{"id":183778,"date":"2024-11-10T07:39:26","date_gmt":"2024-11-09T23:39:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183778\/"},"modified":"2024-11-10T07:39:27","modified_gmt":"2024-11-09T23:39:27","slug":"%e4%bd%bf%e7%94%a8kafka%e7%99%bc%e9%80%81on%e5%88%b0%e6%95%b8%e6%93%9a%e5%ba%ab-kafka-%e7%99%bc%e9%80%81json%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183778\/","title":{"rendered":"\u4f7f\u7528Kafka\u767c\u9001ON\u5230\u6578\u64da\u5eab (kafka \u767c\u9001json\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8kafka%e7%99%bc%e9%80%81on%e5%88%b0%e6%95%b8%e6%93%9a%e5%ba%ab-kafka-%e7%99%bc%e9%80%81json%e6%95%b8%e6%93%9a%e5%ba%ab-peZLJBVvwr\">\u4f7f\u7528Kafka\u767c\u9001ON\u5230\u6578\u64da\u5eab (Kafka \u767c\u9001JSON\u6578\u64da\u5eab)<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u5be6\u6642\u6578\u64da\u8655\u7406\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002Apache Kafka\u4f5c\u70ba\u4e00\u500b\u5206\u4f48\u5f0f\u6d41\u5a92\u9ad4\u5e73\u53f0\uff0c\u80fd\u5920\u9ad8\u6548\u5730\u8655\u7406\u548c\u50b3\u8f38\u5927\u91cf\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Kafka\u5c07JSON\u6578\u64da\u767c\u9001\u5230\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afapache-kafka%ef%bc%9f-peZLJBVvwr\">\u4ec0\u9ebc\u662fApache Kafka\uff1f<\/h2>\n<p>Apache Kafka\u662f\u4e00\u500b\u958b\u6e90\u7684\u6d41\u5a92\u9ad4\u5e73\u53f0\uff0c\u4e3b\u8981\u7528\u65bc\u69cb\u5efa\u5be6\u6642\u6578\u64da\u7ba1\u9053\u548c\u6d41\u61c9\u7528\u3002\u5b83\u7684\u6838\u5fc3\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u541e\u5410\u91cf\uff1a<\/strong>Kafka\u80fd\u5920\u8655\u7406\u6bcf\u79d2\u6578\u767e\u842c\u689d\u6d88\u606f\uff0c\u9069\u5408\u5927\u898f\u6a21\u6578\u64da\u8655\u7406\u3002<\/li>\n<li><strong>\u6301\u4e45\u6027\uff1a<\/strong>Kafka\u5c07\u6578\u64da\u6301\u4e45\u5316\u5230\u78c1\u789f\uff0c\u78ba\u4fdd\u6578\u64da\u4e0d\u6703\u4e1f\u5931\u3002<\/li>\n<li><strong>\u53ef\u64f4\u5c55\u6027\uff1a<\/strong>Kafka\u53ef\u4ee5\u8f15\u9b06\u5730\u64f4\u5c55\uff0c\u652f\u6301\u591a\u500b\u751f\u7522\u8005\u548c\u6d88\u8cbb\u8005\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87json%e6%a0%bc%e5%bc%8f%ef%bc%9f-peZLJBVvwr\">\u70ba\u4ec0\u9ebc\u9078\u64c7JSON\u683c\u5f0f\uff1f<\/h2>\n<p>JSON\uff08JavaScript Object Notation\uff09\u662f\u4e00\u7a2e\u8f15\u91cf\u7d1a\u7684\u6578\u64da\u4ea4\u63db\u683c\u5f0f\uff0c\u6613\u65bc\u4eba\u985e\u95b1\u8b80\u548c\u7de8\u5beb\uff0c\u540c\u6642\u4e5f\u6613\u65bc\u6a5f\u5668\u89e3\u6790\u548c\u751f\u6210\u3002\u4f7f\u7528JSON\u683c\u5f0f\u7684\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u7d50\u69cb\u5316\u6578\u64da\uff1a<\/strong>JSON\u80fd\u5920\u4ee5\u9375\u503c\u5c0d\u7684\u5f62\u5f0f\u7d44\u7e54\u6578\u64da\uff0c\u4fbf\u65bc\u7406\u89e3\u548c\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u8a9e\u8a00\u7368\u7acb\u6027\uff1a<\/strong>JSON\u683c\u5f0f\u88ab\u591a\u7a2e\u7de8\u7a0b\u8a9e\u8a00\u5ee3\u6cdb\u652f\u6301\uff0c\u65b9\u4fbf\u4e0d\u540c\u7cfb\u7d71\u4e4b\u9593\u7684\u6578\u64da\u4ea4\u63db\u3002<\/li>\n<\/ul>\n<h2 id=\"kafka%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%9e%b6%e6%a7%8b-peZLJBVvwr\">Kafka\u7684\u57fa\u672c\u67b6\u69cb<\/h2>\n<p>Kafka\u7684\u67b6\u69cb\u4e3b\u8981\u7531\u4ee5\u4e0b\u5e7e\u500b\u7d44\u4ef6\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><strong>\u751f\u7522\u8005\uff08Producer\uff09\uff1a<\/strong>\u8ca0\u8cac\u5c07\u6578\u64da\u767c\u9001\u5230Kafka\u4e3b\u984c\u3002<\/li>\n<li><strong>\u6d88\u8cbb\u8005\uff08Consumer\uff09\uff1a<\/strong>\u8ca0\u8cac\u5f9eKafka\u4e3b\u984c\u4e2d\u8b80\u53d6\u6578\u64da\u3002<\/li>\n<li><strong>\u4e3b\u984c\uff08Topic\uff09\uff1a<\/strong>\u6578\u64da\u7684\u5206\u985e\uff0c\u751f\u7522\u8005\u5c07\u6578\u64da\u767c\u9001\u5230\u7279\u5b9a\u7684\u4e3b\u984c\u3002<\/li>\n<li><strong>\u4ee3\u7406\uff08Broker\uff09\uff1a<\/strong>Kafka\u96c6\u7fa4\u4e2d\u7684\u4f3a\u670d\u5668\uff0c\u8ca0\u8cac\u5b58\u5132\u548c\u7ba1\u7406\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%b0%87json%e6%95%b8%e6%93%9a%e7%99%bc%e9%80%81%e5%88%b0%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%ad%a5%e9%a9%9f-peZLJBVvwr\">\u5c07JSON\u6578\u64da\u767c\u9001\u5230\u6578\u64da\u5eab\u7684\u6b65\u9a5f<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528Kafka\u5c07JSON\u6578\u64da\u767c\u9001\u5230\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e7%bd%aekafka%e7%92%b0%e5%a2%83-peZLJBVvwr\">1. \u8a2d\u7f6eKafka\u74b0\u5883<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u5b89\u88dd\u548c\u914d\u7f6eKafka\u3002\u53ef\u4ee5\u53c3\u8003\u5b98\u65b9\u6587\u6a94\u9032\u884c\u5b89\u88dd\u3002\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u555f\u52d5Kafka\u670d\u52d9\u5668\u548cZookeeper\u3002<\/p>\n<h3 id=\"2-%e5%89%b5%e5%bb%bakafka%e4%b8%bb%e9%a1%8c-peZLJBVvwr\">2. \u5275\u5efaKafka\u4e3b\u984c<\/h3>\n<pre><code>bin\/kafka-topics.sh --create --topic json-data --bootstrap-server localhost:9092 --partitions 1 --replication-factor 1<\/code><\/pre>\n<h3 id=\"3-%e7%b7%a8%e5%af%ab%e7%94%9f%e7%94%a2%e8%80%85%e4%bb%a3%e7%a2%bc-peZLJBVvwr\">3. \u7de8\u5beb\u751f\u7522\u8005\u4ee3\u78bc<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Java\u7de8\u5beb\u7684Kafka\u751f\u7522\u8005\u793a\u4f8b\uff0c\u5c07JSON\u6578\u64da\u767c\u9001\u5230Kafka\u4e3b\u984c\uff1a<\/p>\n<pre><code>import org.apache.kafka.clients.producer.KafkaProducer;\nimport org.apache.kafka.clients.producer.ProducerRecord;\nimport org.apache.kafka.clients.producer.RecordMetadata;\nimport org.apache.kafka.clients.producer.Callback;\n\nimport java.util.Properties;\n\npublic class JsonProducer {\n    public static void main(String[] args) {\n        Properties props = new Properties();\n        props.put(\"bootstrap.servers\", \"localhost:9092\");\n        props.put(\"key.serializer\", \"org.apache.kafka.common.serialization.StringSerializer\");\n        props.put(\"value.serializer\", \"org.apache.kafka.common.serialization.StringSerializer\");\n\n        KafkaProducer producer = new KafkaProducer(props);\n        String jsonData = \"{\"name\":\"John\", \"age\":30}\";\n\n        ProducerRecord record = new ProducerRecord(\"json-data\", jsonData);\n        producer.send(record, new Callback() {\n            public void onCompletion(RecordMetadata metadata, Exception exception) {\n                if (exception != null) {\n                    exception.printStackTrace();\n                } else {\n                    System.out.println(\"Sent message: \" + jsonData + \" to topic: \" + metadata.topic());\n                }\n            }\n        });\n\n        producer.close();\n    }\n}<\/code><\/pre>\n<h3 id=\"4-%e7%b7%a8%e5%af%ab%e6%b6%88%e8%b2%bb%e8%80%85%e4%bb%a3%e7%a2%bc-peZLJBVvwr\">4. \u7de8\u5beb\u6d88\u8cbb\u8005\u4ee3\u78bc<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u60a8\u9700\u8981\u7de8\u5beb\u6d88\u8cbb\u8005\u4ee3\u78bc\u4f86\u5f9eKafka\u4e3b\u984c\u4e2d\u8b80\u53d6JSON\u6578\u64da\u4e26\u5c07\u5176\u5b58\u5132\u5230\u6578\u64da\u5eab\u4e2d\uff1a<\/p>\n<pre><code>import org.apache.kafka.clients.consumer.ConsumerConfig;\nimport org.apache.kafka.clients.consumer.ConsumerRecord;\nimport org.apache.kafka.clients.consumer.KafkaConsumer;\n\nimport java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.PreparedStatement;\nimport java.util.Collections;\nimport java.util.Properties;\n\npublic class JsonConsumer {\n    public static void main(String[] args) {\n        Properties props = new Properties();\n        props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, \"localhost:9092\");\n        props.put(ConsumerConfig.GROUP_ID_CONFIG, \"json-consumer-group\");\n        props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, \"org.apache.kafka.common.serialization.StringDeserializer\");\n        props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, \"org.apache.kafka.common.serialization.StringDeserializer\");\n\n        KafkaConsumer consumer = new KafkaConsumer(props);\n        consumer.subscribe(Collections.singletonList(\"json-data\"));\n\n        try {\n            Connection connection = DriverManager.getConnection(\"jdbc:mysql:\/\/localhost:3306\/yourdatabase\", \"username\", \"password\");\n            String sql = \"INSERT INTO yourtable (data) VALUES (?)\";\n            PreparedStatement statement = connection.prepareStatement(sql);\n\n            while (true) {\n                for (ConsumerRecord record : consumer.poll(100).records(\"json-data\")) {\n                    statement.setString(1, record.value());\n                    statement.executeUpdate();\n                    System.out.println(\"Inserted data: \" + record.value());\n                }\n            }\n        } catch (Exception e) {\n            e.printStackTrace();\n        } finally {\n            consumer.close();\n        }\n    }\n}<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-peZLJBVvwr\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528Kafka\u5c07JSON\u6578\u64da\u767c\u9001\u5230\u6578\u64da\u5eab\u662f\u4e00\u500b\u9ad8\u6548\u4e14\u9748\u6d3b\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u8a2d\u7f6eKafka\u74b0\u5883\u3001\u5275\u5efa\u4e3b\u984c\u3001\u7de8\u5beb\u751f\u7522\u8005\u548c\u6d88\u8cbb\u8005\u4ee3\u78bc\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5be6\u73fe\u5be6\u6642\u6578\u64da\u8655\u7406\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u8655\u7406\u7684\u6548\u7387\uff0c\u9084\u80fd\u5920\u61c9\u5c0d\u5927\u898f\u6a21\u6578\u64da\u6d41\u7684\u6311\u6230\u3002\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u4f3a\u670d\u5668\u4f86\u904b\u884c\u60a8\u7684Kafka\u61c9\u7528\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u696d\u52d9\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528Kafka\u5c07JSON\u6578\u64da\u767c\u9001\u5230\u6578\u64da\u5eab\uff0c\u5be6\u73fe\u9ad8\u6548\u6578\u64da\u6d41\u8f49\u8207\u5be6\u6642\u8655\u7406\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-183778","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183778","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=183778"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183778\/revisions"}],"predecessor-version":[{"id":183779,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183778\/revisions\/183779"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}