{"id":47042,"date":"2022-09-14T17:11:53","date_gmt":"2022-11-22T13:13:55","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/avro%e8%81%94%e5%90%88%e8%ae%b0%e5%bd%95%e5%8f%8a%e5%85%b6%e5%91%a8%e8%be%b9%e3%80%82\/"},"modified":"2024-01-15T12:16:08","modified_gmt":"2024-01-15T04:16:08","slug":"avro%e8%81%94%e5%90%88%e8%ae%b0%e5%bd%95%e5%8f%8a%e5%85%b6%e5%91%a8%e8%be%b9%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/avro%e8%81%94%e5%90%88%e8%ae%b0%e5%bd%95%e5%8f%8a%e5%85%b6%e5%91%a8%e8%be%b9%e3%80%82\/","title":{"rendered":"AVRO\u8054\u5408\u8bb0\u5f55\u53ca\u5176\u5468\u8fb9"},"content":{"rendered":"<p>\u5728\u5c06JSON\u6d41\u4f20\u7ed9Kafka\u65f6\uff0cAVRO JSON\u662f\u5426\u662f\u6700\u5e38\u7528\u7684\u9009\u62e9\uff1f\u7279\u522b\u662f\u5f53\u6210\u5458\u53d8\u91cf\u7684\u7ed3\u6784\u4f53\u88ab\u5d4c\u5957\u4fdd\u6301\uff0c\u5e76\u4e14\u53ef\u4ee5\u901a\u8fc7Union\u5207\u6362\u7c7b\u578b\u65f6\uff0c\u4f1a\u53d8\u5f97\u975e\u5e38\u590d\u6742\u3002<\/p>\n<p>\u5361\u592b\u5361\u7684\u4e3b\u9898\u6700\u597d\u662f\u5177\u6709\u7a33\u5b9a\u7684\u7c7b\u578b\uff0c\u5e76\u4e14\u53ef\u4ee5\u6839\u636e\u6570\u636e\u96c6\u6765\u8bbe\u8ba1\u7c7b\uff08\u6709\u5404\u79cd\u4e0d\u540c\u7684\u89c2\u70b9\uff09\u3002\u8fd9\u6837\u505a\u7684\u7ed3\u679c\u662f\uff0c\u8054\u5408\u7c7b\u578b\u4e5f\u53ef\u80fd\u6210\u4e3a\u6700\u4f73\u9009\u62e9\u3002\u5c3d\u7ba1\u8fd9\u4f1a\u5bfc\u81f4\u7a0d\u5fae\u5197\u957f\u7684JSON\u8868\u793a\u5f62\u5f0f\uff0c\u4f46\u53ef\u4ee5\u4f5c\u4e3a\u901a\u7528JSON\u4e0e\u5176\u4ed6\u5de5\u5177\u8fdb\u884c\u517c\u5bb9\u3002<\/p>\n<h3>\u5c06AVRO json\u5e8f\u5217\u5316<\/h3>\n<p>\u5f53\u4f7f\u7528 Union \u5904\u7406\u8bb0\u5f55\u65f6\uff0ckey \u4e2d\u5305\u542b\u8bb0\u5f55\u540d\u79f0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">{<\/span><span class=\"nl\">\"bulk\"<\/span><span class=\"p\">:<\/span><span class=\"kc\">null<\/span><span class=\"p\">}<\/span>\r\n<span class=\"p\">{<\/span><span class=\"nl\">\"bulk\"<\/span><span class=\"p\">:{<\/span><span class=\"nl\">\"string\"<\/span><span class=\"p\">:<\/span><span class=\"s2\">\"test\"<\/span><span class=\"p\">}}<\/span>\r\n<span class=\"p\">{<\/span><span class=\"nl\">\"bulk\"<\/span><span class=\"p\">:{<\/span><span class=\"nl\">\"name.space.Name\"<\/span><span class=\"p\">:{<\/span><span class=\"nl\">\"field1\"<\/span><span class=\"p\">:<\/span><span class=\"s2\">\"test\"<\/span><span class=\"p\">}}}<\/span>\r\n<\/code><\/pre>\n<h3>\u6d6e\u58eb\u5fb7\u8bb0\u5f55<\/h3>\n<p>\u5728\u4f7f\u7528Faust\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5c06\u7c7b\u578b\u4fe1\u606f\u5d4c\u5165\u5230\u4ee3\u7801\u4e2d\u3002\u66f4\u591a\u8be6\u60c5\u8bf7\u53c2\u8003\uff1ahttps:\/\/faust.readthedocs.io\/en\/latest\/userguide\/models.html<\/p>\n<p>Avro \u662f\u7528\u4e8e\u901a\u7528\u7c7b\u578b\u8f6c\u6362\u7684\uff0c\u800c faust.Record \u8fd8\u53ef\u4ee5\u8f6c\u6362 UUID\u3001datetime \u7b49\u66f4\u7279\u5b9a\u7684\u7c7b\u578b\u3002.dump() \u53ef\u4ee5\u5feb\u901f\u67e5\u770b\u8f93\u51fa\u7ed3\u679c\uff0c\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n<h3>ksql -&gt; \u57fa\u4e8e\u6d41\u7684SQL<\/h3>\n<p>\u53cc\u5f15\u53f7\u53ef\u7528\u4e8e\u8f6c\u4e49\u3002\u6210\u5458\u8bbf\u95ee\u4f7f\u7528\u7bad\u5934\u3002\u8bf7\u53c2\u8003\u6b64\u94fe\u63a5\uff1ahttps:\/\/docs.confluent.io\/current\/ksql\/docs\/developer-guide\/query-with-structured-data.html<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">CREATE<\/span> <span class=\"n\">STREAM<\/span> <span class=\"n\">T<\/span> <span class=\"p\">(<\/span><span class=\"k\">TYPE<\/span> <span class=\"nb\">VARCHAR<\/span><span class=\"p\">,<\/span>\r\n                <span class=\"k\">DATA<\/span> <span class=\"n\">STRUCT<\/span><span class=\"o\">&lt;<\/span>\r\n                      <span class=\"nb\">timestamp<\/span> <span class=\"nb\">VARCHAR<\/span><span class=\"p\">,<\/span>\r\n                      <span class=\"nv\">\"field-a\"<\/span> <span class=\"nb\">INT<\/span><span class=\"p\">,<\/span>\r\n                      <span class=\"nv\">\"field-b\"<\/span> <span class=\"nb\">VARCHAR<\/span><span class=\"p\">,<\/span>\r\n                      <span class=\"nv\">\"field-c\"<\/span> <span class=\"nb\">INT<\/span><span class=\"p\">,<\/span>\r\n                      <span class=\"nv\">\"field-d\"<\/span> <span class=\"nb\">VARCHAR<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">WITH<\/span> <span class=\"p\">(<\/span><span class=\"n\">KAFKA_TOPIC<\/span><span class=\"o\">=<\/span><span class=\"s1\">'raw-topic'<\/span><span class=\"p\">,<\/span>\r\n              <span class=\"n\">VALUE_FORMAT<\/span><span class=\"o\">=<\/span><span class=\"s1\">'JSON'<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"k\">SELECT<\/span> <span class=\"k\">DATA<\/span><span class=\"o\">-&gt;<\/span><span class=\"nv\">\"field-a\"<\/span><span class=\"p\">,<\/span> <span class=\"k\">DATA<\/span><span class=\"o\">-&gt;<\/span><span class=\"nv\">\"field-b\"<\/span> <span class=\"k\">FROM<\/span> <span class=\"n\">T<\/span> <span class=\"k\">WHERE<\/span> <span class=\"k\">TYPE<\/span><span class=\"o\">=<\/span><span class=\"s1\">'key1'<\/span> <span class=\"k\">LIMIT<\/span> <span class=\"mi\">2<\/span><span class=\"p\">;<\/span>\r\n<\/code><\/pre>\n<h3>\u963f\u5f17\u7f57-JSON\u5e8f\u5217\u5316\u5668<\/h3>\n<p>\u5c3d\u7ba1\u5b83\u7684\u8fd0\u884c\u76f8\u5bf9\u987a\u5229\uff0c\u4f46\u662f\u63a7\u5236\u4e32\u884c\u5316\u65b9\u6cd5\u7684 union \u548c record \u662f\u4e00\u4e2a\u6311\u6218\u3002\u4f9d\u8d56\u4e8e avro-python3\u3002<br \/>\nURL\uff1ahttps:\/\/github.com\/linkedin\/python-avro-json-serializer<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">avro.schema<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">avro_json_serializer<\/span> <span class=\"kn\">import<\/span> <span class=\"o\">*<\/span>\r\n\r\n<span class=\"n\">schema_dict<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"s\">\"fields\"<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span>\r\n    <span class=\"p\">{<\/span><span class=\"s\">\"name\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"frec\"<\/span><span class=\"p\">,<\/span>\r\n      <span class=\"s\">\"type\"<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span>\r\n        <span class=\"s\">\"null\"<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"s\">\"string\"<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"p\">{<\/span><span class=\"s\">\"fields\"<\/span><span class=\"p\">:<\/span> <span class=\"p\">[{<\/span><span class=\"s\">\"name\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"subfint\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"type\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"int\"<\/span><span class=\"p\">}],<\/span>\r\n                   <span class=\"s\">\"name\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"Rec\"<\/span><span class=\"p\">,<\/span>\r\n                  <span class=\"s\">\"type\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"record\"<\/span><span class=\"p\">},<\/span>\r\n        <span class=\"p\">{<\/span><span class=\"s\">\"fields\"<\/span><span class=\"p\">:<\/span> <span class=\"p\">[{<\/span><span class=\"s\">\"name\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"subfint2\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"type\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"int\"<\/span><span class=\"p\">}],<\/span>\r\n                  <span class=\"s\">\"name\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"Rec2\"<\/span><span class=\"p\">,<\/span>\r\n                  <span class=\"s\">\"type\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"record\"<\/span><span class=\"p\">}<\/span>\r\n      <span class=\"p\">]<\/span>\r\n    <span class=\"p\">}<\/span>\r\n  <span class=\"p\">],<\/span>\r\n  <span class=\"s\">\"name\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"all_field\"<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"s\">\"namespace\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"com.some.thing\"<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"s\">\"type\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"record\"<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"n\">avro_schema<\/span> <span class=\"o\">=<\/span> <span class=\"n\">avro<\/span><span class=\"p\">.<\/span><span class=\"n\">schema<\/span><span class=\"p\">.<\/span><span class=\"n\">SchemaFromJSONData<\/span><span class=\"p\">(<\/span><span class=\"n\">schema_dict<\/span><span class=\"p\">,<\/span> <span class=\"n\">avro<\/span><span class=\"p\">.<\/span><span class=\"n\">schema<\/span><span class=\"p\">.<\/span><span class=\"n\">Names<\/span><span class=\"p\">())<\/span>\r\n<span class=\"n\">serializer<\/span> <span class=\"o\">=<\/span> <span class=\"n\">AvroJsonSerializer<\/span><span class=\"p\">(<\/span><span class=\"n\">avro_schema<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"n\">serializer<\/span><span class=\"p\">.<\/span><span class=\"n\">to_json<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"s\">\"ffloat\"<\/span><span class=\"p\">:<\/span> <span class=\"mf\">1.0<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"funion_null\"<\/span><span class=\"p\">:<\/span> <span class=\"bp\">None<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"flong\"<\/span><span class=\"p\">:<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"fdouble\"<\/span><span class=\"p\">:<\/span> <span class=\"mf\">2.0<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"fint\"<\/span><span class=\"p\">:<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"fstring\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"hi there\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"frec\"<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span><span class=\"s\">\"subfint\"<\/span><span class=\"p\">:<\/span> <span class=\"mi\">1<\/span><span class=\"p\">}<\/span>\r\n<span class=\"p\">})<\/span>\r\n<span class=\"c1\"># '{\"frec\":{\"com.some.thing.Rec\":{\"subfint\":1}}}'\r\n<\/span><span class=\"n\">serializer<\/span><span class=\"p\">.<\/span><span class=\"n\">to_json<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"s\">\"ffloat\"<\/span><span class=\"p\">:<\/span> <span class=\"mf\">1.0<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"funion_null\"<\/span><span class=\"p\">:<\/span> <span class=\"bp\">None<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"flong\"<\/span><span class=\"p\">:<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"fdouble\"<\/span><span class=\"p\">:<\/span> <span class=\"mf\">2.0<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"fint\"<\/span><span class=\"p\">:<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"fstring\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"hi there\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"frec\"<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span><span class=\"s\">\"subfint2\"<\/span><span class=\"p\">:<\/span> <span class=\"mi\">2<\/span><span class=\"p\">}<\/span>\r\n<span class=\"p\">})<\/span>\r\n<span class=\"c1\"># '{\"frec\":{\"com.some.thing.Rec2\":{\"subfint2\":2}}}'\r\n<\/span><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u5c06JSON\u6d41\u4f20\u7ed9Kafka\u65f6\uff0cAVRO JSON\u662f\u5426\u662f\u6700\u5e38\u7528\u7684\u9009\u62e9\uff1f\u7279\u522b\u662f\u5f53\u6210\u5458\u53d8\u91cf\u7684\u7ed3\u6784\u4f53\u88ab\u5d4c\u5957\u4fdd\u6301\uff0c\u5e76\u4e14 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-47042","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>AVRO\u8054\u5408\u8bb0\u5f55\u53ca\u5176\u5468\u8fb9 - 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\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/avro\u8054\u5408\u8bb0\u5f55\u53ca\u5176\u5468\u8fb9\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AVRO\u8054\u5408\u8bb0\u5f55\u53ca\u5176\u5468\u8fb9\" \/>\n<meta property=\"og:description\" content=\"\u5728\u5c06JSON\u6d41\u4f20\u7ed9Kafka\u65f6\uff0cAVRO JSON\u662f\u5426\u662f\u6700\u5e38\u7528\u7684\u9009\u62e9\uff1f\u7279\u522b\u662f\u5f53\u6210\u5458\u53d8\u91cf\u7684\u7ed3\u6784\u4f53\u88ab\u5d4c\u5957\u4fdd\u6301\uff0c\u5e76\u4e14 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/avro\u8054\u5408\u8bb0\u5f55\u53ca\u5176\u5468\u8fb9\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-22T13:13:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-01-15T04:16:08+00:00\" \/>\n<meta name=\"author\" content=\"\u65b0, \u97f5\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u65b0, \u97f5\" 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