appender级别过滤
additive==true
log对象本身日志级别过滤
配置文件<logger name=\"learnslf4j\" level=\"trace\" additivity=\"false\"> <appender-ref ref=\"STDOUT\" /> </logger> <root level=\"info\"> <appender-ref ref=\"STDOUT\" /> </root>
ROOT节点
log.trace
appender-ref集合输出
learnslf4j.LearnSlf4j类
14:34:11.841 [main] TRACE learnslf4j.LearnSlf4j - LearnSlf4j trace14:34:11.841 [main] TRACE learnslf4j.LearnSlf4j - LearnSlf4j trace
learnslf4j节点
learnslf4j.LearnSlf4节点
