springboot flink消费kafka消息代码实现

最新推荐文章于 2025-03-22 20:25:19 发布

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最新推荐文章于 2025-03-22 20:25:19 发布

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flink初学：springboot flink消费kafka消息

/**
 * flink消费kafka消息
 * @author hao.yang
 * @date 2019/9/24
 */
public class Kafka2Flink {
    public static void main(String[] args) throws Exception {
        final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        Properties properties = new Properties();
        properties.setProperty("bootstrap.servers", "localhost:9090");
        properties.setProperty("group.id", "test");
        //构建FlinkKafkaConsumer
        FlinkKafkaConsumer<String> myConsumer = new FlinkKafkaConsumer<>("topic", new SimpleStringSchema(), properties);
        //指定偏移量
        myConsumer.setStartFromEarliest();
        DataStream<String> stream = env.addSource(myConsumer);
        env.enableCheckpointing(5000);
        stream.print();
        env.execute("flink consumer kafka infos");
    }
}