.Net配置log4net

在项目的AssemblyInfo.cs文件中设置

[assembly: log4net.Config.DOMConfiguratorAttribute(Watch=true)]

添加并编辑项目配置文件（默认为App.config），内容如下：

<?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.ConsoleAppender" >

<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 ref="stdout" />

<appender-ref ref="file" />

</root>

<logger name="*">

<level value="ALL" />

<appender-ref ref="stdout" />

<appender-ref ref="file" />

</logger>

</log4net>

</configuration>

程序代码中使用如下语句

...

using log4net;

using log4net.Config;

...

private static ILog log = LogManager.GetLogger(typeof(TestClass));

...

log.Info("This is a test!");