[英]log4j - Why is logger.debug not working?
My log4j.xml file has the following config: 我的log4j.xml文件具有以下配置:
<appender name="fileAppender"
class="org.apache.log4j.DailyRollingFileAppender">
<param name="Threshold" value="INFO" />
<!-- Change Log File Root when Environment is Set Up -->
<param name="File" value="${root}/application.log"/>
<param name="DatePattern" value=".yyyy-MM-dd" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{yyyy-MMM-dd HH:mm:ss,SSS} [%t] %c %x%n %-5p %m%n"/>
</layout>
</appender>
<logger name="db.scheduler" additivity="false" >
<level value="all"/>
<appender-ref ref="consoleAppender"/>
<appender-ref ref="fileAppender"/>
</logger>
However. 然而。 when I do logger.debug, it doesn't add anything!
当我做logger.debug时,它没有添加任何东西! logger.info and logger.error work... but not logger.debug!
logger.info和logger.error工作......但不是logger.debug!
<param name="Threshold" value="INFO" />
Your threshold is set to INFO
, that's one level below DEBUG
, so any debug messages won't make it through the filter. 您的阈值设置为
INFO
,比DEBUG
低一级,因此任何调试消息都不会通过过滤器。 See here for the relative levels: 在这里查看相对级别:
Level Description
===== ===========
OFF The highest possible rank and is intended to
turn off logging.
FATAL Severe errors that cause premature termination.
Expect these to be immediately visible on a
status console.
ERROR Other runtime errors or unexpected conditions.
Expect these to be immediately visible on a
status console.
WARN Use of deprecated APIs, poor use of API,
'almost' errors, other runtime situations that
are undesirable or unexpected, but not
necessarily "wrong". Expect these to be
immediately visible on a status console.
INFO Interesting runtime events (startup or
shutdown). Expect these to be immediately
visible on a console, so be conservative
and keep to a minimum.
DEBUG Detailed information on the flow through
the system. Expect these to be written to logs
only.
TRACE Most detailed information. Expect these to be
written to logs only. Since version 1.2.12.
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