log4j，每天一份日志

最新推荐文章于 2025-12-20 08:07:31 发布

最新推荐文章于 2025-12-20 08:07:31 发布 · 74 阅读

文章标签：

#log4j #Apache #C #C++ #C#

本文详细介绍了Log4j的日志配置方法，包括定义名为helloAppLogger的logger、设置不同类型的appender（如控制台输出和文件滚动输出），并为它们分配了不同的布局样式。此外，还介绍了如何设置logger的级别及appender的日期模式。

## LOGGERS ##
#define a logger named helloAppLogger
log4j.rootLogger=INFO,console,file

## APPENDERS ##
# define an appender named console, which is set to be a ConsoleAppender
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.logger.PPLogger=WARN
log4j.logger.PPLogger.childLogger=,file

# define an appender named file, which is set to be a RollingFileAppender
# log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
log4j.appender.file.File=logs/pp.log
log4j.appender.file.DatePattern='.'yyyy-MM-dd

## LAYOUTS ##
# assign a SimpleLayout to console appender
log4j.appender.console.layout=org.apache.log4j.PatternLayout

# assign a PatternLayout to file appender
log4j.appender.file.layout=org.apache.log4j.PatternLayout
# log4j.appender.file.layout.ConversionPattern=%t %p - %m%n
# log4j.appender.file.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
log4j.appender.file.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss,SSS} [%c]-[%-5p] Method: %l%n%m%n