Log4net for Windows service

Question

This is the first time I use Log4net . It does not show any errors, but is not written to the file. I added the following to my AppConfig file:

 <configuration> <configSections> <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" requirePermission="false"/> </configSections> <log4net> <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender"> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%5level [%thread] (%file:%line) - %message%newline"/> </layout> </appender> <appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender"> <file value="C:\CE\FileControllerLog.txt"/> <layout type="log4net.Layout.PatternLayout"> <!--<param name="ConversionPattern" value="%d [%t] %-5p %c %m%n"/>--> <param name="ConversionPattern" value="%d %m%n"/> </layout> <appendToFile value="true"/> <rollingStyle value="Composite"/> <maxSizeRollBackups value="2"/> <maximumFileSize value="10MB"/> <staticLogFileName value="true"/> </appender> <logger name="FileControllerLog"> <level value="INFO"/> <appender-ref ref="LogFileAppender" /> <appender-ref ref="ConsoleAppender"/> </logger> 

 [assembly: log4net.Config.XmlConfigurator(Watch = true)] //added in assembly info file 

and in code:

 ILog logger = log4net.LogManager.GetLogger("FileControllerLog"); logger.Info("Method starts"); 

He is not registered.

Answer 1

Try the following:

  <log4net> <root> <level value="Error" /> <appender-ref ref="RollingLogFileAppender" /> </root> <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender"> <file value="<FilePath>" /> <appendToFile value="true" /> <rollingStyle value="Composite" /> <maxSizeRollBackups value="14" /> <countDirection value="1" /> <maximumFileSize value="4096KB" /> <lockingModel type="log4net.Appender.FileAppender.MinimalLock" /> <staticLogFileName value="true" /> <PreserveLogFileNameExtension value="true" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%newlineDate[%date] ThreadID[%thread] Level[%-5level] Logger[%logger]] - %message%newline" /> </layout> </appender> </log4net> 

In addition to this, there should be a Log4Net entry in the configuration section, an example:

 <configuration> <configSections> <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,Log4net"/> </configSections> </configuration> 

There is an ILog variable in your Logger class, and in the constructor, configure the logger as follows:

 private ILog log; public Log4NetLogger() { log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType); log4net.Config.XmlConfigurator.Configure(); } 

Answer 2

This may be a user rights issue.

A Windows service often starts with NetworkService credentials that do not have write privileges.

You can add write and midify privileges to the C: \ CE folder or use another Appender (e.g. EventLog Appender)

luck

Answer 3

Make sure that the user who is under his credentials, the service is running, has the rights to write to the place where you are trying to save your logs