# -*- coding: utf-8 -*-
import pika,sys
credentials = pika.PlainCredentials('guest', 'guest')
connection = pika.BlockingConnection(pika.ConnectionParameters('192.168.199.11',5672,'/',credentials))
channel = connection.channel()
channel.exchange_declare(exchange='direct_logs',
                         exchange_type='direct')
result = channel.queue_declare(queue='',exclusive=True)
queue_name = result.method.queue
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:  #循环脚本后的参数
    channel.queue_bind( queue=queue_name,
                        exchange='direct_logs',
                        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(  queue=queue_name,
                        on_message_callback=callback,
                        auto_ack=True)
channel.start_consuming()