检测Kafka服务器是否正在运行
/* from: https://stackoverflow.com/questions/37920923/how-to-check-whether-kafka-server-is-running */
使用Kafka的AdminClient
Properties properties = new Properties(); properties.put("bootstrap.servers", "localhost:9092"); properties.put("connections.max.idle.ms", 10000); properties.put("request.timeout.ms", 5000); try (AdminClient client = KafkaAdminClient.create(properties)) { ListTopicsResult topics = client.listTopics(); Set<String> names = topics.names().get(); System.out.println("connect to kafka cluster success"); if (names.isEmpty()) { // case: if no topic found. } // return true; } catch (InterruptedException | ExecutionException e) { // Kafka is not available System.out.println("connect to kafka cluster failed"); }