python、rabbitmq、pika、消息发送和接收实例

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1. 下载Pika并安装

#mkdir -p /data/soft#cd /data/soft#wget https://pypi.python.org/packages/source/p/pip/pip-1.5.6.tar.gz#md5=01026f87978932060cc86c1dc527903e#python setup.py installTraceback (most recent call last):  File "setup.py", line 6, in <module>    from setuptools import setupImportError: No module named setuptools

如果第1步顺利没有报错可跳过2、3步，直接进入第4步

2. 安装setuptools

#yum install setuptool#cd /data/soft#wget http://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-py2.7.egg#sh setuptools-0.6c11-py2.7.egg

3. 安装pika

#wget https://pypi.python.org/packages/source/p/pika/pika-0.9.14.tar.gz#md5=b99aad4b88961d3c7e4876b8327fc97c#tar zxvf pika-0.9.14.tar.gz#python setup.py install

4. 编写消息发送和接收实例（python版本之生产者/消息者）

最简单的示例，先尝试发送一个message给接受者
1) 生产/消费者

send.py

#!/usr/bin/env python  import pikaimport random  credentials = pika.PlainCredentials('guest', 'geust')#这里可以连接远程IP，请记得打开远程端口  parameters = pika.ConnectionParameters('localhost',5672,'/',credentials)  connection = pika.BlockingConnection(parameters)  channel = connection.channel()    #channel.queue_declare(queue='hello')  number = random.randint(1,1000)body = 'hello world:%s' %numberchannel.basic_publish(exchange='',                        routing_key='hello',                        body=body)  print " [x] Sent %s" %body  connection.close()

receice.py

#!/usr/bin/env python  import pika    credentials = pika.PlainCredentials('guest', 'nova')  parameters = pika.ConnectionParameters('localhost',5672,'/',credentials    )  connection = pika.BlockingConnection(parameters)  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()

5. 测试实例send.py receice.py

# python one.py Traceback (most recent call last):File "one.py", line 3, in <module>import pika, sysFile "build/bdist.linux-i686/egg/pika/__init__.py", line 20, in <module>File "build/bdist.linux-i686/egg/pika/adapters/__init__.py", line 23, in <module>File "build/bdist.linux-i686/egg/pika/adapters/base_connection.py", line 9, in <module>File "/usr/local/lib/python2.7/ssl.py", line 60, in <module>import _ssl             # if we can't import it, let the error propagateImportError: No module named _ssl

解决方法：因为_ssl是python内置模块所以需要重新编译

# yum install openssl -y# wget https://www.python.org/ftp/python/2.7.8/Python-2.7.8.tgz# tar –zxvf Python-2.7.tgz# cd Python-2.7# ./configure# make# make install

6. 再次测试实例

开两个终端分别执行：receice.py send.py

参数资料：http://blog.csdn.net/shatty/article/details/9529463

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