小编Far*_*ria的帖子

请帮助我想知道为什么 kafka 生产者总是连接到本地主机，但是代理 ip 不是本地主机。那么，有什么帮助吗？有任何想法吗 ？

import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.clients.producer.ProducerRecord;
import org.apache.kafka.common.serialization.StringSerializer;

import java.util.Properties;

public class ProducerDemo {

    public static void main(String[] args) throws Exception{
        String bootstrapServers = "192.168.199.137:9092";

        Properties properties = new Properties();
        properties.setProperty(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapServers);
        properties.setProperty(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class.getName());
        properties.setProperty(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class.getName());

        // create the producer
        KafkaProducer<String, String> producer = new KafkaProducer<String, String>(properties);

        System.out.println("kafka IP   " + properties.getProperty(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG));


        // create producer record
        ProducerRecord<String, String> record = new ProducerRecord<String, String>("first_topic", "Hello world");


        // send data
        producer.send(record);
        producer.flush();
        producer.close();

    }

}

这是 …