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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
''' 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() |
运行效果:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
|
(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 |
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