RabbitMQ 发布订阅测试

【测试一】1个producer，1个consumer



分别打开两个命令行窗口进入python执行：

#cmd窗口一
import pika
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
channel = connection.channel()
channel.queue_declare(queue='hello') #通道使用队列：hello

channel.basic_publish(exchange='', routing_key='hello',body='Hello World!')#每次更改body信息多次执行

#cmd窗口二
import pika
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
channel = connection.channel()
channel.queue_declare(queue='hello') #通道使用队列：hello

def callback(ch, method, properties, body):
print("接收信息：%r" % body)

channel.basic_consume(callback,queue='hello',no_ack=True)
channel.start_consuming()

执行结果：



【测试二】1个producer，2个consumer (每个[b]consumer 轮流获取消息)[/b]



分别打开多个命令行窗口进入python执行：

#cmd窗口一
import pika
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
channel = connection.channel()
channel.queue_declare(queue='hello') #通道使用队列：hello

channel.basic_publish(exchange='', routing_key='hello',body='Hello World!')#每次更改body信息多次执行

#cmd窗口二 / cmd窗口三 / cmd窗口四 …………
import pika
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
channel = connection.channel()
channel.queue_declare(queue='hello') #通道使用队列：hello

def callback(ch, method, properties, body):
print("接收信息：%r" % body)

channel.basic_qos(prefetch_count=1) #比测试一多此命令
channel.basic_consume(callback,queue='hello',no_ack=True)
channel.start_consuming()

执行结果：



【测试三】1个producer，1个exchange，2个队列，2个consumer (每个队列信息相同)



#cmd窗口一
import pika
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
channel = connection.channel()
channel.exchange_declare(exchange='logs',type='fanout')
channel.basic_publish(exchange='logs', routing_key='',body='Hello World!')

#cmd窗口二 / cmd窗口三 / cmd窗口四 …………
import pika
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
channel = connection.channel()
channel.exchange_declare(exchange='logs',type='fanout')
result = channel.queue_declare(exclusive=True)
queue_name = result.method.queue
channel.queue_bind(exchange='logs',queue=queue_name)

def callback(ch, method, properties, body):
print("接收信息：%r" % body)

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

执行结果：



参考：http://www.rabbitmq.com/tutorials/tutorial-one-python.html