web中c#纯网站中引用log4net模块，不记录日志

如题，解决如下：

1、log4net.config配置如下：

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
  </configSections>
  <appSettings>
  </appSettings>

  <log4net>
    <root>
      <level value="ALL"/>
      <appender-ref ref="InfoAppender"/>
      <appender-ref ref="ErrorAppender" />
    </root>
    <logger name="logerror">
      <level value="ALL"/>
      <level value="ERROR" />
      <appender-ref ref="ErrorAppender" />
    </logger>
    <logger name="loginfo">
      <level value="ALL"/>
      <level value="INFO" />
      <appender-ref ref="InfoAppender" />
    </logger>
    <appender name="ErrorAppender" type="log4net.Appender.RollingFileAppender,log4net">
      <!--日志路径-->
      <param name="File" value="Log\\" />
      <!--是否是向文件中追加日志-->
      <param name="AppendToFile" value="true" />
      <!--log保留天数-->
      <param name="MaxSizeRollBackups" value="100" />
      <param name="MaxFileSize" value="10240" />
      <!--日志文件名是否是固定不变的-->
      <param name="StaticLogFileName" value="false" />
       <!--日志文件名格式为:2008-08-31.log-->
      <param name="DatePattern" value="yyyyMMdd'.log'" />
      <!--日志根据日期滚动-->
      <param name="RollingStyle" value="Date" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline"/>
      </layout>
    </appender>
    <appender name="InfoAppender" type="log4net.Appender.RollingFileAppender,log4net">
      <param name="File" value="Log\\" />
      <param name="AppendToFile" value="true" />
      <param name="MaxFileSize" value="10240" />
      <param name="MaxSizeRollBackups" value="100" />
      <param name="StaticLogFileName" value="false" />
      <param name="DatePattern" value="yyyyMMdd'.log'" />
      <param name="RollingStyle" value="Date" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline"/>
      </layout>
    </appender> 
  </log4net>
  <startup>
       <supportedRuntime version="v2.0.50727"/>    
  </startup>
</configuration>

2、在网站web.config中加入一句话，位置如下：

<configuration>

<configSections>

<section name="log4net"

type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />

</configSections>

</configuration>

3、引用类文件中加入[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", ConfigFileExtension = "log4net", Watch = true)]