java 使用 Logback-test.xml 向日志文件添加时间戳
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Adding timestamp to a log file using Logback-test.xml
提问by java123999
Currently my Spring-boot application logs to a file named: myLog.log, this is working as intended, however I would like the log file to have a timestampat the end of it and create a new fileeach time it is ran.
目前我的 Spring-boot 应用程序记录到一个名为: 的文件myLog.log，这按预期工作，但是我希望日志文件timestamp在它的末尾有一个，并在每次运行时创建一个新文件。
I have tried to implement this in my logback-test.xmlfile shown below, but it is just giving me the filename: myLog.log withouta timestamp.
我试图在我的logback-test.xml文件中实现这个，如下所示，但它只是给了我文件名：myLog.log没有时间戳。
How can I fix this?
我怎样才能解决这个问题？
Logback-test.xml:
Logback-test.xml：
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<include resource="org/springframework/boot/logging/logback/base.xml"/>
<logger name="org.springframework.web" level="INFO"/>
<!-- Send debug messages to System.out -->
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<!-- By default, encoders are assigned the type ch.qos.logback.classic.encoder.PatternLayoutEncoder -->
<encoder>
<pattern>%d{HH:mm:ss.SSS} - %msg%n</pattern>
</encoder>
</appender>
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>path/to/my/file/mylog.log</file>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<Pattern>%d{yyyy-MM-dd_HH:mm:ss.SSS} - %msg%n</Pattern>
</encoder>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<FileNamePattern>mylog.%i{yyyy-MM-dd_HH:mm:ss.SSS}}.log</FileNamePattern>
<MinIndex>1</MinIndex>
<MaxIndex>10</MaxIndex>
</rollingPolicy>
<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<MaxFileSize>2MB</MaxFileSize>
</triggeringPolicy>
</appender>
<logger name="com.my.package" level="INFO" additivity="false">
<appender-ref ref="STDOUT" />
<appender-ref ref="FILE" />
</logger>
<!-- By default, the level of the root level is set to DEBUG -->
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>
回答by nyname00
You can define a variable like this:
您可以像这样定义一个变量：
<timestamp key="myTimestamp" datePattern="yyyy-MM-dd'_'HH-mm-ss.SSS"/>
(note: don't use colons in datePattern)
（注意：不要在 中使用冒号datePattern）
Then use it directly in your appender's fileelement:
然后直接在你appender的file元素中使用它：
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>path/to/my/file/mylog-${myTimestamp}.log</file>
...
</appender>
Or in a simple FileAppender:
或者在一个简单的FileAppender：
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>path/to/my/file/mylog-${myTimestamp}.log</file>
<encoder>
<Pattern>%d{yyyy-MM-dd_HH:mm:ss.SSS} - %msg%n</Pattern>
</encoder>
</appender>
