Rabbitmq hello world连接仅在本地主机（python）上工作

Question

下面的代码摘自rabbitmq教程（http://www.rabbitmq.com/tutorials/tutorial-one-python.html）

import pika
import logging

logging.basicConfig()

connection = pika.BlockingConnection(pika.ConnectionParameters(
       host='localhost'))

channel = connection.channel()

channel.queue_declare(queue='hello')

print ' [*] Waiting for messages. To exit press CTRL+C'

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

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

channel.start_consuming()

它可以工作，但如果我用自己的计算机或同一网络中的计算机的ip更改localhost：

connection = pika.BlockingConnection(pika.ConnectionParameters(
       host='192.168.60.126'))

>python rabbitMQReceiver.py
ERROR:pika.adapters.base_connection:Socket Error on fd 316: 10054
Traceback (most recent call last):
  File "rabbitMQReceiver.py", line 7, in <module>
    host='192.168.60.126'))
  File "C:\Python27\lib\site-packages\pika\adapters\base_connection.py", line 61, in __init__
    super(BaseConnection, self).__init__(parameters, on_open_callback)
  File "C:\Python27\lib\site-packages\pika\connection.py", line 513, in __init__
    self._connect()
  File "C:\Python27\lib\site-packages\pika\connection.py", line 804, in _connect
    self._adapter_connect()
  File "C:\Python27\lib\site-packages\pika\adapters\blocking_connection.py", line 146, in _adapter_connect
    self.process_data_events()
  File "C:\Python27\lib\site-packages\pika\adapters\blocking_connection.py", line 88, in process_data_events
    if self._handle_read():
  File "C:\Python27\lib\site-packages\pika\adapters\blocking_connection.py", line 184, in _handle_read
    super(BlockingConnection, self)._handle_read()
  File "C:\Python27\lib\site-packages\pika\adapters\base_connection.py", line 300, in _handle_read
    return self._handle_error(error)
  File "C:\Python27\lib\site-packages\pika\adapters\base_connection.py", line 264, in _handle_error
    self._handle_disconnect()
  File "C:\Python27\lib\site-packages\pika\adapters\blocking_connection.py", line 181, in _handle_disconnect
    self._on_connection_closed(None, True)
  File "C:\Python27\lib\site-packages\pika\adapters\blocking_connection.py", line 235, in _on_connection_closed
    raise exceptions.AMQPConnectionError(*self.closing)
pika.exceptions.AMQPConnectionError: (0, '')

我不知道为什么，我应该在连接中改变一些东西吗？

Answer 1

作为@gas响应的后续。

默认情况下，pika将使用默认的RabbitMQ凭据guest/guest进行连接。如果要使用自己的凭据，则需要提供自己的PlainCredentials对象。

credentials = pika.PlainCredentials(username='my_user', password='password')
connection = \
    pika.BlockingConnection(pika.ConnectionParameters(host='192.168.60.126',
                                                      credentials=credentials))

在服务器上，您需要添加具有适当权限的用户。您可以使用web界面或命令行来完成此操作。更多细节可在@gas提供的链接中获得。

rabbitmqctl add_user my_user password
rabbitmqctl set_permissions -p / my_user ".*" ".*" ".*"

这两个命令将赋予用户my_user对虚拟主机/所需的所有权限。