如何在kafka中初始化kafka ConsumerRecords<String，String>进行测试

import org.apache.kafka.clients.consumer.*;
import org.apache.kafka.common.serialization.StringDeserializer;

import java.util.Collections;
import java.util.Properties;

public class KafkaConsumerTest {
    public static void main(String[] args) {
        // 创建Kafka消费者配置对象
        Properties props = new Properties();
        props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, "kafka服务器地址");
        props.put(ConsumerConfig.GROUP_ID_CONFIG, "消费者组ID");
        props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getName());
        props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getName());

        // 创建Kafka消费者对象
        KafkaConsumer<String, String> consumer = new KafkaConsumer<>(props);

        // 创建消费者订阅对象，指定要消费的主题名称
        consumer.subscribe(Collections.singletonList("要消费的主题名称"));

        // 拉取消息并进行处理
        ConsumerRecords<String, String> records = consumer.poll(1000);
        for (ConsumerRecord<String, String> record : records) {
            String key = record.key();
            String value = record.value();
            // 处理消息的逻辑
            System.out.println("Received message: key = " + key + ", value = " + value);
        }

        // 关闭消费者
        consumer.close();
    }
}