具体代码如下所示:
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# -*- 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
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'
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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服务器之家网站的支持!
原文链接:https://blog.csdn.net/hanyuyang19940104/article/details/80431876