使用python編寫windows服務(wù)
最近測試服務(wù)器上經(jīng)常發(fā)生磁盤空間不足，每次手動(dòng)清除比較麻煩，所以寫個(gè)windows服務(wù)定時(shí)清理下。中間也遇到過幾個(gè)坑左腔，一起記錄下來。
1.python實(shí)現(xiàn)windows服務(wù)需要借助第三方庫pywin32捅儒∫貉可使用 pip3 命令下載。
代碼如下：
# ZPF
# encoding=utf-8
import win32timezone
from logging.handlers import TimedRotatingFileHandler
import win32serviceutil
import win32service
import win32event
import os
import logging
import inspect
import time
import shutil
class PythonService(win32serviceutil.ServiceFramework):
_svc_name_ = "PythonService" #服務(wù)名
_svc_display_name_ = "Clearjob" #job在windows services上顯示的名字
_svc_description_ = "Clear system files" #job的描述
def __init__(self, args):
win32serviceutil.ServiceFramework.__init__(self, args)
self.hWaitStop = win32event.CreateEvent(None, 0, 0, None)
self.logger = self._getLogger()
self.path = 'D:\\WebSite'
self.T = time.time()
self.run = True
def _getLogger(self):
'''日志記錄'''
logger = logging.getLogger('[PythonService]')
this_file = inspect.getfile(inspect.currentframe())
dirpath = os.path.abspath(os.path.dirname(this_file))
if os.path.isdir('%s\\log'%dirpath): #創(chuàng)建log文件夾
pass
else:
os.mkdir('%s\\log'%dirpath)
dir = '%s\\log' % dirpath
handler = TimedRotatingFileHandler(os.path.join(dir, "Clearjob.log"),when="midnight",interval=1,backupCount=20)
formatter = logging.Formatter('%(asctime)s %(name)-12s %(levelname)-8s %(message)s')
handler.setFormatter(formatter)
logger.addHandler(handler)
logger.setLevel(logging.INFO)
return logger
def SvcDoRun(self):
self.logger.info("service is run....")
try:
while self.run:
self.logger.info('---Begin---')
for path, name, file in os.walk('D:\\Website'):
if path == 'D:\\Website':
for IISname in name:
floder = []
for i in os.listdir(os.path.join(path, IISname)):
if i.isdigit():
floder.append(int(i))
if len(floder) == 0:
pass
elif len(floder) >= 2: # 設(shè)置保留備份
floder.sort()
for x in floder[:(len(floder) - 2)]:
self.logger.info("delete dir: %s" % os.path.join(os.path.join(path, IISname), str(x)))
shutil.rmtree(os.path.join(os.path.join(path, IISname), str(x)))
self.logger.info('---End---')
time.sleep(10)
except Exception as e:
self.logger.info(e)
time.sleep(60)
def SvcStop(self):
self.logger.info("service is stop....")
self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
win32event.SetEvent(self.hWaitStop)
self.run = False
if __name__ == '__main__':
win32serviceutil.HandleCommandLine(PythonService)
2.服務(wù)啟動(dòng)程序會(huì)調(diào)用SvcDoRun()巧还。手動(dòng)停止服務(wù)的時(shí)候鞭莽，系統(tǒng)率先調(diào)用SvcStop()，將self.run置成False麸祷，SvcDoRun()跳出循環(huán)澎怒，服務(wù)停止。
3.然后將服務(wù)安裝到windows
管理員運(yùn)行cmd摇锋，輸入如下命令：
#安裝服務(wù)
python Clearjob.py install
#開啟服務(wù)
python Clearjob.py start
#停止服務(wù)
python Clearjob.py stop
#移除服務(wù)
python Clearjob.py remove
異常解決方法
1.開啟服務(wù)的時(shí)候會(huì)出現(xiàn)報(bào)錯(cuò)“The service did not respond to the start or control request in a timely fashion”丹拯，意思是“服務(wù)沒有及時(shí)響應(yīng)啟動(dòng)或控制請求”。
2.解決方案：將Python36\Lib\site-packages\win32路徑下的pythonservice.exe注冊一下荸恕。
注冊命令：pythonservice.exe /register
3.這很尷尬。死相。融求。缺少pywintypes36.dll。找下算撮，在Python36\Lib\site-packages\pywin32_system32路徑生宛。
解決方法：設(shè)置到環(huán)境變量或者將此dll copy到Python36\Lib\site-packages\win32。
注冊完后執(zhí)行python Clearjob.py start
服務(wù)運(yùn)行成功肮柜！
