log4j配置

log4j.properties

log4j.rootCategory=INFO, stdout , D , I , W , E
 
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[testLog] %p [%t] %C.%M(%L) | %m%n

log4j.appender.D=org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File=D:\\TestLogs\\DEBUG.log
log4j.appender.D.Threshold = DEBUG
log4j.appender.D.layout=org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern=%d-[\u65E5\u5FD7] %p %l - %m%n
 
log4j.appender.I=org.apache.log4j.DailyRollingFileAppender
log4j.appender.I.File=D:\\TestLogs\\INFO.log
log4j.appender.I.Threshold = INFO
log4j.appender.I.layout=org.apache.log4j.PatternLayout
log4j.appender.I.layout.ConversionPattern=%d-[\u65E5\u5FD7] %p %l - %m%n

log4j.appender.W=org.apache.log4j.DailyRollingFileAppender
log4j.appender.W.File=D:\\TestLogs\\WARN.log
log4j.appender.W.Threshold = WARN
log4j.appender.W.layout=org.apache.log4j.PatternLayout
log4j.appender.W.layout.ConversionPattern=%d-[\u65E5\u5FD7] %p %l - %m%n

log4j.appender.E=org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File=D:\\TestLogs\\ERROR.log
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout=org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern=%d-[\u65E5\u5FD7] %p %l - %m%n

log4j.logger.com.lzy.controller=DEBUG
log4j.logger.com.opensymphony.oscache=ERROR
log4j.logger.net.sf.navigator=ERROR
log4j.logger.org.apache.commons=ERROR
log4j.logger.org.apache.struts=WARN
log4j.logger.org.displaytag=ERROR
log4j.logger.org.springframework=DEBUG
log4j.logger.com.ibatis.db=WARN
log4j.logger.org.apache.velocity=FATAL
 
log4j.logger.com.canoo.webtest=WARN
 
log4j.logger.org.hibernate.ps.PreparedStatementCache=WARN
log4j.logger.org.hibernate=DEBUG
log4j.logger.org.logicalcobwebs=WARN

日志优先级
level 是日志记录的优先级，分为OFF、FATAL、ERROR、WARN、INFO、DEBUG、ALL或者自定义的级别。Log4j建议只使用四个级别，优先级从高到低分别是ERROR、WARN、INFO、DEBUG。经过在这里定义的级别，您能够控制到应用程序中相应级别的日志信息的开关。好比在这里定义了INFO级别，只有等于及高于这个级别的才进行处理，则应用程序中全部DEBUG级别的日志信息将不被打印出来。ALL:打印全部的日志，OFF：关闭全部的日志输出。