提示错误如下：
log4j:WARN File option not set for appender [file].
log4j:WARN Are you using FileAppender instead of ConsoleAppender?
log4j:ERROR Either File or DatePattern options are not set for appender [file].
12
------解决思路----------------------
没贴配置不好说
要输出到文件么，给你个demo自己对比下吧
log4j.logger.com.santrong.ftp=info, ftp
log4j.appender.ftp=org.apache.log4j.RollingFileAppender
log4j.appender.ftp.MaxFileSize=102400KB
log4j.appender.ftp.MaxBackupIndex=3
log4j.appender.ftp.Threshold = BEBUG
log4j.appender.ftp.Append = TRUE
log4j.appender.ftp.File=${catalina.home}/logs/santrong-ftp.log
log4j.appender.ftp.layout=org.apache.log4j.PatternLayout
log4j.appender.ftp.layout.ConversionPattern=[%d{yyyy-MM-dd HH:mm:ss,SSS} %p] - %m %n