如何仅打印kafka记录值，而不是所有其他数据？

Question

所以我是kafka的新手，我一直在关注一些教程并在Internet上搜索，因此我设法用Java设置了生产者和使用者脚本。但是，不仅仅是打印消息（值），我在eclipse控制台中得到以下结果：

ConsumerRecord(topic = MyTopic, partition = 0, leaderEpoch = 0, offset = 131, CreateTime = 1579178094212, serialized key size = 10, serialized value size = 31, headers = RecordHeaders(headers = [], isReadOnly = false), key = Simple Key, value = Custom test message)

相反，如果我在Windows控制台中运行使用者，则只会得到该值，这意味着我会收到“自定义测试消息”。

如何在Eclipse控制台上从kafka使用者记录中选择并仅打印“ value”属性？或与此相关的任何其他财产。

编辑：

对于询问我如何打印所有数据的人，这是我的使用者脚本中的代码：

    package com.okta.javakafka.kafkajava;

    import java.util.Arrays;

    import java.util.Properties;
    import java.util.UUID;

    import org.apache.kafka.clients.consumer.ConsumerConfig;

    import org.apache.kafka.clients.consumer.ConsumerRecord;
    import org.apache.kafka.clients.consumer.ConsumerRecords;
    import org.apache.kafka.clients.consumer.KafkaConsumer;



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

    public class SimpleConsumer 


        public static void main(String[] args) throws ClassNotFoundException
            ch.qos.logback.classic.Logger root = (ch.qos.logback.classic.Logger) org.slf4j.LoggerFactory.getLogger(ch.qos.logback.classic.Logger.ROOT_LOGGER_NAME);
            root.setLevel(ch.qos.logback.classic.Level.INFO);
            Properties props = new Properties();
            props.put("bootstrap.servers", "localhost:9092");
            props.put("group.id","test");
            props.put("enable.auto.commit","true");
            props.put("auto.commit.interval.ms","1000");
            props.put(ConsumerConfig.GROUP_ID_CONFIG, UUID.randomUUID().toString());
            props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
    props.put("key.deserializer",Class.forName("org.apache.kafka.common.serialization.StringDeserializer"));
            props.put("value.deserializer", Class.forName("org.apache.kafka.common.serialization.StringDeserializer"));

            KafkaConsumer<String,String> consumer = new KafkaConsumer<String,String>(props);
            consumer.subscribe(Arrays.asList("MyTopic"));

            try 
                while(true) 
                    ConsumerRecords<String,String> records = consumer.poll(1000);
                    for(ConsumerRecord<String,String> record : records)
                    System.out.println(record.toString());

                

            finally 
                consumer.close();