{"id":46748,"date":"2024-01-04T08:35:59","date_gmt":"2023-12-25T04:42:24","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/46748-2\/"},"modified":"2024-05-04T16:48:56","modified_gmt":"2024-05-04T08:48:56","slug":"46748-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/46748-2\/","title":{"rendered":""},"content":{"rendered":"

Spring Boot\u3067\u306fWeb\u30a2\u30d7\u30ea\u3092\u4f5c\u308b\u3053\u3068\u304c\u591a\u3044\u304b\u3082\u3057\u308c\u306a\u3044\u304c\u3001Kafka\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u958b\u767a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002\u4eca\u56de\u306fspring-kafka\u3092\u4f7f\u3063\u3066Consumer\u3092\u4f5c\u3063\u3066\u307f\u308b\u3002
\n\u5168\u4f53\u306e\u30b3\u30fc\u30c9\u306f\u4ee5\u4e0b\u306b\u3042\u308b\u3002
\nhttps:\/\/github.com\/Udomomo\/spring-boot-kafka-consumer<\/p>\n

\u30d0\u30fc\u30b8\u30e7\u30f3<\/h1>\n

Spring Boot: 2.4.2
\nspring-kafka: 2.6.5<\/p>\n

spring-kafka\u306e\u4ed5\u7d44\u307f<\/h1>\n

spring-kafka\u306b\u3088\u308bKafka Consumer\u306e\u51e6\u7406\u306f\u3001@KafkaListener \u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u3046\u3053\u3068\u3067\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u3053\u308c\u3092\u4f7f\u3046\u305f\u3081\u306b\u306f\u3001KafkaListenerContainerFactory \u3092\u4f5c\u6210\u3059\u308bBean\u3092 @Configuration \u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4ed8\u4e0e\u3057\u305f\u30af\u30e9\u30b9\u3067\u63d0\u4f9b\u3057\u3001\u3055\u3089\u306b\u305d\u306e\u30af\u30e9\u30b9\u306b @EnableKafka \u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4ed8\u4e0e\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a MessageListenerContainer \u304cDI\u30b3\u30f3\u30c6\u30ca\u306b\u767b\u9332\u3055\u308c\u3001Kafka Consumer\u304c\u81ea\u52d5\u3067\u8a2d\u5b9a\u3055\u308c\u308b\u3002<\/p>\n

application.yaml<\/h1>\n

\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001Kafka Consumer\u306e\u8a2d\u5b9a\u60c5\u5831\u3092\u30b3\u30fc\u30c9\u306e\u4e2d\u3067\u76f4\u63a5\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u30b3\u30fc\u30c9\u91cf\u3092\u6e1b\u3089\u3057\u3066\u3044\u308b\u304c\u3001\u4eca\u56de\u306f\u696d\u52d9\u3067\u4f7f\u3046\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u8fd1\u304f\u306a\u308b\u3088\u3046\u3001\u8a2d\u5b9a\u60c5\u5831\u3092application.yaml\u306b\u5207\u308a\u51fa\u3057\u3066\u307f\u308b\u3002
\napplication.yaml\u306b\u306f\u3001bootstrap-servers, group-id, topic \u306e3\u3064\u3092\u8a18\u8f09\u3059\u308b\u3002(Deserializer\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u88c5\u3068\u5bc6\u63a5\u306b\u95a2\u308f\u308b\u305f\u3081\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5185\u3067\u6307\u5b9a\u3059\u308b)<\/p>\n

kafka<\/span>:<\/span>\r\n  bootstrap-servers<\/span>:<\/span> http:\/\/localhost:9093<\/span>\r\n  group-id<\/span>:<\/span> foo<\/span>\r\n  topic<\/span>:<\/span> my-topic<\/span>\r\n<\/code><\/pre>\n
KafkaListenerContainerFactory\u306e\u4f5c\u6210<\/h1>\n
application.yaml\u3067\u8a18\u8f09\u3057\u305f\u8a2d\u5b9a\u60c5\u5831\u3092\u4f7f\u3044\u3001KafkaListenerContainerFactory \u3092\u4f5c\u6210\u3059\u308b\u3002
\n\u307e\u305a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089application.yaml\u306e\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u3002 @ConfigurationProperties \u3068\u3059\u308b\u3053\u3068\u3067\u3001application.yaml\u5185\u306e\u8a2d\u5b9a\u5024\u3092POJO\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3067\u304d\u308b\u3002\u307e\u305f\u3001prefix \u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067yaml\u306e\u968e\u5c64\u69cb\u9020\u3092\u6307\u5b9a\u3067\u304d\u308b\u3002
\n\u4e0b\u306e\u4f8b\u3067\u306f\u3001 prefix = kafka \u3068\u6307\u5b9a\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u4f8b\u3048\u3070 bootstrapServers \u30d7\u30ed\u30d1\u30c6\u30a3\u306bapplication.yaml\u5185\u306e kafka.bootstrap-servers \u306e\u5024\u304c\u30de\u30c3\u30d4\u30f3\u30b0\u3055\u308c\u308b\u3002(\u5927\u6587\u5b57\u5c0f\u6587\u5b57\u3084\u30cf\u30a4\u30d5\u30f3\u30fb\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\u306a\u3069\u306e\u8868\u8a18\u5dee\u306f\u3001Spring Boot\u306eRelaxed Binding\u6a5f\u80fd\u306b\u3088\u3063\u3066\u826f\u304d\u306b\u8a08\u3089\u3063\u3066\u304f\u308c\u308b\u3002\u8a73\u3057\u304f\u306f\u516c\u5f0f\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3092\u53c2\u7167)
\n\u306a\u304a\u3001\u8a2d\u5b9a\u5024\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u3066\u5f8c\u3067\u53d6\u5f97\u3059\u308b\u306b\u306fgetter\/setter\u30e1\u30bd\u30c3\u30c9\u304c\u5fc5\u8981\u306b\u306a\u308b\u3002\u4eca\u56de\u306fLombok\u306e @Data \u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066getter\/setter\u30e1\u30bd\u30c3\u30c9\u3092\u4f5c\u6210\u3057\u3066\u3044\u308b\u3002<\/p>\n
@ConfigurationProperties<\/span>(<\/span>prefix<\/span> =<\/span> \"kafka\"<\/span>)<\/span>\r\n@Data<\/span>\r\npublic<\/span> class<\/span> KafkaSettings<\/span> {<\/span>\r\n  private<\/span> String<\/span> bootstrapServers<\/span>;<\/span>\r\n  private<\/span> String<\/span> groupId<\/span>;<\/span>\r\n  private<\/span> String<\/span> topic<\/span>;<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u53d6\u5f97\u3057\u305f\u8a2d\u5b9a\u60c5\u5831\u3092\u7528\u3044\u3066\u3001KafkaConsumer\u3092\u8a2d\u5b9a\u3059\u308b\u3002\u307e\u305aDefaultKafkaConsumerFactory \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3057\u3001\u305d\u308c\u3092\u7528\u3044\u3066ConcurrentKafkaListenerContainerFactory \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3059\u308b\u3002\u3053\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306f ConcurrentKafkaListenerContainer \u3092\u751f\u6210\u3059\u308b\u30d5\u30a1\u30af\u30c8\u30ea\u3067\u3042\u308a\u3001\u3053\u308c\u306b\u3088\u3063\u3066\u8907\u6570\u306etopic\u3084partition\u304b\u3089\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u3067\u51e6\u7406\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u306b\u306a\u308b\u3002
\n\u307e\u305f\u3001@EnableConfigurationProperties\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001@ConfigurationProperties \u3092\u4ed8\u4e0e\u3057\u305fPOJO\u3092Bean\u3068\u3057\u3066\u767b\u9332\u3067\u304d\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u8a2d\u5b9a\u5024\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3055\u308c\u305fKafkaSettings\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u6271\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u3001getter\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u8a2d\u5b9a\u5024\u3092\u53d6\u5f97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3002<\/p>\n
@Configuration<\/span>\r\n@EnableKafka<\/span>\r\n@EnableConfigurationProperties<\/span>({<\/span>KafkaSettings<\/span>.<\/span>class<\/span>})<\/span>\r\npublic<\/span> class<\/span> KafkaConfig<\/span> {<\/span>\r\n  @Bean<\/span>\r\n  KafkaListenerContainerFactory<\/span><<\/span>ConcurrentMessageListenerContainer<\/span><<\/span>String<\/span>,<\/span> String<\/span>>><\/span>\r\n  kafkaListenerContainerFactory<\/span>(<\/span>KafkaSettings<\/span> settings<\/span>)<\/span> {<\/span>\r\n    ConcurrentKafkaListenerContainerFactory<\/span><<\/span>String<\/span>,<\/span> String<\/span>><\/span> factory<\/span> =<\/span>\r\n            new<\/span> ConcurrentKafkaListenerContainerFactory<\/span><>();<\/span>\r\n    factory<\/span>.<\/span>setConsumerFactory<\/span>(<\/span>consumerFactory<\/span>(<\/span>settings<\/span>));<\/span>\r\n    factory<\/span>.<\/span>getContainerProperties<\/span>().<\/span>setPollTimeout<\/span>(<\/span>3000<\/span>);<\/span>\r\n    return<\/span> factory<\/span>;<\/span>\r\n  }<\/span>\r\n\r\n  @Bean<\/span>\r\n  public<\/span> ConsumerFactory<\/span><<\/span>String<\/span>,<\/span> String<\/span>><\/span> consumerFactory<\/span>(<\/span>KafkaSettings<\/span> settings<\/span>)<\/span> {<\/span>\r\n    Map<\/span><<\/span>String<\/span>,<\/span> Object<\/span>><\/span> props<\/span> =<\/span> new<\/span> HashMap<\/span><>();<\/span>\r\n    props<\/span>.<\/span>put<\/span>(<\/span>ConsumerConfig<\/span>.<\/span>BOOTSTRAP_SERVERS_CONFIG<\/span>,<\/span> settings<\/span>.<\/span>getBootstrapServers<\/span>());<\/span>\r\n    props<\/span>.<\/span>put<\/span>(<\/span>ConsumerConfig<\/span>.<\/span>GROUP_ID_CONFIG<\/span>,<\/span> settings<\/span>.<\/span>getGroupId<\/span>());<\/span>\r\n    props<\/span>.<\/span>put<\/span>(<\/span>ConsumerConfig<\/span>.<\/span>KEY_DESERIALIZER_CLASS_CONFIG<\/span>,<\/span> StringDeserializer<\/span>.<\/span>class<\/span>);<\/span>\r\n    props<\/span>.<\/span>put<\/span>(<\/span>ConsumerConfig<\/span>.<\/span>VALUE_DESERIALIZER_CLASS_CONFIG<\/span>,<\/span> StringDeserializer<\/span>.<\/span>class<\/span>);<\/span>\r\n\r\n    return<\/span> new<\/span> DefaultKafkaConsumerFactory<\/span><>(<\/span>props<\/span>);<\/span>\r\n  }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u6700\u5f8c\u306b\u3001 @KafkaListener \u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u3063\u3066Consumer\u306e\u30e1\u30a4\u30f3\u30ed\u30b8\u30c3\u30af\u3092\u5b9f\u88c5\u3059\u308b\u3002\u3053\u3053\u3067\u306fListen\u3059\u308btopic\u306e\u540d\u524d\u3092\u6307\u5b9a\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u304c\u3001 topics = “${kafka.topic}” \u306e\u3088\u3046\u306bSpEL\u3092\u4f7f\u3046\u3053\u3068\u3067application.yaml\u306etopic\u306e\u5024\u3092\u76f4\u63a5\u547c\u3073\u51fa\u3057\u3066\u3044\u308b\u3002\u3053\u306e\u90e8\u5206\u3067\u306f groupId \u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u304c\u3001\u4eca\u56de\u306fgroupId\u306f@ConfigurationProperties \u3092\u901a\u3058\u3066\u65e2\u306b\u6307\u5b9a\u3057\u305f\u306e\u3067\u305d\u3061\u3089\u304c\u4f7f\u308f\u308c\u308b\u3002<\/p>\n
@Component<\/span>\r\npublic<\/span> class<\/span> KafkaConsumer<\/span> {<\/span>\r\n  @KafkaListener<\/span>(<\/span>topics<\/span> =<\/span> \"${kafka.topic}\"<\/span>)<\/span>\r\n  public<\/span> void<\/span> consume<\/span>(<\/span>ConsumerRecord<\/span><<\/span>String<\/span>,<\/span> String<\/span>><\/span> record<\/span>)<\/span> {<\/span>\r\n    System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"key: \"<\/span> +<\/span> record<\/span>.<\/span>key<\/span>()<\/span> +<\/span> \", value: \"<\/span> +<\/span> record<\/span>.<\/span>value<\/span>());<\/span>\r\n  }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9001\u4fe1<\/h1>\n
bitnami\/kafka\u3092\u4f7f\u3063\u3066Kafka broker\u3092\u7acb\u3066\u308b\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3059\u308b\u3068\u3001Docker\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u90e8\u304b\u3089\u306e\u63a5\u7d9a\u306f localhost:9092 \u3067\u3001\u5916\u90e8\u304b\u3089\u306e\u63a5\u7d9a\u306f localhost:9093 \u3067\u53d7\u3051\u4ed8\u3051\u3089\u308c\u308b\u3002<\/p>\n
version<\/span>:<\/span> \"<\/span>2\"<\/span>\r\n\r\nservices<\/span>:<\/span>\r\n  zookeeper<\/span>:<\/span>\r\n    image<\/span>:<\/span> docker.io\/bitnami\/zookeeper:3.7<\/span>\r\n    ports<\/span>:<\/span>\r\n      -<\/span> \"<\/span>2181:2181\"<\/span>\r\n    volumes<\/span>:<\/span>\r\n      -<\/span> \"<\/span>zookeeper_data:\/bitnami\"<\/span>\r\n    environment<\/span>:<\/span>\r\n      -<\/span> ALLOW_ANONYMOUS_LOGIN=yes<\/span>\r\n  kafka<\/span>:<\/span>\r\n    image<\/span>:<\/span> docker.io\/bitnami\/kafka:2<\/span>\r\n    ports<\/span>:<\/span>\r\n      -<\/span> \"<\/span>9093:9093\"<\/span>\r\n    volumes<\/span>:<\/span>\r\n      -<\/span> \"<\/span>kafka_data:\/bitnami\"<\/span>\r\n    environment<\/span>:<\/span>\r\n      -<\/span> KAFKA_CFG_ZOOKEEPER_CONNECT=zookeeper:2181<\/span>\r\n      -<\/span> ALLOW_PLAINTEXT_LISTENER=yes<\/span>\r\n      -<\/span> KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP=CLIENT:PLAINTEXT,EXTERNAL:PLAINTEXT<\/span>\r\n      -<\/span> KAFKA_CFG_LISTENERS=CLIENT:\/\/:9092,EXTERNAL:\/\/:9093<\/span>\r\n      -<\/span> KAFKA_CFG_ADVERTISED_LISTENERS=CLIENT:\/\/kafka:9092,EXTERNAL:\/\/localhost:9093<\/span>\r\n      -<\/span> KAFKA_INTER_BROKER_LISTENER_NAME=CLIENT<\/span>\r\n    depends_on<\/span>:<\/span>\r\n      -<\/span> zookeeper<\/span>\r\n\r\nvolumes<\/span>:<\/span>\r\n  zookeeper_data<\/span>:<\/span>\r\n    driver<\/span>:<\/span> local<\/span>\r\n  kafka_data<\/span>:<\/span>\r\n    driver<\/span>:<\/span> local<\/span>\r\n<\/code><\/pre>\n
kafka cli\u304b\u3089topic\u3092\u4f5c\u308a\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u3063\u3066\u307f\u308b\u3002<\/p>\n
$ <\/span>docker-compose up -d<\/span>\r\n$ <\/span>docker-compose exec <\/span>kafka \/opt\/bitnami\/kafka\/bin\/kafka-topics.sh --create<\/span> --topic<\/span> my-topic --bootstrap-server<\/span> localhost:9092\r\n$ <\/span>docker-compose exec <\/span>kafka \/opt\/bitnami\/kafka\/bin\/kafka-console-producer.sh --broker-list<\/span> localhost:9092 --topic<\/span> my-topic --property<\/span> \"parse.key=true\"<\/span> --property<\/span> \"key.separator=,\"<\/span>\r\n><\/span>hello,hi\r\n<\/code><\/pre>\n
Spring Boot\u5074\u3067\u30ed\u30b0\u304c\u51fa\u308c\u3070\u6210\u529f\u3002<\/p>\n
key: hello, value: hi\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
Spring Boot\u3067\u306fWeb\u30a2\u30d7\u30ea\u3092\u4f5c\u308b\u3053\u3068\u304c\u591a\u3044\u304b\u3082\u3057\u308c\u306a\u3044\u304c\u3001Kafka\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u958b\u767a\u3059\u308b\u3053\u3068\u3082\u3067 […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-46748","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/46748-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"Spring Boot\u3067\u306fWeb\u30a2\u30d7\u30ea\u3092\u4f5c\u308b\u3053\u3068\u304c\u591a\u3044\u304b\u3082\u3057\u308c\u306a\u3044\u304c\u3001Kafka\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u958b\u767a\u3059\u308b\u3053\u3068\u3082\u3067 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/46748-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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