log4j最清晰的日志配置文件，支持文件和控制台

log4j.rootLogger=info, stdout, R

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

Pattern to output the caller's file name and line number.

%t�߳��� %F���� %l����

log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} [ %t ] %5p %l %m%n

log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=D://example.log

log4j.appender.R.MaxFileSize=100KB

Keep one backup file

log4j.appender.R.MaxBackupIndex=1

log4j.appender.R.layout=org.apache.log4j.PatternLayout
#log4j.appender.R.layout.ConversionPattern=%5p [%t] %F:%L %T - %m%n
#log4j.appender.R.layout.ConversionPattern=%d [%t] %5p %c:%s - %m%n

log4j.appender.R.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} [ %t ] %5p %l %m%n