c# - log4net 彩色控制台不工作

Question

我将 log4net 用于两个不同的日志文件和彩色控制台，这些文件工作正常，但控制台始终为空。

在我的app.config中

  <log4net>
    <root>
      <priority value="ALL" />
      <appender-ref ref="ConsoleOutAppender" />
      <appender-ref ref="PortalLoggerAppender" />
      <appender-ref ref="ApplicationLoggerAppender" />
    </root>

    <appender name="ConsoleOutAppender" type="log4net.Appender.ColoredConsoleAppender">
 <filter type="log4net.Filter.LoggerMatchFilter">
        <loggerToMatch value="ApplicationLogger" />
      </filter>
      <mapping>
        <level value="ERROR" />
        <foreColor value="Red, HighIntensity" />
      </mapping>
      <mapping>
        <level value="WARN" />
        <foreColor value="Yellow, HighIntensity" />
      </mapping>
      <mapping>
        <level value="INFO" />
        <foreColor value="Cyan" />
      </mapping>
      <mapping>
        <level value="DEBUG" />
        <foreColor value="Green" />
      </mapping>
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date{dd/MM HH:mm:ss} [%level] %newline%message%newline" />
      </layout>
    </appender>

    <appender name="PortalLoggerAppender" type="log4net.Appender.RollingFileAppender">
      <file type="log4net.Util.PatternString" value="Results/PortalLog_%property{DateTime}_app.log" />
      <filter type="log4net.Filter.LoggerMatchFilter">
        <loggerToMatch value="PortalLogger" />
      </filter>
      <encoding value="utf-8" />
      <appendToFile value="true" />
      <rollingStyle value="Composite" />
      <maxSizeRollBackups value="-1" />
      <maximumFileSize value="20MB" />
      <countDirection value="1" />
      <datePattern value="yyyyMMdd" />
      <staticLogFileName value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date{dd/MM HH:mm:ss} [%level] %newline%message%newline" />
      </layout>
    </appender>

    <appender name="ApplicationLoggerAppender" type="log4net.Appender.RollingFileAppender">
      <file type="log4net.Util.PatternString" value="Results/ApplicationLog_%property{DateTime}_app.log" />
      <filter type="log4net.Filter.LoggerMatchFilter">
        <loggerToMatch value="ApplicationLogger" />
      </filter>
      <encoding value="utf-8" />
      <appendToFile value="true" />
      <rollingStyle value="Composite" />
      <maxSizeRollBackups value="-1" />
      <maximumFileSize value="20MB" />
      <countDirection value="1" />
      <datePattern value="yyyyMMdd" />
      <staticLogFileName value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date{dd/MM HH:mm:ss} [%level] %newline%message%newline" />
      </layout>
    </appender>

    <logger name="PortalLogger" additivity="false">
      <level value="ALL"/>
      <appender-ref ref="PortalLoggerAppender"/>
    </logger>

    <logger name="ApplicationLogger" additivity="false">
      <level value="ALL"/>
      <appender-ref ref="ApplicationLoggerAppender"/>
    </logger>


    </log4net>

知道为什么 log4net 没有打印到控制台吗？我希望应用程序记录器也将写入控制台中。提前谢谢您。

Answer 1

您已将 additivity 专门设置为 false，这 as per the docs意味着:

the appenders found in the ancestors of this logger are not used

这意味着在顶部 root 中配置的内容将被忽略。删除 additivity 或将其设置为 true(默认值)，或者也将控制台附加程序显式添加到此记录器。