如何在log4j2中用编程配置方式配置KafkaAppender？

<Appenders>
    <Kafka name="kafkaAppender" topic="my-topic">
        <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
        <Property name="bootstrap.servers">localhost:9092</Property>
        <Property name="key.serializer">org.apache.kafka.common.serialization.StringSerializer</Property>
        <Property name="value.serializer">org.apache.kafka.common.serialization.StringSerializer</Property>
    </Kafka>
</Appenders>

<Loggers>
    <Root level="info">
        <AppenderRef ref="kafkaAppender" />
    </Root>
</Loggers>

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

public class MyApp {
    private static final Logger logger = LogManager.getLogger(MyApp.class);

    public static void main(String[] args) {
        logger.info("This is an info message");
        logger.error("This is an error message");
    }
}