zmq 三種模型的python實現

1.Request-Reply模式：

客戶端在請求后，服務端必須回響應

server：

#!/usr/bin/python
#-*-coding:utf-8-*-
import time
import zmq

context = zmq.Context()
socket = context.socket(zmq.REP)
socket.bind("tcp://*:5555")

while True:
    message = socket.recv()
    print(message)
    #time.sleep(1)
    socket.send("server response!")

 

 

client:

#!/usr/bin/python
#-*-coding:utf-8-*-

import zmq
import sys

context = zmq.Context()
socket = context.socket(zmq.REQ)
socket.connect("tcp://localhost:5555")

while(True):
    data = raw_input("input your data:")
    if data == 'q':
        sys.exit()

    socket.send(data)

    response = socket.recv();
    print(response)

 

 

2.Publish-Subscribe模式:

廣播所有client，沒有隊列緩存，斷開連接數據將永遠丟失。client可以進行數據過濾。

 

 server:

#!/usr/bin/python
#-*-coding:utf-8-*-

import zmq 
context = zmq.Context()  
socket = context.socket(zmq.PUB)  
socket.bind("tcp://127.0.0.1:5000")  
while True:  
    msg = raw_input('input your data:') 
    socket.send(msg)

 

 

client：

#!/usr/bin/python
#-*-coding:utf-8-*-

import time
import zmq  
context = zmq.Context()  
socket = context.socket(zmq.SUB)  
socket.connect("tcp://127.0.0.1:5000")
# 這里設置的是過濾條件，不然無法收到消息 
socket.setsockopt(zmq.SUBSCRIBE,'') 
while True:  
    print  socket.recv()

 

 

3.Parallel Pipeline模式：

由三部分組成，push進行數據推送，work進行數據緩存，pull進行數據競爭獲取處理。區別於Publish-Subscribe存在一個數據緩存和處理負載。

當連接被斷開，數據不會丟失，重連后數據繼續發送到對端。

 

server：

#!/usr/bin/python
#-*-coding:utf-8-*-

import zmq

context = zmq.Context()

socket = context.socket(zmq.PULL)
socket.bind('tcp://*:5558')

while True:
    data = socket.recv()
    print data

 

 

work：

 1 #!/usr/bin/python
 2 #-*-coding:utf-8-*-
 3 
 4 import zmq
 5 
 6 context = zmq.Context()
 7 
 8 recive = context.socket(zmq.PULL)
 9 recive.connect('tcp://127.0.0.1:5557')
10 
11 sender = context.socket(zmq.PUSH)
12 sender.connect('tcp://127.0.0.1:5558')
13 
14 while True:
15     data = recive.recv()
16     sender.send(data)

 

 

client：

#!/usr/bin/python
#-*-coding:utf-8-*-

import zmq
import time

context = zmq.Context()
socket = context.socket(zmq.PUSH)

socket.bind('tcp://*:5557')

while True:
    data = raw_input('input your data:')
    socket.send(data)

 

 

消息結構：
在每個消息buff前均會自帶一個buff長度