log4j和log4j2,nodejs日志

常数log4j s=require (log4j s )； log4j s.configure (appenders : (cheese 3360 ) type: ) file )，filename: ) cheese.log ) }，categories 3666 conconfion logger.trace (enteringcheesetesting )； Logger.debug('gotcheese.'； Logger.info(cheeseiscomt. )； logger.warn (cheeseisquitesmelly.'； logger.error('cheeseistooripe！' )； logger.fatal (cheesewasbreedinggroundforlisteria.' )；