如何在Tomcat中设置服务器日志位置

Question

I recently started working in a Spring boot application. The application uses spring-logback for logging implementation.

The application is bundled as a war in different environments. However, the location of writing logs is different in each environment and is mentioned in a logging.properties file.

Therefore, I currently have to change the location before preparing the war every time.

How can I set the path of the logs in the Tomcat configuration so that the path is auto-picked for an environment.

Currently mu logback appender looks like this:

<appender name="FILE"
    class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>${logging.file}</file>
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

        <!-- daily rollover -->
        <fileNamePattern>${logging.file}.%d{yyyy-MM-dd}.%i.log</fileNamePattern>
        <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
            <maxFileSize>${log.file.size}</maxFileSize>
        </timeBasedFileNamingAndTriggeringPolicy>
        <maxHistory>${log.file.history}</maxHistory>
    </rollingPolicy>
    <encoder>
        <pattern>${logging.pattern.file}</pattern>
    </encoder>
</appender>

All the properties here are picked from logging.properties file inside the src/main/resources

Answer 1

spring-boot provides several logging.* settings that can be applied in application.properties, like:

logging.level.=DEBUG
logging.file=myfile.log
logging.path=d:/logs/  

If you set logging.path, Spring Boot writes spring.log to the specified directory. Names can be an exact location or relative to the current directory.