log4j:WARN No appenders could be found for logger (com.jfinal.core.ActionHandler).

log4j:WARN Please initialize the log4j system properly.

log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

不知道是哪里出了问题，大神帮忙看看。谢谢！