package com.cisdi.dsp.modules.metaAnalysis.rest.kafka2023;
import org.apache.kafka.clients.consumer.*;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.PartitionInfo;
import org.apache.kafka.common.TopicPartition;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.apache.kafka.common.serialization.StringSerializer;
import java.time.Duration;
import java.time.temporal.TemporalUnit;
import java.util.*;
import java.util.concurrent.TimeUnit;
/*
消费指定的时间戳之后的消息
*/
public class KafkaTest16 {
private static Properties getProperties(){
Properties properties=new Properties();
properties.setProperty(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getName());
properties.setProperty(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getName());
properties.setProperty(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG,"xx.xx.xx.xx:9092");
properties.setProperty(ConsumerConfig.GROUP_ID_CONFIG,"testGroup12");
properties.setProperty(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG,"false");
return properties;
}
public static void main(String[] args) {
KafkaConsumer<String,String> myConsumer=new KafkaConsumer<String, String>(getProperties());
Map<TopicPartition, OffsetAndMetadata> offsetMap = new HashMap<>();
myConsumer.subscribe(Arrays.asList("student"), new ConsumerRebalanceListener() {
@Override
public void onPartitionsRevoked(Collection<TopicPartition> partitions) {
myConsumer.commitSync(offsetMap);
offsetMap.clear();
}
@Override
public void onPartitionsAssigned(Collection<TopicPartition> partitions) {
}
});
while(true){
ConsumerRecords<String, String> consumerRecords = myConsumer.poll(Duration.ofMillis(5000));
for(ConsumerRecord record: consumerRecords){
System.out.println(record.value());
System.out.println(record.offset());
offsetMap.put(new TopicPartition(record.topic(), record.partition()),
new OffsetAndMetadata(record.offset() +1 ));
}
myConsumer.commitAsync(offsetMap, null);
}
}
}