Java – why Catalina home_ IS_ The undefined directory is generated by logback in the same project directory?

I wrote the logback configuration file for my application, but when I was doing Maven clean install (MVN clean install), it generated a Catalina with log files in the project directory home_ IS_ Undefined directory

I don't want it to appear in my project directory

What can help solve this problem?

This is the configuration file

<?xml version="1.0" encoding="UTF-8" ?>
<configuration>

    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%date{HH:mm:ss.SSS} %-5p [%t] %c{1} - %m%n</pattern>
        </encoder>
    </appender>

    <appender name="MY_APP_LOG" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${catalina.home}/logs/myApplication.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <FileNamePattern>${catalina.home}/logs/myApplication.%d{yyyy-MM-dd}.log</FileNamePattern>
        </rollingPolicy>
        <encoder>
            <pattern>%-5p  %date{HH:mm:ss.SSS} [%t] %c{1} - %m%n</pattern>
        </encoder>
        <append>true</append>
    </appender>

    <logger name="org.springframework" level="WARN"/>


    <root>
        <priority value="INFO"/>
        <appender-ref ref="CONSOLE"/>
        <appender-ref ref="MY_APP_LOG"/>
    </root>

</configuration>

Solution

background

This property failed to load because it is only populated by Tomcat It is not populated by Maven compilation tasks

Solution 1

In logback XML

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

    <if condition='isDefined("catalina.home")'>
        <then>
            <property name="log.folder" value="${catalina.home}/logs"/>
        </then>
        <else>
            <property name="log.folder" value="./target/logs"/>
        </else>
    </if>

    <appender name="companyMyAppServiceAppender" class="ch.qos.logback.core.FileAppender">
        <file>${log.folder}/company.myApp.log</file>
        ...
    </appender>

    ...

</configuration>

This will create a log file in the target folder at compile time, which will be cleared

Solution 2

Override value:

<property name="log.folder" value="./target/logs"/>
<if condition='isDefined("catalina.home")'>
    <then>
        <property name="log.folder" value="${catalina.home}/logs"/>
    </then>
</if>

NB！

And don't forget to import maven janino dependencies

<!-- The org.codehaus.janino:commons-compiler:2.7.8 dependency -->
<!-- will be automatically pulled in by Maven's transitivity rules -->
<dependency>
    <groupId>org.codehaus.janino</groupId>
    <artifactId>janino</artifactId>
    <version>2.7.8</version>
</dependency>