Python rabbitmq中用于多队列的多个使用者
我有两个队列,比如q1和q2,它对应于e1和e2交换,具有绑定键b1和b2。我想并行运行消费函数,比如c1和c2,它们分别听q1和q2。我尝试了以下方法:Python rabbitmq中用于多队列的多个使用者,python,rabbitmq,pika,python-pika,Python,Rabbitmq,Pika,Python Pika,我有两个队列,比如q1和q2,它对应于e1和e2交换,具有绑定键b1和b2。我想并行运行消费函数,比如c1和c2,它们分别听q1和q2。我尝试了以下方法: def c1(): connection = pika.BlockingConnection(pika.ConnectionParameters(host=constants.rmqHostIp)) channel = connection.channel() channel.exchange_declare(exch
def c1():
connection = pika.BlockingConnection(pika.ConnectionParameters(host=constants.rmqHostIp))
channel = connection.channel()
channel.exchange_declare(exchange='e1', durable='true',
type='topic')
result = channel.queue_declare(durable='false', queue='q1')
queue_name = result.method.queue
binding_key = "b1"
channel.queue_bind(exchange='e1',
queue=queue_name,
routing_key=binding_key)
channel.basic_consume(callback,queue=queue_name,no_ack=False)
channel.start_consuming()
def c2():
connection = pika.BlockingConnection(pika.ConnectionParameters(host=constants.rmqHostIp))
channel = connection.channel()
channel.exchange_declare(exchange='e2', durable='true',
type='topic')
result = channel.queue_declare(durable='false', queue='q2')
queue_name = result.method.queue
binding_key = "b2"
channel.queue_bind(exchange=e1,
queue=queue_name,
routing_key=binding_key)
channel.basic_consume(callback,queue=queue_name,no_ack=False)
channel.start_consuming()
if __name__ == '__main__':
c1()
c2()
然而,它只监听c1函数和c2函数,并没有得到执行。如何运行这两个函数?
提前谢谢
编辑:我在两个不同的模块(文件)中有方法c1和c1为了同时运行这两个函数,需要排列一些多线程方法。请看一些python示例 下面是使用Process类修改的代码。它还可以使用线程或从操作系统显式运行线程
import pika
from multiprocessing import Process
def callback():
print 'callback got data'
class c1():
def __init__(self):
self.connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
self.channel = self.connection.channel()
self.channel.exchange_declare(exchange='e1', durable='true', type='topic')
result = self.channel.queue_declare(durable='false', queue='q1')
queue_name = result.method.queue
binding_key = "b1"
self.channel.queue_bind(exchange='e1', queue=queue_name, routing_key=binding_key)
self.channel.basic_consume(callback,queue=queue_name,no_ack=False)
def run(self):
self.channel.start_consuming()
class c2():
def __init__(self):
self.connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
self.channel = self.connection.channel()
self.channel.exchange_declare(exchange='e2', durable='true', type='topic')
result = self.channel.queue_declare(durable='false', queue='q2')
queue_name = result.method.queue
binding_key = "b2"
self.channel.queue_bind(exchange='e1', queue=queue_name, routing_key=binding_key)
self.channel.basic_consume(callback,queue=queue_name,no_ack=False)
def run(self):
self.channel.start_consuming()
if __name__ == '__main__':
subscriber_list = []
subscriber_list.append(c1())
subscriber_list.append(c2())
# execute
process_list = []
for sub in subscriber_list:
process = Process(target=sub.run)
process.start()
process_list.append(process)
# wait for all process to finish
for process in process_list:
process.join()
您应该使用python线程模块或阻塞连接的其他方法。