Python实现备份MySQL数据库的方法示例

本文实例讲述了Python实现备份MySQL数据库的方法。分享给大家供大家参考，具体如下：#!/usr/

本文实例讲述了Python实现备份MySQL数据库的方法。分享给大家供大家参考，具体如下：

#!/usr/bin/env python
# -*- coding:utf-8 -*-
#导入模块
import MySQLdb
import time
import datetime
import os
"""
 Purpose: 备份数据库
 Created: 2015/5/12
 Modified:2015/5/12
 @author: guoyJoe
"""
dbUser='root'
dbPasswd='root'
dbHost='192.168.1.6'
dbCharset = 'utf8'
backupDir = '/u02/backup/mysql'
backupDate = time.strftime("%Y%m%d")
#查出MySQL中所有的数据库名称
sqlStr1 = "show databases like 'db%'"
try:
 connDB= MySQLdb.connect("192.168.1.6","root","root","test" )
 connDB.select_db('test')
 curSql1=connDB.cursor()
 curSql1.execute(sqlStr1)
 allDatabase = curSql1.fetchall()
 print 'The database backup to start! %s' %time.strftime('%Y-%m-%d %H:%M:%S')
 for db in allDatabase:
 dbName = db[0]
 fileName = '%s/%s_%s.sql' %(backupDir,backupDate,dbName)
 print fileName
 if os.path.exists(fileName):
 os.remove(fileName)
 os.system("mysqldump -h%s -u%s -p%s %s --default_character-set=%s > %s/%s_%s.sql" %(dbHost,dbUser,dbPasswd,dbName,dbCharset,backupDir,backupDate,dbName))
 print 'The database backup success! %s' %time.strftime('%Y-%m-%d %H:%M:%S')
#异常
except MySQLdb.Error,err_msg:
 print "MySQL error msg:",err_msg