我正在为一组共享存储在数据库中的各种相关对象的程序绘制体系结构草图。我希望其中一个程序充当服务,为这些对象上的操作提供更高级别的接口,而其他程序通过该服务访问对象。

我目前的目标是将Python和Django框架作为实现该服务的技术。我很确定我知道如何在Linux中守护Python程序。但是,系统应该支持Windows,这是一个可选的规格项。我几乎没有Windows编程经验,对Windows服务也没有任何经验。

是否有可能运行Python程序作为Windows服务(即自动运行,无需用户登录)?我不一定要实现这一部分,但我需要一个大致的想法,以便决定是否沿着这些路线进行设计。

编辑:谢谢你到目前为止所有的回答,他们是相当全面的。我还想知道一件事:Windows是如何感知我的服务的?我可以使用本机Windows实用程序管理它吗?在/etc/init.d中放置启动/停止脚本的等效内容是什么?


当前回答

一步一步地解释如何使它工作:

1-首先根据上面提到的基本框架创建一个python文件。并将其保存到一个路径,例如:"c:\PythonFiles\AppServerSvc.py"

import win32serviceutil
import win32service
import win32event
import servicemanager
import socket


class AppServerSvc (win32serviceutil.ServiceFramework):
    _svc_name_ = "TestService"
    _svc_display_name_ = "Test Service"


    def __init__(self,args):
        win32serviceutil.ServiceFramework.__init__(self,args)
        self.hWaitStop = win32event.CreateEvent(None,0,0,None)
        socket.setdefaulttimeout(60)

    def SvcStop(self):
        self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
        win32event.SetEvent(self.hWaitStop)

    def SvcDoRun(self):
        servicemanager.LogMsg(servicemanager.EVENTLOG_INFORMATION_TYPE,
                          servicemanager.PYS_SERVICE_STARTED,
                          (self._svc_name_,''))
        self.main()

    def main(self):
        # Your business logic or call to any class should be here
        # this time it creates a text.txt and writes Test Service in a daily manner 
        f = open('C:\\test.txt', 'a')
        rc = None
        while rc != win32event.WAIT_OBJECT_0:
            f.write('Test Service  \n')
            f.flush()
            # block for 24*60*60 seconds and wait for a stop event
            # it is used for a one-day loop
            rc = win32event.WaitForSingleObject(self.hWaitStop, 24 * 60 * 60 * 1000)
        f.write('shut down \n')
        f.close()

if __name__ == '__main__':
    win32serviceutil.HandleCommandLine(AppServerSvc)

在这一步,我们应该注册我们的服务。

以管理员身份运行命令提示符,输入as:

sc create TestService binpath= "C:\Python36\Python.exe C:\ PythonFiles\AppServerSvc.py" DisplayName= "TestService" start= auto

binpath的第一个参数是python.exe的路径

binpath的第二个参数是我们已经创建的python文件的路径

不要忘记在每个“=”号后面加一个空格。

如果一切正常,你应该能看到

[SC] CreateService SUCCESS . [SC

现在你的python服务已经被安装为windows服务了。你可以在服务管理器和注册表中看到它:

HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ \ TestService服务

3-好了。您可以在服务管理器上启动服务。

您可以执行提供此服务框架的每个python文件。

其他回答

使用循环或子线程的完整pywin32示例

在断断续续地研究了几天之后,这里是我希望找到的答案,使用pywin32来保持它的良好和自包含。

这是一个基于循环和一个基于线程的解决方案的完整工作代码。 它可以在python 2和3上运行,尽管我只在2.7和Win7上测试了最新版本。循环应该适用于轮询代码,而tread应该适用于更类似于服务器的代码。它似乎可以很好地与没有标准方法来优雅地关闭的女招待wsgi服务器一起工作。

我还想指出的是,似乎有大量的例子,像这个,几乎是有用的,但在现实中误导,因为他们盲目地剪切和粘贴其他的例子。我可能是错的。但如果你从不等待,为什么要创建一个事件呢?

尽管如此,我仍然觉得我在这里的立场有些动摇,特别是关于线程版本的退出有多干净,但至少我相信这里没有任何误导。

要运行,只需将代码复制到文件中并按照说明操作即可。

更新:

使用一个简单的标志来终止线程。重要的一点是“线程完成”打印。 有关从不合作的服务器线程退出的更详细的示例,请参阅我关于女服务生wsgi服务器的帖子。

# uncomment mainthread() or mainloop() call below
# run without parameters to see HandleCommandLine options
# install service with "install" and remove with "remove"
# run with "debug" to see print statements
# with "start" and "stop" watch for files to appear
# check Windows EventViever for log messages

import socket
import sys
import threading
import time
from random import randint
from os import path

import servicemanager
import win32event
import win32service
import win32serviceutil
# see http://timgolden.me.uk/pywin32-docs/contents.html for details


def dummytask_once(msg='once'):
    fn = path.join(path.dirname(__file__),
                '%s_%s.txt' % (msg, randint(1, 10000)))
    with open(fn, 'w') as fh:
        print(fn)
        fh.write('')


def dummytask_loop():
    global do_run
    while do_run:
        dummytask_once(msg='loop')
        time.sleep(3)


class MyThread(threading.Thread):
    def __init__(self):
        threading.Thread.__init__(self)

    def run(self):
        global do_run
        do_run = True
        print('thread start\n')
        dummytask_loop()
        print('thread done\n')

    def exit(self):
        global do_run
        do_run = False


class SMWinservice(win32serviceutil.ServiceFramework):
    _svc_name_ = 'PyWinSvc'
    _svc_display_name_ = 'Python Windows Service'
    _svc_description_ = 'An example of a windows service in Python'

    @classmethod
    def parse_command_line(cls):
        win32serviceutil.HandleCommandLine(cls)

    def __init__(self, args):
        win32serviceutil.ServiceFramework.__init__(self, args)
        self.stopEvt = win32event.CreateEvent(None, 0, 0, None)  # create generic event
        socket.setdefaulttimeout(60)

    def SvcStop(self):
        servicemanager.LogMsg(servicemanager.EVENTLOG_INFORMATION_TYPE,
                            servicemanager.PYS_SERVICE_STOPPED,
                            (self._svc_name_, ''))
        self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
        win32event.SetEvent(self.stopEvt)  # raise event

    def SvcDoRun(self):
        servicemanager.LogMsg(servicemanager.EVENTLOG_INFORMATION_TYPE,
                            servicemanager.PYS_SERVICE_STARTED,
                            (self._svc_name_, ''))
        # UNCOMMENT ONE OF THESE
        # self.mainthread()
        # self.mainloop()

    # Wait for stopEvt indefinitely after starting thread.
    def mainthread(self):
        print('main start')
        self.server = MyThread()
        self.server.start()
        print('wait for win32event')
        win32event.WaitForSingleObject(self.stopEvt, win32event.INFINITE)
        self.server.exit()
        print('wait for thread')
        self.server.join()
        print('main done')

    # Wait for stopEvt event in loop.
    def mainloop(self):
        print('loop start')
        rc = None
        while rc != win32event.WAIT_OBJECT_0:
            dummytask_once()
            rc = win32event.WaitForSingleObject(self.stopEvt, 3000)
        print('loop done')


if __name__ == '__main__':
    SMWinservice.parse_command_line()

是的,你可以。我使用ActivePython附带的pythoncom库,或者可以使用pywin32 (Python for Windows扩展)安装。

这是一个简单服务的基本框架:

import win32serviceutil
import win32service
import win32event
import servicemanager
import socket


class AppServerSvc (win32serviceutil.ServiceFramework):
    _svc_name_ = "TestService"
    _svc_display_name_ = "Test Service"

    def __init__(self,args):
        win32serviceutil.ServiceFramework.__init__(self,args)
        self.hWaitStop = win32event.CreateEvent(None,0,0,None)
        socket.setdefaulttimeout(60)

    def SvcStop(self):
        self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
        win32event.SetEvent(self.hWaitStop)

    def SvcDoRun(self):
        servicemanager.LogMsg(servicemanager.EVENTLOG_INFORMATION_TYPE,
                              servicemanager.PYS_SERVICE_STARTED,
                              (self._svc_name_,''))
        self.main()

    def main(self):
        pass

if __name__ == '__main__':
    win32serviceutil.HandleCommandLine(AppServerSvc)

您的代码将在main()方法中运行——通常带有某种无限循环,检查SvcStop方法中设置的标志可能会中断这种循环

这个答案是从StackOverflow上的几个来源抄袭的——上面大部分都是,但我已经忘记了其他的——对不起。它很简单,脚本可以“按原样”运行。对于发布,您测试脚本,然后将其复制到服务器并停止/启动相关的服务。它应该适用于所有脚本语言(Python, Perl, node.js),加上批处理脚本,如GitBash, PowerShell,甚至旧的DOS bat脚本。 pyGlue是位于Windows服务和脚本之间的胶水。

'''
A script to create a Windows Service, which, when started, will run an executable with the specified parameters.
Optionally, you can also specify a startup directory

To use this script you MUST define (in class Service)
1. A name for your service (short - preferably no spaces)
2. A display name for your service (the name visibile in Windows Services)
3. A description for your service (long details visible when you inspect the service in Windows Services)
4. The full path of the executable (usually C:/Python38/python.exe or C:WINDOWS/System32/WindowsPowerShell/v1.0/powershell.exe
5. The script which Python or PowerShell will run(or specify None if your executable is standalone - in which case you don't need pyGlue)
6. The startup directory (or specify None)
7. Any parameters for your script (or for your executable if you have no script)

NOTE: This does not make a portable script.
The associated '_svc_name.exe' in the dist folder will only work if the executable,
(and any optional startup directory) actually exist in those locations on the target system

Usage: 'pyGlue.exe [options] install|update|remove|start [...]|stop|restart [...]|debug [...]'
Options for 'install' and 'update' commands only:
        --username domain\\username : The Username the service is to run under
        --password password : The password for the username
        --startup [manual|auto|disabled|delayed] : How the service starts, default = manual
        --interactive : Allow the service to interact with the desktop.
        --perfmonini file: .ini file to use for registering performance monitor data
        --perfmondll file: .dll file to use when querying the service for performance data, default = perfmondata.dll
Options for 'start' and 'stop' commands only:
        --wait seconds: Wait for the service to actually start or stop.
                If you specify --wait with the 'stop' option, the service and all dependent services will be stopped,
                each waiting the specified period.
'''

# Import all the modules that make life easy
import servicemanager
import socket
import sys
import win32event
import win32service
import win32serviceutil
import win32evtlogutil
import os
from logging import Formatter, Handler
import logging
import subprocess


# Define the win32api class
class Service (win32serviceutil.ServiceFramework):
        # The following variable are edited by the build.sh script
        _svc_name_ = "TestService"
        _svc_display_name_ = "Test Service"
        _svc_description_ = "Test Running Python Scripts as a Service"
        service_exe = 'c:/Python27/python.exe'
        service_script = None
        service_params = []
        service_startDir = None

        # Initialize the service
        def __init__(self, args):
                win32serviceutil.ServiceFramework.__init__(self, args)
                self.hWaitStop = win32event.CreateEvent(None, 0, 0, None)
                self.configure_logging()
                socket.setdefaulttimeout(60)

        # Configure logging to the WINDOWS Event logs
        def configure_logging(self):
                self.formatter = Formatter('%(message)s')
                self.handler = logHandler()
                self.handler.setFormatter(self.formatter)
                self.logger = logging.getLogger()
                self.logger.addHandler(self.handler)
                self.logger.setLevel(logging.INFO)

        # Stop the service
        def SvcStop(self):
                self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
                win32event.SetEvent(self.hWaitStop)

        # Run the service
        def SvcDoRun(self):
                self.main()

        # This is the service
        def main(self):

                # Log that we are starting
                servicemanager.LogMsg(servicemanager.EVENTLOG_INFORMATION_TYPE, servicemanager.PYS_SERVICE_STARTED,
                                                          (self._svc_name_, ''))

                # Fire off the real process that does the real work
                logging.info('%s - about to call Popen() to run %s %s %s', self._svc_name_, self.service_exe, self.service_script, self.service_params)
                self.process = subprocess.Popen([self.service_exe, self.service_script] + self.service_params, shell=False, cwd=self.service_startDir)
                logging.info('%s - started process %d', self._svc_name_, self.process.pid)

                # Wait until WINDOWS kills us - retrigger the wait for stop every 60 seconds
                rc = None
                while rc != win32event.WAIT_OBJECT_0:
                        rc = win32event.WaitForSingleObject(self.hWaitStop, (1 * 60 * 1000))

                # Shut down the real process and exit
                logging.info('%s - is terminating process %d', self._svc_name_, self.process.pid)
                self.process.terminate()
                logging.info('%s - is exiting', self._svc_name_)


class logHandler(Handler):
        '''
Emit a log record to the WINDOWS Event log
        '''

        def emit(self, record):
                servicemanager.LogInfoMsg(record.getMessage())


# The main code
if __name__ == '__main__':
        '''
Create a Windows Service, which, when started, will run an executable with the specified parameters.
        '''

        # Check that configuration contains valid values just in case this service has accidentally
        # been moved to a server where things are in different places
        if not os.path.isfile(Service.service_exe):
                print('Executable file({!s}) does not exist'.format(Service.service_exe), file=sys.stderr)
                sys.exit(0)
        if not os.access(Service.service_exe, os.X_OK):
                print('Executable file({!s}) is not executable'.format(Service.service_exe), file=sys.stderr)
                sys.exit(0)
        # Check that any optional startup directory exists
        if (Service.service_startDir is not None) and (not os.path.isdir(Service.service_startDir)):
                print('Start up directory({!s}) does not exist'.format(Service.service_startDir), file=sys.stderr)
                sys.exit(0)

        if len(sys.argv) == 1:
                servicemanager.Initialize()
                servicemanager.PrepareToHostSingle(Service)
                servicemanager.StartServiceCtrlDispatcher()
        else:
                # install/update/remove/start/stop/restart or debug the service
                # One of those command line options must be specified
                win32serviceutil.HandleCommandLine(Service)

现在有一些编辑,你不希望你所有的服务都叫“pyGlue”。所以有一个脚本(build.sh)来插入比特并创建一个自定义的“pyGlue”和创建一个“。exe”。就是这个“。exe”被安装为Windows服务。安装后,您可以将其设置为自动运行。

#!/bin/sh
# This script build a Windows Service that will install/start/stop/remove a service that runs a script
# That is, executes Python to run a Python script, or PowerShell to run a PowerShell script, etc

if [ $# -lt 6 ]; then
        echo "Usage: build.sh Name Display Description Executable Script StartupDir [Params]..."
        exit 0
fi

name=$1
display=$2
desc=$3
exe=$4
script=$5
startDir=$6
shift; shift; shift; shift; shift; shift
params=
while [ $# -gt 0 ]; do
        if [ "${params}" != "" ]; then
                params="${params}, "
        fi
        params="${params}'$1'"
        shift
done

cat pyGlue.py | sed -e "s/pyGlue/${name}/g" | \
        sed -e "/_svc_name_ =/s?=.*?= '${name}'?" | \
        sed -e "/_svc_display_name_ =/s?=.*?= '${display}'?" | \
        sed -e "/_svc_description_ =/s?=.*?= '${desc}'?" | \
        sed -e "/service_exe =/s?=.*?= '$exe'?" | \
        sed -e "/service_script =/s?=.*?= '$script'?" | \
        sed -e "/service_params =/s?=.*?= [${params}]?" | \
        sed -e "/service_startDir =/s?=.*?= '${startDir}'?" > ${name}.py

cxfreeze ${name}.py --include-modules=win32timezone

安装-复制'.exe'服务器和脚本到指定的文件夹。以管理员身份运行“。exe”,并选择“install”。以管理员身份打开Windows服务,并启动服务。若要升级,只需复制新版本的脚本并停止/启动服务。

现在每个服务器都是不同的——不同的Python安装,不同的文件夹结构。我为每个服务器维护一个文件夹,其中包含pyGlue.py和build.sh的副本。我创建了一个'serverBuild.sh'脚本,用于重建该服务器上的所有服务。

# A script to build all the script based Services on this PC
sh build.sh AutoCode 'AutoCode Medical Documents' 'Autocode Medical Documents to SNOMED_CT and AIHW codes' C:/Python38/python.exe autocode.py C:/Users/russell/Documents/autocoding -S -T

https://www.chrisumbel.com/article/windows_services_in_python

跟踪PySvc.py 更改DLL文件夹

我知道这很旧了,但我一直都困在这上面。对我来说,这个特定的问题是通过复制这个文件pywintypes36.dll解决的

号码

To -> Python36\Lib\site-packages\win32

setx /M PATH "%PATH%;C:\Users\user\AppData\Local\Programs\Python\Python38-32;C:\Users\user\AppData\Local\Programs\Python\Python38-32\Scripts;C:\Users\user\AppData\Local\Programs\Python\Python38-32\Lib\site-packages\pywin32_system32;C:\Users\user\AppData\Local\Programs\Python\Python38-32\Lib\site-packages\win32

将路径更改为python文件夹

cd C:\Users\user\AppData\Local\Programs\Python\ Python38-32

NET START PySvc NET STOP PySvc

最简单的方法是使用本机命令sc.exe:

sc create PythonApp binPath= "C:\Python34\Python.exe --C:\tmp\pythonscript.py"

引用:

https://technet.microsoft.com/en-us/library/cc990289 (v = ws.11) . aspx 当用sc.exe创建服务时,如何传递上下文参数?