log file not generated in Log4j

Question

I am tried to implements log4j. I have created a sample java program with log4j.

Below is my log4j.properties:

# Root logger option
log4j.rootLogger=DEBUG, stdout, FILE
log = /ciheul/Projects/ais-projects/backend/ais/backend/src/resources

# Redirect log messages to console
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

# Redirect log messages to a log file
log4j.appender.FILE=org.apache.log4j.FileAppender
#outputs to Tomcat home
log4j.appender.FILE.File=${log}/log.out
log4j.appender.FILE.MaxFileSize=5MB
log4j.appender.FILE.MaxBackupIndex=1
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

I am getting the output in the console screen.But the log file is not getting generated. what must i do to generate logging file, thanks

Answer 1

可能的选项之一，您的应用程序无权写入Tomcat文件夹的根目录，您可以更改该文件夹或为您的应用程序授予创建文件的权限