Using the Log4net framework for log output in C #

First, usage

1. Introduction Package: https://www.nuget.org/packages/log4net/

2. Main function

usingSystem;usingSystem.IO;usinglog4net;usinglog4net. Config;namespacelog4netdemo{classProgram {Static voidMain (string[] args) {            varRepository = Logmanager.createrepository ("netcorerepository"); Xmlconfigurator.configure (repository,NewFileInfo ("Log4net.config")); varLog = Logmanager.getlogger ("netcorerepository",typeof(program)); Log. Info ("This is a info."); Log. Error ("This was an error:",NewException ("This is error.")); Log. Fatal ("This is a fatal."); Log. Warn ("This is a warn"); Console.WriteLine ("finish."); }    }}

3. Create a new log4net.config configuration file and set the output to the program directory.

<?XML version= "1.0" encoding= "UTF-8"?><ConfigurationStatus= "On">    <log4net>        <Appendername= "Consoleappender"type= "log4net." Appender.consoleappender ">            <Layouttype= "log4net." Layout.patternlayout "value= "%date [%thread]%-5level%logger-%message%newline" />        </Appender>        <Appendername= "Rollinglogfileappender"type= "log4net." Appender.rollingfileappender ">            <filevalue= "logs/" />            <Appendtofilevalue= "true" />            <Rollingstylevalue= "Composite" />            <Staticlogfilenamevalue= "false" />            <Datepatternvalue= "YyyyMMdd '. Log '" />            <maxsizerollbackupsvalue= "Ten" />            <maximumFileSizevalue= "1MB" />            <Layouttype= "log4net." Layout.patternlayout ">                <Conversionpatternvalue= "%date [%thread]%-5level%logger [%PROPERTY{NDC}]-%message%newline" />            </Layout>        </Appender>        <Root Level= "All">            <Appender-refref= "Consoleappender" />            <Appender-refref= "Rollinglogfileappender" />        </Root>    </log4net></Configuration>

4. Effect:

Using the Log4net framework for log output in C #