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  • 4.rabbitmq 路由

    1. 生产者

    #coding:utf8
    
    import pika
    import json
    import sys
    
    severity = sys.argv[1] if len(sys.argv) > 2 else 'info'
    message = ' '.join(sys.argv[2:]) or "hello word"
    
    connection = pika.BlockingConnection(pika.ConnectionParameters(
                   'localhost'))
    channel = connection.channel()
    
    channel.exchange_declare(exchange='direct_logs', exchange_type='direct')
    # 创建交换机
    
    
    channel.basic_publish(exchange='direct_logs',
        routing_key= severity,
        body=message)
    print " [x] Sent 'Hello World!'" + message
    
    connection.close()

    2. 订阅者

    # coding:utf8
    
    import pika
    import sys
    
    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
    channel = connection.channel()
    
    channel.exchange_declare(exchange='direct_logs',
                             exchange_type='direct')
    
    result = channel.queue_declare(exclusive=True)
    queue_name = result.method.queue
    
    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/myvic/p/9685401.html
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