Log4net.config 配置

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <!-- This section contains the log4net configuration settings -->
  <log4net>
    <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
      <!--日志文件路径-->
      <file value="Log/" />
      <!--是否是向文件中追加日志-->
      <appendToFile value="true" />
      <rollingStyle value="Composite" />
      <!--日志文件名是否是固定不变的-->
      <staticLogFileName value="false" />
      <!--日志文件名格式为:20200220.log-->
      <datePattern value="yyyyMMdd'.log'" />
      <!--log保留天数-->
      <maxSizeRollBackups value="10" />
      <!--最大文件大小-->
      <maximumFileSize value="20MB" />
      <!--信息日志布局-->
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date  [%thread]  %-5level  %message%newline" />
      </layout>
    </appender>

    <!-- Setup the root category, add the appenders and set the default level -->
    <root>
      <level value="ALL" />
      <appender-ref ref="RollingLogFileAppender" />
    </root>

  </log4net>
</configuration>