pip3 install pika==1.1.0

官方对于pika有如下介绍#
Since threads aren’t appropriate to every situation, it doesn’t require threads.
Pika core takes care not to forbid them, either.
The same goes for greenlets, callbacks, continuations, and generators.
An instance of Pika’s built-in connection adapters isn’t thread-safe, however.
线程并不适用于每种场景， 因此并不要求使用线程。 但是pika并不禁用线程， 对于

greenlets, callbacks也一样。 一个pika建立的连接并不是线程安全的

因此在多线程中共享一个pika连接不是线程安全的， 当然也有一种使用：

with one exception: you may call the connection method add_callback_threadsafe from
another thread to schedule a callback within an active pika connection.
使用add_callback_threadsafe方法callback 一个pika连接从另外一个线程中

pika提供建立连接方式：#

  pika.adapters.asyncio_connection.AsyncioConnection - 用于python 3 AsyncIO的I/O异步模式pika.BlockingConnection - 同步模式， 简单易用pika.SelectConnection - 没有第三方依赖包的异步模式pika.adapters.tornado_connection.TornadoConnection - 基于Tornado 的异步IO请求模式pika.adapters.twisted_connection.TwistedProtocolConnection - 基于Twisted’的异步IO请求模式

二、普通版rabbitmq#
环境说明
操作系统 ip 主机名 配置 rabbitmq版本

  centos 6.9	192.168.31.7	mq_01	1核2g	3.8.2centos 6.9	192.168.31.216	mq_02	1核2g	3.8.2centos 6.9	192.168.31.214	mq_03	1核2g	3.8.2ubuntu 16.04	192.168.31.229	mq_client	1核2g	N/A 

注意：3台mq服务器，已经开启ssl。开启ssl之后，使用明文传输和使用ssl传输，都是可以的。
生产者#
producer.py

import pikaauth = pika.PlainCredentials('admin', 'admin123')
connection = pika.BlockingConnection(pika.ConnectionParameters('192.168.31.7', '5672', '/', auth))
channel = connection.channel()channel.queue_declare(queue='TEST01')channel.basic_publish(exchange='',routing_key='TEST01',body='Hello World!')
print(" [x] Sent 'Hello World!'")
connection.close()

执行脚本#

python3 produce.py

[x] Sent ‘Hello World!’
消费者#
consumer.py

import pikaauth = pika.PlainCredentials('admin', 'admin123')
connection = pika.BlockingConnection(pika.ConnectionParameters(host='192.168.31.7',port=5672,virtual_host= '/', credentials=auth))
channel = connection.channel()channel.queue_declare(queue='TEST01')def callback(ch, method, properties, body):print(" [x] Received %r" % body)channel.basic_consume(on_message_callback=callback,queue='TEST01',auto_ack=True)

print(’ [*] Waiting for messages. To exit press CTRL+C’)
channel.start_consuming()
执行脚本#

  # python3 consumer.py [*] Waiting for messages. To exit press CTRL+C[x] Received b'Hello World!'

使用CTRL+C 结束脚本
三、SSL版rabbitmq#
客户端采用的是ubuntu 16.04，因为发现centos 7.6编译python 3.7时，导入ssl报错，无法解决。
ubuntu 16.04可以解决导入ssl模块问题。
ubuntu 16.04安装python3-openssl
apt-get install -y python3-openssl

生产者#
下载github示例代码，编辑配置文件

  git clone https://github.com/Nepitwin/RabbitSSLcd RabbitSSL-master/Pythonvi configuration.py

修改黄色部分

import pika
import sslssl_opts = {"ca_certificate": "ca_certificate.pem","client_certificate": "client_certificate.pem","client_key": "client_key.pem","cert_reqs": ssl.CERT_REQUIRED,"ssl_version": ssl.PROTOCOL_TLSv1_2
}rabbit_opts = {"host": "192.168.31.7","port": 5671,"user": "admin","password": "admin123",
}rabbit_queue_opts = {"queue": "python_ssl","message": "Hello SSL World :)"
}context = ssl.create_default_context(cafile=ssl_opts["ca_certificate"])

忽略证书验证

context = ssl._create_unverified_context()context.load_cert_chain(ssl_opts["client_certificate"], ssl_opts["client_key"])
ssl_options = pika.SSLOptions(context, rabbit_opts["host"])
parameters = pika.ConnectionParameters(host=rabbit_opts["host"],port=rabbit_opts["port"],credentials=pika.PlainCredentials(rabbit_opts["user"], rabbit_opts["password"]),ssl_options=ssl_options)
注意：由于证书是不受信任的，因此必须要关闭证书验证，否则会运行报错，提示证书验证失败！
执行脚本#

**

context.load_cert_chain(ssl_opts["client_certificate"], ssl_opts["client_key"]) 一定要添加参数password，否则代码就会一直卡在等你输入密码。终端会提醒你输入密码还好，直接运行代码是不提醒的。

context.load_cert_chain(ssl_opts["client_certificate"], ssl_opts["client_key"], *password='bunnies'*)

**

python3 rabbitssl_send.py

 [x] Sent 'Hello SSL World :)!'

消费者#

执行脚本

python3 rabbitssl_consume.py

 [*] Waiting for messages. To exit press CTRL+C[x] Received b'Hello SSL World :)'

使用CTRL+C 结束脚本