Log4j.properties

log4j.rootLogger = WARN, c1
###向控制台输出, c1 指的是上面的变量, 表示输出方式###
log4j.appender.c1 = org.apache.log4j.ConsoleAppender
log4j.appender.c1.layout = org.apache.log4j.PatternLayout
log4j.appender.c1.layout.ConversionPattern = %d{yyyy-MM-dd HH:mm:ss} [%p] %m [%t] %c [%l]%n

###向指定文件中输出###
# log4j.appender.f1.File = /WEB-INF/logs/file.log
# log4j.appender.f1 = org.apache.log4j.DailyRollingFileAppender
# log4j.appender.f1.layout = org.apache.log4j.PatternLayout
# log4j.appender.f1.layout.ConversionPattern = %d{yyyy-MM-dd HH:mm:ss} [%p] %m [%t] %c [%l]%n