使用python編寫windows服務python
最近測試服務器上常常發生磁盤空間不足,每次手動清除比較麻煩,因此寫個windows服務定時清理下。中間也遇到過幾個坑,一塊兒記錄下來。git
1.python實現windows服務須要藉助第三方庫pywin32。可以使用 pip3 命令下載。windows
代碼以下:服務器
# 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): '''日誌記錄''' 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): #建立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.服務啓動程序會調用SvcDoRun()。手動中止服務的時候,系統率先調用SvcStop(),將self.run置成False,SvcDoRun()跳出循環,服務中止。
3.而後將服務安裝到windows
管理員運行cmd,輸入以下命令:app
#安裝服務 python Clearjob.py install #開啓服務 python Clearjob.py start #中止服務 python Clearjob.py stop #移除服務 python Clearjob.py remove
異常解決方法測試
1.開啓服務的時候會出現報錯「The service did not respond to the start or control request in a timely fashion」,意思是「服務沒有及時響應啓動或控制請求」。this
2.解決方案:將Python36\Lib\site-packages\win32路徑下的pythonservice.exe註冊一下。spa
註冊命令:pythonservice.exe /register日誌
3.這很尷尬。。。缺乏pywintypes36.dll。找下,在Python36\Lib\site-packages\pywin32_system32路徑。code
解決方法:設置到環境變量或者將此dll copy到Python36\Lib\site-packages\win32。
註冊完後執行python Clearjob.py start
服務運行成功!