在 Log4j2配置中，“ status”是什么意思？

我刚刚完成了 log4j2.xml 配置文件的调整，发现了一些我不太理解的东西？

几乎在所有的例子中: Http://logging.apache.org/log4j/2.x/manual/configuration.html Apache 的人员为配置添加了状态。

例如，这里是第一个:

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN"> <!--status="WARN" - what is this???-->
 

<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
</Console>
</Appenders>


<Loggers>
<Root level="error">
<AppenderRef ref="Console"/>
</Root>
</Loggers>


</Configuration>

41657

小开

最佳答案

The status logger is used internally by log4j2 components. Setting status="debug" (or "trace") in the configuration will cause this internal logging to be output to the command line.

It will print debug information about which log4j2 plugin components are loaded (all configuration elements map to log4j2 plugins), and more details like for example what appenders and loggers were found, what parameters they have and how they are combined.

This is useful for troubleshooting configuration issues.

From Log4j 2.9, you can use system property log4j2.debug (no value required) to turn on internal Log4j2 status logging even before the configuration file is loaded. Prior to version 2.9, the same can be achieved with system property -Dorg.apache.logging.log4j.simplelog.StatusLogger.level=TRACE.