关于ZeroMQ 三种模式python3实现方式
ZeroMQ是一个消息队列网络库,实现网络常用技术封装。在C/S中实现了三种模式,这段时间用python简单实现了一下,感觉python虽然灵活。但是数据处理不如C++自由灵活。
Request-Reply模式:
客户端在请求后,服务端必须回响应
server:
# -*-coding:utf-8 -*- import zmq context = zmq.Context() socket = context.socket(zmq.REP) socket.bind("tcp://*:5555") while True: message = socket.recv() print (message) socket.send("server response!".encode('utf-8'))
clinet:
# -*-coding:utf-8 -*- import zmq import sys context = zmq.Context() socket = context.socket(zmq.REQ) socket.connect("tcp://localhost:5555") while(True): data = input("input your data:") if data == 'q': sys.exit() print(data) socket.send(data.encode('utf-8')) response = socket.recv(); print (response)
Publish-Subscribe模式:
广播所有client,没有队列缓存,断开连接数据将永远丢失。client可以进行数据过滤。
server:
# -*-coding:utf-8 -*- import zmq context = zmq.Context() socket = context.socket(zmq.PUB) socket.bind("tcp://127.0.0.1:5000") while True: data = input('input your data:') socket.send(data.encode('utf-8'))
clinet:
# -*-coding:utf-8 -*- import time import zmq context = zmq.Context() socket = context.socket(zmq.SUB) socket.connect("tcp://127.0.0.1:5000") socket.setsockopt(zmq.SUBSCRIBE, ''.encode('utf-8')) while True: print(socket.recv())
Parallel Pipeline模式:
由三部分组成,push进行数据推送,work进行数据缓存,pull进行数据竞争获取处理。区别于Publish-Subscribe存在一个数据缓存和处理负载。
当连接被断开,数据不会丢失,重连后数据继续发送到对端
server:
# -*-coding:utf-8 -*- import zmq context = zmq.Context() recive = context.socket(zmq.PULL) recive.connect('tcp://127.0.0.1:5558') while True: data = recive.recv() print(data)
work:
# -*-coding:utf-8 -*- import zmq context = zmq.Context() recive = context.socket(zmq.PULL) recive.connect('tcp://127.0.0.1:5557') sender = context.socket(zmq.PUSH) sender.connect('tcp://127.0.0.1:5558') while True: data = recive.recv() print(data) sender.send(data)
clinet:
# -*-coding:utf-8 -*- import zmq import time context = zmq.Context() socket = context.socket(zmq.PUSH) socket.bind('tcp://*:5557') while True: data = input('input your data:') print(data) socket.send(data.encode('utf-8'))
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