Log4j |更新Appender的日志级别
我的 log4j.properties 文件 -
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
我想在标准输出上显示 DEBUG 和 TRACE 消息，因此我更改了以下行
log4j.rootLogger=TRACE, stdout
但是当我在 Tomcat 控制台上查看日志回显时，我没有看到任何更改，我仍然只看到 INFO, WARN 。 ..消息。
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
I want to display even DEBUG and TRACE messages on stdout, so I changed the following line
log4j.rootLogger=TRACE, stdout
But I don't see any changes when I view the logs echoes on Tomcat Console, I still see only INFO, WARN ... messages.
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好吧，即使您将根记录器设置为 TRACE，您的
log4j.logger.petascope（指向 INFO）也会覆盖 petascope.* 包的默认根记录器 TRACE，这就是您不这样做的原因查看任何调试和跟踪。为了简单起见，尝试这个...将根记录器设置为跟踪：-
然后，注释掉以下几行：-
让我知道这是否适合您。
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.To keep things simple, try this... set the root logger to trace:-
Then, comment out the following lines:-
Let me know if that works for you.
试试这个：（
如另一个 StackOverflow 问题中所述）。
Try this:
(as described in another StackOverflow question).