{"id":36775,"date":"2023-01-15T22:58:37","date_gmt":"2023-05-18T01:34:47","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8apache-flink%e8%bf%9b%e8%a1%8c%e6%95%b0%e6%8d%ae%e5%a4%84%e7%90%86%e3%80%82\/"},"modified":"2024-04-29T10:02:50","modified_gmt":"2024-04-29T02:02:50","slug":"%e4%bd%bf%e7%94%a8apache-flink%e8%bf%9b%e8%a1%8c%e6%95%b0%e6%8d%ae%e5%a4%84%e7%90%86%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8apache-flink%e8%bf%9b%e8%a1%8c%e6%95%b0%e6%8d%ae%e5%a4%84%e7%90%86%e3%80%82\/","title":{"rendered":"\u4f7f\u7528Apache Flink\u8fdb\u884c\u6570\u636e\u5904\u7406"},"content":{"rendered":"<h1>\u9996\u5148<\/h1>\n<p>\u4f60\u597d\uff01\u6211\u662fLOB\u7684@RyosukeKawamura\u3002<br \/>\n\u9019\u7bc7\u6587\u7ae0\u662fLOB Advent Calendar 2018\u7b2c19\u5929\u7684\u6587\u7ae0\u3002<\/p>\n<p>\u8fd9\u662f\u6211\u7684\u7b2c\u4e8c\u6b21\u53d1\u5e16\u3002<br \/>\n\u7531\u4e8e\u6211\u76ee\u524d\u6b63\u5728\u5de5\u4f5c\u4e2d\u4f7f\u7528Apache Flink\u8fdb\u884c\u6570\u636e\u5904\u7406\uff0c\u6240\u4ee5\u8fd9\u6b21\u6211\u60f3\u5199\u4e00\u4e9b\u5173\u4e8e\u5b83\u7684\u5185\u5bb9\u3002<\/p>\n<p>\u5173\u4e8eFlink\uff0c\u5177\u4f53\u7684\u5b9e\u4f8b\u5728\u7f51\u4e0a\u5e76\u4e0d\u591a\uff0c\u5373\u4f7f\u6709\uff0c\u4e5f\u53ea\u80fd\u627e\u5230\u4e00\u4e9b\u201c\u8bd5\u4e00\u8bd5\u201d\u6216\u8005\u201cFlink\u7684\u25ef\u25efAPI\u89e3\u91ca\u201d\u4e4b\u7c7b\u7684\u4e1c\u897f\u3002\u6240\u4ee5\u5230\u5e95\u8be5\u600e\u4e48\u529e\u5462\uff1f\u8fd9\u8ba9\u6211\u5f88\u96be\u7406\u89e3\u3002\u4f46\u662f\u6b63\u597d\u6211\u8eab\u8fb9\u6709\u4e00\u4e2a\u975e\u5e38\u61c2\u7684\u540c\u4e8b\uff0c\u6211\u4eec\u5728\u4e00\u8d77\u5b66\u4e60\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u7ec8\u4e8e\u660e\u767d\u4e86\u201c\u5982\u679c\u7075\u6d3b\u8fd0\u7528\u7684\u8bdd\uff0c\u8fd9\u786e\u5b9e\u975e\u5e38\u65b9\u4fbf\uff01\u201d\u6240\u4ee5\u4e3a\u4e86\u6574\u7406\u81ea\u5df1\u7684\u77e5\u8bc6\uff0c\u6211\u60f3\u628a\u5b83\u603b\u7ed3\u8d77\u6765\u3002<\/p>\n<h1>\u4e2d\u6587\uff1aApache Flink 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\/>\n\u8fd9\u6b21\u662f\u7528Java\u6765\u5b9e\u73b0\u7684\uff0c\u4e0d\u8fc7Scala\u4e5f\u53ef\u4ee5\u4f7f\u7528Flink\uff0c\u542c\u8bf4\u90a3\u8fb9\u7684\u6548\u679c\u66f4\u597d\u3002<br \/>\n\u6837\u4f8b\u4ee3\u7801\u662f\u8fd9\u6837\u7684\u3002<\/p>\n<h3>\u5f53\u969c\u788d\u53d1\u751f\u65f6\uff0c\u80fd\u591f\u667a\u80fd\u5730\u6062\u590d\u5e76\u4ece\u6b64\u5904\u91cd\u65b0\u5f00\u59cb\u5904\u7406\u7684\u5b9e\u65bd\u65b9\u6cd5\u662f\u53ef\u80fd\u7684\u3002<\/h3>\n<p>\u4e0d\u597d\u610f\u601d\uff0c\u9019\u90e8\u5206\u76ee\u524d\u9084\u672a\u5be6\u73fe\uff0c\u6240\u4ee5\u6211\u4e26\u4e0d\u4e86\u89e3\u7d30\u7bc0\u3002<br \/>\n\u6839\u64da\u5be6\u73fe\u7684\u60c5\u6cc1\uff0c\u4f3c\u4e4e\u53ef\u4ee5\u8a2d\u7f6e\u4e00\u500b\u985e\u4f3c\u6aa2\u67e5\u9ede\u7684\u6a5f\u5236\uff0c\u53ef\u4ee5\u5f9e\u90a3\u88e1\u91cd\u65b0\u958b\u59cb\uff0c\u9054\u5230\u66f4\u597d\u7684\u6548\u679c\u3002<br \/>\n\u9019\u6a23\u4f3c\u4e4e\u66f4\u5bb9\u6613\u4fdd\u8b49\u51aa\u7b49\u6027\uff0c\u9019\u771f\u662f\u4ee4\u4eba\u9ad8\u8208\u554a\u3002<br \/>\nFlink\u96c6\u7fa4\u9810\u8a2d\u63d0\u4f9b\u7684\u63a7\u5236\u53f0\u4e5f\u975e\u5e38\u65b9\u4fbf\uff0c\u53ef\u4ee5\u7528\u4f86\u67e5\u770b\u4f5c\u696d\u9032\u5ea6\uff0c\u9019\u5c0d\u6211\u5011\u975e\u5e38\u6709\u5e6b\u52a9\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d2b1b37434c4406c496dc\/14-0.png\" alt=\"image.png\" \/><\/div>\n<h1>\u5361\u5728\u90a3\u91cc<\/h1>\n<h3>\u5c06CSV\u7b49\u6709\u9650\u7684\u6570\u636e\u4f5c\u4e3a\u6d41\u5904\u7406\u3002<\/h3>\n<p>\u6211\u5011\u9700\u8981\u8655\u7406\u4ee5\u6709\u9650\u6587\u4ef6\u70ba\u8f38\u5165\u7684\u8655\u7406\u6d41\u7a0b\u3002\u7531\u65bc\u9700\u8981\u6eff\u8db3&#8221;\u60f3\u8981\u4f7f\u7528\u6d41\u5f0f\u8655\u7406\u7684API&#8221;\u548c&#8221;\u53ef\u80fd\u6703\u8f49\u8b8a\u6210\u6d41\u5f0f\u8655\u7406&#8221;\u7684\u8981\u6c42\uff0c\u6211\u5011\u5fc5\u9808\u505a\u51fa\u76f8\u61c9\u7684\u8abf\u6574\u3002<br \/>\n\u6211\u5011\u7684\u89e3\u6c7a\u65b9\u6cd5\u662f\uff1a\u8b80\u53d6\u6587\u4ef6-&gt;\u5c07\u5176\u4f5c\u70ba\u8868\u683c\u8f09\u5165\u4e00\u6b21-&gt;\u5f9e\u8868\u683c\u4e2d\u8f09\u5165\u6578\u64da-&gt;\u5c07\u7d50\u679c\u4f5c\u70ba\u6578\u64da\u6d41\u9032\u884c\u64cd\u4f5c\u3002<br \/>\n\u9019\u53ef\u80fd\u6709\u9ede\u68d8\u624b\uff0c\u4f46\u53ea\u8981\u597d\u597d\u641c\u7d22\u5b98\u65b9\u6587\u6a94\uff0c\u4f60\u5c31\u6703\u767c\u73fe\u5176\u5be6\u5b83\u65e9\u5df2\u6709\u6240\u63d0\u53ca\uff0c\u6240\u4ee5\u9084\u662f\u8981\u4ed4\u7d30\u95b1\u8b80\u4e00\u4e0b&#8230;\u5be6\u73fe\u7684\u8a71\u5c31\u6703\u662f\u9019\u7a2e\u611f\u89ba\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/ \u30b9\u30c8\u30ea\u30fc\u30e0\u51e6\u7406\u30fb\u30c6\u30fc\u30d6\u30eb\u306e\u51e6\u7406\u306b\u5fc5\u8981\u306a\u74b0\u5883\u3092\u8aad\u307f\u8fbc\u3080<\/span>\r\n<span class=\"nc\">StreamExecutionEnvironment<\/span> <span class=\"n\">sEnv<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">StreamExecutionEnvironment<\/span><span class=\"o\">.<\/span><span class=\"na\">getExecutionEnvironment<\/span><span class=\"o\">();<\/span> \r\n<span class=\"nc\">StreamTableEnvironment<\/span> <span class=\"n\">tEnv<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">StreamTableEnvironment<\/span><span class=\"o\">.<\/span><span class=\"na\">getTableEnvironment<\/span><span class=\"o\">(<\/span><span class=\"n\">sEnv<\/span><span class=\"o\">);<\/span> \r\n\r\n<span class=\"c1\">\/\/ \u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f<\/span>\r\n<span class=\"nc\">TableSource<\/span> <span class=\"n\">source<\/span> <span class=\"o\">=<\/span>  <span class=\"k\">new<\/span> <span class=\"nc\">CsvTableSource<\/span><span class=\"o\">.<\/span><span class=\"na\">Builder<\/span><span class=\"o\">()<\/span> \r\n    <span class=\"o\">.<\/span><span class=\"na\">path<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\/path\/to\/user_data.tsv\"<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"na\">ignoreFirstLine<\/span><span class=\"o\">()<\/span> <span class=\"c1\">\/\/ \u30d8\u30c3\u30c0\u30fc\u8aad\u307f\u98db\u3070\u3057\u304c\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u66f8\u304f\u3060\u3051\u3067OK\u306a\u306e\u5730\u5473\u306b\u5b09\u3057\u3044 <\/span>\r\n    <span class=\"o\">.<\/span><span class=\"na\">ignoreParseErrors<\/span><span class=\"o\">()<\/span> <span class=\"c1\">\/\/ \u4e0d\u6b63\u306a\u30c7\u30fc\u30bf\u306f\u3053\u308c\u3067\u7121\u8996\u3067\u304d\u308b<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"na\">fieldDelimiter<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\\t\"<\/span><span class=\"o\">)<\/span> <span class=\"c1\">\/\/ \u30bf\u30d6\u533a\u5207\u308a<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"na\">field<\/span><span class=\"o\">(<\/span><span class=\"s\">\"cookie\"<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Types<\/span><span class=\"o\">.<\/span><span class=\"na\">STRING<\/span><span class=\"o\">)<\/span> \r\n    <span class=\"o\">.<\/span><span class=\"na\">field<\/span><span class=\"o\">(<\/span><span class=\"s\">\"date\"<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Types<\/span><span class=\"o\">.<\/span><span class=\"na\">TIMESTAMP<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"na\">build<\/span><span class=\"o\">();<\/span> \r\n\r\n<span class=\"c1\">\/\/ \u30c6\u30fc\u30d6\u30eb\u306e\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u3068\u3057\u3066\u767b\u9332<\/span>\r\n<span class=\"n\">tEnv<\/span><span class=\"o\">.<\/span><span class=\"na\">registerTableSource<\/span><span class=\"o\">(<\/span><span class=\"s\">\"users\"<\/span><span class=\"o\">,<\/span> <span class=\"n\">source<\/span><span class=\"o\">);<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u30c6\u30fc\u30d6\u30eb\u3068\u3057\u3066\u30c7\u30fc\u30bf\u3092\u53d6\u5f97<\/span>\r\n<span class=\"nc\">Table<\/span> <span class=\"n\">table<\/span> <span class=\"o\">=<\/span> <span class=\"n\">tEnv<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"na\">scan<\/span><span class=\"o\">(<\/span><span class=\"s\">\"users\"<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/ \u3053\u3053\u306b.filter()\u3068\u304b.select()\u3068\u304b\u7e4b\u3050\u3068SQL\u30c1\u30c3\u30af\u306a\u51e6\u7406\u3082\u3067\u304d\u308b<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u306b\u5909\u63db<\/span>\r\n<span class=\"nc\">DataStream<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">UserEntity<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">ds<\/span> <span class=\"o\">=<\/span> <span class=\"n\">tEnv<\/span><span class=\"o\">.<\/span><span class=\"na\">toAppendStream<\/span><span class=\"o\">(<\/span><span class=\"n\">table<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Row<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">)<\/span> <span class=\"c1\">\/\/ Entity\u3092\u5b9a\u7fa9\u3057\u3066\u304a\u3051\u3070\u305d\u306e\u578b\u306e\u30b9\u30c8\u30ea\u30fc\u30e0\u3068\u3057\u3066\u8aad\u307f\u8fbc\u3081\u308b<\/span>\r\n\r\n<span class=\"n\">ds<\/span><span class=\"o\">.<\/span><span class=\"na\">flatMap<\/span><span class=\"o\">(<\/span><span class=\"k\">new<\/span> <span class=\"n\">hogeFlatMap<\/span><span class=\"o\">()).<\/span><span class=\"na\">setParallelism<\/span><span class=\"o\">(<\/span><span class=\"n\">parallelNum<\/span><span class=\"o\">).<\/span><span class=\"na\">addSink<\/span><span class=\"o\">(...);<\/span> <span class=\"c1\">\/\/ \u3053\u3053\u306f\u7701\u7565\u3057\u3066\u307e\u3059(FlatMap\u3057\u3066addSink\u306b\u308f\u305f\u3059\u307f\u305f\u3044\u306a\u306e\u304c\u3088\u304f\u3042\u308b\u5b9f\u88c5\u306e\u5f62\u3089\u3057\u3044)<\/span>\r\n<span class=\"n\">sEnv<\/span><span class=\"o\">.<\/span><span class=\"na\">execute<\/span><span class=\"o\">();<\/span> <span class=\"c1\">\/\/ \u3053\u3053\u5fd8\u308c\u308b\u3068\u306a\u306b\u3082\u52d5\u304b\u306a\u3044<\/span>\r\n<\/code><\/pre>\n<h3>\u521d\u6b21\u89c1\u9762\u7684\u65f6\u5019\u5f88\u96be\u60f3\u8c61\u5b83\u5230\u5e95\u5982\u4f55\u8fd0\u4f5c\u3002<\/h3>\n<p>\u8fd9\u5c31\u662f\u4e86\u3002\u54c8\u54c8<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">ds<\/span><span class=\"o\">.<\/span><span class=\"na\">flatMap<\/span><span class=\"o\">(<\/span><span class=\"k\">new<\/span> <span class=\"n\">hogeFlatMap<\/span><span class=\"o\">()).<\/span><span class=\"na\">setParallelism<\/span><span class=\"o\">(<\/span><span class=\"n\">parallelNum<\/span><span class=\"o\">).<\/span><span class=\"na\">addSink<\/span><span class=\"o\">(...);<\/span>\r\n<\/code><\/pre>\n<p>\u6839\u636e\u6211\u7684\u7406\u89e3\uff0c\u8fd9\u6bb5\u8bdd\u7684\u610f\u601d\u662f\uff1a\u5728\u5e76\u884c\u5904\u7406\u7684\u60c5\u51b5\u4e0b\uff0c\u901a\u8fc7\u6d41\u5f0f\u5904\u7406\u6765\u5c06hogeFlatMap()\u51fd\u6570\u5e94\u7528\u5728parallelNum\u4e2a\u5143\u7d20\u4e0a\uff0c\u5e76\u5c06hogeFlatMap()\u5185\u90e8\u7684\u8f93\u51fa\u4f20\u9012\u7ed9addSink\u51fd\u6570\u3002\u8fd9\u79cd\u5904\u7406\u65b9\u5f0f\u5c31\u50cf\u5728\u547d\u4ee4\u884c\u4e2d\u4f7f\u7528\u7ba1\u9053\u8fde\u63a5\u591a\u4e2a\u64cd\u4f5c\u4e00\u6837\uff0c\u5341\u5206\u65b9\u4fbf\u3002\u521a\u5f00\u59cb\u65f6\u6211\u5b8c\u5168\u4e0d\u7406\u89e3\u8fd9\u4e2a\u610f\u601d\u3002\u7531\u4e8eflatMap\u51fd\u6570\u4f1a\u5728\u6bcf\u6b21\u8c03\u7528\u65f6\u90fd\u88ab\u6267\u884c\uff0c\u6240\u4ee5\u5728\u5176\u4e2d\u521b\u5efa\u8fde\u63a5\u4f1a\u5bfc\u81f4\u65e0\u6cd5\u8fdb\u884c\u5957\u63a5\u5b57\u8fde\u63a5\u800c\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83\uff08\u56e0\u6b64\u9700\u8981\u5c06\u5176\u4f20\u9012\u7ed9\u6784\u9020\u51fd\u6570\uff09\uff0c\u603b\u4e4b\uff0c\u6700\u521d\u7684\u56f0\u60d1\u70b9\u662f\u5f88\u96be\u7406\u89e3\u6bcf\u4e2a\u64cd\u4f5c\u662f\u5728\u4f55\u65f6\u6267\u884c\u7684\uff0c\u5373\u4f7f\u4f7f\u7528\u5355\u6b65\u8c03\u8bd5\u4e5f\u4e0d\u5bb9\u6613\u89c2\u5bdf\u5230\u3002<\/p>\n<h1>\u6700\u540e<\/h1>\n<p>\u53ea\u8981\u638c\u63e1\u4e86\u7a8d\u95e8\uff08\u5c3d\u7ba1\u6211\u8fd8\u6ca1\u6709\u638c\u63e1\uff09\uff0cFlink\u53ef\u80fd\u6210\u4e3a\u6570\u636e\u7ba1\u9053\u4e2d\u5f3a\u5927\u7684\u52a9\u624b\uff0c\u867d\u7136\u7406\u89e3\u548c\u638c\u63e1\u5b83\u7684\u5f62\u8c61\u6709\u70b9\u56f0\u96be\u3002\u7531\u4e8e\u6709\u673a\u4f1a\u63a5\u89e6\u5e7f\u544a\u79d1\u6280\u7684\u5927\u6570\u636e\uff0c\u6211\u5e0c\u671b\u80fd\u591f\u66f4\u591a\u5730\u5b66\u4e60\u5e76\u638c\u63e1\u5b83\u7684\u4f7f\u7528\u3002<\/p>\n<p>\u5982\u679c\u4f60\u5bf9\u6211\u4eec\u516c\u53f8\u80fd\u591f\u8fd0\u7528\u4e0d\u4ec5\u9650\u4e8eFlink\u7684\u65b0\u6570\u636e\u5904\u7406\u6280\u672f\u62b1\u6709\u5174\u8da3\u5e76\u4e14\u5e0c\u671b\u4e00\u540c\u5408\u4f5c\uff0c\u6211\u4eec\u516c\u53f8\u63d0\u4f9b\u4e86\u8bb8\u591a\u8fd9\u6837\u7684\u673a\u4f1a\u3002\u7279\u522b\u662f\u7531\u4e8e\u6211\u4eec\u53ef\u4ee5\u5904\u7406\u5176\u4ed6\u516c\u53f8\u65e0\u6cd5\u5e94\u5bf9\u7684\u5927\u91cf\u548c\u9ad8\u8d28\u91cf\u7684\u6570\u636e\uff0c\u5982\u679c\u4f60\u5bf9\u6b64\u611f\u5174\u8da3\u5e76\u5e0c\u671b\u5408\u4f5c\uff0c\u8bf7\u4e00\u5b9a\u4e0e\u6211\u4eec\u643a\u624b\u5408\u4f5c\uff01<\/p>\n<p>\u6211\u4eec\u6b63\u5728\u70ed\u70c8\u62db\u52df\u5fd7\u540c\u9053\u5408\u7684\u4f19\u4f34\uff0c\u4e3a\u4e86\u521b\u9020\u80fd\u591f\u6539\u53d8\u6d41\u901a\u5f62\u6001\u7684\u5e7f\u544a\u5e73\u53f0\uff01\u6211\u4eec\u6bcf\u5929\u90fd\u5728\u5f00\u5c55\u6218\u7565\u4f1a\u8bae\uff0c\u81f4\u529b\u4e8e\u5efa\u7acb\u9ad8\u6548\u7684\u6570\u636e\u57fa\u7840\u8bbe\u65bd\uff01\u8bf7\u70b9\u51fb\u94fe\u63a5 https:\/\/lob-inc.com\/recruit\/\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u4f60\u597d\uff01\u6211\u662fLOB\u7684@RyosukeKawamura\u3002 \u9019\u7bc7\u6587\u7ae0\u662fLOB Advent Calendar  [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-36775","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>\u4f7f\u7528Apache Flink\u8fdb\u884c\u6570\u636e\u5904\u7406 - 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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