java - Log4j - 记录内部 Log4j 事件

Question

我在 log4j 设置方面遇到一些问题。

为了解决这些问题，我在 log4j 属性中启用了内部 log4j 日志记录，如下所示:

log4j.debug=true

它正在工作，因为我在控制台中收到这样的日志，这很好:

log4j: Parsing for [root] with value=[DEBUG, console, rollingFile, test].
log4j: enter code here`: Level token is [DEBUG].
log4j: Category root set to DEBUG
log4j: Parsing appender named "console".
log4j: Parsing layout options for "console".

现在我还需要将这些日志保存到文件中。 我添加了 FileAppender，它适用于其他日志，但不保存内部 log4j 日志。

整个 log4j 配置:

#log4j.category.org.hibernate=INFO, hibernate 
log4j.category.org.hibernate.SQL=ERROR, hibernate 
#log4j.category.org.hibernate.type=ALL, hibernate
log4j.additivity.org.hibernate.SQL=false

#Root logger setting
log4j.rootLogger=DEBUG, console, rollingFile, test

#Appenders configurations.
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.conversionPattern=%d{yyyyMMdd HH:mm:ss.SSS} %5p [%t] (%F:%L) - %m%n

log4j.appender.rollingFile=eu.unicorn.pcr.broker.logging.CustodianDailyRollingFileAppender
log4j.appender.rollingFile.File=${catalina.home}/logs/pcr-app.log
log4j.appender.rollingFile.DatePattern='.'yyyy-MM-dd-HH-mm
log4j.appender.rollingFile.MaxNumberOfDays=10
log4j.appender.rollingFile.layout=org.apache.log4j.PatternLayout
log4j.appender.rollingFile.layout.conversionPattern=%d{yyyyMMdd HH:mm:ss.SSS} %5p [%t] (%F:%L) - %m%n

#apender for stress request logging
log4j.appender.stressTest=org.apache.log4j.DailyRollingFileAppender
log4j.appender.stressTest.File=${catalina.home}/logs/requests.log
log4j.appender.stressTest.MaxBackupIndex=10
log4j.appender.stressTest.layout = org.apache.log4j.PatternLayout
log4j.appender.stressTest.layout.conversionPattern=%d{HH:mm:ss.SSS} [%t] - %m%n

log4j.category.stressTestLogger=TRACE, stressTest
log4j.additivty.stressTestLogger=false

log4j.appender.hibernate=org.apache.log4j.RollingFileAppender
log4j.appender.hibernate.File=${catalina.home}/logs/hibernate.log
log4j.appender.hibernate.MaxFileSize=20MB
log4j.appender.hibernate.MaxBackupIndex=10
log4j.appender.hibernate.layout = org.apache.log4j.PatternLayout
log4j.appender.hibernate.layout.conversionPattern=%d{yyyyMMdd HH:mm:ss.SSS} [%t] (%F:%L) - %m%n

# Define the test file appender 
log4j.appender.test=org.apache.log4j.FileAppender
log4j.appender.test.File=${catalina.home}/logs/test.log
log4j.appender.test.ImmediateFlush=true
log4j.appender.test.Threshold=debug
log4j.appender.test.Append=false
log4j.appender.test.layout=org.apache.log4j.PatternLayout
log4j.appender.test.layout.conversionPattern=%m%n

log4j.debug=true

有什么技巧可以设置内部 log4j 日志也保存在文件中吗？如果有任何提示，我会很高兴。

Answer 1

如果您想将日志保存在文件中，则必须使用相应的属性。

# Define the root logger with appender file
log4j.rootLogger = DEBUG, FILE

# Define the file appender
log4j.appender.FILE=org.apache.log4j.FileAppender

# Set the name of the file
log4j.appender.FILE.File=${log}/log.out

# Set the immediate flush to true (default)
log4j.appender.FILE.ImmediateFlush=true

# Set the threshold to debug mode
log4j.appender.FILE.Threshold=debug

# Set the append to false, overwrite
log4j.appender.FILE.Append=false

# Define the layout for file appender
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.conversionPattern=%m%n