python中RabbitMQ的使用（路由键模糊匹配）

isgood

　　路由键模糊匹配
　　使用正则表达式进行匹配。其中“#”表示所有、全部的意思；“*”只匹配到一个词。
　　匹配规则：
　　路由键：routings = [ 'happy.work',  'happy.life' , 'happy.work.teacher',  'sad.work',  'sad.life', 'sad.work.teacher' ]
　　"#"：匹配所有的路由键
　　"happy.#"：匹配  'happy.work',  'happy.life' , 'happy.work.teacher'
　　"work.#"：无匹配
　　“happy.*”：匹配 'happy.work',  'happy.life'
　　"*.work"：匹配 'happy.work',  'sad.work'
　　"*.work.#"：匹配  'happy.work',  'happy.work.teacher',  'sad.work', 'sad.work.teacher'
　　示例代码：
　　send4.py:



#!/usr/bin/env python
# -*- coding: utf-8 -*-
import pika

hostname = '192.168.1.133'
parameters = pika.ConnectionParameters(hostname)
connection = pika.BlockingConnection(parameters)

# 创建通道
channel = connection.channel()
# 定义交换机，设置类型为topic
channel.exchange_declare(exchange='change_top', type='topic')

# 定义路由键
routings = ['happy.work', 'happy.life', 'sad.work', 'sad.life']

# 将消息依次发送到交换机，并设定路由键
for routing in routings:
     message = '%s message.' % routing
     channel.basic_publish(exchange='change_top', routing_key=routing, body=message)
     print message

connection.close()
　　receive4.py:



#!/usr/bin/env python
# -*- coding: utf-8 -*-
import pika
import sys

hostname = '192.168.1.133'
parameters = pika.ConnectionParameters(hostname)
connection = pika.BlockingConnection(parameters)

# 创建通道
channel = connection.channel()
# 定义交换机，设置类型为topic
channel.exchange_declare(exchange='change_top', type='topic')

# 从命令行获取路由参数，如果没有，则报错退出
routings = sys.argv[1:]
if not routings:
     print >> sys.stderr, "Usage: %s [routing_key]..." % (sys.argv[0],)
     exit()

# 生成临时队列，并绑定到交换机上，设置路由键
result = channel.queue_declare(exclusive=True)
queue_name = result.method.queue
for routing in routings:
     channel.queue_bind(exchange='change_top', queue=queue_name, routing_key=routing)

def callback(ch, method, properties, body):
     print " [x] Received %r" % (body,)

channel.basic_consume(callback, queue=queue_name, no_ack=True)

print '

Waiting for messages. To exit press CTRL+C'
channel.start_consuming()
　　打开四个终端，运行一下命令：
　　发送端：

　　接收端：