# ???????
log4j.appender.Console=org.apache.log4j.ConsoleAppender
# ?????????,???????
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
# ?????????
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
# ?????????????,??????????,??????????appender?Console?A????
log4j.rootLogger=DEBUG,Console