在log4j.properties里添加encoding , 例如 :
log4j.appender.fuscent=org.apache.log4j.DailyRollingFileAppender
log4j.appender.fuscent.encoding=UTF-8
log4j.appender.fuscent.File=/Users/kane/Work/log/core/fuscent.log
log4j.appender.fuscent.layout=org.apache.log4j.PatternLayout