尽管isDebugEnabled为true，但log4j调试消息未在控制台中显示 [英] log4j debug messages not showing in console despite isDebugEnabled being true

问题描述

我在我的项目中使用以下代码通过log4j记录调试消息

I am using the following code within my project to log debug messages with log4j

private static final Logger LOG = Logger.getLogger(MyClass.class)
// ...
if(LOG.isDebugEnabled()) {
    LOG.debug("my log message");
}

我可以通过在编写调试消息的行添加断点来确认我的log4j配置正确，即LOG.isDebugEnabled()确实返回true. 有趣的是，我的调试消息没有显示在我的IDE(IntelliJ)的控制台中，但是将LOG.debug()更改为LOG.info()时，该信息消息将按预期记录.

I can confirm that my log4j configuration is correct by adding a break point at the line where the debug message is written, i.e. LOG.isDebugEnabled() does return true. Interestingly, my debug message does not show up in the console of my IDE (IntelliJ), however when changing LOG.debug() to LOG.info(), the info message is logged as expected.

有什么想法我应该寻找什么，以便找出这里出了什么问题吗?

Any ideas what I should be looking for in order to find out what's going wrong here?

编辑:这是我的log4j.properties文件

here's my log4j.properties file

log4j.appender.Stdout=org.apache.log4j.ConsoleAppender
log4j.appender.Stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.Stdout.layout.conversionPattern=%-5p [%d{dd.MM.yy HH:mm:ss}] %C{1} - %m [thread: %t]\n
log4j.appender.Stdout.threshold=info

log4j.appender.StandaloneFile=org.apache.log4j.RollingFileAppender
log4j.appender.StandaloneFile.File=logs/standalone.log
log4j.appender.StandaloneFile.MaxFileSize=5MB
log4j.appender.StandaloneFile.MaxBackupIndex=20
log4j.appender.StandaloneFile.layout=org.apache.log4j.PatternLayout
log4j.appender.StandaloneFile.layout.ConversionPattern=%-5p [%d{dd.MM.yy HH:mm:ss}] %C{1} - %m [thread: %t]\n
log4j.appender.StandaloneFile.threshold=info

log4j.rootLogger=info, Stdout, StandaloneFile
log4j.logger.com.myPacke.package1=info, Stdout, StandaloneFile

log4j.logger.com.myPacke.package2=DEBUG

推荐答案

log4j.appender.Stdout.threshold=info

应该是:

log4j.appender.Stdout.threshold=debug

您只需将控制台阈值设置为信息，这样就不会获得调试级别的日志.

You just set the console threshold to be info, so you're not getting debug level logs.

请注意，您还应将@RollingFileAppender阈值设置为@Stephen C评论的信息.

Be aware you also set the RollingFileAppender threshold to info as @Stephen C commented.

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