python下载ftp文件脚本

最近更新日期：2020/11/6

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Author: bugbeta@foxmail.com
# Date: 2020/8/20

import logging
import time
import datetime
import os

# 日志配置
workdir=os.path.dirname(os.path.realpath(__file__))
logdir=workdir+'/logs'
isExists=os.path.exists(logdir)
if not isExists:
    os.makedirs(logdir)

logfile = logdir+'/' + 'log_'+os.path.basename(__file__).split('.')[0]+".log"
os.chdir(workdir)
logger = logging.getLogger(__name__)
logger.setLevel(level = logging.INFO)
handler = logging.FileHandler(logfile,mode='w')
handler.setLevel(logging.INFO)
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)
logger.addHandler(handler)

def get_day(day_str=time.strftime('%Y-%m-%d'),day_offset=0):
    day_str=day_str.replace('-','').replace('/','')
    v_cur_day=datetime.datetime.strptime(day_str,'%Y%m%d')
    v_day=v_cur_day+datetime.timedelta(days=day_offset)
    return v_day.strftime('%Y-%m-%d')

cur_day=get_day()
pre_day=get_day(day_offset=-1)

logger.info("开始执行...")



from ftplib import FTP


IP="192.168.6.149"
user="ftp"
password="1111"


ftp=FTP()
#ftp.set_debuglevel(2)
ftp.connect(IP)

ftp.login(user,password)

#print ftp.getwelcome()

# 使用主动模式，只需开通访问服务端 20 和 21端口访问
ftp.set_pasv(False)

#upload
#ftp.storbinary('STOR %s' %filename, open(path,'rb',8192))

#download
cur_day=get_day().replace('-','')
pre_day=get_day(day_offset=-1).replace('-','')
# 切换目录
ftp_path=os.path.join('/share/FundFile/',pre_day)

ftp.cwd(ftp_path)
file_list = ftp.nlst()
data = [ name for name in file_list ]

CONST_BUFFER_SIZE＝1024

def download(ftp,filename):
  print(filename)
  with open(filename,'wb+') as fp:
    try:
      ftp.retrbinary("RETR%s"%filename,fp.write,CONST_BUFFER_SIZE)
      fp.flush()
    except :
      return False
    return True



data_path=os.path.join('/tmp',cur_day.replace('-',''))

if not os.path.exists(data_path):
    os.makedirs(data_path)

os.chdir(data_path)

for f in data:
  download(ftp,f)

print(data)
#f = open(data_path)

print('success')

logger.info("结束执行.")

异常问题

报错：ftp.retrbinary  No such file or directory

ftp.retrbinary("RETR%s"%filename,fp.write,CONST_BUFFER_SIZE)

RETR与%s之间不能有空格。这问题好像是只出现在Serve-U 的FTP。linux下做的FTP没这问题。还要再验证一下。