{"id":122800,"date":"2026-11-05T17:34:13","date_gmt":"2026-11-05T09:34:13","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/122800.html"},"modified":"2026-11-05T17:34:13","modified_gmt":"2026-11-05T09:34:13","slug":"flink-%e5%ae%9e%e6%97%b6%e8%ae%a1%e7%ae%97%e5%ba%94%e7%94%a8%e5%9c%ba%e6%99%af%e4%b8%be%e4%be%8b%ef%bc%9a%e4%bb%8e%e5%ae%9e%e6%97%b6%e9%a3%8e%e6%8e%a7%e5%88%b0%e5%ae%9e%e6%97%b6%e6%95%b0%e4%bb%93","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/122800.html","title":{"rendered":"Flink \u5b9e\u65f6\u8ba1\u7b97\u5e94\u7528\u573a\u666f\u4e3e\u4f8b\uff1a\u4ece\u5b9e\u65f6\u98ce\u63a7\u5230\u5b9e\u65f6\u6570\u4ed3"},"content":{"rendered":"<p>        \/* MD \/ \u5bcc\u6587\u672c\u4e2d\u7684 .toc\uff08\u542b\u535a\u5ba2\u56ed\u642c\u5bb6\u7b49\u5d4c\u5957\u7ed3\u6784\uff09\uff1b.toc-box \u5728\u4fa7\u680f\uff0c\u4e0d\u53d7\u5f71\u54cd *\/<br \/>\n        #content_views .toc,<br \/>\n        \/* \u7f16\u8f91\u5668\u5e38\u5728\u76ee\u5f55\u524d\u540e\u63d2\u5165\u7a7a p\uff08:empty \u4ecd\u5360 20px\uff09\uff0c\u4e00\u5e76\u53bb\u6389\u907f\u514d\u9876\u7a7a\u9699 *\/<br \/>\n        #content_views.markdown_views &gt; p:empty:has(+ .toc),<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty,<br \/>\n        \/* \u5bcc\u6587\u672c\u65e7\u7248\u76ee\u5f55\u6807\u8bb0 *\/<br \/>\n        #content_views.htmledit_views #main-toc,<br \/>\n        #content_views.htmledit_views #hr-toc,<br \/>\n        #content_views.htmledit_views p[id*=\\&#8221;-toc\\&#8221;] {<br \/>\n          display: none !important;<br \/>\n        }<br \/>\n        \/* \u76ee\u5f55\u53bb\u6389\u540e\uff0c\u7d27\u8ddf\u7684\u9996\u4e2a\u6807\u9898\u4e0d\u518d\u591a\u51fa\u4e00\u5757\u4e0a\u8fb9\u8ddd *\/<br \/>\n        #content_views.markdown_views &gt; .toc + h1,<br \/>\n        #content_views.markdown_views &gt; .toc + h2,<br \/>\n        #content_views.markdown_views &gt; .toc + h3,<br \/>\n        #content_views.markdown_views &gt; .toc + h4,<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty + h1,<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty + h2,<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty + h3,<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty + h4 {<br \/>\n          margin-top: 0 !important;<br \/>\n        }<\/p>\n<h3>\u4e00\u3001\u4e3a\u4ec0\u4e48\u9700\u8981 Flink \u505a\u5b9e\u65f6\u8ba1\u7b97<\/h3>\n<p>\u4f20\u7edf\u79bb\u7ebf\u8ba1\u7b97\u4ee5\u5929\u6216\u5c0f\u65f6\u4e3a\u8c03\u5ea6\u5468\u671f&#xff0c;\u6570\u636e\u4ece\u4ea7\u751f\u5230\u4ea7\u51fa\u7ed3\u679c\u5f80\u5f80\u5b58\u5728\u660e\u663e\u5ef6\u8fdf\u3002\u800c\u4e1a\u52a1\u4fa7\u5bf9\u201c\u5b9e\u65f6\u6027\u201d\u7684\u8981\u6c42\u8d8a\u6765\u8d8a\u9ad8&#xff1a;\u98ce\u63a7\u8981\u5728\u6beb\u79d2\u7ea7\u62e6\u622a\u5f02\u5e38\u4ea4\u6613&#xff0c;\u63a8\u8350\u8981\u5728\u7528\u6237\u70b9\u51fb\u540e\u7acb\u523b\u8c03\u6574\u7ed3\u679c&#xff0c;\u76d1\u63a7\u8981\u5728\u6545\u969c\u53d1\u751f\u7684\u7b2c\u4e00\u65f6\u95f4\u544a\u8b66\u3002Flink \u4ee5\u4e8b\u4ef6\u9a71\u52a8\u3001\u4f4e\u5ef6\u8fdf\u3001\u9ad8\u541e\u5410\u3001Exactly-Once \u8bed\u4e49\u548c\u6d41\u6279\u4e00\u4f53\u4e3a\u6838\u5fc3\u7279\u6027&#xff0c;\u6210\u4e3a\u5b9e\u65f6\u8ba1\u7b97\u9886\u57df\u7684\u4e3b\u6d41\u5f15\u64ce\u3002<\/p>\n<p>\u4e0b\u9762\u7ed3\u5408\u51e0\u4e2a\u5178\u578b\u884c\u4e1a\u573a\u666f&#xff0c;\u8bf4\u660e Flink \u5b9e\u65f6\u8ba1\u7b97\u5230\u5e95\u80fd\u89e3\u51b3\u4ec0\u4e48\u95ee\u9898\u3002<\/p>\n<h3>\u4e8c\u3001\u573a\u666f\u4e00&#xff1a;\u5b9e\u65f6\u98ce\u63a7\u4e0e\u53cd\u6b3a\u8bc8<\/h3>\n<p>\u91d1\u878d\u3001\u652f\u4ed8\u3001\u7535\u5546\u5e73\u53f0\u90fd\u9700\u8981\u5728\u4ea4\u6613\u53d1\u751f\u7684\u77ac\u95f4\u5224\u65ad\u98ce\u9669\u3002\u5178\u578b\u9700\u6c42\u5305\u62ec&#xff1a;\u540c\u4e00\u8d26\u53f7\u77ed\u65f6\u95f4\u591a\u6b21\u767b\u5f55\u3001\u5f02\u5730\u5f02\u5e38\u4e0b\u5355\u3001\u5355\u5361\u9ad8\u9891\u5c0f\u989d\u652f\u4ed8\u3001\u8bbe\u5907\u6307\u7eb9\u5f02\u5e38\u805a\u96c6\u7b49\u3002<\/p>\n<h4>\u5b9e\u73b0\u601d\u8def<\/h4>\n<ul>\n<li>\u901a\u8fc7 Flink \u6d88\u8d39\u4ea4\u6613\u65e5\u5fd7\u3001\u767b\u5f55\u65e5\u5fd7\u3001\u8bbe\u5907\u57cb\u70b9\u7b49 Kafka \u6570\u636e\u6e90&#xff1b;<\/li>\n<li>\u4f7f\u7528 keyBy \u6309\u7528\u6237 ID \u6216\u8bbe\u5907 ID \u5206\u7ec4&#xff0c;\u7ed3\u5408 KeyedProcessFunction \u7ef4\u62a4\u7528\u6237\u72b6\u6001&#xff1b;<\/li>\n<li>\u4f7f\u7528\u6eda\u52a8\u7a97\u53e3\u6216\u6ed1\u52a8\u7a97\u53e3\u7edf\u8ba1\u201c\u6700\u8fd1 1 \u5206\u949f\u4ea4\u6613\u7b14\u6570\u201d\u201c\u6700\u8fd1 10 \u5206\u949f\u767b\u5f55\u57ce\u5e02\u6570\u201d\u7b49\u6307\u6807&#xff1b;<\/li>\n<li>\u89c4\u5219\u547d\u4e2d\u540e\u5199\u5165\u544a\u8b66 Topic \u6216\u8c03\u7528\u98ce\u63a7\u51b3\u7b56\u670d\u52a1&#xff0c;\u5b9e\u73b0\u6beb\u79d2\u7ea7\u62e6\u622a\u3002<\/li>\n<\/ul>\n<p>DataStream&lt;Transaction&gt; transactions &#061; env<br \/>\n    .addSource(new FlinkKafkaConsumer&lt;&gt;(&#034;tx-topic&#034;, new TransactionSchema(), props));<\/p>\n<p>transactions<br \/>\n    .keyBy(Transaction::getUserId)<br \/>\n    .window(TumblingEventTimeWindows.of(Time.minutes(1)))<br \/>\n    .aggregate(new CountAggregate())<br \/>\n    .filter(count -&gt; count &gt; 20)<br \/>\n    .addSink(new RiskAlertSink());<\/p>\n<p>\u76f8\u6bd4\u79bb\u7ebf\u8dd1\u6279&#xff0c;Flink \u65b9\u6848\u628a\u98ce\u9669\u8bc6\u522b\u4ece\u201cT&#043;1\u201d\u7f29\u77ed\u5230\u79d2\u7ea7\u751a\u81f3\u6beb\u79d2\u7ea7&#xff0c;\u663e\u8457\u964d\u4f4e\u8d44\u635f\u3002<\/p>\n<h3>\u4e09\u3001\u573a\u666f\u4e8c&#xff1a;\u5b9e\u65f6\u6570\u4ed3\u4e0e\u5b9e\u65f6\u5927\u5c4f<\/h3>\n<p>\u7535\u5546\u5927\u4fc3\u3001\u8fd0\u8425\u770b\u677f\u3001\u4e1a\u52a1\u76d1\u63a7\u5927\u5c4f\u90fd\u8981\u6c42\u6570\u636e\u201c\u79d2\u7ea7\u53ef\u89c1\u201d\u3002\u5178\u578b\u94fe\u8def\u662f&#xff1a;\u4e1a\u52a1\u5e93 Binlog \u2192 Kafka \u2192 Flink \u6e05\u6d17\u4e0e\u805a\u5408 \u2192 ClickHouse \/ Doris \/ HBase \u2192 BI \u5927\u5c4f\u3002<\/p>\n<h4>\u5173\u952e\u80fd\u529b<\/h4>\n<ul>\n<li>\u7ef4\u8868\u5173\u8054&#xff1a;\u901a\u8fc7 Lookup Join \u5173\u8054\u5546\u54c1\u3001\u95e8\u5e97\u3001\u7528\u6237\u7ef4\u5ea6\u8868&#xff0c;\u8865\u9f50\u5bbd\u8868\u5b57\u6bb5&#xff1b;<\/li>\n<li>\u591a\u6d41 Join&#xff1a;\u8ba2\u5355\u6d41\u4e0e\u652f\u4ed8\u6d41\u6309\u8ba2\u5355\u53f7\u505a\u53cc\u6d41 Join&#xff0c;\u8ba1\u7b97\u652f\u4ed8\u8f6c\u5316\u7387&#xff1b;<\/li>\n<li>\u5206\u5c42\u5efa\u6a21&#xff1a;ODS \u2192 DWD \u2192 DWS \u2192 ADS&#xff0c;Flink \u8d1f\u8d23\u9010\u5c42\u5b9e\u65f6\u52a0\u5de5&#xff1b;<\/li>\n<li>\u7ed3\u679c\u5e42\u7b49\u5199\u5165&#xff1a;\u501f\u52a9\u4e3b\u952e Upsert \u4fdd\u8bc1\u91cd\u590d\u6d88\u8d39\u4e0d\u4ea7\u751f\u810f\u6570\u636e\u3002<\/li>\n<\/ul>\n<p>INSERT INTO ads_gmv_1min<br \/>\nSELECT<br \/>\n    window_start,<br \/>\n    window_end,<br \/>\n    shop_id,<br \/>\n    SUM(pay_amount) AS gmv,<br \/>\n    COUNT(DISTINCT user_id) AS buyer_cnt<br \/>\nFROM TABLE(<br \/>\n    TUMBLE(TABLE dwd_order, DESCRIPTOR(event_time), INTERVAL &#039;1&#039; MINUTE)<br \/>\n)<br \/>\nWHERE order_status &#061; &#039;PAID&#039;<br \/>\nGROUP BY window_start, window_end, shop_id;<\/p>\n<p>\u4f7f\u7528 Flink SQL \u53ef\u4ee5\u5927\u5e45\u964d\u4f4e\u5b9e\u65f6\u6570\u4ed3\u7684\u5f00\u53d1\u95e8\u69db&#xff0c;\u8ba9\u6570\u636e\u5206\u6790\u5e08\u4e5f\u80fd\u76f4\u63a5\u53c2\u4e0e\u5b9e\u65f6\u6307\u6807\u5efa\u8bbe\u3002<\/p>\n<h3>\u56db\u3001\u573a\u666f\u4e09&#xff1a;\u5b9e\u65f6\u63a8\u8350\u4e0e\u7528\u6237\u884c\u4e3a\u5206\u6790<\/h3>\n<p>\u63a8\u8350\u7cfb\u7edf\u9700\u8981\u6839\u636e\u7528\u6237\u5f53\u524d\u884c\u4e3a\u5b9e\u65f6\u8c03\u6574\u53ec\u56de\u548c\u6392\u5e8f\u3002\u4f8b\u5982\u7528\u6237\u521a\u6d4f\u89c8\u4e86\u67d0\u7c7b\u5546\u54c1&#xff0c;\u9996\u9875\u5c31\u5e94\u7acb\u523b\u51fa\u73b0\u76f8\u5173\u63a8\u8350\u3002<\/p>\n<ul>\n<li>Flink \u6d88\u8d39\u7528\u6237\u70b9\u51fb\u3001\u66dd\u5149\u3001\u52a0\u8d2d\u3001\u6536\u85cf\u7b49\u57cb\u70b9\u6d41&#xff1b;<\/li>\n<li>\u6309\u7528\u6237\u7ef4\u5ea6\u7ef4\u62a4\u8fd1\u671f\u884c\u4e3a\u5e8f\u5217&#xff08;\u5982\u6700\u8fd1 50 \u6761\u70b9\u51fb&#xff09;&#xff0c;\u5199\u5165 Redis \u4f9b\u5728\u7ebf\u670d\u52a1\u8bfb\u53d6&#xff1b;<\/li>\n<li>\u5b9e\u65f6\u7edf\u8ba1\u5546\u54c1\u70ed\u5ea6\u3001\u7c7b\u76ee\u504f\u597d&#xff0c;\u66f4\u65b0\u7279\u5f81\u5e73\u53f0\u4e2d\u7684\u5b9e\u65f6\u7279\u5f81&#xff1b;<\/li>\n<li>\u7ed3\u5408 Interval Join \u628a\u66dd\u5149\u6d41\u4e0e\u70b9\u51fb\u6d41\u5bf9\u9f50&#xff0c;\u5b9e\u65f6\u8ba1\u7b97 CTR \u7b49\u6548\u679c\u6307\u6807\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u7c7b\u573a\u666f\u7684\u6838\u5fc3\u662f\u4f4e\u5ef6\u8fdf\u7279\u5f81\u66f4\u65b0&#xff0c;Flink \u7684\u72b6\u6001\u7ba1\u7406\u548c\u7a97\u53e3\u80fd\u529b\u6b63\u597d\u5339\u914d\u3002<\/p>\n<h3>\u4e94\u3001\u573a\u666f\u56db&#xff1a;\u5b9e\u65f6\u76d1\u63a7\u544a\u8b66\u4e0e\u65e5\u5fd7\u5206\u6790<\/h3>\n<p>\u8fd0\u7ef4\u548c SRE \u56e2\u961f\u5e38\u7528 Flink \u5904\u7406\u6d77\u91cf\u65e5\u5fd7\u4e0e\u6307\u6807\u6570\u636e&#xff1a;<\/p>\n<ul>\n<li>\u670d\u52a1\u65e5\u5fd7\u5b9e\u65f6\u89e3\u6790&#xff0c;\u6309\u9519\u8bef\u7801\u3001\u63a5\u53e3\u3001\u673a\u5668\u7ef4\u5ea6\u805a\u5408 QPS \u4e0e\u9519\u8bef\u7387&#xff1b;<\/li>\n<li>\u57fa\u4e8e CEP&#xff08;\u590d\u6742\u4e8b\u4ef6\u5904\u7406&#xff09;\u8bc6\u522b\u201c\u8fde\u7eed 3 \u6b21\u8d85\u65f6\u540e\u7d27\u8ddf\u4e00\u6b21\u7194\u65ad\u201d\u8fd9\u7c7b\u4e8b\u4ef6\u5e8f\u5217&#xff1b;<\/li>\n<li>\u6307\u6807\u8d85\u8fc7\u9608\u503c\u65f6\u63a8\u9001\u9489\u9489\u3001\u4f01\u4e1a\u5fae\u4fe1\u6216\u77ed\u4fe1\u544a\u8b66&#xff1b;<\/li>\n<li>\u7ed3\u5408\u5f02\u5e38\u68c0\u6d4b\u7b97\u6cd5\u505a\u8d8b\u52bf\u9884\u6d4b&#xff0c;\u63d0\u524d\u53d1\u73b0\u5bb9\u91cf\u74f6\u9888\u3002<\/li>\n<\/ul>\n<p>Pattern&lt;LogEvent, ?&gt; pattern &#061; Pattern.&lt;LogEvent&gt;begin(&#034;timeout&#034;)<br \/>\n    .where(evt -&gt; &#034;TIMEOUT&#034;.equals(evt.getType()))<br \/>\n    .times(3).consecutive()<br \/>\n    .next(&#034;circuit&#034;)<br \/>\n    .where(evt -&gt; &#034;CIRCUIT_BREAK&#034;.equals(evt.getType()));<\/p>\n<p>CEP.pattern(logStream.keyBy(LogEvent::getService), pattern)<br \/>\n   .process(new AlertProcessFunction())<br \/>\n   .addSink(new AlertSink());<\/p>\n<h3>\u516d\u3001\u573a\u666f\u4e94&#xff1a;\u5b9e\u65f6 ETL \u4e0e\u6570\u636e\u540c\u6b65<\/h3>\n<p>\u5f88\u591a\u4f01\u4e1a\u9700\u8981\u628a\u4e1a\u52a1\u5e93\u53d8\u66f4\u5b9e\u65f6\u540c\u6b65\u5230\u6570\u636e\u6e56\u6216\u4e0b\u6e38\u7cfb\u7edf\u3002Flink CDC \u53ef\u4ee5\u76f4\u63a5\u8bfb\u53d6 MySQL\u3001PostgreSQL\u3001Oracle \u7684 Binlog&#xff0c;\u5b9e\u73b0\u5168\u91cf\u4e0e\u589e\u91cf\u4e00\u4f53\u5316\u540c\u6b65\u3002<\/p>\n<ul>\n<li>\u5168\u91cf\u5feb\u7167 &#043; \u589e\u91cf\u65e5\u5fd7\u81ea\u52a8\u5207\u6362&#xff0c;\u65e0\u9700\u989d\u5916\u8c03\u5ea6&#xff1b;<\/li>\n<li>\u652f\u6301\u5b57\u6bb5\u8fc7\u6ee4\u3001\u8131\u654f\u3001\u7c7b\u578b\u8f6c\u6362\u7b49\u5b9e\u65f6\u6e05\u6d17&#xff1b;<\/li>\n<li>\u53ef\u540c\u65f6\u5199\u5165 Kafka\u3001Hudi\u3001Iceberg\u3001Doris \u7b49\u591a\u4e2a\u4e0b\u6e38&#xff1b;<\/li>\n<li>\u914d\u5408 Checkpoint \u4fdd\u8bc1\u65ad\u70b9\u7eed\u4f20\u4e0e Exactly-Once\u3002<\/li>\n<\/ul>\n<p>CREATE TABLE mysql_orders (<br \/>\n    id BIGINT,<br \/>\n    user_id BIGINT,<br \/>\n    amount DECIMAL(10, 2),<br \/>\n    PRIMARY KEY (id) NOT ENFORCED<br \/>\n) WITH (<br \/>\n    &#039;connector&#039; &#061; &#039;mysql-cdc&#039;,<br \/>\n    &#039;hostname&#039; &#061; &#039;localhost&#039;,<br \/>\n    &#039;port&#039; &#061; &#039;3306&#039;,<br \/>\n    &#039;username&#039; &#061; &#039;root&#039;,<br \/>\n    &#039;password&#039; &#061; &#039;******&#039;,<br \/>\n    &#039;database-name&#039; &#061; &#039;shop&#039;,<br \/>\n    &#039;table-name&#039; &#061; &#039;orders&#039;<br \/>\n);<\/p>\n<h3>\u4e03\u3001\u573a\u666f\u516d&#xff1a;\u5b9e\u65f6\u62a5\u8868\u4e0e\u5728\u7ebf\u7279\u5f81\u670d\u52a1<\/h3>\n<p>\u9664\u4e0a\u8ff0\u573a\u666f\u5916&#xff0c;Flink \u8fd8\u5e7f\u6cdb\u7528\u4e8e&#xff1a;<\/p>\n<table>\n<tr>\u884c\u4e1a\u5178\u578b\u5e94\u7528\u5b9e\u65f6\u6027\u8981\u6c42<\/tr>\n<tbody>\n<tr>\n<td>\u7535\u5546<\/td>\n<td>\u5b9e\u65f6 GMV\u3001\u5e93\u5b58\u9884\u8b66\u3001\u4f18\u60e0\u5238\u6838\u9500\u76d1\u63a7<\/td>\n<td>\u79d2\u7ea7<\/td>\n<\/tr>\n<tr>\n<td>\u91d1\u878d<\/td>\n<td>\u5b9e\u65f6\u53cd\u6d17\u94b1\u3001\u4ea4\u6613\u76d1\u63a7\u3001\u989d\u5ea6\u8ba1\u7b97<\/td>\n<td>\u6beb\u79d2\u5230\u79d2\u7ea7<\/td>\n<\/tr>\n<tr>\n<td>\u7269\u6d41<\/td>\n<td>\u8fd0\u5355\u8f68\u8ff9\u5b9e\u65f6\u8ba1\u7b97\u3001\u5f02\u5e38\u4ef6\u8bc6\u522b<\/td>\n<td>\u79d2\u7ea7<\/td>\n<\/tr>\n<tr>\n<td>\u6e38\u620f<\/td>\n<td>\u5b9e\u65f6\u5728\u7ebf\u4eba\u6570\u3001\u9053\u5177\u6d88\u8017\u3001\u5916\u6302\u68c0\u6d4b<\/td>\n<td>\u79d2\u7ea7<\/td>\n<\/tr>\n<tr>\n<td>\u7269\u8054\u7f51<\/td>\n<td>\u8bbe\u5907\u72b6\u6001\u76d1\u63a7\u3001\u9884\u6d4b\u6027\u7ef4\u62a4<\/td>\n<td>\u6beb\u79d2\u5230\u79d2\u7ea7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u516b\u3001\u843d\u5730\u65f6\u7684\u51e0\u4e2a\u5173\u952e\u8003\u91cf<\/h3>\n<li>\u65f6\u95f4\u8bed\u4e49&#xff1a;\u4f18\u5148\u4f7f\u7528\u4e8b\u4ef6\u65f6\u95f4 &#043; 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