KombuPython 的消息库
Kombu 是一个为Python写的消息库。Kombu 旨在使消息通知在Python中更容易。
示例代码:
from kombu import Connection, Exchange, Queue media_exchange = Exchange('media', 'direct', durable=True) video_queue = Queue('video', exchange=media_exchange, routing_key='video') def process_media(body, message): print body message.ack() # connections with Connection('amqp://guest:guest@localhost//') as conn: # produce producer = conn.Producer(serializer='json') producer.publish({'name': '/tmp/lolcat1.avi', 'size': 1301013}, exchange=media_exchange, routing_key='video', declare=[video_queue]) # the declare above, makes sure the video queue is declared # so that the messages can be delivered. # It's a best practice in Kombu to have both publishers and # consumers declare the queue. You can also declare the # queue manually using: # video_queue(conn).declare() # consume with conn.Consumer(video_queue, callbacks=[process_media]) as consumer: # Process messages and handle events on all channels while True: conn.drain_events() # Consume from several queues on the same channel: video_queue = Queue('video', exchange=media_exchange, key='video') image_queue = Queue('image', exchange=media_exchange, key='image') with connection.Consumer([video_queue, image_queue], callbacks=[process_media]) as consumer: while True: connection.drain_events()
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