{"id":1395,"date":"2022-03-20T12:12:15","date_gmt":"2022-03-20T04:12:15","guid":{"rendered":"http:\/\/dba.qishuo.xin\/?p=1395"},"modified":"2022-04-22T08:13:17","modified_gmt":"2022-04-22T00:13:17","slug":"mybatisx%e6%8f%92%e4%bb%b6%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"http:\/\/dba.qishuo.xin\/?p=1395","title":{"rendered":"MybatisX\u63d2\u4ef6\u4f7f\u7528\u65b9\u6cd5"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 ez-toc-wrap-right counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-69fea60d85c76\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69fea60d85c76\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/dba.qishuo.xin\/?p=1395\/#1_%E7%AE%80%E4%BB%8B\" >1. \u7b80\u4ecb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/dba.qishuo.xin\/?p=1395\/#2_%E5%BF%AB%E9%80%9F%E4%B8%8A%E6%89%8B\" >2. \u5feb\u901f\u4e0a\u624b<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/dba.qishuo.xin\/?p=1395\/#21_%E7%94%9F%E6%88%90%E4%BB%A3%E7%A0%81%E5%8A%9F%E8%83%BD\" >2.1. \u751f\u6210\u4ee3\u7801\u529f\u80fd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/dba.qishuo.xin\/?p=1395\/#22_xml%E8%B7%B3%E8%BD%AC%E5%8A%9F%E8%83%BD\" >2.2. xml\u8df3\u8f6c\u529f\u80fd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/dba.qishuo.xin\/?p=1395\/#23_JPA%E6%8F%90%E7%A4%BA%EF%BC%88%E4%BB%A3%E7%A0%81%E8%87%AA%E5%8A%A8%E8%A1%A5%E5%85%A8%EF%BC%8C%E5%90%8C%E6%97%B6%E5%9C%A8xml%E4%B8%AD%E7%94%9F%E6%88%90%E5%AF%B9%E5%BA%94%E7%9A%84SQL%E8%AF%AD%E5%8F%A5%EF%BC%89\" >2.3. JPA\u63d0\u793a\uff08\u4ee3\u7801\u81ea\u52a8\u8865\u5168\uff0c\u540c\u65f6\u5728xml\u4e2d\u751f\u6210\u5bf9\u5e94\u7684SQL\u8bed\u53e5\uff09<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/dba.qishuo.xin\/?p=1395\/#3_%E7%BB%93%E8%AF%AD\" >3. \u7ed3\u8bed<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"1_%E7%AE%80%E4%BB%8B\"><\/span>1. \u7b80\u4ecb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>MybatisX \u662f\u4e00\u6b3e\u57fa\u4e8e IDEA \u7684\u5feb\u901f\u5f00\u53d1\u63d2\u4ef6\uff0c\u4e3a\u6548\u7387\u800c\u751f\u3002<br \/>\n\u867d\u7136\u8fd9\u6b3e\u63d2\u4ef6\u529f\u80fd\u6bd4\u8f83\u597d\u7528\uff0c\u4f46\u662f\u5176\u5374\u662f\u5168\u82f1\u6587\u7684\u63d2\u4ef6\uff0c\u5e76\u4e14\u6709\u4e9b\u9009\u9879\u96be\u4ee5\u4ece\u5b57\u9762\u610f\u4e49\u4e0a\u7406\u89e3\uff0c\u800c\u5b98\u65b9\u7684\u6587\u6863\u8bf4\u660e\u4e0d\u591f\u5b8c\u5584\uff0c\u56e0\u6b64\u7279\u64b0\u5199\u672c\u6587\u5e2e\u52a9\u540e\u6765\u8005\u6392\u5751\u3002<\/p>\n<p>\u9700\u8981\u642d\u914d\u4ee5\u4e0b\u4e00\u8d77\u4f7f\u7528\uff1a<\/p>\n<ul>\n<li>SpringBoot<\/li>\n<li>MybatisPlus(\u4e5f\u53ef\u4ee5\u4e0d\u642d\u914d\uff0c\u4f46\u662f\u6548\u679c\u5c31\u6ca1\u90a3\u4e48\u597d\u4e86)<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"2_%E5%BF%AB%E9%80%9F%E4%B8%8A%E6%89%8B\"><\/span>2. \u5feb\u901f\u4e0a\u624b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u9996\u5148\u5728idea\u4e2d\u7684\u63d2\u4ef6\u641c\u7d22MybatisX\u4e0b\u8f7d,\u5e76\u5b89\u88c5\u3002<\/strong><br \/>\n\u70b9\u51fb\u83dc\u5355 File >> Settings... \u7136\u540e\u5728Plugins\u7684Marketplace\u4e2d\u641c\u7d22 MyBatisX\uff0c\u6700\u540e\u8fdb\u884c\u5b89\u88c5\u3002<\/p>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_9346b9e3e8ea0140ad7e3c22e1ea42e9.jpg\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_9346b9e3e8ea0140ad7e3c22e1ea42e9.jpg\" alt=\"\" \/><\/a><\/p>\n<h4><span class=\"ez-toc-section\" id=\"21_%E7%94%9F%E6%88%90%E4%BB%A3%E7%A0%81%E5%8A%9F%E8%83%BD\"><\/span>2.1. \u751f\u6210\u4ee3\u7801\u529f\u80fd<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\uff081\uff09\u5728idea\u4e2d\u914d\u7f6e\u597d\u6570\u636e\u6e90\uff0c\u53f3\u952e\u9700\u8981\u751f\u6210\u4ee3\u7801\u7684\u8868\u540d\uff0c\u70b9\u51fb <code>MybatisX-Generator<\/code> \u9009\u9879:<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_7d4f826422de834855af5f4bca73a9db.jpg\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_7d4f826422de834855af5f4bca73a9db.jpg\" alt=\"\" \/><\/a><\/p>\n<p>\u5f39\u51fa\u5982\u4e0b\u754c\u9762:<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_ce0b53d50ef2329d4a59c59c43883764.jpg\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_ce0b53d50ef2329d4a59c59c43883764.jpg\" alt=\"\" \/><\/a><\/p>\n<p>\u90e8\u5206\u53c2\u6570\u8bf4\u660e\uff1a<\/p>\n<ul>\n<li>module path\uff1a\u6a21\u5757\u8def\u5f84\uff0c\u6b64\u5904\u586b\u5199\u9879\u76ee\u6240\u5728\u8def\u5f84\uff0c\u751f\u6210\u7684\u4ee3\u7801\u4f1a\u5728\u76f8\u5e94\u4f4d\u7f6e\u3002<\/li>\n<li>basepackage\uff1a\u586b\u5199\u9879\u76ee\u7684\u5305\u3002<span style='color:red'>\u6ce8\u610f\u4fee\u6539\u4e3a\u81ea\u5df1\u9879\u76ee\u7684\u5305\u540d<\/span><\/li>\n<li>encoding\uff1a\u7f16\u7801\uff0c\u4f7f\u7528UTF-8\u5373\u53ef<\/li>\n<li>base path\uff1a\u4ee3\u7801\u6240\u5728\u8def\u5f84\uff0c\u4fdd\u6301\u9ed8\u8ba4<\/li>\n<li>relative package\uff1a<span style='color:red'>\u51b3\u5b9a\u5b9e\u4f53\u7c7b\u4f1a\u88ab\u751f\u6210\u5728\u54ea\u91cc\uff0c\u9ed8\u8ba4\u751f\u6210\u5728domain\u5305\u4e2d\uff0c\u53ef\u4ee5\u4fee\u6539\u4e3a\u5176\u4ed6\u5305\u4f46\u4e0d\u8981\u4e3a\u7a7a\u3002<\/span><\/li>\n<li>extra class suffix\uff1a\u751f\u6210\u7684\u5b9e\u4f53\u7c7b\u540e\u9762\u4f1a\u52a0\u4e0a\u91cc\u9762\u7684\u5185\u5bb9\u3002\u4e3e\u4f8b\uff1a\u56fe\u4e2d\u5982\u679c\u8fd9\u91cc\u5199\u5165Test\uff0c\u6700\u540e\u751f\u6210\u5b9e\u4f53\u7c7b\u4f1a\u53ebFilesTest<\/li>\n<li>superClass\uff1a\u751f\u6210\u5b9e\u4f53\u7c7b\u7ee7\u627f\u7684\u7236\u7c7b<\/li>\n<li>ignore xxx\uff1a\u751f\u6210\u5b9e\u4f53\u7c7b\u76f8\u5e94\u5b57\u6bb5\u4e2d\u5ffd\u7565\u6307\u5b9a\u7684\u524d\u7f00\/\u540e\u7f00\uff0c\u4ee5\u4e0b\u4e3a\u4e3e\u4f8b\uff1a<br \/>\n\u6570\u636e\u5e93\u4e2d\u6709\u5b57\u6bb5\u540d\u79f0\u4e3atype\uff0c\u82e5ignore field prefix\u53c2\u6570\u8bbe\u7f6e\u4e3aty\uff0c\u5219\u751f\u6210\u5b9e\u4f53\u7c7b\u4e2d\u76f8\u5e94\u7684\u5c5e\u6027\u540d\u4e3ape\uff0c\u5ffd\u7565\u4e86ty\uff1b<br \/>\n\u6570\u636e\u5e93\u540d\u4e3afiles\uff0c\u82e5ignore table prefix\u8bbe\u7f6e\u4e3a\u4e3afi\uff0c\u5219\u751f\u6210\u7684\u5b9e\u4f53\u7c7b\u7684\u540d\u5b57\u53d8\u4e3aLes\uff0c\u5ffd\u7565\u4e86fi\u3002<\/li>\n<\/ul>\n<p>\uff082\uff09\u70b9\u51fbnext\u540e\uff0c\u4e0b\u4e00\u6b65\u4e3a\u751f\u6210mapper\u3001service\u7b49<\/p>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_638406545e20887ac7fb0065b33d1256.jpg\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_638406545e20887ac7fb0065b33d1256.jpg\" alt=\"\" \/><\/a><\/p>\n<p>\u53c2\u6570\u8bf4\u660e\uff1a<\/p>\n<ul>\n<li>annotation\uff1a\u751f\u6210\u7684\u4ee3\u7801\u4e2d\u662f\u5426\u52a0\u4e0a\u6ce8\u89e3\uff08\u4f8b\u5982\uff0c@TableName\u7b49\u6ce8\u89e3\uff09\u3002None\u4e3a\u6ca1\u6709\u6ce8\u89e3\uff0c\u5176\u4ed6\u4e3a\u5b57\u9762\u610f\u601d\u3002<\/p>\n<\/li>\n<li>\n<p>options\u5404\u9009\u9879\u7ecf\u8fc7\u5c1d\u8bd5\u540e\uff0c\u4f5c\u7528\u5927\u81f4\u5982\u4e0b<br \/>\ncomment\uff1a\u53ef\u80fd\u548c\u751f\u6210java doc comments\u6709\u5173\uff0c\u4f46\u8bd5\u4e86\u4e0b\uff0c\u597d\u50cf\u6ca1\u6709\u6548\u679c\u3002<br \/>\ntoString\/hashCode\/equals\uff1a\u662f\u5426\u751f\u6210\u76f8\u5e94\u7684\u65b9\u6cd5\uff1b\u5efa\u8bae\u52fe\u9009\u3002<br \/>\nLombok\uff1a\u52fe\u9009\u540e\u5b9e\u4f53\u7c7b\u81ea\u52a8\u6dfb\u52a0Lombok\u7684@Data\u6ce8\u89e3\uff1b\u5efa\u8bae\u52fe\u9009\uff08\u5efa\u8bae\u5b89\u88c5Lombok\uff09<br \/>\nActual Column\uff1a\u52fe\u9009\u540e\uff0c\u751f\u6210\u7684\u5b9e\u4f53\u7c7b\u5c5e\u6027\u540d\u548c\u8868\u4e2d\u5b57\u6bb5\u540d\u5927\u5c0f\u5199\u4f1a\u4fdd\u6301\u4e00\u81f4\u3002(actual [\u02c8\u00e6kt\u0283u\u0259l] adj.\u771f\u5b9e\u7684\uff1b\u5b9e\u9645\u7684\uff1b) \u4f8b\u5982\uff0c\u8868\u4e2d\u6709\u5b57\u6bb5classID\uff0c\u52fe\u9009\u8be5\u9009\u9879\u540e\u751f\u6210\u7684\u5c5e\u6027\u540d\u4e5f\u4e3aclassID\uff0c\u672a\u52fe\u9009\u5219\u4e3aclassid\u3002\u5efa\u8bae\u6839\u636e\u5b9e\u9645\u9700\u8981\u52fe\u9009\u3002<br \/>\nActual Column Annotation\uff1a\u662f\u5426\u5bf9\u6240\u6709\u5c5e\u6027\u540d\u90fd\u52a0\u4e0a\u6ce8\u89e3\u6807\u660e\u5bf9\u5e94\u5b57\u6bb5\uff0c\u4f8b\u5982@TableName\u3002\u5efa\u8bae\u52fe\u9009\u3002<br \/>\nJSR310:Data API\uff1a\u662f\u5426\u4f7f\u7528\u65b0\u6807\u51c6\u7684\u65f6\u95f4\u65e5\u671fAPI\uff0c\u5305\u62ec Instant\u3001Clock\u3001LocalDateTime\u3001DateTimeFormatter\u3001ZonedDateTime \u4ee5\u53ca\u66ff\u6362 Calendar \u7684 Chronology \u7b49\u7c7b\u3002\u5efa\u8bae\u52fe\u9009\uff08\u65b0\u6807\u51c6\u7684\u65f6\u95f4\u65e5\u671fAPI\u6bd4\u8001\u7248\u672c\u53cb\u597d\u591a\u4e86\uff0c\u5f3a\u70c8\u5efa\u8bae\u4f7f\u7528\u65b0\u7248\u65f6\u95f4\u65e5\u671fAPI\uff09\u3002<\/p>\n<\/li>\n<li>\n<p>template\uff1a\u751f\u6210mapper\u3001service\u7b49\u76f8\u5173\u4ee3\u7801\u6240\u4f7f\u7528\u7684\u6a21\u677f\u3002<br \/>\ntemplate\u53ef\u4ee5\u4fee\u6539\uff0c\u9ed8\u8ba4\u4f4d\u4e8e \u8349\u7a3f\u548c\u63a7\u5236\u53f0\u2014\u2014\u6269\u5c55\u2014\u2014MybatisX \u3002\u5bf9\u5e94\u6587\u4ef6\u5939\u5185\u5373\u4e3a\u76f8\u5173\u6a21\u677f\u7684\u5177\u4f53\u914d\u7f6e\u6587\u4ef6\u3002\u5982\u679c\u9700\u8981\u91cd\u7f6e\uff0c\u53f3\u952etemplate\u6587\u4ef6\u5939\u70b9\u51fb\u91cd\u7f6e\u9ed8\u8ba4\u6269\u5c55\u5373\u53ef\u3002<br \/>\n\u5982\u679c\u6ca1\u6709\u4f7f\u7528MybatisPlus\uff0c\u53ef\u4ee5\u9009\u62e9default-empty\u6a21\u677f\u3002\u6216\u81ea\u5b9a\u4e49\u5176\u4ed6\u6a21\u677f\u3002<br \/>\n<span style='color:red'>\u6ce8\u610fMyBatis-Plus\u7684\u7248\u672c\uff0c\u4e0d\u540c\u7248\u672c\u5bf9\u5e94\u7684\u6a21\u677f\u662f\u4e0d\u4e00\u6837\u7684\u3002<\/span><\/p>\n<\/li>\n<li>\n<p>\u6700\u5e95\u4e0b\u7684\u8868\uff1a\u663e\u793a\u6240\u8981\u751f\u6210\u6587\u4ef6\u7684\u7c7b\u578b\u3001\u6a21\u5757\u8def\u5f84\u3001\u57fa\u672c\u8def\u5f84\u3001\u751f\u6210\u540e\u4f4d\u4e8e\u54ea\u4e2a\u5305\u3002\u540e\u9762\u4e09\u4e2a\u5217\u90fd\u53ef\u4ee5\u4fee\u6539\u503c\u4ee5\u7b26\u5408\u9879\u76ee\u9700\u8981\u3002\u8fd9\u4e9b\u4e5f\u53ef\u4ee5\u5728\u5bf9\u5e94\u7684template\u7684\u6587\u4ef6\u5939\u5185\u7684.meta.xml\u4e2d\u8fdb\u884c\u4fee\u6539\u3002<br \/>\n\u53ef\u4ee5\u5220\u9664\u4e0d\u9700\u8981\u7684\u7c7b\u3002<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_a551eb36cfae10544b938ce92bf44396.jpg\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_a551eb36cfae10544b938ce92bf44396.jpg\" alt=\"\" \/><\/a><\/p>\n<\/li>\n<\/ul>\n<p>\uff083\uff09\u70b9\u51fbFinish\u5373\u5b8c\u6210\u5bf9\u5e94\u4ee3\u7801\u7684\u751f\u6210\u3002<\/p>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_2048d6bdfc038ac4621be457283e06f7.jpg\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_2048d6bdfc038ac4621be457283e06f7.jpg\" alt=\"\" \/><\/a><\/p>\n<p><span style='color:red'>\u5728\u751f\u6210\u4ee3\u7801\u540e\uff0c\u4e00\u822c\u4f1a\u5728entity\u4e0a\u589e\u52a0 @AllArgsConstructor \u6ce8\u89e3 \u4e0e @NoArgsConstructor\u6ce8\u89e3\uff0c\u540c\u65f6\u5728mapper\u4e0a\u589e\u52a0\uff1a@Repository\u6ce8\u89e3\uff0c\u540c\u65f6\u5728service\u7684\u5b9e\u73b0\u7c7b\u4e0a\u589e\u52a0 @Service 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class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u5b89\u88c5\u8be5\u63d2\u4ef6\u540e\uff0c\u5bf9\u5e94\u7684mapper\u548cmapperxml\u56fe\u6807\u53d8\u6210\u84dd\u9e1f\u548c\u7ea2\u9e1f\u3002\u5728\u4ee3\u7801\u884c\u53f7\u7684\u53f3\u4fa7\u70b9\u51fb\u76f8\u5e94\u7684\u84dd\u9e1f\u548c\u7ea2\u9e1f\u56fe\u6807\u5373\u53ef\u5feb\u901f\u8df3\u8f6c\u5230\u5bf9\u5e94\u90e8\u5206\uff0c\u65b9\u4fbf\u4fee\u6539\u3002\uff08\u5982\u679c\u4ee3\u7801\u4f7f\u7528@Insert\u7b49\u6ce8\u89e3\u800c\u4e0d\u662f\u5728xml\u4e2d\u5b9e\u73b0SQL\u4ee3\u7801\uff0c\u5219\u5de6\u4fa7\u4e0d\u4f1a\u663e\u793a\u76f8\u5e94\u56fe\u6807\uff09<\/p>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_732ba162c0fa682e90754cbc86fb4fd1.jpg\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2022\/03\/wp_editor_md_732ba162c0fa682e90754cbc86fb4fd1.jpg\" alt=\"\" \/><\/a><\/p>\n<h4><span class=\"ez-toc-section\" id=\"23_JPA%E6%8F%90%E7%A4%BA%EF%BC%88%E4%BB%A3%E7%A0%81%E8%87%AA%E5%8A%A8%E8%A1%A5%E5%85%A8%EF%BC%8C%E5%90%8C%E6%97%B6%E5%9C%A8xml%E4%B8%AD%E7%94%9F%E6%88%90%E5%AF%B9%E5%BA%94%E7%9A%84SQL%E8%AF%AD%E5%8F%A5%EF%BC%89\"><\/span>2.3. 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