1.新建控制台程序。
2.添加Log4Net nuget
3.添加MySql 引用
4.添加配置文件如下：
<?xml version="1.0"?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
</configSections>
<log4net>
<!-- 控制台前台显示日志 -->
<appender name="ColoredConsoleAppender" type="log4net.Appender.ColoredConsoleAppender">
<mapping>
<level value="ERROR" />
<foreColor value="Red, HighIntensity" />
</mapping>
<mapping>
<level value="Info" />
<foreColor value="Green" />
</mapping>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%n%date{HH:mm:ss,fff} [%-5level] %m" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<param name="LevelMin" value="Info" />
<param name="LevelMax" value="Fatal" />
</filter>
</appender>
<!--数据库记录日志-->
<appender name="ADONetAppender" type="log4net.Appender.ADONetAppender">
<bufferSize value="1" />
<param name="ConnectionType" value="MySql.Data.MySqlClient.MySqlConnection, MySql.Data" />
<param name="ConnectionString" value="Server=localhost;port=3306;User ID=root;password=root;database=test;charset=utf8;Allow User Variables=True"/>
<param name="CommandText" value="insert into log4net(log_datetime,log_thread,log_level,log_logger,log_message) values(@log_datetime, @log_thread , @log_level, @log_logger, @log_message)" />
<param name="Parameter">
<param name="ParameterName" value="@log_datetime" />
<param name="DbType" value="DateTime" />
<param name="Layout" type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%d{yyyy'-'MM'-'dd HH':'mm':'ss'.'fff}" />
</param>
</param>
<param name="Parameter">
<param name="ParameterName" value="@log_thread" />
<param name="DbType" value="String" />
<param name="Size" value="255" />
<param name="Layout" type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%t" />
</param>
</param>
<param name="Parameter">
<param name="ParameterName" value="@log_level" />
<param name="DbType" value="String" />
<param name="Size" value="50" />
<param name="Layout" type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%p" />
</param>
</param>
<param name="Parameter">
<param name="ParameterName" value="@log_logger" />
<param name="DbType&q