kafka 消费端代码：
public static void main(String[] args) {
String recordStrFormat = "offset = %d, key = %s, value = %s\n";
Properties props = new Properties();
props.put("bootstrap.servers", "spidercdh-01:9092");
props.put("group.id", "default");
props.put("enable.auto.commit", "true");
props.put("auto.commit.interval.ms", 1000);
props.put("session.timeout.ms", 30000);
props.put("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
props.put("value.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
KafkaConsumer<String, String> consumer = new KafkaConsumer<String, String>(props);
//test test2 为topic的名字
consumer.subscribe(Arrays.asList("test","test2"));
try {
while (true) {
ConsumerRecords<String, String> records = consumer.poll(100);
for (ConsumerRecord<String, String> record : records) {
System.out.println(String.format(recordStrFormat, record.offset(), record.key(), record.value()));
}
}
} finally {
if (null != consumer)
consumer.close();
}
}}