Python-RabbitMQ-direct（广播模式）

direct绑定模式的，选择性接收

生产者：direct_publiser.py

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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

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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]\n" % 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()