设置Log4Net以每天仅创建4个文件

我希望每天有四个日志文件，文件名中包含日期。 比如：

MYAPP-20190108-4.log
MYAPP-20190108-3.log
MYAPP-20190108-2.log
MYAPP-20190108-1.log
MYAPP-20190107-4.log
MYAPP-20190107-3.log
MYAPP-20190107-2.log
MYAPP-20190107-1.log

我知道我可以利用日期模式，但最终我有24个文件

    <Logging Message2FilePath="C:\Messages">
  <log4net>
    <appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
      <param name="RollingStyle" value="Composite" />
      <param name="MaxSizeRollBackups" value="10" />
      <param name="StaticLogFileName" value="false" />
      <param name="AppendToFile" value="true" />
      <param name="MaximumFileSize" value="10MB" />
      <file type="log4net.Util.PatternString" value="C:\Logs\MYAPP-" />
      <layout type="log4net.Layout.PatternLayout">
        <param name="ConversionPattern" value="%d{dd-MM-yy HH:mm:ss,fff} [%-5p][%3t]%m%n" />
      </layout>
      <lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
      <datePattern value="yyyyMMdd-HH'.log'" />
    </appender>
    <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
      <layout type="log4net.Layout.PatternLayout">
        <param name="ConversionPattern" value="%d{dd-MM-yy HH:mm:ss,fff} [%-5p][%3t]%m%n" />
      </layout>
    </appender>
    <root>
      <level value="ALL" />
      <appender-ref ref="ConsoleAppender" />
      <appender-ref ref="RollingFileAppender" />
    </root>
  </log4net>
</Logging>

---

那可能吗？

谢谢你的指针@ChetanRanpariya。 我必须重写RollingFileAppender，下面是一个解决方案：

class RollingOverDaypartFileAppender : RollingFileAppender
{
    private DateTime nextRolloverDate;

    public RollingOverDaypartFileAppender(){}

    protected override void AdjustFileBeforeAppend()
    {
        if (DateTime.Now.Hour % 6 != 0) return;

        base.AdjustFileBeforeAppend();
    }
}

问题的答案表明了一种解释的方法。您可以根据自己的要求对其进行更改来尝试这种方法。

class RollingOverDaypartFileAppender : RollingFileAppender
{
    private DateTime nextRolloverDate;

    public RollingOverDaypartFileAppender(){}

    protected override void AdjustFileBeforeAppend()
    {
        if (DateTime.Now.Hour % 6 != 0) return;

        base.AdjustFileBeforeAppend();
    }
}