英文:
Java - why Log4j2 is saving logs into .gz file instead of .txt
问题
以下是翻译好的部分：
Can someone explain me why Log4j2 is saving logs into .gz file? Why not .txt?
我能否请某人解释一下为什么Log4j2会将日志保存为.gz文件？为什么不是.txt文件？
I've changed configuration in .xml file to save in .txt and it works, but I'm not sure if it's a proper way to use logs?
我已经在.xml文件中更改了配置以保存为.txt文件，而且它有效，但我不确定这是否是使用日志的适当方式？
EDIT
My log4j2.xml file:
我的log4j2.xml文件：
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout
pattern="%style{%d{ISO8601}}{black} %highlight{%-5level }[%style{%t}{bright,blue}] %style{%C{1.}}{bright,yellow}: %msg%n%throwable" disableAnsi="false" />
</Console>
<RollingFile name="RollingFile"
fileName="./logs/trade-system-logger-log4j2.log"
filePattern="./logs/$${date:yyyy-MM}/trade-system-logger-log4j2-%d{-dd-MMMM-yyyy}-%i.log.gz">
<PatternLayout>
<pattern>%d %p %C{1.} [%t] %m%n</pattern>
</PatternLayout>
<Policies>
<!-- rollover on startup, daily and when the file reaches
10 MegaBytes -->
<OnStartupTriggeringPolicy />
<SizeBasedTriggeringPolicy
size="10 MB" />
<TimeBasedTriggeringPolicy />
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<!-- LOG everything at INFO level -->
<Root level="info">
<AppenderRef ref="Console" />
<AppenderRef ref="RollingFile" />
</Root>
<!-- LOG "com.baeldung*" at TRACE level -->
<Logger name="com.tradesystem" level="trace"></Logger>
</Loggers>
</Configuration>
请注意，我已按照您的要求将代码部分翻译为中文，但未进行问题回答。如果您有更多内容需要翻译，请继续提供。
英文:
Can someone explain me why Log4j2 is saving logs into .gz file? Why not .txt?
I've changed configuration in .xml file to save in .txt and it works, but I'm not sure if it's proper way to use logs?
EDIT
My log4j2.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout
pattern="%style{%d{ISO8601}}{black} %highlight{%-5level }[%style{%t}{bright,blue}] %style{%C{1.}}{bright,yellow}: %msg%n%throwable" disableAnsi="false" />
</Console>
<RollingFile name="RollingFile"
fileName="./logs/trade-system-logger-log4j2.log"
filePattern="./logs/$${date:yyyy-MM}/trade-system-logger-log4j2-%d{-dd-MMMM-yyyy}-%i.log.gz">
<PatternLayout>
<pattern>%d %p %C{1.} [%t] %m%n</pattern>
</PatternLayout>
<Policies>
<!-- rollover on startup, daily and when the file reaches
10 MegaBytes -->
<OnStartupTriggeringPolicy />
<SizeBasedTriggeringPolicy
size="10 MB" />
<TimeBasedTriggeringPolicy />
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<!-- LOG everything at INFO level -->
<Root level="info">
<AppenderRef ref="Console" />
<AppenderRef ref="RollingFile" />
</Root>
<!-- LOG "com.baeldung*" at TRACE level -->
<Logger name="com.tradesystem" level="trace"></Logger>
</Loggers>
</Configuration>
答案1
得分: 0
你正在使用 RollingFile Appender，这将会将日志存档到一个压缩文件中。
请阅读文档：https://logging.apache.org/log4j/2.x/manual/appenders.html#RollingFileAppender
英文:
You are using a RollingFile Appender and this will archive the logs in a compressed file.
Please read the documentation: https://logging.apache.org/log4j/2.x/manual/appenders.html#RollingFileAppender
答案2
得分: 0
因为你的filePattern=....log.gz，滚动文件将保存在.gz文件中。
尝试这样做：
filePattern="logs/$${date:yyyy-MM}/trade-system-logger-log4j2-%d{-dd-MMMM-yyyy}-%i.log">
滚动文件将以'.log'扩展名保存。
参考链接：http://logging.apache.org/log4j/extras/apidocs/org/apache/log4j/rolling/TimeBasedRollingPolicy.html
英文:
because of your filePattern=....log.gz . rolling file will save in .gz file.
try this
filePattern="./logs/$${date:yyyy-MM}/trade-system-logger-log4j2-%d{-dd-MMMM-yyyy}-%i.log">
the rolling file will save with extension '.log'
reference: http://logging.apache.org/log4j/extras/apidocs/org/apache/log4j/rolling/TimeBasedRollingPolicy.html
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