custom log level in log4net & .net core

.net core console adding log4net

Log4Net will not use the log settings in the appsetting.json file, it needs a log4net.config file 😭

• add package

• add config file

• ensure it is set to copy to output directory

• update config in file as required

• add Log4Net into the logging framework

• get logger via dependancy injection as per standard

Configuring Log4net

reference:
https://stackoverflow.com/questions/10204171/configure-log4net-in-web-application


Add the nuget package:



Stick this line somewhere:

[assembly: log4net.Config.XmlConfigurator(Watch = true)]

(like the AssemblyInfo.cs file, or just cram it at the top of your controller like a madman - but only include it once)

Configure web.config settings:

  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
  </configSections>
  <log4net debug="true">
    <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
      <file value="RollingLog.txt" />
      <appendToFile value="true" />
      <rollingStyle value="Size" />
      <maxSizeRollBackups value="5" />
      <maximumFileSize value="10MB" />
      <staticLogFileName value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%-5p %d %5rms %-22.22c{1} %-18.18M - %m%n" />
      </layout>
    </appender>
    <root>
      <level value="DEBUG" />
      <appender-ref ref="RollingLogFileAppender" />
    </root>
  </log4net>

Get a reference to the logger

private static readonly ILog Log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

Go crazy logging things




Output looks like