如何在spring boot app中配置日志仅为JSON格式？

<dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-classic</artifactId>
</dependency>
<dependency>
    <groupId>net.logstash.logback</groupId>
    <artifactId>logstash-logback-encoder</artifactId>
</dependency>

<configuration>
    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder class="net.logstash.logback.encoder.LogstashEncoder" />
    </appender>
    
    <root level="info">
        <appender-ref ref="console" />
    </root>
</configuration>

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@RestController
public class MyController {
    private static final Logger logger = LoggerFactory.getLogger(MyController.class);
    
    @GetMapping("/example")
    public String example() {
        logger.info("This is an example log message.");
        return "Example";
    }
}