Python FTP两个文件夹间的同步实例代码

具体代码如下所示:

# -*- coding: utf-8 -*-

'''''''

ftp自动检测源文件夹的更新,将源文件夹更新的内容拷贝到目标文件夹中

使用树的层序遍历算法,支持深度目录拷贝

'''

import os

from ftplib import FTP

import os,sys,string,datetime,time

import shutil

import socket

class MyUpdateMonitor(object):

def __init__(self, hostaddr, username, password, remotedir_old, remotedir_new, port = 21):

self.hostaddr = hostaddr

self.username = username

self.password = password

self.remotedir_old = remotedir_old

self.remotedir_new = remotedir_new

# self.port = port

self.ftp = FTP()

# 源文件文件队列

self.FolderListOld = []

# 目标文件文件队列

self.FolderListNew = []

def __del__(self):

self.ftp.close()

self.FolderListOld.clear()

self.FolderListNew.clear()

def FtpLogin(self):

ftp = self.ftp

try:

timeout = 300

socket.setdefaulttimeout(timeout)

ftp.set_pasv(True)

print u'开始连接到 %s' %(hostaddr)

ftp.connect(hostaddr)

print u'成功连接到 %s' %(hostaddr)

print u'开始登录到 %s' %(hostaddr)

ftp.login(username, password)

print u'成功登录到 %s' %(hostaddr)

ftp.getwelcome()

except Exception, e:

print 'find exception now:',e

# 使用树的层序遍历来检查文件目录

def LevelOrderFolder(self):

# 新增文件起始位置和终止位置

start = 0

end = 0

try:

# 将根目录放入队列中

self.FolderListOld.append(self.remotedir_old)

self.FolderListNew.append(self.remotedir_new)

while not (0 == len(self.FolderListOld)):

end = start

# 将文件夹下的文件全部压入队列

if os.path.isdir(self.FolderListOld[0]):

files = os.listdir(self.FolderListOld[0])

for file in files:

self.FolderListOld.append(os.path.join(self.FolderListOld[0], file))

# 确定新增文件在队列中的位置

end += len(files)

# 将已经查看的文件夹删除

del self.FolderListOld[0]

# 检查目标文件夹该级目录

if os.path.isdir(self.FolderListNew[0]):

# 将该级目录的文件都列出

files = os.listdir(self.FolderListNew[0])

# 检查源文件该级目录下的文件在目标该级目录下是否有

for file in self.FolderListOld[start:end]:

temp = file.split('\\')

if temp[-1] in files:

# 这里判断文件大小是否一致,不一致拷过去

if os.path.isfile(file) and not os.path.getsize(file) == os.path.getsize(os.path.join(self.FolderListNew[0], temp[-1])):

print 'Find the file(%s) size is changed!\n' % file

# print r'Start delete...\n'

# os.remove(os.path.join(self.FolderListNew[0], temp[-1]))

# print r'delete is over...\n'

print 'Start Copy...\n'

shutil.copyfile(file, os.path.join(self.FolderListNew[0], temp[-1]))

print 'Copy is over...\n'

# # 如果是文件夹存在,但是修改过,没有必要全部拷贝文件夹,可以到文件夹中拷贝单个文件

# if os.path.isfile(file) and not (os.path.getmtime(file) == os.path.getmtime(os.path.join(self.FolderListNew[0], temp[-1]))):

# print 'Find the file(%s) size is changed!\n' % file

# changetime = os.path.getmtime(file) #以毫秒为单位的时间,自1970年开始到现今

# changetime = float(changetime)

# print 'Change Time is', time.strftime('%Y-%m-%d %H:%M:%S', time.gmtime(changetime)), r'\n'

#

# print 'Start Copy...\n'

# shutil.copyfile(file, os.path.join(self.FolderListNew[0], temp[-1]))

# print 'Copy is over...\n'

else:

if os.path.isdir(file):

# 如果是文件夹不存在使用,目录树拷贝

print 'Find the folder(%s) is updated!\n' % file

print 'Start Copy...\n'

shutil.copytree(file, os.path.join(self.FolderListNew[0], temp[-1]))

print 'Copy is over...\n'

else:

# 如果是文件

print 'Find the file(%s) is updated!\n' % file

print 'Start Copy...\n'

shutil.copyfile(file, os.path.join(self.FolderListNew[0], temp[-1]))

print 'Copy is over...\n'

self.FolderListNew.append(os.path.join(self.FolderListNew[0], temp[-1]))

del self.FolderListNew[0]

start = end - 1

except Exception, e:

print 'find exception now:',e

if __name__ == '__main__':

# 配置如下变量

hostaddr = r'10.204.16.28' # ftp地址

username = r' ' # 用户名

password = r' ' # 密码

remotedir_old = r'\\10.204.16.28\Home\TDME\Test\Old\TMUMH_1.6.1055'

remotedir_new = r'\\10.204.16.28\Home\TDME\Test\New\TMUMH_1.6.1055'

monitorfileupdae = MyUpdateMonitor(hostaddr, username, password, remotedir_old, remotedir_new)

monitorfileupdae.FtpLogin()

while True:

print 'Start Check Update...\n'

monitorfileupdae.LevelOrderFolder()

print 'Check Update is Over...\tSleep one hour...'

time.sleep(3600)

print 'hello'

总结

以上所述是小编给大家介绍的Python FTP两个文件夹间的同步实例代码,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对网站的支持!

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