正文:
一、Spring Boot 项目集成 Kafka 和 Flink 流处理框架概述
Spring Boot 项目集成 Kafka 和 Flink 流处理框架,可以实现实时数据处理和分析。Kafka 用于实时收集数据,Flink 用于
处理和分析数据。通过这种集成,可以构建一个高效、可扩展的实时数据流处理系统。
<dependencies> <!-- Kafka 依赖 --> <dependency> <groupId>org.springframework.kafka</groupId> <artifactId>spring-kafka</artifactId> <version>2.7.0</version> </dependency> <!-- Flink 依赖 --> <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-java</artifactId> <version>1.14.2</version> </dependency> <!-- 其他依赖 --> </dependencies>
spring:
kafka:
bootstrap-servers: localhost:9092
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.stereotype.Component;
@Component
public class KafkaConsumer {
@KafkaListener(topics = "topic_name")
public void consume(String message) {
System.out.println("Received message: " + message);
}
}
import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
public class FlinkStreamProcessor {
public static void main(String[] args) throws Exception {
StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
DataStream<String> kafkaStream = env.addSource(new KafkaSource());
DataStream<Tuple2<String, Integer>> processedStream = kafkaStream.map(new MapFunction<String, Tuple2<String, Integer>>() {
@Override
public Tuple2<String, Integer> map(String value) throws Exception {
// 处理消息
return new Tuple2<>(value, 1);
}
});
processedStream.print();
env.execute("Flink Stream Processing");
}
}
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.stereotype.Component;
@Component
public class KafkaConsumer {
@Autowired
private FlinkStreamProcessor flinkStreamProcessor;
@KafkaListener(topics = "topic_name")
public void consume(String message) {
flinkStreamProcessor.process(message);
}
}
原文链接:https://blog.csdn.net/u013558123/article/details/137190569