ZeroMQ 三种模式python3实现

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'))