CODEWITHSUNDEEP
c#visual-studio-2010log4net
dearn44
dearn44

Reputation: 3422

No output coming from log4net

I am trying to use log4net by following a few tutorials and reading the plethora of posts about people having problems with it, since I can not make it work properly.

I have this part right on top of my .config file

<configSections>
      <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
    </configSections>
  <log4net>
    <appender name="RollingFile" type="log4net.Appender.RollingFileAppender">
      <file value="log4net.log" />
      <appendToFile value="true" />
      <maximumFileSize value="500KB" />
      <maxSizeRollBackups value="2" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date %level %logger - %message%newline" />
      </layout>
    </appender>
    <root>
      <level value="All" />
      <appender-ref ref="RollingFile" />
    </root>
  </log4net>

I added this line on my AssemblyInfo file

[assembly: log4net.Config.XmlConfigurator(ConfigFile = "Web.config", Watch = true)]

And tried using the logger inside mt service like this 

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

or

private static ILog Log = LogManager.GetLogger(typeof(MyService));

No file is ever created though, nor any other indication that something is happening at all.

How can I properly use this logger?

Upvotes: 2

Views: 1772

Answers (1)

Metro Smurf
Metro Smurf

Reputation: 38335

Create a log4net DebugAppender to view the output of log4net in the Visual Studio output window which should give you some indications to the issue.

Add to the app.config:

<appSettings>
  <!-- log4net configuration when running in debug mode. -->    
  <add key="log4net.Internal.Debug" value="true" />   
</appSettings>

Add a new debug appender to the log4net.config:

<appender name="DebugAppender" type="log4net.Appender.DebugAppender">
  <immediateFlush value="true" />
  <layout type="log4net.Layout.SimpleLayout" />
</appender>

And add the new appender to the log4net.config root:

<root>
  <level value="ALL" />
  <appender-ref ref="RollingFile" />
  <appender-ref ref="DebugAppender" />
</root>

Run the application and view the Visual Studio output window to view the internal logging for log4net. If there is no output, then the log4net.config file is never loading.

Upvotes: 5

Related Questions