本文实例讲述了Python使用ftplib实现简易FTP客户端的方法。分享给大家供大家参考。具体实现方法如下:
#!/usr/bin/python #-*- coding:utf-8 -*- from ftplib import FTP #加载ftp模块 ftp=FTP() #设置变量 ftp.set_debuglevel(2) #打开调试级别2,显示详细信息 ftp.connect(\"IP\",\"port\") #连接的ftp sever和端口 ftp.login(\"user\",\"password\")#连接的用户名,密码 print ftp.getwelcome() #打印出欢迎信息 ftp.cmd(\"xxx/xxx\") #更改远程目录 bufsize=1024 #设置的缓冲区大小 filename=\"filename.txt\" #需要下载的文件 file_handle=open(filename,\"wb\").write #以写模式在本地打开文件 ftp.retrbinaly(\"RETR filename.txt\",file_handle,bufsize) #接收服务器上文件并写入本地文件 ftp.set_debuglevel(0) #关闭调试模式 ftp.quit #退出ftp ftp.dir() #显示目录下文件信息 ftp.mkd(pathname) #新建远程目录 ftp.pwd() #返回当前所在位置 ftp.rmd(dirname) #删除远程目录 ftp.delete(filename) #删除远程文件 ftp.rename(fromname, toname)#将fromname修改名称为toname。 ftp.storbinaly(\"STOR filename.txt\",file_handel,bufsize) #上传目标文件
一个FTP完整实例:
#coding:utf-8 from ctypes import * import os import sys import ftplib class myFtp: ftp = ftplib.FTP() bIsDir = False path = \"\" def __init__(self, host, port=\'21\'): self.ftp.set_debuglevel(2) #打开调试级别2,显示详细信息 #self.ftp.set_pasv(0) #0主动模式 1 #被动模式 self.ftp.connect( host, port ) def Login(self, user, passwd ): self.ftp.login( user, passwd ) print self.ftp.welcome def DownLoadFile( self, LocalFile, RemoteFile ): file_handler = open( LocalFile, \'wb\' ) self.ftp.retrbinary( \"RETR %s\" %( RemoteFile ), file_handler.write ) file_handler.close() return True def UpLoadFile( self, LocalFile, RemoteFile ): if os.path.isfile( LocalFile ) == False: return False file_handler = open( LocalFile, \"rb\" ) self.ftp.storbinary( \'STOR %s\'%RemoteFile, file_handler, 4096 ) file_handler.close() return True def UpLoadFileTree( self, LocalDir, RemoteDir ): if os.path.isdir( LocalDir ) == False: return False LocalNames = os.listdir( LocalDir ) print RemoteDir self.ftp.cwd( RemoteDir ) for Local in LocalNames: src = os.path.join( LocalDir, Local) if os.path.isdir( src ): self.UpLoadFileTree( src, Local ) else: self.UpLoadFile( src, Local ) self.ftp.cwd( \"..\" ) return def DownLoadFileTree( self, LocalDir, RemoteDir ): if os.path.isdir( LocalDir ) == False: os.makedirs( LocalDir ) self.ftp.cwd( RemoteDir ) RemoteNames = self.ftp.nlst() for file in RemoteNames: Local = os.path.join( LocalDir, file ) if self.isDir( file ): self.DownLoadFileTree( Local, file ) else: self.DownLoadFile( Local, file ) self.ftp.cwd( \"..\" ) return def show( self, list ): result = list.lower().split( \" \" ) if self.path in result and \"\" in result: self.bIsDir = True def isDir( self, path ): self.bIsDir = False self.path = path #this ues callback function ,that will change bIsDir value self.ftp.retrlines( \'LIST\', self.show ) return self.bIsDir def close( self ): self.ftp.quit() ftp = myFtp(\'********\') ftp.Login(\'*****\',\'*****\') #ftp.DownLoadFile(\'TEST.TXT\', \'others\\\\runtime.log\')#ok #ftp.UpLoadFile(\'runtime.log\', \'others\\\\runtime.log\')#ok #ftp.DownLoadFileTree(\'bcd\', \'others\\\\abc\')#ok #ftp.UpLoadFileTree(\'aaa\',\"others\\\\\" ) ftp.close() print \"ok!\"
希望本文所述对大家的Python程序设计有所帮助。