获取实时Log4J消息 [英] Get live Log4J messages

问题描述

如何在中央类中获取log4j所写的内容，以监视应用程序中的所有log4j日志？

How do I get what is being written by log4j in central class which monitors all log4j logs in the application?

谢谢

编辑：我希望我不必从日志文件中读取它，因为它会使用更多资源

I wish I would not have to read it from the log file since it would use more resources

推荐答案

您可以实现自己的 Appender 和使用普通配置复制所有日志：

You can implement your own Appender and copy all logs on it using the normal config:

log4j.rootLogger=WARN, file, other

log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=${catalina.home}/logs/log.log
log4j.appender.file.MaxFileSize=10MB
log4j.appender.file.MaxBackupIndex=10
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{ISO8601} %p %t %c - %m%n

log4j.appender.other=class.path.of.your.Appender

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