Log4net 根据日志类别保存到不同的文件，并按照日期生成不同文件名称

<configuration>

    <configSections>

        <!--日志记录-->

        <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />

    </configSections>

    <log4net>

        <root></root>

        <logger name="Logger">

            <level value="ALL" />

            <appender-ref ref="ErrorRollingFileAppender" />

            <appender-ref ref="InfoRollingFileAppender" />

        </logger>

        <!--数据日志-->

        <appender name="InfoRollingFileAppender" type="log4net.Appender.RollingFileAppender">

            <param name="File" value="Log\" />

            <param name="AppendToFile" value="true" />

            <param name="rollingStyle" value="Date" />

            <param name="datePattern" value="yyyy-MM-dd.'Info.txt'" />

            <param name="staticLogFileName" value="false"/>

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

                <param name="ConversionPattern" value="%d [%t] %-5p %c [%x]  - %m%n"/>

            </layout>

            <filter type="log4net.Filter.LevelRangeFilter">

                <param name="LevelMin" value="INFO" />

                <param name="LevelMax" value="INFO" />

            </filter>

        </appender>

        <!--异常日志-->

        <appender name="ErrorRollingFileAppender" type="log4net.Appender.RollingFileAppender">

            <param name="File" value="Log\" />

            <param name="AppendToFile" value="true" />

            <param name="rollingStyle" value="Date" />

            <param name="datePattern" value="yyyy-MM-dd.'Error.txt'" />

            <param name="staticLogFileName" value="false"/>

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

                <param name="ConversionPattern" value="%d [%t] %-5p %c [%x]  - %m%n"/>

            </layout>

            <filter type="log4net.Filter.LevelRangeFilter">

                <param name="LevelMin" value="ERROR" />

                <param name="LevelMax" value="ERROR" />

            </filter>

        </appender>

    </log4net>

</configuration>

代码使用记录器：

private static readonly ILog infoLogger = LogManager.GetLogger("Logger");

XmlConfigurator.Configure();

infoLogger.Info(message);