Log4j |更新Appender的日志级别 | 更新Appender的日志级别

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问题描述

我的log4j.properties文件-

My log4j.properties file -

log4j.rootLogger=INFO, stdout

# =============== console output appender =====================
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%d{HH:mm:ss}] %5p: [%c{1}] %m%n

# =================== common logging =========================
# The log level for all classes that are not configured below.
log4j.logger.petascope=INFO

log4j.logger.petascope.wcps=DEBUG
log4j.logger.petascope.wcst=DEBUG
log4j.logger.petascope.wcs=DEBUG
log4j.logger.petascope.wcs2=TRACE

我想在stdout上甚至显示DEBUG和TRACE消息，所以我更改了以下行

I want to display even DEBUG and TRACE messages on stdout, so I changed the following line

   log4j.rootLogger=TRACE, stdout

但是当我在Tomcat控制台上查看日志回显时，我看不到任何变化，我仍然只看到INFO，WARN ...消息.

But I don't see any changes when I view the logs echoes on Tomcat Console, I still see only INFO, WARN ... messages.

推荐答案

好吧，即使您将root logger设为TRACE，您的log4j.logger.petascope(指向INFO)也将覆盖petascope.*包的默认root logger的TRACE. ，这就是您看不到任何调试和跟踪的原因.

Well, even if you have your root logger as TRACE, your log4j.logger.petascope (pointing to INFO) will override the default root logger's TRACE for petascope.* packages, which is the reason you are not seeing any DEBUG and TRACE.

为简单起见，请尝试以下操作...将根记录器设置为跟踪:-

To keep things simple, try this... set the root logger to trace:-

log4j.rootLogger=TRACE, stdout

然后，注释掉以下几行:-

Then, comment out the following lines:-

#log4j.logger.petascope=INFO
#log4j.logger.petascope.wcps=DEBUG
#log4j.logger.petascope.wcst=DEBUG
#log4j.logger.petascope.wcs=DEBUG
#log4j.logger.petascope.wcs2=TRACE

让我知道这是否对您有用.

Let me know if that works for you.

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