))
    
    channel = connection.channel()
    
    channel.exchange_declare(exchange='direct_logs',
                             exchange_type='direct')
    
    severity = sys.argv[1] if len(sys.argv) > 1 else 'info' #级别
    message = ' '.join(sys.argv[2:]) or 'Hello World!'#消息
    
    channel.basic_publish(exchange='direct_logs',
                          routing_key=severity,
                          body=message)
    print(' [x] Sent %r:%r' % (severity, message))
    connection.close()
    

     消费者:direct_consumer.py

    import pika,sys
    
    connection = pika.BlockingConnection(pika.ConnectionParameters("localhost"))
    
    channel = connection.channel()
    
    channel.exchange_declare(exchange='direct_logs',
                             exchange_type='direct')
    
    result = channel.queue_declare(exclusive=True)
    queue_name = result.method.queue#获取queue名字
    
    
    severities = sys.argv[1:]
    if not severities:
        sys.stderr.write("Usage: %s [info] [warning] [error]
    " % sys.argv[0])
        sys.exit(1)
    
    for severity in severities:
        channel.queue_bind(exchange='direct_logs',
                           queue=queue_name,
                           routing_key=severity)
    
    print(' [*] Waiting for logs. To exit  press CTRL +C')
    
    def callback(ch, method, properties,body):
        print("[x] %r:%r" % (method.routing_key, body))
    
    channel.basic_consume(callback,
                          queue=queue_name,
                          no_ack=True)
    
    
    channel.start_consuming()
    
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  • 原文地址:https://www.cnblogs.com/fuyuteng/p/9254526.html
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