Mat*_*ker 1 python windows service logging pywin32
使用 Python 3.7、Windows 10 专业版、Pywin32
我有一个测试脚本,它启动一个服务并在发出不同的命令时将一些基本行推送到日志文件中。代码如下:
import win32serviceutil
import win32service
import win32event
import servicemanager
import socket
import logging
class AppServerSvc(win32serviceutil.ServiceFramework):
_svc_name_ = "TestService"
_svc_display_name_ = "Test Service"
_svc_description_ = "New Test Service"
logging.basicConfig(filename='search_server.log', level=logging.INFO)
logging.info('Class opened')
def __init__(self, args):
logging.basicConfig(filename='search_server.log', level=logging.INFO)
logging.info('Init')
win32serviceutil.ServiceFramework.__init__(self, args)
self.hWaitStop = win32event.CreateEvent(None, 0, 0, None)
socket.setdefaulttimeout(60)
def SvcStop(self):
logging.basicConfig(filename='search_server.log', level=logging.INFO)
logging.info('Stop')
self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
win32event.SetEvent(self.hWaitStop)
def SvcDoRun(self):
logging.basicConfig(filename='search_server.log', level=logging.INFO)
logging.info('Run')
servicemanager.LogMsg(servicemanager.EVENTLOG_INFORMATION_TYPE,
servicemanager.PYS_SERVICE_STARTED,
(self._svc_name_, ''))
self.main()
def main(self):
print("running")
logging.basicConfig(filename='search_server.log', level=logging.INFO)
logging.info('Main')
if __name__ == '__main__':
logging.basicConfig(filename='search_server.log', level=logging.INFO)
logging.info('Calling Handle Command Line')
win32serviceutil.HandleCommandLine(AppServerSvc)
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我已经完成了基本的故障排除,该服务正在安装、启动、重新启动和被删除,没有任何错误。但是,我希望日志文件接收基本输出以显示函数正在被命中,但事实并非如此。
我在管理命令提示符下进行的调用:
C:\PythonScripts\SearchServer>python servicetest.py install
Installing service TestService
Service installed
C:\PythonScripts\SearchServer>python servicetest.py start
Starting service TestService
C:\PythonScripts\SearchServer>python servicetest.py restart
Restarting service TestService
C:\PythonScripts\SearchServer>python servicetest.py remove
Removing service TestService
Service removed
C:\PythonScripts\SearchServer>
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日志文件内容:
INFO:root:Class opened
INFO:root:Calling Handle Command Line
INFO:root:Class opened
INFO:root:Calling Handle Command Line
INFO:root:Class opened
INFO:root:Calling Handle Command Line
INFO:root:Class opened
INFO:root:Calling Handle Command Line
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正如您所看到的,每次发出命令时都会命中该服务,但是我希望内部函数也能被调用。作为服务和 Python 的新手,我想知道我是否遗漏了什么?我假设函数名称是预定义的,不需要我设置委派来访问它们。这不是我在遇到的任何问题中看到的。
我当然假设这些功能应该被击中并且它们正在被击中并且能够创建日志?
感激地收到任何帮助。
代码有几个问题:
if __name__ == '__main__':由于代码的自然流动,类定义将首先在您的代码中调用,甚至在块之前调用。因此,您在类定义中的 logging.basicConfig() 中设置的任何内容都将成为整个脚本的最终版本。它不是此设置的理想场所,因此应移至其他地方(在顶部,最好在课堂外)。完成所有这些更改后,脚本将如下所示:
import win32serviceutil
import win32service
import win32event
import servicemanager
import socket
import logging.handlers
log_file_path = "" # mention full path here
mylogger = logging.getLogger("TestLogger")
mylogger.setLevel(logging.INFO)
handler = logging.handlers.RotatingFileHandler(log_file_path)
mylogger.addHandler(handler)
class AppServerSvc(win32serviceutil.ServiceFramework):
_svc_name_ = "TestService"
_svc_display_name_ = "Test Service"
_svc_description_ = "New Test Service"
mylogger.info('Class opened')
def __init__(self, args):
mylogger.info('Init')
win32serviceutil.ServiceFramework.__init__(self, args)
self.hWaitStop = win32event.CreateEvent(None, 0, 0, None)
socket.setdefaulttimeout(60)
def SvcStop(self):
mylogger.info('Stop')
self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
win32event.SetEvent(self.hWaitStop)
def SvcDoRun(self):
mylogger.info('Run')
servicemanager.LogMsg(servicemanager.EVENTLOG_INFORMATION_TYPE,
servicemanager.PYS_SERVICE_STARTED,
(self._svc_name_, ''))
self.main()
def main(self):
print("running")
mylogger.info('Main')
if __name__ == '__main__':
mylogger.info('Calling Handle Command Line')
win32serviceutil.HandleCommandLine(AppServerSvc)
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输出:
Run Code Online (Sandbox Code Playgroud)Class opened Init Run Main Class opened Calling Handle Command Line
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