Log4Net in .NetCore simple example

This is a simple example of using Log4net in .net core console app.

Create a new console app

dotnet new console

Add log4net

dotnet add package log4net

Replace Progam.cs with this

using System.Reflection;
using log4net;
using log4net.Config;

var log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
var logrepo = LogManager.GetRepository(Assembly.GetEntryAssembly());
XmlConfigurator.Configure(logrepo, new FileInfo("log4net.config"));

log.Info("this is INFO");

Create a new file log4net.config and add this

<log4net>

    <root>

        <appender-ref ref="ConsoleAppender"/>

    </root>

    <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">

        <layout type="log4net.Layout.PatternLayout">

            <conversionPattern value="%d [%t] %-5p %logger - %m%n" />

        </layout>

    </appender>

</log4net>

Now run the program and you should see the output

C:\Temp\log4net\console>dotnet run
2022-03-25 13:22:55,601 [1] INFO  Program - this is INFO

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