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:
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#!/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:
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#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 "<dir>" 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。