rabbitMQ简单配置及OSError: [Errno 9] Bad file descriptor问题
写在前面,rabbitmq因为版本问题,传入的参数的位置可能不同,可以查看源码,一一对应进行传入。
send.py
# encoding: utf-8
# Date: 2019/11/25 20:43
__author__ = 'ryan.liu'
import pika
def test(hash_value):
# 1, 连接RabbitMq服务器
rabbit_username = 'admin'
rabbit_password = 'admin'
credentials = pika.PlainCredentials(rabbit_username, rabbit_password)
connection = pika.BlockingConnection(
pika.ConnectionParameters(host='127.0.0.1', port=5672, credentials=credentials))
# channel是进行消息读写的通道
channel = connection.channel()
# 2,创建名为queue的队列
channel.queue_declare(queue='queue')
# 3,配置basic_pulish
channel.basic_publish(
'',
'queue',
hash_value)
# 4,关闭连接
connection.close()
# return make_response({})
receive.py
# encoding: utf-8
# Date: 2019/11/25 20:43
__author__ = 'ryan.liu'
import pika
rabbit_username = 'admin'
rabbit_password = 'admin'
credentials = pika.PlainCredentials(rabbit_username, rabbit_password)
connection = pika.BlockingConnection(pika.ConnectionParameters(host='127.0.0.1', port=5672, credentials=credentials))
channel = connection.channel()
# 声明队列
channel.queue_declare(queue='queue')
# 3,定义一个回调函数,当获得消息时,Pika库调用这个回调函数来处理消息
def callback(ch, method, properties, body):
print("receive.py: receive message", body)
# 4,从队列接收消息
# channel.basic_consume(
# queue='queue',
# callback,
# no_ack=True)
channel.basic_consume(
"queue",
callback,
auto_ack=True
)
# 5,等待消息
channel.start_consuming()
今天犯了个错,导致mq一直报错,错误提示为:
OSError: [Errno 9] Bad file descriptor
错误代码如下:
rabbit_username = 'admin'
rabbit_password = 'admin'
credentials = pika.PlainCredentials(rabbit_username, rabbit_password)
connection = pika.BlockingConnection(
pika.ConnectionParameters(host='127.0.0.1', port=5672, credentials=credentials))
channel = connection.channel()
channel.queue_declare(queue='queue')
def test(hash_value):
channel.basic_publish(
'',
'queue',
hash_value)
connection.close()
# return make_response({})
这是python基础的作用域的问题。
rabbitmq报错
pika.exceptions.IncompatibleProtocolError: StreamLostError: ('Transport indicated EOF',)
因为我是用docker起的rabbitMQ服务,我把端口映射到8181端口,但事实上docker启动MQ的时候,会自动启动5672端口,所以在配置的时候,port使用默认的即可,而不是8181。