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
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'''
tcp client with reconnect
E-Mail : Mike_Zhang@live.com
'''
#! /usr/bin/env python
#-*- coding:utf-8 -*-
import os,sys,time
import socket
def doConnect(host,port):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try :
sock.connect((host,port))
except :
pass
return sock
def 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()
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运行效果:
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(py27env) [root@local t1]# python tcpClient1_reconnect.py
127.0.0.1 12345
send msg ok : 1498891374.98
recv data : 1498891374.98
send msg ok : 1498891375.98
recv data : 1498891375.98
send msg ok : 1498891376.98
recv data :
socket error,do reconnect
send msg ok : 1498891381.99
recv data : 1498891381.99
send msg ok : 1498891382.99
recv data : 1498891382.99
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讨论
这里只是个简单的示例代码,实现了python的tcp自动重连。
原文链接:http://www.cnblogs.com/MikeZhang/p/pythonTcpReconnect20170701.html