Python版本 3.6.2

使用的ftp包:pyftpdlib    pip install pyftpdlib就可以下載安裝了

FTP協議下載上傳文件在文件過大的情況下會比HTTP更具有優勢，更為方便的實現斷點上傳和進度監控，下面是官方文檔中的

基本方法

import os from pyftpdlib.authorizers import DummyAuthorizer from pyftpdlib.handlers import FTPHandler from pyftpdlib.servers import FTPServer  def main():   # 實例化用戶授權管理   authorizer = DummyAuthorizer()   authorizer.add_user('user', '12345', 'path', perm='elradfmwMT')#添加用戶 參數:username,password,允許的路徑,權限   authorizer.add_anonymous(os.getcwd())#這里是允許匿名用戶,如果不允許刪掉此行即可    # 實例化FTPHandler   handler = FTPHandler   handler.authorizer = authorizer    # 設定一個客戶端鏈接時的標語   handler.banner = "pyftpdlib based ftpd ready."    #handler.masquerade_address = '151.25.42.11'#指定偽裝ip地址   #handler.passive_ports = range(60000, 65535)#指定允許的端口范圍    address = (ipaddr, 21)#FTP一般使用21,20端口   server = FTPServer(address, handler)#FTP服務器實例    # set a limit for connections   server.max_cons = 256   server.max_cons_per_ip = 5    # 開啟服務器   server.serve_forever()  if __name__ == '__main__':   main() 

開啟ftp服務器后要確定防火墻開啟了21,20端口,并且在客戶端的瀏覽器中設置internet選項高級選項卡中的被動ftp的勾去掉之后才能登陸到ftp服務器

從Windows登錄到服務器:

利用Python從ftp服務器上下載文件

from ftplib import FTP ftp=FTP() ftp.connect('localhost',21)#localhost改成服務器ip地址 ftp.login(user='user',passwd='12345')  file=open('f://ftpdownload/test.txt','wb') ftp.retrbinary("RETR test.txt",file.write,1024)#從服務器上下載文件 1024字節一個塊 ftp.set_debuglevel(0) ftp.close() 

FTP服務器事件回調函數:

class MyHandler(FTPHandler):    def on_connect(self):#鏈接時調用     print "%s:%s connected" % (self.remote_ip, self.remote_port)    def on_disconnect(self):#關閉連接是調用     # do something when client disconnects     pass    def on_login(self, username):#登錄時調用     # do something when user login     pass    def on_logout(self, username):#登出時調用     # do something when user logs out     pass    def on_file_sent(self, file):#文件下載后調用     # do something when a file has been sent     pass    def on_file_received(self, file):#文件上傳后調用     # do something when a file has been received     pass    def on_incomplete_file_sent(self, file):#下載文件時調用     # do something when a file is partially sent     pass    def on_incomplete_file_received(self, file):#上傳文件時調用     # remove partially uploaded files     import os     os.remove(file)