RabbitMQ之Topics（更加细粒度的接收消息）

 1 #!/usr/bin/env python
 2 # -*- coding:utf-8 -*-
 3 
 4 import pika
 5 import sys
 6 
 7 credentials = pika.PlainCredentials(‘admin‘, ‘admin123456‘)
 8 connection = pika.BlockingConnection(pika.ConnectionParameters(host=‘192.168.1.6‘, credentials=credentials))
 9 channel = connection.channel()
10 
11 channel.exchange_declare(exchange=‘topic_logs‘, exchange_type=‘topic‘)
12 
13 routing_key = sys.argv[1] if len(sys.argv) > 2 else ‘anonymous.info‘
14 message = ‘ ‘.join(sys.argv[2:]) or ‘Hello World!‘
15 channel.basic_publish(
16     exchange=‘topic_logs‘, routing_key=routing_key, body=message)
17 print(" [x] Sent %r:%r" % (routing_key, message))
18 connection.close()

 1 #!/usr/bin/env python
 2 # -*- coding:utf-8 -*-
 3 
 4 import pika
 5 import sys
 6 
 7 credentials = pika.PlainCredentials(‘admin‘, ‘admin123456‘)
 8 connection = pika.BlockingConnection(pika.ConnectionParameters(host=‘192.168.1.6‘, credentials=credentials))
 9 channel = connection.channel()
10 
11 channel.exchange_declare(exchange=‘topic_logs‘, exchange_type=‘topic‘)
12 
13 result = channel.queue_declare(‘‘, exclusive=True)
14 queue_name = result.method.queue
15 
16 binding_keys = sys.argv[1:]
17 if not binding_keys:
18     sys.stderr.write("Usage: %s [binding_key]...\n" % sys.argv[0])
19     sys.exit(1)
20 
21 for binding_key in binding_keys:
22     channel.queue_bind(
23         exchange=‘topic_logs‘, queue=queue_name, routing_key=binding_key)
24 
25 print(‘ [*] Waiting for logs. To exit press CTRL+C‘)
26 
27 
28 def callback(ch, method, properties, body):
29     print(" [x] %r:%r" % (method.routing_key, body))
30 
31 
32 channel.basic_consume(
33     queue=queue_name, on_message_callback=callback, auto_ack=True)
34 
35 channel.start_consuming()