如何在log4j2中使用Spring更改生产中的控制台日志记录？

Question

How can I disable console logging completely in production? (eg using spring.profiles.active=production ?

During dev I always want to see the full console logging. But in production I'd like to prevent console out. But how?

log4j2-spring.xml:

<configuration>
   <Appenders>
        <Console name="CONSOLE" target="SYSTEM_OUT">
            <ThresholdFilter level="INFO" onMatch="ACCEPT" onMismatch="DENY" />
        </Console>

        <RollingRandomAccessFile name="XML"  .../>
    </Appenders>

    <Loggers>
       <Root level="all">
            <AppenderRef ref="CONSOLE" />
            <AppenderRef ref="XML" />
       </Root>
    </Loggers>
</configuration>

Sidenote: the INFO statements should still be logged to XML file. They should just not be printed to console additionally.

Answer 1

It's possible using vm args as follows:

<Configuration>
    <Properties>
       <property name="console.log">INFO</property> <!-- default value if not set -->
    </Properties>

        <Console name="CONSOLE" target="SYSTEM_OUT">
            <ThresholdFilter level="${sys:console.log}" onMatch="ACCEPT" onMismatch="DENY" />
        </Console>

The logger will use INFO level by default. And when providing eg -Dconsole.log=ERROR on launch, it will only log errors to console.

Would be even nicer if log4j2 could read just a property defined in application-production.properties , but for not the approach works.