python编写windows系统服务

1、环境准备

这里我们使用py39-x64版本

安装pywin32，选择对应的python版本，点我去下载

安装psutil模块，用于获取磁盘信息，用于创建日志写入目录

2、测试代码

import win32serviceutil
import win32service
import win32event
import servicemanager
import win32timezone
import os
import sys
import logging
from logging import handlers
import psutil
import time

class WinSvc(win32serviceutil.ServiceFramework):
    _svc_name_ = 'PyWinSve'
    _svc_display_name_ = 'PyWinSveTest'
    _svc_description_ = 'python实现win服务测试,每隔5秒发送一次当前系统时间'

    def __init__(self, args):
        win32serviceutil.ServiceFramework.__init__(self, args)
        self.run=True
        self.StopEvent = win32event.CreateEvent(None, 0, 0, None)
        self.logger = self._getlogger()

    def _getlogger(self):
        logger = logging.getLogger('PyWinSve')
        logger.setLevel(logging.DEBUG)
        # 创建日志目录
        partitions = [part[0] for part in psutil.disk_partitions()]

        for part in partitions:
            logDir = os.path.join(part, self._svc_name_, 'log')
            self.logDir = logDir
            if os.path.isdir(logDir):
                break
            try:
                os.makedirs(logDir)
                break
            except Exception as e:
                print(str(e))
        # 每天创建一个日志文件，保存60个副本
        logFileHandlerSplitTime = handlers.TimedRotatingFileHandler(os.path.join(self.logDir,'log.log'), when='D', interval=1,
                                                                            backupCount=60, encoding=None,
                                                                            delay=False, utc=False)
        logFormat = logging.Formatter('%(asctime)s %(name)-12s %(levelname)-8s %(message)s')
        logFileHandlerSplitTime.setFormatter(logFormat)
        logFileHandlerSplitTime.setLevel(logging.DEBUG)

        logger.addHandler(logFileHandlerSplitTime)

        return logger

    def SvcDoRun(self):
        """
        服务启动后运行得函数，需保证不推出，推出意味着服务停止
        :return:
        """
        self.logger.info('启动PyWinSvc服务...')
        while self.run:
            self.logger.info(time.strftime('%Y-%m-%d %H:%M:%S'))
            time.sleep(30)

    def SvcStop(self):
        """
        当停止服务时系统会调用该函数，但是系统关机时服务器停止不会调用
        :return:
        """
        self.logger.info('停止PyWinSvc服务...')
        self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
        win32event.SetEvent(self.StopEvent)
        self.run = False

# Press the green button in the gutter to run the script.
if __name__ == '__main__':
    if len(sys.argv) == 1:
        try:
            evtsrc_dll = os.path.abspath(servicemanager.__file__)
            servicemanager.PrepareToHostSingle(WinSvc)
            servicemanager.Initialize('WinSvc', evtsrc_dll)
            servicemanager.StartServiceCtrlDispatcher()
        except Exception as e :
            print(e)
    else:
        win32serviceutil.HandleCommandLine(WinSvc)