log4j 配置文件使用原則
# log4j.debug=ture //是否打開log4j的內部日志打印
# 父logger，級別為info，指定控制台輸出器
log4j.rootLogger=info, console
# 配置子logger，目的就是控制一定范圍內的日志輸出，比如這里的子logger是控制cn.server.test包下面的所有類的日志輸出，其父logger就是rootLogger
log4j.logger.cn.server.test=error,E
# 信息是否輸出到父logger
log4j.additivity.cn.server.test=false
# 輸出器配置
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File =G://logs/error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
# (ConsoleAppender：控制台打印)
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
# (DailyRollingFileAppender)
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = G://logs/log.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = DEBUG
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
# (mail)
log4j.appender.mail=org.apache.log4j.net.SMTPAppender
log4j.appender.mail.Threshold=DEBUG
log4j.appender.mail.BufferSize=10
log4j.appender.mail.From = 123@qq.com
log4j.appender.mail.SMTPHost=smtp.qq.com
log4j.appender.mail.Subject=Log4J Message
log4j.appender.mail.SMTPUsername=123
log4j.appender.mail.SMTPPassword=xxx
log4j.appender.mail.To= 456@qq.com
log4j.appender.mail.layout=org.apache.log4j.PatternLayout
log4j.appender.mail.layout.ConversionPattern=[%-5p] %d(%r) --> [%t] %l: %m %x %n