1.在本地创建数据库
脚本：
CREATE TABLE `mylog` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`log_datetime` datetime DEFAULT NULL,
`log_thread` varchar(255) DEFAULT NULL,
`log_level` varchar(255) DEFAULT NULL,
`log_logger` varchar(255) DEFAULT NULL,
`log_message` varchar(255) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=127 DEFAULT CHARSET=gb2312;
2.配置文件
<?xml version="1.0"?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
</configSections>
<log4net>
<appender name="AdoNetAppender" type="log4net.Appender.AdoNetAppender">
<bufferSize value="2"/>
<param name="ConnectionType" value="MySql.Data.MySqlClient.MySqlConnection, MySql.Data"/>
<param name="ConnectionString" value="database=test;server=localhost;user id=root;password=root;Connect Timeout=120; character set=utf8;Use Affected Rows=true;"/>
<commandText value="INSERT INTO mylog111(id,log_datetime,log_thread,log_level,log_logger,log_message) VALUES (null,@log_date, @thread, @log_level, @logger, @message)"/>
<parameter>
<parameterName value="@log_date"/>
<dbType value="DateTime"/>
<layout type="log4net.Layout.PatternLayout" value="%d{yyyy-MM-dd HH:mm:ss}"/>
</parameter>
<parameter>
<parameterName value="@thread"/>
<dbType value="String"/>
<layout type="log4net.Layout.PatternLayout" value="%t">
</layout>
</parameter>
<parameter>
<parameterName value="@log_level"/>
<dbType value="String"/>
<layout type="log4net.Layout.PatternLayout" value="%p">
</layout>
</parameter>
<parameter>
<parameterName value="@logger"/>
<dbType value="String"/>
<layout type="log4net.Layout.PatternLayout" value="%c">
</layout>
</parameter>
<parameter>
<parameterName value="@message"/>
<dbType value="String"/>
<layout type="log4net.Layout.PatternLayout" value="%m">
</layout>
</parameter>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="Info" />
<levelMax value="Fatal" />
</filter>
</appender>
<root>
<level value="Debug"/>
<appender-ref ref="AdoNetAppender"/>
</root>
</log4net>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
</startup>
<system.data>
<DbProviderFactories>
<remove invariant="MySql.Data.MySqlClient"/>
<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.3.5.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"/>
</DbProviderFactories>
</system.data>
</configuration>
注意
1.需要MySql.Data.dll的支持
2.有人说appender的名称不能为AdoNetAppender，是错误的，经过测试是可以成功记录日志到数据库的