{"id":117321,"date":"2024-03-23T09:57:31","date_gmt":"2024-03-23T00:57:31","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/kafka-%e3%81%8b%e3%82%89-java-%e3%81%a7%e3%83%87%e3%83%bc%e3%82%bf%e3%82%92%e8%aa%ad%e3%81%bf%e8%be%bc%e3%82%80%e3%81%ab%e3%81%af\/"},"modified":"2024-04-05T22:03:00","modified_gmt":"2024-04-05T13:03:00","slug":"kafka-%e3%81%8b%e3%82%89-java-%e3%81%a7%e3%83%87%e3%83%bc%e3%82%bf%e3%82%92%e8%aa%ad%e3%81%bf%e8%be%bc%e3%82%80%e3%81%ab%e3%81%af","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/kafka-%e3%81%8b%e3%82%89-java-%e3%81%a7%e3%83%87%e3%83%bc%e3%82%bf%e3%82%92%e8%aa%ad%e3%81%bf%e8%be%bc%e3%82%80%e3%81%ab%e3%81%af\/","title":{"rendered":"Kafka \u304b\u3089 Java \u3067\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u306b\u306f"},"content":{"rendered":"

Kafka\u304b\u3089\u30c7\u30fc\u30bf\u3092\u30d7\u30c3\u30b7\u30e5\u3059\u308b\u306b\u306f\u3001Kafka Java\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001Kafka\u304b\u3089Java\u3067\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308b\u624b\u9806\u3067\u3059\u3002<\/p>\n

    \n
  1. Maven\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306epom.xml\u30d5\u30a1\u30a4\u30eb\u306b\u3001Kafka\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4f9d\u5b58\u95a2\u4fc2\u3068\u3057\u3066\u4ee5\u4e0b\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n
    <dependency<\/span>><\/span>\r\n    <groupId<\/span>><\/span>org.apache.kafka<\/groupId<\/span>><\/span>\r\n    <artifactId<\/span>><\/span>kafka-clients<\/artifactId<\/span>><\/span>\r\n    <version<\/span>><\/span>2.8.1<\/version<\/span>><\/span>\r\n<\/dependency<\/span>><\/span>\r\n<\/code><\/pre>\n
      \n
    1. Kafka\u306eConsumer\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3001Kafka\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002Kafka\u30af\u30e9\u30b9\u30bf\u30fc\u306e\u30db\u30b9\u30c8\u540d\u3001\u30dd\u30fc\u30c8\u756a\u53f7\u3001\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u30b0\u30eb\u30fc\u30d7ID\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n
      Properties<\/span> properties<\/span> =<\/span> new<\/span> Properties<\/span>();\r\nproperties.put(\"bootstrap.servers\"<\/span>, \"localhost:9092\"<\/span>); \/\/ Kafka\u96c6\u7fa4\u7684\u5730\u5740\u548c\u7aef\u53e3\u53f7<\/span>\r\nproperties.put(\"group.id\"<\/span>, \"my-group\"<\/span>); \/\/ \u6d88\u8d39\u8005\u7ec4ID<\/span>\r\n\r\nConsumer<String, String> consumer = new<\/span> KafkaConsumer<\/span><>(properties);\r\n<\/code><\/pre>\n
        \n
      1. \u8cfc\u8aad\u3059\u308b<\/li>\n<\/ol>\n
        consumer.subscribe(Arrays.asList(\"my-topic\"<\/span>)); \/\/ \u8ba2\u9605\u540d\u4e3a\"my-topic\"\u7684\u4e3b\u9898<\/span>\r\n<\/code><\/pre>\n
          \n
        1. poll()<\/li>\n
        2. \u30d6\u30ed\u30c3\u30af<\/li>\n<\/ol>\n
          while<\/span> (true<\/span>) {\r\n    ConsumerRecords<String, String> records = consumer.poll(Duration.ofMillis(100<\/span>));\r\n\r\n    for<\/span> (ConsumerRecord<String, String> record : records) {\r\n        String<\/span> key<\/span> =<\/span> record.key();\r\n        String<\/span> value<\/span> =<\/span> record.value();\r\n\r\n        \/\/ \u5904\u7406\u6d88\u606f<\/span>\r\n        System.out.println(\"Received message: key = \"<\/span> + key + \", value = \"<\/span> + value);\r\n    }\r\n}\r\n<\/code><\/pre>\n
            \n
          1. \u9589\u3058\u308b<\/li>\n<\/ol>\n
            consumer.close();\r\n<\/code><\/pre>\n
            Java \u3067 Kafka \u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308b\u305f\u3081\u306e\u6e96\u5099\u304c\u6574\u3044\u307e\u3057\u305f\u3002\u305f\u3060\u3057\u3001\u4e0a\u306e\u30b3\u30fc\u30c9\u306f\u57fa\u672c\u7684\u306a\u4f8b\u306e\u307f\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u5b9f\u969b\u306e\u4f7f\u7528\u3067\u306f\u3001\u5177\u4f53\u7684\u306a\u30cb\u30fc\u30ba\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u4fee\u6b63\u3068\u8abf\u6574\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
            Kafka\u304b\u3089\u30c7\u30fc\u30bf\u3092\u30d7\u30c3\u30b7\u30e5\u3059\u308b\u306b\u306f\u3001Kafka Java\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001Kafka\u304b\u3089Java\u3067\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308b\u624b\u9806\u3067\u3059\u3002 Maven\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306epom.xml\u30d5\u30a1\u30a4\u30eb\u306b\u3001Kafka\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30e9 […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-117321","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nKafka \u304b\u3089 Java \u3067\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u306b\u306f - 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\/ja\/blog\/kafka-\u304b\u3089-java-\u3067\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u306b\u306f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kafka \u304b\u3089 Java \u3067\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u306b\u306f\" \/>\n<meta property=\"og:description\" content=\"Kafka\u304b\u3089\u30c7\u30fc\u30bf\u3092\u30d7\u30c3\u30b7\u30e5\u3059\u308b\u306b\u306f\u3001Kafka Java\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001Kafka\u304b\u3089Java\u3067\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308b\u624b\u9806\u3067\u3059\u3002 Maven\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306epom.xml\u30d5\u30a1\u30a4\u30eb\u306b\u3001Kafka\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30e9 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/kafka-\u304b\u3089-java-\u3067\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u306b\u306f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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