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python之tcp自动重连

2024-10-15 07:00:02   215人阅读

操作系统： CentOS 6.9_x64

python语言版本： 2.7.13

问题描述

现有一个tcp客户端程序，需定期从服务器取数据，但由于种种原因（网络不稳定等）需要自动重连。

测试服务器示例代码：

https://github.com/mike-zhang/pyExamples/blob/master/socketRelate/tcpServer1_multithread.py

解决方案

‘‘‘tcp client with reconnectE-Mail : Mike_Zhang@live.com‘‘‘#! /usr/bin/env python#-*- coding:utf-8 -*-import os,sys,timeimport socketdef doConnect(host,port):    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)    try :        sock.connect((host,port))    except :        pass    return sockdef main():    host,port = "127.0.0.1",12345    print host,port    sockLocal = doConnect(host,port)    while True :        try :            msg = str(time.time())            sockLocal.send(msg)            print "send msg ok : ",msg            print "recv data :",sockLocal.recv(1024)        except socket.error :            print "\r\nsocket error,do reconnect "            time.sleep(3)            sockLocal = doConnect(host,port)        except :            print ‘\r\nother error occur ‘            time.sleep(3)        time.sleep(1)if __name__ == "__main__" :    main()

运行效果：

(py27env) [root@local t1]# python tcpClient1_reconnect.py127.0.0.1 12345send msg ok :  1498891374.98recv data : 1498891374.98send msg ok :  1498891375.98recv data : 1498891375.98send msg ok :  1498891376.98recv data :socket error,do reconnectsend msg ok :  1498891381.99recv data : 1498891381.99send msg ok :  1498891382.99recv data : 1498891382.99

讨论

这里只是个简单的示例代码，实现了python的tcp自动重连。

python之tcp自动重连


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