python rabbitmq 队列持久

发布时间:2019-07-14 10:23:24编辑:auto阅读(1450)

    发送端:

    import pika
    
    connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
    channel = connection.channel()
    
    
    channel.queue_declare(queue='hello',durable=True)  ##队列持久化,队列重启后也存在,不保证数据是否存在
    # channel.queue_delete(queue="task_queue")
    # for i in range(100):
    channel.basic_publish(exchange='',
                          routing_key='hello',
                          body="hello world",
                          properties=pika.BasicProperties(delivery_mode=2) ##数据持久化
                          )
    # print("Sent 'hello world!'")
    connection.close()


    接收端:

    import pika
    import time
    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
    channel = connection.channel()
    
    channel.queue_declare(queue='hello',durable=True)
    # channel.queue_bind(queue='hello',exchange='',routing_key='hello')
    def callback(ch, method, properties, body):
        print("aaa")
        # time.sleep(8)
        print(" [x] Received %r" % body)
        ch.basic_ack(delivery_tag=method.delivery_tag)  # 给rabbitmq返回已拿到数据信号。
    
    
    channel.basic_consume(callback,
                          queue='hello',
                          no_ack=False)
    
    print(' [*] Waiting for messages. To exit press CTRL+C')
    channel.start_consuming()


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