Python--备份数据库

# mysqldump -uroot -p123456 -A > nhy123.sql
import os
import datetime


class BakDb(object):
    def __init__(self, ip, username, password, port=3306, path='/tmp/db_bak'):
        self.ip = ip
        self.username = username
        self.password = password
        self.port = port
        self.path = path
        self.path_exist()

    def path_exist(self):
        if not os.path.isdir(self.path):  # 不存在的话就创建！
            os.mkdir(self.path)

    # mysqldump -u%s(username) -p%s(password) -P%s(port) -h%s(host) -A > nhy123.sql

    def bak_db(self):
        filename = str(datetime.date.today()) + '.sql'
        abs_file = os.path.join(self.path, filename)
        command = '''
        mysqldump -u{username} -p{password} -P{port} -h{ip} -A > {filename}
        '''.format(username=self.username,
                   password=self.password,
                   port=self.port,
                   ip=self.ip,
                   filename=abs_file)
        os.system(command)
        print('数据库备份完成！')
db1 = BakDb('192.168.3.1', 'root', '123456')
db1.bak_db()