解决tomcat日志中cataline.out过大问题（切换用log4j）

最新推荐文章于 2023-06-26 14:46:53 发布

原创最新推荐文章于 2023-06-26 14:46:53 发布

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1、准备jar包和文件

地址https://download.youkuaiyun.com/download/gongchengshiv/10691222

里面包含：tomcat-juli.jar，tomcat-juli-adapters.jar，log4j-1.2.17.jar，log4j.properties四个文件

2、将log4j.jar 和 tomcat-juli-adapters.jar放到$CATALINA_HOME/lib目录下；

3、将log4j.properties 放到$CATALINA_HOME/lib目录下；

4、用新下载的tomcat-juli.jar替换掉$CATALINA_HOME/bin/中的tomcat-juli.jar；（下载的tomcat-juli.jar包含了所有Commons Logging实现，能够发现log4j和配置）

5、删除$CATALINA_BASE/conf/logging.properties
6、修改 Tomcat 的 conf/context.xml 文件，将<Context>改为<Context swallowOutput="true">

7、重启tomcat

结果如下：

说明：除了cataline.out，其他都是每日生成一个日志文件。

cataline.out日志内容很少，只有用默认日志类记录的才会进入。其他都是用新改的log4j日志，日志量很少。

再也不用怕calaline.out过大了，看不成大文件，几十G啊，排错困难的难题了。

附第二种log4j配置文件内容：

    log4j.rootLogger=INFO, CATALINA,LOCALHOST,MANAGER,HOST-MANAGER
 
    # Define all the appenders
    log4j.appender.CATALINA=org.apache.log4j.RollingFileAppender
    log4j.appender.CATALINA.File=${catalina.base}/logs/catalinas.out
    log4j.appender.CATALINA.MaxFileSize=10240KB
    log4j.appender.CATALINA.MaxBackupIndex=100
    log4j.appender.CATALINA.Append=true
    log4j.appender.CATALINA.Encoding=UTF-8
    # Roll-over the log once per day
    #log4j.appender.CATALINA.DatePattern='.'yyyy-MM-dd-HH-mm'.log'
    log4j.appender.CATALINA.layout = org.apache.log4j.PatternLayout
    log4j.appender.CATALINA.layout.ConversionPattern = %d [%t] %-5p %c- %m%n
 
    log4j.appender.LOCALHOST=org.apache.log4j.RollingFileAppender
    log4j.appender.LOCALHOST.File=${catalina.base}/logs/localhost.log
    log4j.appender.LOCALHOST.MaxFileSize=10240KB
    log4j.appender.LOCALHOST.MaxBackupIndex=100
    log4j.appender.LOCALHOST.Append=true
    log4j.appender.LOCALHOST.Encoding=UTF-8
    log4j.appender.LOCALHOST.layout = org.apache.log4j.PatternLayout
    log4j.appender.LOCALHOST.layout.ConversionPattern = %d [%t] %-5p %c- %m%n
 
    log4j.appender.MANAGER=org.apache.log4j.RollingFileAppender
    log4j.appender.MANAGER.File=${catalina.base}/logs/manager.log
    log4j.appender.MANAGER.MaxFileSize=10240KB
    log4j.appender.MANAGER.MaxBackupIndex=100
    log4j.appender.MANAGER.Append=true
    log4j.appender.MANAGER.Encoding=UTF-8
    log4j.appender.MANAGER.layout = org.apache.log4j.PatternLayout
    log4j.appender.MANAGER.layout.ConversionPattern = %d [%t] %-5p %c- %m%n
 
    log4j.appender.HOST-MANAGER=org.apache.log4j.RollingFileAppender
    log4j.appender.HOST-MANAGER.File=${catalina.base}/logs/host-manager.log
    log4j.appender.HOST-MANAGER.MaxFileSize=10240KB
    log4j.appender.HOST-MANAGER.MaxBackupIndex=100
    log4j.appender.HOST-MANAGER.Append=true
    log4j.appender.HOST-MANAGER.Encoding=UTF-8
    log4j.appender.HOST-MANAGER.layout = org.apache.log4j.PatternLayout
    log4j.appender.HOST-MANAGER.layout.ConversionPattern = %d [%t] %-5p %c- %m%n
 
    log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
    log4j.appender.CONSOLE.Encoding=UTF-8
    log4j.appender.CONSOLE.layout = org.apache.log4j.PatternLayout
    log4j.appender.CONSOLE.layout.ConversionPattern = %d [%t] %-5p %c- %m%n
 
    # Configure which loggers log to which appenders
    log4j.logger.org.apache.catalina.core.ContainerBase.[Catalina].[localhost]=INFO, LOCALHOST
    log4j.logger.org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/manager]=\
      INFO, MANAGER
    log4j.logger.org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/host-manager]=\
      INFO, HOST-MANAGER