Log4Net使用

<configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
  </configSections>
  <log4net debug="false">
    <root>
      <level value="Error" />
      <appender-ref ref="UserInfoLogger" />
    </root>
    <logger name="UserInfoLogger">
      <!--日志的等级，它们由高到底分别为：
OFF > FATAL > ERROR > WARN > INFO > DEBUG  > ALL 
注意：日志记录时只记录当前及更高等级日志。LevelRangeFilter节点存在时以节点为配置为准-->
      <level value="DEBUG" />
      <!--Appender(输出流)名称-->
      <appender-ref ref="UserInfoLogger" />
    </logger>
    <appender name="UserInfoLogger" type="log4net.Appender.RollingFileAppender,log4net">
      <!--日志文件目录-->
      <param name="File" value="UserInfoLogger/" />
      <!--写入方式为追加-->
      <param name="AppendToFile" value="true" />
      <!--日志回滚方式为日期-->
      <param name="RollingStyle" value="Date" />
      <Encoding value="UTF-8" />
      <!--日志文件命名方式-->
      <param name="DatePattern" value="&quot;Logs_&quot;yyyyMMddHH&quot;.txt&quot;" />
      <!--日志名称-->
      <param name="StaticLogFileName" value="false" />
      <!--最多记录日志文件数-->
      <param name="MaxSizeRollBackups" value="10" />
      <maxSizeRollBackups value="10" />
      <maximumFileSize value="5MB" />
      <lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
      <layout type="log4net.Layout.PatternLayout,log4net">
        <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
      </layout>
      <!--日志级别限制-->
      <filter type="log4net.Filter.LevelRangeFilter">
        <param name="LevelMin" value="DEBUG" />
        <param name="LevelMax" value="WARN" />
      </filter>
    </appender>
  </log4net>

public class Log4NetHelper
    {
        private static log4net.ILog log = log4net.LogManager.GetLogger("UserInfoLogger");

        public static void WriteLogDebug(string message)
        {
            //启用Debug
            if (log.IsDebugEnabled)
            {
                log.Debug($"{DateTime.Now}:Debug:{message}");
            }

            if (log.IsErrorEnabled)
            {
                log.Error($"{DateTime.Now}:Error:{message}");
            }

            if (log.IsFatalEnabled)
            {
                log.Fatal($"{DateTime.Now}:Fatal:{message}");
            }

            if (log.IsInfoEnabled)
            {
                log.Info($"{DateTime.Now}:Info:{message}");
            }


        }
    }