{"id":30037,"date":"2024-03-18T23:14:31","date_gmt":"2024-03-18T14:14:31","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7kafka%e3%82%af%e3%83%a9%e3%82%b9%e3%82%bf%e3%81%ab%e6%8e%a5%e7%b6%9a%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/"},"modified":"2024-03-22T22:24:57","modified_gmt":"2024-03-22T13:24:57","slug":"java%e3%81%a7kafka%e3%82%af%e3%83%a9%e3%82%b9%e3%82%bf%e3%81%ab%e6%8e%a5%e7%b6%9a%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7kafka%e3%82%af%e3%83%a9%e3%82%b9%e3%82%bf%e3%81%ab%e6%8e%a5%e7%b6%9a%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/","title":{"rendered":"Java\u3067Kafka\u30af\u30e9\u30b9\u30bf\u306b\u63a5\u7d9a\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<p>Kafka\u30af\u30e9\u30b9\u30bf\u30fc\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306b\u306f\u3001Java\u3067\u6b21\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<ol>\n<li>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306epom.xml\u30d5\u30a1\u30a4\u30eb\u306bKafka\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">dependency<\/span>&gt;<\/span>\r\n   <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">groupId<\/span>&gt;<\/span>org.apache.kafka<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">groupId<\/span>&gt;<\/span>\r\n   <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">artifactId<\/span>&gt;<\/span>kafka-clients<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">artifactId<\/span>&gt;<\/span>\r\n   <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">version<\/span>&gt;<\/span>2.8.0<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">version<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">dependency<\/span>&gt;<\/span>\r\n<\/code><\/pre>\n<ol>\n<li>KafkaProducer\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3059\u308b\uff1a\u6b21\u306e\u30b3\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066KafkaProducer\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3057\u3001Kafka\u30af\u30e9\u30b9\u30bf\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> org.apache.kafka.clients.producer.KafkaProducer;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.kafka.clients.producer.Producer;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.kafka.clients.producer.ProducerConfig;\r\n\r\n<span class=\"hljs-keyword\">import<\/span> java.util.Properties;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">KafkaProducerExample<\/span> {\r\n   <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {\r\n\r\n      <span class=\"hljs-comment\">\/\/ Kafka\u96c6\u7fa4\u5730\u5740<\/span>\r\n      <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">kafkaServers<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"localhost:9092,localhost:9093,localhost:9094\"<\/span>;\r\n\r\n      <span class=\"hljs-comment\">\/\/ KafkaProducer\u914d\u7f6e<\/span>\r\n      <span class=\"hljs-type\">Properties<\/span> <span class=\"hljs-variable\">props<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Properties<\/span>();\r\n      props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, kafkaServers);\r\n      props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, <span class=\"hljs-string\">\"org.apache.kafka.common.serialization.StringSerializer\"<\/span>);\r\n      props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, <span class=\"hljs-string\">\"org.apache.kafka.common.serialization.StringSerializer\"<\/span>);\r\n\r\n      <span class=\"hljs-comment\">\/\/ \u521b\u5efaKafkaProducer\u5b9e\u4f8b<\/span>\r\n      Producer&lt;String, String&gt; producer = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">KafkaProducer<\/span>&lt;&gt;(props);\r\n\r\n      <span class=\"hljs-comment\">\/\/ \u53d1\u9001\u6d88\u606f<\/span>\r\n      <span class=\"hljs-comment\">\/\/ ...<\/span>\r\n\r\n      <span class=\"hljs-comment\">\/\/ \u5173\u95edKafkaProducer<\/span>\r\n      producer.close();\r\n   }\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>KafkaConsumer\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3059\u308b\uff1a\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066KafkaConsumer\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3057\u3001Kafka\u30af\u30e9\u30b9\u30bf\u30fc\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3059\u308b\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> org.apache.kafka.clients.consumer.Consumer;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.kafka.clients.consumer.ConsumerConfig;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.kafka.clients.consumer.KafkaConsumer;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.kafka.common.serialization.StringDeserializer;\r\n\r\n<span class=\"hljs-keyword\">import<\/span> java.util.Arrays;\r\n<span class=\"hljs-keyword\">import<\/span> java.util.Properties;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">KafkaConsumerExample<\/span> {\r\n   <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {\r\n\r\n      <span class=\"hljs-comment\">\/\/ Kafka\u96c6\u7fa4\u5730\u5740<\/span>\r\n      <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">kafkaServers<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"localhost:9092,localhost:9093,localhost:9094\"<\/span>;\r\n\r\n      <span class=\"hljs-comment\">\/\/ KafkaConsumer\u914d\u7f6e<\/span>\r\n      <span class=\"hljs-type\">Properties<\/span> <span class=\"hljs-variable\">props<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Properties<\/span>();\r\n      props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, kafkaServers);\r\n      props.put(ConsumerConfig.GROUP_ID_CONFIG, <span class=\"hljs-string\">\"my-consumer-group\"<\/span>);\r\n      props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getName());\r\n      props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getName());\r\n\r\n      <span class=\"hljs-comment\">\/\/ \u521b\u5efaKafkaConsumer\u5b9e\u4f8b<\/span>\r\n      Consumer&lt;String, String&gt; consumer = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">KafkaConsumer<\/span>&lt;&gt;(props);\r\n\r\n      <span class=\"hljs-comment\">\/\/ \u8ba2\u9605topic<\/span>\r\n      consumer.subscribe(Arrays.asList(<span class=\"hljs-string\">\"my-topic\"<\/span>));\r\n\r\n      <span class=\"hljs-comment\">\/\/ \u6d88\u8d39\u6d88\u606f<\/span>\r\n      <span class=\"hljs-comment\">\/\/ ...<\/span>\r\n\r\n      <span class=\"hljs-comment\">\/\/ \u5173\u95edKafkaConsumer<\/span>\r\n      consumer.close();\r\n   }\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u4f8b\u3067\u306f\u3001kafkaServers\u3001GROUP_ID_CONFIG\u3001\u304a\u3088\u3073subscribe\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u5024\u3092\u5b9f\u969b\u306e\u72b6\u6cc1\u306b\u5408\u308f\u305b\u3066\u7f6e\u304d\u63db\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002kafkaServers\u306fKafka\u30af\u30e9\u30b9\u30bf\u30fc\u306e\u30a2\u30c9\u30ec\u30b9\u3067\u3042\u308a\u3001GROUP_ID_CONFIG\u306f\u6d88\u8cbb\u8005\u30b0\u30eb\u30fc\u30d7\u306eID\u3067\u3042\u308a\u3001subscribe\u306f\u8cfc\u8aad\u3059\u308b\u30c8\u30d4\u30c3\u30af\u540d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p>\u6ce8\u610f\uff1a\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u4f8b\u306f\u30c7\u30e2\u3068\u3057\u3066\u306e\u307f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5b9f\u969b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30b7\u30ea\u30a2\u30e9\u30a4\u30b6\u3001\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u306e\u4f4d\u7f6e\u306a\u3069\u3001\u3088\u308a\u591a\u304f\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5177\u4f53\u7684\u306a\u8a2d\u5b9a\u306f\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u6c7a\u5b9a\u3055\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kafka\u30af\u30e9\u30b9\u30bf\u30fc\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306b\u306f\u3001Java\u3067\u6b21\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u3002 \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306epom.xml\u30d5\u30a1\u30a4\u30eb\u306bKafka\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002 &lt;dependency&gt; &lt;group [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-30037","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java\u3067Kafka\u30af\u30e9\u30b9\u30bf\u306b\u63a5\u7d9a\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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