{"id":62187,"date":"2024-10-13T16:54:17","date_gmt":"2024-10-13T08:54:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/62187\/"},"modified":"2024-10-13T16:54:17","modified_gmt":"2024-10-13T08:54:17","slug":"kafka%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e8%87%aa%e5%8b%95%e5%af%ab%e5%85%a5%e7%9a%84%e9%ab%98%e6%95%88%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-kafk","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/62187\/","title":{"rendered":"Kafka\u9023\u63a5\u6578\u64da\u5eab\uff1a\u5be6\u73fe\u6578\u64da\u81ea\u52d5\u5beb\u5165\u7684\u9ad8\u6548\u89e3\u6c7a\u65b9\u6848 (kafka\u6578\u64da\u5beb\u5230\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"kafka%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e8%87%aa%e5%8b%95%e5%af%ab%e5%85%a5%e7%9a%84%e9%ab%98%e6%95%88%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-cwaTDQObCs\">Kafka\u9023\u63a5\u6578\u64da\u5eab\uff1a\u5be6\u73fe\u6578\u64da\u81ea\u52d5\u5beb\u5165\u7684\u9ad8\u6548\u89e3\u6c7a\u65b9\u6848<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u4f01\u696d\u9700\u8981\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u548c\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u3002Apache Kafka\u4f5c\u70ba\u4e00\u500b\u5206\u4f48\u5f0f\u6d41\u5a92\u9ad4\u5e73\u53f0\uff0c\u5df2\u7d93\u6210\u70ba\u8a31\u591a\u4f01\u696d\u7684\u9996\u9078\u3002\u5b83\u4e0d\u50c5\u80fd\u5920\u8655\u7406\u5927\u91cf\u7684\u6578\u64da\u6d41\uff0c\u9084\u80fd\u5920\u8207\u5404\u7a2e\u6578\u64da\u5eab\u9032\u884c\u7121\u7e2b\u96c6\u6210\uff0c\u5be6\u73fe\u6578\u64da\u7684\u81ea\u52d5\u5beb\u5165\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Kafka\u5c07\u6578\u64da\u5beb\u5165\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-cwaTDQObCs\">\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\u7279\u6027\u5305\u62ec\u9ad8\u541e\u5410\u91cf\u3001\u53ef\u64f4\u5c55\u6027\u548c\u5bb9\u932f\u6027\u3002Kafka\u7684\u67b6\u69cb\u7531\u751f\u7522\u8005\u3001\u6d88\u8cbb\u8005\u548c\u4ee3\u7406\u7d44\u6210\uff0c\u751f\u7522\u8005\u8ca0\u8cac\u5c07\u6578\u64da\u767c\u9001\u5230Kafka\u4e3b\u984c\uff0c\u6d88\u8cbb\u8005\u5247\u5f9e\u4e3b\u984c\u4e2d\u8b80\u53d6\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87kafka%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f-cwaTDQObCs\">\u70ba\u4ec0\u9ebc\u9078\u64c7Kafka\u9023\u63a5\u6578\u64da\u5eab\uff1f<\/h2>\n<p>\u4f7f\u7528Kafka\u9023\u63a5\u6578\u64da\u5eab\u7684\u4e3b\u8981\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u5be6\u6642\u6578\u64da\u8655\u7406\uff1a<\/strong>Kafka\u80fd\u5920\u5be6\u6642\u8655\u7406\u6578\u64da\u6d41\uff0c\u78ba\u4fdd\u6578\u64da\u80fd\u5920\u5373\u6642\u5beb\u5165\u6578\u64da\u5eab\u3002<\/li>\n<li><strong>\u9ad8\u53ef\u7528\u6027\uff1a<\/strong>Kafka\u7684\u5206\u4f48\u5f0f\u67b6\u69cb\u78ba\u4fdd\u4e86\u6578\u64da\u7684\u9ad8\u53ef\u7528\u6027\u548c\u6301\u4e45\u6027\u3002<\/li>\n<li><strong>\u89e3\u8026\u5408\uff1a<\/strong>\u751f\u7522\u8005\u548c\u6d88\u8cbb\u8005\u4e4b\u9593\u7684\u89e3\u8026\u5408\u4f7f\u5f97\u7cfb\u7d71\u66f4\u52a0\u9748\u6d3b\uff0c\u4fbf\u65bc\u64f4\u5c55\u548c\u7dad\u8b77\u3002<\/li>\n<\/ul>\n<h2 id=\"kafka%e8%88%87%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e9%9b%86%e6%88%90%e6%96%b9%e5%bc%8f-cwaTDQObCs\">Kafka\u8207\u6578\u64da\u5eab\u7684\u96c6\u6210\u65b9\u5f0f<\/h2>\n<p>\u5c07Kafka\u8207\u6578\u64da\u5eab\u96c6\u6210\u7684\u5e38\u898b\u65b9\u6cd5\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<ul>\n<li><strong>Kafka Connect\uff1a<\/strong>Kafka Connect\u662f\u4e00\u500b\u7528\u65bc\u7c21\u5316\u6578\u64da\u6e90\u548c\u6578\u64da\u63a5\u6536\u5668\u4e4b\u9593\u7684\u9023\u63a5\u7684\u5de5\u5177\u3002\u5b83\u63d0\u4f9b\u4e86\u591a\u7a2e\u9023\u63a5\u5668\uff0c\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u6578\u64da\u5beb\u5165\u5404\u7a2e\u6578\u64da\u5eab\u3002<\/li>\n<li><strong>\u81ea\u5b9a\u7fa9\u6d88\u8cbb\u8005\uff1a<\/strong>\u958b\u767c\u81ea\u5b9a\u7fa9\u7684Kafka\u6d88\u8cbb\u8005\uff0c\u5f9eKafka\u4e3b\u984c\u4e2d\u8b80\u53d6\u6578\u64da\u4e26\u5c07\u5176\u5beb\u5165\u6578\u64da\u5eab\u3002<\/li>\n<\/ul>\n<h3 id=\"%e4%bd%bf%e7%94%a8kafka-connect%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab-cwaTDQObCs\">\u4f7f\u7528Kafka Connect\u9023\u63a5\u6578\u64da\u5eab<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528Kafka Connect\u5c07\u6578\u64da\u5beb\u5165MySQL\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<pre><code>\n1. \u5b89\u88ddKafka Connect\u3002\n2. \u914d\u7f6eMySQL\u9023\u63a5\u5668\u3002\n3. \u5275\u5efa\u4e00\u500b\u9023\u63a5\u5668\u914d\u7f6e\u6587\u4ef6\uff0c\u4f8b\u5982mysql-sink.properties\uff1a\n<\/code><\/pre>\n<pre><code>\nname=mysql-sink\nconnector.class=io.confluent.connect.jdbc.JdbcSinkConnector\ntasks.max=1\ntopics=my-topic\nconnection.url=jdbc:mysql:\/\/localhost:3306\/mydb\nconnection.user=myuser\nconnection.password=mypassword\nauto.create=true\n<\/code><\/pre>\n<p>4. \u555f\u52d5Kafka Connect\u4e26\u52a0\u8f09\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<pre><code>\nbin\/connect-standalone.sh config\/connect-standalone.properties config\/mysql-sink.properties\n<\/code><\/pre>\n<h3 id=\"%e8%87%aa%e5%ae%9a%e7%be%a9%e6%b6%88%e8%b2%bb%e8%80%85%e7%a4%ba%e4%be%8b-cwaTDQObCs\">\u81ea\u5b9a\u7fa9\u6d88\u8cbb\u8005\u793a\u4f8b<\/h3>\n<p>\u5982\u679c\u9700\u8981\u66f4\u9ad8\u7684\u9748\u6d3b\u6027\uff0c\u53ef\u4ee5\u7de8\u5beb\u81ea\u5b9a\u7fa9\u7684Kafka\u6d88\u8cbb\u8005\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Java\u793a\u4f8b\uff1a<\/p>\n<pre><code>\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 MySQLConsumer {\n    public static void main(String[] args) {\n        Properties props = new Properties();\n        props.put(\"bootstrap.servers\", \"localhost:9092\");\n        props.put(\"group.id\", \"test\");\n        props.put(\"key.deserializer\", \"org.apache.kafka.common.serialization.StringDeserializer\");\n        props.put(\"value.deserializer\", \"org.apache.kafka.common.serialization.StringDeserializer\");\n\n        KafkaConsumer consumer = new KafkaConsumer(props);\n        consumer.subscribe(Collections.singletonList(\"my-topic\"));\n\n        try (Connection conn = DriverManager.getConnection(\"jdbc:mysql:\/\/localhost:3306\/mydb\", \"myuser\", \"mypassword\")) {\n            while (true) {\n                for (ConsumerRecord record : consumer.poll(100).records(\"my-topic\")) {\n                    String sql = \"INSERT INTO my_table (data) VALUES (?)\";\n                    try (PreparedStatement pstmt = conn.prepareStatement(sql)) {\n                        pstmt.setString(1, record.value());\n                        pstmt.executeUpdate();\n                    }\n                }\n            }\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cwaTDQObCs\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4f7f\u7528Apache Kafka\u9023\u63a5\u6578\u64da\u5eab\uff0c\u4f01\u696d\u53ef\u4ee5\u5be6\u73fe\u9ad8\u6548\u7684\u6578\u64da\u81ea\u52d5\u5beb\u5165\u89e3\u6c7a\u65b9\u6848\u3002\u7121\u8ad6\u662f\u4f7f\u7528Kafka Connect\u9084\u662f\u81ea\u5b9a\u7fa9\u6d88\u8cbb\u8005\uff0c\u9019\u4e9b\u65b9\u6cd5\u90fd\u80fd\u5920\u5e6b\u52a9\u4f01\u696d\u5be6\u6642\u8655\u7406\u548c\u5b58\u5132\u6578\u64da\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u8655\u7406\u67b6\u69cb\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u9700\u6c42\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\u642d\u5efa\u60a8\u7684Kafka\u74b0\u5883\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u9ad8\u6548\u6d41\u901a\u548c\u5b58\u5132\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Kafka\u9023\u63a5\u6578\u64da\u5eab\u7684\u9ad8\u6548\u89e3\u6c7a\u65b9\u6848\uff0c\u5be6\u73fe\u6578\u64da\u81ea\u52d5\u5beb\u5165\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u8207\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-62187","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62187","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=62187"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62187\/revisions"}],"predecessor-version":[{"id":62188,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62187\/revisions\/62188"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=62187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=62187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=62187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}