flink消费kafka存入redis

import org.apache.flink.api.common.serialization.SimpleStringSchema;
import org.apache.flink.streaming.api.datastream.DataStreamSource;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer;

import java.util.Properties;

public class KafkaConsumerExample {
    public static void main(String[] args) throws Exception {

        // 设置Flink StreamExecutionEnvironment
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

        // 配置Kafka Consumer的属性
        Properties properties = new Properties();
        properties.setProperty("bootstrap.servers", "localhost:9092");
        properties.setProperty("group.id", "flink-consumer-group");

        // 从Kafka消费数据
        FlinkKafkaConsumer<String> consumer = new FlinkKafkaConsumer<>("your-topic", new SimpleStringSchema(), properties);
        DataStreamSource<String> kafkaDataStream = env.addSource(consumer);

        // 将数据存储到Redis中
        kafkaDataStream.addSink(new RedisSink());

        // 执行Flink程序
        env.execute("Kafka Consumer Example");
    }
}

import org.apache.flink.configuration.Configuration;
import org.apache.flink.streaming.api.functions.sink.RichSinkFunction;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.exceptions.JedisConnectionException;

public class RedisSink extends RichSinkFunction<String> {
    private Jedis jedis;

    @Override
    public void open(Configuration parameters) throws Exception {
        // 在这里初始化Redis连接
        jedis = new Jedis("localhost", 6379);
    }

    @Override
    public void invoke(String value, Context context) throws Exception {
        try {
            jedis.set("my-key", value);
        } catch (JedisConnectionException e) {
            // 处理连接异常
        }
    }

    @Override
    public void close() throws Exception {
        // 关闭Redis连接
        jedis.close();
    }
}