java 读取文件内容写入kafka-蒲公英云

java 读取文件内容写入kafka

た入场券 2022-11-18 04:54 397阅读 0赞

package Project;
import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.ProducerRecord;
import java.io.BufferedReader;
import java.io.FileReader;
import java.util.Properties;
public class KafkaProducerDemo {
    public static void main(String[] args) throws Exception{
        writeToKafka("test");
    }
    //包装一个写入kafka的方法
    public static void writeToKafka(String topic) throws Exception{
        //kafka配置
        Properties properties = new Properties();
        properties.setProperty("bootstrap.servers", "localhost:9092");
        properties.setProperty("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
        properties.setProperty("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
        //定义Kafka Producer
        KafkaProducer<String, String> kafkaProducer = new KafkaProducer<>(properties);
        //用缓冲方式读取文本
        BufferedReader bufferedReader = new BufferedReader(new FileReader("filePath"));
        String line;
        while((line = bufferedReader.readLine())!=null){
            ProducerRecord<String, String> producerRecord = new ProducerRecord<>(topic, line);
            //发送数据
            kafkaProducer.send(producerRecord);
        }
        kafkaProducer.close();
    }
}