{"id":6705,"date":"2024-11-14T11:53:48","date_gmt":"2024-11-14T03:53:48","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6705\/"},"modified":"2024-11-14T11:53:48","modified_gmt":"2024-11-14T03:53:48","slug":"%e5%a6%82%e4%bd%95%e8%ae%b0%e5%bd%95-jdbctemplate-batchupdate-%e4%b8%ad%e6%9b%b4%e6%96%b0%e4%b8%8d%e5%8c%b9%e9%85%8d%e7%9a%84%e8%ae%b0%e5%bd%95%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6705\/","title":{"rendered":"\u5982\u4f55\u8bb0\u5f55 JdbcTemplate.batchUpdate \u4e2d\u66f4\u65b0\u4e0d\u5339\u914d\u7684\u8bb0\u5f55\uff1f"},"content":{"rendered":"

\"\u5982\u4f55\u8bb0\u5f55<\/p>\n

\u5982\u4f55\u5728 jdbctemplate.batchupdate \u4e2d\u8bb0\u5f55\u66f4\u65b0\u4e0d\u5339\u914d\u7684\u8bb0\u5f55<\/strong><\/p>\n

jdbctemplate \u63d0\u4f9b\u4e86 batchupdate \u65b9\u6cd5\uff0c\u5141\u8bb8\u6279\u91cf\u6267\u884c\u66f4\u65b0\u8bed\u53e5\u3002\u7136\u800c\uff0c\u5f53\u7279\u5b9a where \u5b50\u53e5\u6761\u4ef6\u4e0d\u5339\u914d\u65f6\uff0c\u8be5\u65b9\u6cd5\u65e0\u6cd5\u63d0\u4f9b\u6709\u5173\u672a\u66f4\u65b0\u8bb0\u5f55\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u89e3\u51b3\u6b64\u95ee\u9898\uff1a<\/p>\n

jdbctemplate \u7684 batchupdate \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a int[] \u6570\u7ec4\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u8868\u793a\u6210\u529f\u66f4\u65b0\u7684\u8bb0\u5f55\u6570\u3002\u8981\u8bb0\u5f55\u672a\u66f4\u65b0\u7684\u8bb0\u5f55\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n

    \n
  1. \u904d\u5386 valuelist \u4e2d\u7684\u6bcf\u4e2a\u503c\u5143\u7ec4 [i, orderid]:<\/li>\n<\/ol>\n
    for (object[] value : valuelist) {\n    int i = (int) value[0];\n    int orderid = (int) value[1];\n}<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \n
    1. \u4f7f\u7528 jdbctemplate.query \u67e5\u8be2 update \u8bed\u53e5\u53d7\u5f71\u54cd\u7684\u884c\u6570:<\/li>\n<\/ol>\n
      int[] updatedRows = jdbcTemplate.batchUpdate(sql, valueList);\nfor (int i = 0; i < updatedRows.length; i++) {\n    int affectedRows = updatedRows[i];\n    if (affectedRows == 0) {\n        \/\/ \u8bb0\u5f55\u6ca1\u6709\u5339\u914d\u7684\u8bb0\u5f55\n        System.out.println(\"\u672a\u66f4\u65b0\u7684\u8bb0\u5f55: \" + valueList[i]);\n    }\n}<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5730\u8bb0\u5f55\u7531\u4e8e where \u5b50\u53e5\u6761\u4ef6\u4e0d\u5339\u914d\u800c\u672a\u66f4\u65b0\u7684\u8bb0\u5f55\u3002<\/p>\n
      \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u8bb0\u5f55 JdbcTemplate.batchUpdate \u4e2d\u66f4\u65b0\u4e0d\u5339\u914d\u7684\u8bb0\u5f55\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5982\u4f55\u5728 jdbctemplate.batchupdate \u4e2d\u8bb0\u5f55\u66f4\u65b0\u4e0d\u5339\u914d\u7684\u8bb0\u5f55 jdbctemplate \u63d0\u4f9b\u4e86 batchupdate \u65b9\u6cd5\uff0c\u5141\u8bb8\u6279\u91cf\u6267\u884c\u66f4\u65b0\u8bed\u53e5\u3002\u7136\u800c\uff0c\u5f53\u7279\u5b9a where \u5b50\u53e5\u6761\u4ef6\u4e0d\u5339\u914d\u65f6\uff0c\u8be5\u65b9\u6cd5\u65e0\u6cd5\u63d0\u4f9b\u6709\u5173\u672a\u66f4\u65b0\u8bb0\u5f55\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u89e3\u51b3\u6b64\u95ee\u9898\uff1a jdbctemplate \u7684 batchupdate \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a int[] \u6570\u7ec4\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u8868\u793a\u6210\u529f\u66f4\u65b0\u7684\u8bb0\u5f55\u6570\u3002\u8981\u8bb0\u5f55\u672a\u66f4\u65b0\u7684\u8bb0\u5f55\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\uff1a \u904d\u5386 valuelist \u4e2d\u7684\u6bcf\u4e2a\u503c\u5143\u7ec4 [i, orderid]: for (object[] value : valuelist) { int i = (int) value[0]; int orderid = (int) value[1]; } \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 jdbctemplate.query \u67e5\u8be2 update \u8bed\u53e5\u53d7\u5f71\u54cd\u7684\u884c\u6570: int[] updatedRows = jdbcTemplate.batchUpdate(sql, valueList); for (int i = 0; i < […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-6705","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6705","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=6705"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6705\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}