{"id":113040,"date":"2024-03-22T20:51:00","date_gmt":"2024-03-22T11:51:00","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%abkafka%e3%81%8c%e3%83%90%e3%82%a4%e3%83%8a%e3%83%aa%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%92%e4%bc%9d%e9%80%81%e3%81%99%e3%82%8b%e3%81%8b\/"},"modified":"2024-04-04T06:21:01","modified_gmt":"2024-04-03T21:21:01","slug":"%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%abkafka%e3%81%8c%e3%83%90%e3%82%a4%e3%83%8a%e3%83%aa%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%92%e4%bc%9d%e9%80%81%e3%81%99%e3%82%8b%e3%81%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%abkafka%e3%81%8c%e3%83%90%e3%82%a4%e3%83%8a%e3%83%aa%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%92%e4%bc%9d%e9%80%81%e3%81%99%e3%82%8b%e3%81%8b\/","title":{"rendered":"\u3069\u306e\u3088\u3046\u306bkafka\u304c\u30d0\u30a4\u30ca\u30ea\u30d5\u30a1\u30a4\u30eb\u3092\u4f1d\u9001\u3059\u308b\u304b"},"content":{"rendered":"<p>\u30ab\u30d5\u30ab\u306f\u3001\u4e3b\u306b\u9ad8\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u306b\u4f7f\u7528\u3055\u308c\u308b\u5206\u6563\u30e1\u30c3\u30bb\u30fc\u30b8\u30ad\u30e5\u30fc\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002\u30d0\u30a4\u30ca\u30ea\u30d5\u30a1\u30a4\u30eb\u3092\u9001\u4fe1\u3059\u308b\u306b\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30d0\u30a4\u30c8\u914d\u5217\u306b\u5909\u63db\u3057\u3001Producer API \u3092\u4f7f\u7528\u3057\u3066\u30d0\u30a4\u30c8\u914d\u5217\u3092\u30ab\u30d5\u30ab\u306e\u30c8\u30d4\u30c3\u30af\u306b\u9001\u4fe1\u3057\u307e\u3059\u3002\u6b21\u306b\u3001Consumer API \u3092\u4f7f\u7528\u3057\u3066\u30ab\u30d5\u30ab\u306e\u30c8\u30d4\u30c3\u30af\u304b\u3089\u30d0\u30a4\u30c8\u914d\u5217\u3092\u53d7\u4fe1\u3057\u3066\u30d0\u30a4\u30ca\u30ea\u30d5\u30a1\u30a4\u30eb\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306bJava\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<p>\u30d7\u30ed\u30c7\u30e5\u30fc\u30b5\u30fc\u5074\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> org.apache.kafka.clients.producer.*;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.File;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.FileInputStream;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.IOException;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">FileProducer<\/span> {\r\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">final<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">TOPIC<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"binary-files-topic\"<\/span>;\r\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">final<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">BOOTSTRAP_SERVERS<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"localhost:9092\"<\/span>;\r\n\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> <span class=\"hljs-keyword\">throws<\/span> IOException {\r\n        <span class=\"hljs-comment\">\/\/ \u8bfb\u53d6\u4e8c\u8fdb\u5236\u6587\u4ef6<\/span>\r\n        <span class=\"hljs-type\">File<\/span> <span class=\"hljs-variable\">file<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">File<\/span>(<span class=\"hljs-string\">\"path_to_file\"<\/span>);\r\n        <span class=\"hljs-type\">byte<\/span>[] data = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">byte<\/span>[(<span class=\"hljs-type\">int<\/span>)file.length()];\r\n        <span class=\"hljs-type\">FileInputStream<\/span> <span class=\"hljs-variable\">fis<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">FileInputStream<\/span>(file);\r\n        fis.read(data);\r\n        fis.close();\r\n\r\n        <span class=\"hljs-comment\">\/\/ Kafka Producer\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, BOOTSTRAP_SERVERS);\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.ByteArraySerializer\"<\/span>);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u521b\u5efaProducer<\/span>\r\n        Producer&lt;String, <span class=\"hljs-type\">byte<\/span>[]&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        ProducerRecord&lt;String, <span class=\"hljs-type\">byte<\/span>[]&gt; record = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ProducerRecord<\/span>&lt;&gt;(TOPIC, <span class=\"hljs-string\">\"key\"<\/span>, data);\r\n        producer.send(record, <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Callback<\/span>() {\r\n            <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">onCompletion<\/span><span class=\"hljs-params\">(RecordMetadata metadata, Exception exception)<\/span> {\r\n                <span class=\"hljs-keyword\">if<\/span> (exception != <span class=\"hljs-literal\">null<\/span>) {\r\n                    exception.printStackTrace();\r\n                } <span class=\"hljs-keyword\">else<\/span> {\r\n                    System.out.println(<span class=\"hljs-string\">\"\u6d88\u606f\u53d1\u9001\u6210\u529f\uff0cTopic: \"<\/span> + metadata.topic() +\r\n                            <span class=\"hljs-string\">\", Partition: \"<\/span> + metadata.partition() +\r\n                            <span class=\"hljs-string\">\", Offset: \"<\/span> + metadata.offset());\r\n                }\r\n            }\r\n        });\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u5173\u95edProducer<\/span>\r\n        producer.close();\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u6d88\u8cbb\u8005\u5411\u3051<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> org.apache.kafka.clients.consumer.*;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.File;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.FileOutputStream;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.IOException;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">FileConsumer<\/span> {\r\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">final<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">TOPIC<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"binary-files-topic\"<\/span>;\r\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">final<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">BOOTSTRAP_SERVERS<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"localhost:9092\"<\/span>;\r\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">final<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">OUTPUT_FILE<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"path_to_output_file\"<\/span>;\r\n\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> <span class=\"hljs-keyword\">throws<\/span> IOException {\r\n        <span class=\"hljs-comment\">\/\/ Kafka Consumer\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, BOOTSTRAP_SERVERS);\r\n        props.put(ConsumerConfig.GROUP_ID_CONFIG, <span class=\"hljs-string\">\"binary-consumer-group\"<\/span>);\r\n        props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, <span class=\"hljs-string\">\"org.apache.kafka.common.serialization.StringDeserializer\"<\/span>);\r\n        props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, <span class=\"hljs-string\">\"org.apache.kafka.common.serialization.ByteArrayDeserializer\"<\/span>);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u521b\u5efaConsumer<\/span>\r\n        Consumer&lt;String, <span class=\"hljs-type\">byte<\/span>[]&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(Collections.singletonList(TOPIC));\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u63a5\u6536\u6d88\u606f<\/span>\r\n        ConsumerRecords&lt;String, <span class=\"hljs-type\">byte<\/span>[]&gt; records = consumer.poll(Duration.ofMillis(<span class=\"hljs-number\">1000<\/span>));\r\n        <span class=\"hljs-keyword\">for<\/span> (ConsumerRecord&lt;String, <span class=\"hljs-type\">byte<\/span>[]&gt; record : records) {\r\n            <span class=\"hljs-comment\">\/\/ \u5c06\u5b57\u8282\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u6587\u4ef6<\/span>\r\n            <span class=\"hljs-type\">File<\/span> <span class=\"hljs-variable\">outputFile<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">File<\/span>(OUTPUT_FILE);\r\n            <span class=\"hljs-type\">FileOutputStream<\/span> <span class=\"hljs-variable\">fos<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">FileOutputStream<\/span>(outputFile);\r\n            fos.write(record.value());\r\n            fos.close();\r\n            System.out.println(<span class=\"hljs-string\">\"\u63a5\u6536\u5230\u6d88\u606f\uff0cTopic: \"<\/span> + record.topic() +\r\n                    <span class=\"hljs-string\">\", Partition: \"<\/span> + record.partition() +\r\n                    <span class=\"hljs-string\">\", Offset: \"<\/span> + record.offset());\r\n        }\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u5173\u95edConsumer<\/span>\r\n        consumer.close();\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u30d1\u30b9\u30fb\u30c8\u30a5\u30fb\u30d5\u30a1\u30a4\u30eb\u3068\u30d1\u30b9\u30fb\u30c8\u30a5\u30fb\u30a2\u30a6\u30c8\u30d7\u30c3\u30c8\u30fb\u30d5\u30a1\u30a4\u30eb\u3092\u9069\u5207\u306a\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u306b\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u307e\u305f\u3001Kafka\u30b5\u30fc\u30d3\u30b9\u304c\u8d77\u52d5\u6e08\u307f\u3067\u3001\u30d0\u30a4\u30ca\u30ea\u30d5\u30a1\u30a4\u30eb\u306e\u30c8\u30d4\u30c3\u30af\u304c\u4f5c\u6210\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3082\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30ab\u30d5\u30ab\u306f\u3001\u4e3b\u306b\u9ad8\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u306b\u4f7f\u7528\u3055\u308c\u308b\u5206\u6563\u30e1\u30c3\u30bb\u30fc\u30b8\u30ad\u30e5\u30fc\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002\u30d0\u30a4\u30ca\u30ea\u30d5\u30a1\u30a4\u30eb\u3092\u9001\u4fe1\u3059\u308b\u306b\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30d0\u30a4\u30c8\u914d\u5217\u306b\u5909\u63db\u3057\u3001Producer API \u3092\u4f7f\u7528\u3057\u3066\u30d0\u30a4\u30c8\u914d\u5217\u3092\u30ab\u30d5\u30ab\u306e\u30c8\u30d4\u30c3\u30af\u306b\u9001\u4fe1\u3057 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-113040","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>\u3069\u306e\u3088\u3046\u306bkafka\u304c\u30d0\u30a4\u30ca\u30ea\u30d5\u30a1\u30a4\u30eb\u3092\u4f1d\u9001\u3059\u308b\u304b - 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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