log4j配置文件使用

log4j 配置文件使用原则

# log4j.debug=ture  //是否打开log4j的内部日志打印  

# 父logger，级别为info，指定控制台输出器
log4j.rootLogger=info, console
  
# 配置子logger，目的就是控制一定范围内的日志输出，比如这里的子logger是控制cn.server.test包下面的所有类的日志输出，其父logger就是rootLogger  
log4j.logger.cn.server.test=error,E 
# 信息是否输出到父logger
log4j.additivity.cn.server.test=false

# 输出器配置
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 =   
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=   
log4j.appender.mail.layout=org.apache.log4j.PatternLayout  
log4j.appender.mail.layout.ConversionPattern=[%-5p] %d(%r) --> [%t] %l: %m %x %n