log4j将日志输出到控制台，文件，邮件

 #将日志写到文件
 log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
 log4j.appender.file.File=e\:\\log\\zmcc.log
 log4j.appender.file.DatePattern=yyyy-MM-dd-HH-mm'.log'
 log4j.appender.file.layout=org.apache.log4j.PatternLayout
 log4j.appender.file.threshold=error
 log4j.appender.file.layout.ConversionPattern=[%d] [%t] (%F:%L) %-5p %c - %m%n
 log4j.appender.file.encoding=UTF-8

 log4j.appender.console=org.apache.log4j.ConsoleAppender
 log4j.appender.console.layout=org.apache.log4j.PatternLayout
 log4j.appender.console.layout.ConversionPattern=[%d] [%t] (%F:%L) %-5p %c - %m%n
 log4j.appender.console.encoding=UTF-8

 log4j.appender.html=org.apache.log4j.DailyRollingFileAppender
 log4j.appender.html.File=log4j.log
 log4j.appender.html.layout=org.apache.log4j.HTMLLayout

 # 将日志发送到email
 log4j.logger.MailLog=WARN,A5
 log4j.appender.A5=org.apache.log4j.net.SMTPAppender
 log4j.appender.A5.BufferSize=5
 #收件人名称，多个人以逗号隔开
 log4j.appender.A5.To=
 #发件人
 log4j.appender.A5.From=
 #登录名
 log4j.appender.A5.SMTPUsername=
 #邮件密码
 log4j.appender.A5.SMTPPassword=
 log4j.appender.A5.Subject=ErrorLog
 log4j.appender.A5.Encoding=UTF-8
 log4j.appender.A5.SMTPHost=smtp.exmail.qq.com
 log4j.appender.MAIL.Threshold=ERROR
 # 缓存文件大小，日志达到250K时发送Email
 log4j.appender.MAIL.BufferSize=250
 log4j.appender.A5.layout=org.apache.log4j.PatternLayout
 log4j.appender.A5.layout.ConversionPattern=%-4r %-5p [%t] %37c %3x - %m%n

 log4j.rootLogger=error,console,A5
 log4j.logger.com.lzb=debug
 log4j.logger.com.ibatis=DEBUG,info 

发送邮件需要一如两个包:mail.jar,activation.jar

邮件包下载地址：http://pan.baidu.com/s/1c0nWuxa

参考:http://www.iteye.com/topic/378077