报错内容：
Exception in thread "main" org.apache.kafka.common.KafkaException: Failed to construct kafka consumer
at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:781)
at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:635)
at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:617)
at com.czxy.zy01.Consumer.main(Consumer.java:22)
Caused by: org.apache.kafka.common.config.ConfigException: No resolvable bootstrap urls given in bootstrap.servers
at org.apache.kafka.clients.ClientUtils.parseAndValidateAddresses(ClientUtils.java:64)
at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:698)
... 3 more
项目源码:
package com.czxy.zy01;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.clients.consumer.ConsumerRecords;
import org.apache.kafka.clients.consumer.KafkaConsumer;
import java.util.Arrays;
import java.util.Properties;
/**
* @author kismet
* @date 2020-03-19 15:00
*/
public class Consumer {
public static void main(String[] args) {
Properties props = new Properties();
props.put("bootstrap.servers", "hadoop-01:9092");
props.put("group.id", "test");
props.put("enable.auto.commit", "true");
props.put("auto.commit.interval.ms", "1000");
props.put("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
props.put("value.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
KafkaConsumer<String, String> KafkaConsumer = new KafkaConsumer<>(props);
KafkaConsumer.subscribe(Arrays.asList("student"));
while (true){
ConsumerRecords<String, String> poll = KafkaConsumer.poll(1000);
for (ConsumerRecord<String, String> consumerRecord : poll) {
System.out.println(consumerRecord.value());
}
}
}
报错原因：
在bootstrap.servers中没有提供可解析的引导url
解决方法：
