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  • Log4j各级别日志重复打印

    1. 使用filter进行日志过滤

    这个其实是Log4j自带的方案,也是推荐方案,不知道为什么网上的资料却很少提到这点。
    把log4j.properties配置文件修改成如下:

    #root日志
    log4j.rootLogger=INFO,stdout,info,warn,error
    
    #控制台日志
    log4j.appender.stdout=org.apache.log4j.ConsoleAppender
    log4j.appender.stdout.Target=System.out
    log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
    log4j.appender.stdout.layout.ConversionPattern=%d %-5p %c{1}:%L - %m%n
    
    #info级别日志
    log4j.appender.info=org.apache.log4j.RollingFileAppender
    log4j.appender.info.Threshold=INFO
    log4j.appender.info.File=/home/info.log
    log4j.appender.info.MaxFileSize=200MB
    log4j.appender.info.MaxBackupIndex=5
    log4j.appender.info.layout=org.apache.log4j.PatternLayout
    log4j.appender.info.layout.ConversionPattern=%d %-5p %l - %m%n
    log4j.appender.warn.filter.infoFilter = org.apache.log4j.varia.LevelRangeFilter
    log4j.appender.warn.filter.infoFilter.LevelMin=INFO
    log4j.appender.warn.filter.infoFilter.LevelMax=INFO
    
    #warn级别日志
    log4j.appender.warn=org.apache.log4j.RollingFileAppender
    log4j.appender.warn.Threshold=WARN
    log4j.appender.warn.File=/home/warn.log
    log4j.appender.warn.MaxFileSize=200MB
    log4j.appender.warn.MaxBackupIndex=5
    log4j.appender.warn.layout=org.apache.log4j.PatternLayout
    log4j.appender.warn.layout.ConversionPattern=%d %-5p %l - %m%n
    log4j.appender.warn.filter.infoFilter = org.apache.log4j.varia.LevelRangeFilter
    log4j.appender.warn.filter.infoFilter.LevelMin=WARN
    log4j.appender.warn.filter.infoFilter.LevelMax=WARN
    
    #error级别日志
    log4j.appender.error=org.apache.log4j.RollingFileAppender
    log4j.appender.error.Threshold=ERROR
    log4j.appender.error.File=/home/error.log
    log4j.appender.error.MaxFileSize=200MB
    log4j.appender.error.MaxBackupIndex=5
    log4j.appender.error.layout=org.apache.log4j.PatternLayout
    log4j.appender.error.layout.ConversionPattern=%d %-5p %l - %m%n
    log4j.appender.warn.filter.infoFilter = org.apache.log4j.varia.LevelRangeFilter
    log4j.appender.warn.filter.infoFilter.LevelMin=ERROR
    log4j.appender.warn.filter.infoFilter.LevelMax=ERROR
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  • 原文地址:https://www.cnblogs.com/chenrenshui/p/8466022.html
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