哪位大佬有Flink CDC写入Kafka根据指定key分区的代码？借我模仿一下？

使用 Flink CDC 将数据写入 Kafka 并根据指定的键（key）进行分区时，您可以使用 Flink 的 KeyedSerializationSchema 接口来实现自定义的序列化器，并在其中指定分区逻辑。

public class Tuple2KeyedSerializationSchema implements KeyedSerializationSchema> {

private String topic;
public Tuple2KeyedSerializationSchema(String topic) {
    this.topic = topic;
}

@Override
public byte[] serializeKey(Tuple2<String, String> stringStringTuple2) {
    return stringStringTuple2.f0.getBytes();
}

@Override
public byte[] serializeValue(Tuple2<String, String> stringStringTuple2) {
    //System.out.println(stringStringTuple2.f1);
    return stringStringTuple2.f1.getBytes();
}

@Override
public String getTargetTopic(Tuple2<String, String> element) {
    // We specify the target topic for the record. In this case, we use the same topic for all records.
    return topic;
}

}，此回答整理自钉群“Flink CDC 社区”