I created aa file called log4net.config
in my project and added the following configuration:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
</configSections>
<log4net>
<root>
<level value="ALL" />
<appender-ref ref="console" />
<appender-ref ref="RollingFileAppender" />
</root>
<appender name="console" type="log4net.Appender.ConsoleAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %level %logger - %message%newline" />
</layout>
</appender>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<param name="File" value="${LOCALAPPDATA}\MyApp\LogFile.log" />
<param name="AppendToFile" value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="10MB" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%-5level [%d{yyyy-MM-dd hh:mm:ss}] [%thread] (Line:%line) %M: - %m%n" />
</layout>
</appender>
</log4net>
</configuration>
After that, I added the line below to my AssemblyInfo.cs
file:
[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", Watch = true)]
In the application, I have the following static class:
public static class Logger
{
private static readonly ILog log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
public static void LogInfo(string msg)
{
log.Info(msg);
}
public static void LogDebug(string msg)
{
log.Debug(msg);
}
public static void LogWarn(string msg, Exception e)
{
log.Warn(msg, e);
}
public static void LogError(string msg, Exception e)
{
log.Error(msg, e);
}
}
Then I'm trying to log somewhere in the application in another class using Logger.LogDebug("Error logger working.");
However, I can't see any log file being created or written to it. What am I doing wrong?
UPDATE:
I also added the following in my app.config
file but I see nothing at all on my Output console...
<appSettings>
<add key="log4net.Internal.Debug" value="true"/>
</appSettings>
If you have the log4net configuration in a log4net logging configuration file, you do not have to add the configuration of the web.config (configuration tag and sections). Just add the log4net tags:
<log4net>
<root>
<level value="ALL" />
<appender-ref ref="console" />
<appender-ref ref="RollingFileAppender" />
</root>
<appender name="console" type="log4net.Appender.ConsoleAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %level %logger - %message%newline" />
</layout>
</appender>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<param name="File" value="${LOCALAPPDATA}\MyApp\LogFile.log" />
<param name="AppendToFile" value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="10MB" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%-5level [%d{yyyy-MM-dd hh:mm:ss}] [%thread] (Line:%line) %M: - %m%n" />
</layout>
</appender>
</log4net>
Managed to find out the issue thanks to stuartd's comment. My problem was, my full solution had 2 projects. I had only configured one project (which is not the start-up project) for log4net.
My original log4net configuration did not have any mistake. I simply added log4net reference to my start up project and added log4net configuration to that project as well and it started logging.
Many thanks to everyone who tested my config.
I could not reproduce your mistake. Configure log4net in AssemblyInfo works fine. maybe the problem in configuration. let me show you another implementation
private static readonly ILog log = LogManager.GetLogger("myLogger");
private static string configFile = "log4net.config";
static Logger()
{
XmlConfigurator.Configure(new FileInfo(configFile));
}
log4net.config:
<log4net>
<logger name="myLogger">
<level value="ALL" />
<appender-ref ref="console" />
<appender-ref ref="RollingFileAppender" />
</logger>
<appender name="console" type="log4net.Appender.ConsoleAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %level %logger - %message%newline" />
</layout>
</appender>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<param name="File" value="${LOCALAPPDATA}\MyApp\LogFile.log" />
<param name="AppendToFile" value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="10MB" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%-5level [%d{yyyy-MM-dd hh:mm:ss}] [%thread] (Line:%line) %M: - %m%n" />
</layout>
</appender>
</log4net>
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