Simple and quick learning to configure log4net

Use log4net-1.2.0-beta8

1> set it in the assemblyinfo. CS file of the project... If you forget this step, you will not be able to monitor the log file.

[Assembly: log4net. config. domconfiguratorattribute (watch = true)]
Or
[Assembly: log4net. config. xmlconfigurator (watch = true)]

2> Add and edit the project configuration file (App. config by default). The content is as follows:

Content 1:

<? XML version = "1.0" encoding = "UTF-8"?>

<Configuration>

<Configsections>

<Section name = "log4net" type = "log4net. config. log4netconfigurationsectionhandler, log4net"/>

</Configsections>

<Log4net>

<Appender name = "stdout" type = "log4net. appender. leleappender">

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

<! -- Conversionpattern value = "[% d % L] % N % m % N"/-->

<Param name = "conversionpattern" value = "[% d % L] % m % N"/>

</Layout>

</Appender>

<Appender name = "file" type = "log4net. appender. fileappender">

<Param name = "file" value = "log.txt"/>

<Param name = "appendtofile" value = "true"/>

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

<Param name = "conversionpattern" value = "[% d % L] % m % N"/>

</Layout>

</Appender>

<Root>

<Level value = "all"/>

<Appender-ref = "stdout"/>

<Appender-ref = "file"/>

</Root>

<Logger name = "*">

<Level value = "all"/>

<Appender-ref = "stdout"/>

<Appender-ref = "file"/>

</Logger>

</Log4net>

</Configuration>

Or content 2 :]

<? XML version = "1.0" encoding = "UTF-8"?>
<Configuration>
<Configsections>
<Section name = "log4net" type = "log4net. config. log4netconfigurationsectionhandler, log4net"/>
</Configsections>

<Log4net DEBUG = "false">
<Appender name = "rollinglogfileappender" type = "log4net. appender. rollingfileappender">
<Param name = "file" value = "log/operationlog.txt"/>
<Appendtofile value = "true"/>
<Rollingstyle value = "date"/>
<Datepattern value = "yyyymmdd'.txt '"/>
<Layout type = "log4net. layout. patternlayout">
<Conversionpattern value = "% Date {yyyy-mm-dd hh: mm: SS }%%-5 level % message % newline"/>
</Layout>
</Appender>
<Root>
<Level value = "debug"/>
<Appender-ref = "rollinglogfileappender"/>
</Root>
</Log4net>
</Configuration>

(Content 2 can be directly copied for later use)

Use the following statement in the program code:

...

Using log4net;

Using log4net. config;

...

Private Static ilog log = logmanager. getlogger (typeof (testclass ));

...

Log. Info ("this is a test! ");