yaml 文件中的 KafkaListener 多個主題

Question

我想閱讀多個主題，所以我在 yaml 文件中聲明了它們，用逗號分隔但出現以下錯誤：

java.lang.IllegalStateException: 主題 [topic-1, topic-2, topic-3, topic-4, topic-5, topic-6, topic-7] 是/不存在且 missingTopicsFatal 為真

Spring:
  kafka:
    topics:
      tp: topic-1 ,  topic-2,  topic-3,  topic-4,  topic-5,  topic-6, topic-7

@KafkaListener(topics = "#{'${spring.kafka.topics.tp}'.split(',')}",
        concurrency = "190",
        clientIdPrefix = "client1",
        groupId = "group1")
public void listenData(final ConsumerRecord<Object, Object> inputEvent) throws Exception {
    handleMessage(inputEvent);
}

if i declare all topics inside KafkaListener annotation its working fine.

Answer 1

刪除空格

tp: topic-1,topic-2,topic-3,topic-4,topic-5,topic-6,topic-7

或使用

.split(' *, *')