{"id":97031,"date":"2024-03-21T21:28:43","date_gmt":"2024-03-21T12:28:43","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7kafka%e3%83%a1%e3%83%83%e3%82%bb%e3%83%bc%e3%82%b8%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af%e3%81%a9%e3%81%86%e3%81%97%e3%81%be%e3%81%99%e3%81%8b%e3%80%82\/"},"modified":"2024-03-28T01:40:03","modified_gmt":"2024-03-27T16:40:03","slug":"java%e3%81%a7kafka%e3%83%a1%e3%83%83%e3%82%bb%e3%83%bc%e3%82%b8%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af%e3%81%a9%e3%81%86%e3%81%97%e3%81%be%e3%81%99%e3%81%8b%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7kafka%e3%83%a1%e3%83%83%e3%82%bb%e3%83%bc%e3%82%b8%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af%e3%81%a9%e3%81%86%e3%81%97%e3%81%be%e3%81%99%e3%81%8b%e3%80%82\/","title":{"rendered":"Java\u3067Kafka\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u3069\u3046\u3057\u307e\u3059\u304b\u3002"},"content":{"rendered":"<p>Java\u3067Kafka\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3059\u308b\u306b\u306f\u3001Kafka\u306eJava\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u822c\u7684\u306aKafka\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u53d7\u4fe1\u65b9\u6cd5\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u307e\u305a\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306bApache Kafka\u306e\u516c\u5f0f\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\u3084Spring Kafka\u306a\u3069\u306eKafka\u306eJava \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u78ba\u5b9f\u306b\u5c0e\u5165\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>Kafka\u306e\u30a2\u30c9\u30ec\u30b9\u3001\u30dd\u30fc\u30c8\u7b49\u306eKafka\u30af\u30e9\u30b9\u30bf\u30fc\u306e\u63a5\u7d9a\u8a2d\u5b9a\u3092\u884c\u3044\u3001Kafka\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>Properties props = new Properties();<br \/>\nprops.put(&#8220;bootstrap.servers&#8221;, &#8220;kafka1:9092,kafka2:9092&#8221;); \/\/ \u30ab\u30d5\u30ab\u96c6\u7fa4\u306e\u30a2\u30c9\u30ec\u30b9\u3068\u30dd\u30fc\u30c8<br \/>\nprops.put(&#8220;group.id&#8221;, &#8220;group1&#8221;); \/\/ \u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u30b0\u30eb\u30fc\u30d7\u306eID<br \/>\nprops.put(&#8220;auto.offset.reset&#8221;, &#8220;latest&#8221;); \/\/ \u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u304c\u6700\u65b0\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u304b\u3089\u6d88\u8cbb\u3092\u958b\u59cb<br \/>\nprops.put(&#8220;key.deserializer&#8221;, &#8220;org.apache.kafka.common.serialization.StringDeserializer&#8221;);<br \/>\nprops.put(&#8220;value.deserializer&#8221;, &#8220;org.apache.kafka.common.serialization.StringDeserializer&#8221;);KafkaConsumer&lt;String, String&gt; consumer = new KafkaConsumer&lt;&gt;(props);<\/li>\n<li>Kafka \u306e\u30c8\u30d4\u30c3\u30af\u3092 1 \u3064\u4ee5\u4e0a\u30b5\u30d6\u30b9\u30af\u30e9\u30a4\u30d6\u3057\u307e\u3059\u3002<\/li>\n<li>\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc.\u30b5\u30d6\u30b9\u30af\u30e9\u30a4\u30d6(Arrays.asList(&#8220;topic1&#8221;, &#8220;topic2&#8221;)); \/\/ \u30c8\u30d4\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u8cfc\u8aad<\/li>\n<li>\u30eb\u30fc\u30d7\u5185\u3067Kafka\u304b\u3089\u7d99\u7d9a\u7684\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u30d7\u30eb\u3057\u3066\u51e6\u7406\u3057\u307e\u3059\u3002<\/li>\n<li>while (true) {<br \/>\nConsumerRecords&lt;String, String&gt; records = consumer.poll(Duration.ofMillis(100)); \/\/ Kafka\u304b\u3089\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d6\u5f97<br \/>\nfor (ConsumerRecord&lt;String, String&gt; record : records) {<br \/>\nString topic = record.topic();<br \/>\nint partition = record.partition();<br \/>\nlong offset = record.offset();<br \/>\nString key = record.key();<br \/>\nString value = record.value();\/\/ \u53d7\u4fe1\u3057\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u51e6\u7406<br \/>\nSystem.out.printf(&#8220;\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u3051\u53d6\u308a\u307e\u3057\u305f: \u30c8\u30d4\u30c3\u30af = %s, \u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3 = %d, \u30aa\u30d5\u30bb\u30c3\u30c8 = %d, \u30ad\u30fc = %s, \u5024 = %s\\n&#8221;,<br \/>\ntopic, partition, offset, key, value);<br \/>\n}<br \/>\n}<\/li>\n<li>\u5b9f\u969b\u5229\u7528\u3059\u308b\u969b\u306b\u306f\u3001\u5404\u7a2e\u4f8b\u5916\u51e6\u7406\u306b\u6ce8\u610f\u3057\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u7d42\u4e86\u6642\u306b\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u3092\u78ba\u5b9f\u306b\u9589\u3058\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/ol>\n<p>\u4e0a\u8a18\u306e\u624b\u9806\u3067\u3001Java\u3067Kafka\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u3067Kafka\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3059\u308b\u306b\u306f\u3001Kafka\u306eJava\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u822c\u7684\u306aKafka\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u53d7\u4fe1\u65b9\u6cd5\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002 \u307e\u305a\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306bApache Kafka\u306e\u516c [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-97031","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\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u3069\u3046\u3057\u307e\u3059\u304b\u3002 - 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\" 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