{"id":3919,"date":"2022-09-08T14:41:13","date_gmt":"2022-09-08T06:41:13","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=3919"},"modified":"2022-09-08T14:41:13","modified_gmt":"2022-09-08T06:41:13","slug":"mybatis%e6%89%b9%e9%87%8f%e6%8f%92%e5%85%a5%e6%85%a2","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=3919","title":{"rendered":"mybatis\u6279\u91cf\u63d2\u5165\u6162"},"content":{"rendered":"\n<p>1.\u6279\u91cf\u63d2\u5165\u7684\u4ee3\u7801<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public void batchInsertAll(List&lt;Video> list) {\n        int pointsDataLimit = 2000;\n        int listSize = list.size();\n        int maxSize = listSize - 1;\n        List&lt;Video> newList = new ArrayList&lt;Video>();\/\/ \u65b0\u5efa\u4e00\u4e2a\u8f7d\u4f53list\n        StopWatch sw = new StopWatch();\n        int j = 1;\n        for (int i = 0; i &lt; listSize; i++) {\n            \/\/ \u5206\u6279\u6b21\u5904\u7406\n            newList.add(list.get(i));\/\/ \u5faa\u73af\u5c06\u6570\u636e\u586b\u5165\u8f7d\u4f53list\n            if (pointsDataLimit == newList.size() || i == maxSize) { \/\/ \u8f7d\u4f53list\u8fbe\u5230\u8981\u6c42,\u8fdb\u884c\u6279\u91cf\u64cd\u4f5c\n                sw.start(\"\u89c6\u9891\u6d4b\u8bd5\u6570\u636e\u6279\u6b21\uff1a\" + j++);\n                \/\/ \u8c03\u7528\u6279\u91cf\u63d2\u5165\n                this.batchInsert(newList);\n                newList.clear();\/\/ \u6bcf\u6b21\u6279\u91cf\u64cd\u4f5c\u540e,\u6e05\u7a7a\u8f7d\u4f53list,\u7b49\u5f85\u4e0b\u6b21\u7684\u6570\u636e\u586b\u5165\n                sw.stop();\n            }\n        }\n        System.out.println(sw.prettyPrint());\n    }<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>private void batchInsert(List&lt;Video> list) {\n        \/\/ \u53ef\u4ee5\u6267\u884c\u6279\u91cf\u64cd\u4f5c\u7684sqlSession\n        SqlSession openSession = sqlSessionFactory.openSession(ExecutorType.BATCH);\n        VideoCustomMapper videoMapper = openSession.getMapper(VideoCustomMapper.class);\n        try {\n            list.forEach(video -> {\n                videoMapper.insertNotWithId(video);\n            });\n            openSession.commit();\n            openSession.clearCache();\n        } catch (Exception e) {\n            openSession.rollback();\n        } finally {\n            openSession.close();\n        }\n    }<\/code><\/pre>\n\n\n\n<p>2.\u63d2\u5165\u6162\u7684\u539f\u56e0\u53ca\u5904\u7406<\/p>\n\n\n\n<p>2.1 \u901a\u8fc7xrebel\u53ef\u4ee5\u770b\u51fa\u6765\uff0c\u5982\u679c\u6709\u4ee5\u4e0b\u4ee3\u7801\u8fd4\u56deid\uff0c\u4f1a\u5bfc\u81f4\u63d2\u5165\u5f88\u6162\uff0c\u6b64\u573a\u666f\u4e0b\u53bb\u9664<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&lt;selectKey keyProperty=\"id\" order=\"AFTER\" resultType=\"java.lang.Long\">\n  SELECT LAST_INSERT_ID()\n&lt;\/selectKey>\n\n2.2 \u94fe\u63a5\u53c2\u6570\uff0c\u589e\u52a0\n@rewriteBatchedStatements=true\n\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>1.\u6279\u91cf\u63d2\u5165\u7684\u4ee3\u7801 2.\u63d2\u5165\u6162\u7684\u539f\u56e0\u53ca\u5904\u7406 2.1 \u901a\u8fc7xrebel\u53ef\u4ee5\u770b\u51fa\u6765\uff0c\u5982\u679c\u6709\u4ee5\u4e0b\u4ee3\u7801\u8fd4\u56deid\uff0c\u4f1a\u5bfc\u81f4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,115],"tags":[252,233,223],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3919"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3919"}],"version-history":[{"count":4,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3919\/revisions"}],"predecessor-version":[{"id":3923,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3919\/revisions\/3923"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}