python第五十七天------补上笔记

Posted 2020-09-29

direct_client:广播接收

 1 #!/usr/bin/env python
 2 
 3 #_*_coding:utf-8_*_
 4 
 5 import pika,time,sys
 6 
 7 connection = pika.BlockingConnection(pika.ConnectionParameters(
 8                ‘localhost‘))
 9 channel = connection.channel()
10 
11 channel.exchange_declare(exchange=‘direct_logs‘,#定义一个接收的频道
12                          type=‘direct‘)
13 
14 reult=channel.queue_declare(exclusive=True)#随机生成唯一的队列名，会在消息接收后自动删除
15 queuename=reult.method.queue#队列名 自动生成
16 
17 
18 severities = sys.argv[1:]
19 if not severities:
20     sys.stderr.write("Usage: %s [info] [warning] [error]\n" % sys.argv[0])#启动接收的消息级别
21     sys.exit(1)
22 
23 for severity in severities:#循环接收各级别的消息
24     channel.queue_bind(exchange=‘direct_logs‘,
25                        queue=queuename,
26                        routing_key=severity)
27 
28 def callback(ch, method, properties, body):#回调函数
29     print(‘接收消息中…………‘)
30     #time.sleep(5)
31     print(" [x] Received %r" % body.decode())
32     ch.basic_ack(delivery_tag=method.delivery_tag)
33 
34 
35 channel.basic_qos(prefetch_count=1)#同时只处理一个消息
36 channel.basic_consume(callback,#接收到消息调用回调函数 callback
37                       queue=queuename,
38                       #no_ack=True
39                        )
40 
41 print(‘ [*] 接收消息中. To exit press CTRL+C‘)
42 
43 channel.start_consuming()#启动消息接收

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rabbitmq_server_direct 服务端 广播

 1 #!/usr/bin/env python
 2 #{data} {time}
 3 #_*_coding:utf-8_*_
 4 
 5 import pika,sys,time
 6 connection = pika.BlockingConnection(pika.ConnectionParameters(
 7                ‘localhost‘))
 8 channel = connection.channel()#管道
 9 
10 
11 
12 severity = sys.argv[1] if len(sys.argv) > 1 else ‘info‘#启动参数 默认无参数为 info 级别
13 msg=‘‘.join(sys.argv[2:]) or  ‘info:消息默认发送………‘#启动参数 为空，发默认消息
14 for i in range(10):
15     time.sleep(1)
16     channel.basic_publish(exchange=‘direct_logs‘,#绑定频道
17                           routing_key=severity,#默认的消息队列级别
18                           body=msg+str(i),
19                           #properties=pika.BasicProperties(delivery_mode=2)#持久化 广播不能使用
20                            )
21     print(msg,severity)
22 connection.close()
23 #channel.close()

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rabbitmq_server:

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rabbitmq_server_2: 消息持久化

 1 import pika
 2 connection = pika.BlockingConnection(pika.ConnectionParameters(
 3                ‘localhost‘))
 4 channel = connection.channel()#管道
 5 
 6 #声明queue
 7 #channel.queue_declare(queue=‘hello‘)#队列名 hello
 8 channel.queue_declare(queue=‘hello‘,durable=True)#队列名 hello,持久化队列
 9 
10 for i in range(10):
11 
12     channel.basic_publish(exchange=‘‘,
13                           routing_key=‘hello‘,
14                           body=‘Hello World!%s‘%i,
15                           properties=pika.BasicProperties(delivery_mode=2))
16     print(" [x] Sent ‘Hello World!‘",i)
17 connection.close()

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rabbitmq_server_fanout.   fanout 模式发送端

 1 import pika,sys,time
 2 connection = pika.BlockingConnection(pika.ConnectionParameters(
 3                ‘localhost‘))
 4 channel = connection.channel()#管道
 5 
 6 #声明queue 广播模式不用声明队列
 7 #channel.queue_declare(queue=‘hello‘)#队列名 hello
 8 #channel.queue_declare(queue=‘hello‘,durable=True)#队列名 hello,持久化队列
 9 
10 argv=input(‘输入消息‘)
11 msg=‘‘.join(sys.argv[1:]) or  ‘info:消息默认发送………‘
12 for i in range(10):
13     time.sleep(1)
14     channel.basic_publish(exchange=‘logs‘,#绑定频道
15                           #routing_key=‘hello‘,
16                           routing_key=‘‘,
17                           body=msg+str(i),
18                           #properties=pika.BasicProperties(delivery_mode=2)#持久化 广播不能使用
19                            )
20     print(msg,i)
21 #connection.close()

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rabbitmq_client_fanout   fanout 接收端

 1 #!/usr/bin/env python
 2 #{data} {time}
 3 
 4 #_*_coding:utf-8_*_
 5 
 6 import pika,time
 7 
 8 connection = pika.BlockingConnection(pika.ConnectionParameters(
 9                ‘localhost‘))
10 channel = connection.channel()
11 #channel.queue_declare(queue=‘hello2‘)#服务端与客户端的设置需一致，不然会报错
12 #channel.queue_declare(queue=‘hello2‘,durable=True)#队列名 hello,持久化队列
13 channel.exchange_declare(exchange=‘logs‘,#绑定频道
14                          type=‘fanout‘)#接收类型
15 reult=channel.queue_declare(exclusive=True)#随机生成唯一的队列名，会在消息接收后自动删除
16 queuename=reult.method.queue#队列名 自动生成
17 channel.queue_bind(exchange=‘logs‘,#先要绑定频道
18                    queue=queuename
19                    )
20 
21 
22 def callback(ch, method, properties, body):#回调函数
23     print(‘接收消息中…………‘)
24     #time.sleep(5)
25     print(" [x] Received %r" % body.decode())
26     ch.basic_ack(delivery_tag=method.delivery_tag)
27 
28 
29 channel.basic_qos(prefetch_count=1)#同时只处理一个消息
30 channel.basic_consume(callback,#接收到消息调用回调函数 callback
31                       queue=queuename,
32                       #no_ack=True
33                        )
34 
35 print(‘ [*] 接收消息中. To exit press CTRL+C‘)
36 
37 channel.start_consuming()#启动消息接收

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