{"id":6867,"date":"2024-11-14T09:03:04","date_gmt":"2024-11-14T01:03:04","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6867\/"},"modified":"2024-11-14T09:03:04","modified_gmt":"2024-11-14T01:03:04","slug":"mybatis-plus-%e4%b9%90%e8%a7%82%e9%94%81%e5%a4%b1%e6%95%88%ef%bc%9a%e4%b8%ba%e4%bb%80%e4%b9%88%e7%89%88%e6%9c%ac%e5%ad%97%e6%ae%b5%e6%b2%a1%e6%9c%89%e8%87%aa%e5%a2%9e%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6867\/","title":{"rendered":"MyBatis-Plus \u4e50\u89c2\u9501\u5931\u6548\uff1a\u4e3a\u4ec0\u4e48\u7248\u672c\u5b57\u6bb5\u6ca1\u6709\u81ea\u589e\uff1f"},"content":{"rendered":"

\"MyBatis-Plus<\/p>\n

mybatis-plus\u4e50\u89c2\u9501\u8bbe\u7f6e\u65e0\u6548\u7684\u539f\u56e0\u63a2\u8ba8<\/strong><\/p>\n

\u5728\u4f7f\u7528mybatis-plus\u65f6\uff0c\u4e50\u89c2\u9501\u673a\u5236\u5931\u6548\u7684\u60c5\u51b5\u65f6\u6709\u53d1\u751f\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u5bfc\u81f4\u4e50\u89c2\u9501\u65e0\u6548\u7684\u6f5c\u5728\u539f\u56e0\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u89e3\u51b3\u6b64\u95ee\u9898\u3002<\/p>\n

\u95ee\u9898<\/strong><\/p>\n

\u7528\u6237\u5728\u4f7f\u7528mybatis-plus\u8fdb\u884c\u4e50\u89c2\u9501\u63a7\u5236\u65f6\u53d1\u73b0\u9501\u5931\u6548\uff0c\u6570\u636e\u5e93\u4e2d\u7684version\u5b57\u6bb5\u5e76\u672a\u81ea\u589e\u3002\u4ee5\u4e0b\u662f\u4ee3\u7801\u7247\u6bb5\uff1a<\/p>\n

Goods goods = goodsService.getOne(Wrappers.<Goods>lambdaQuery()\n                   .eq(Goods::getId, orderGoods.getId()));\ngoods.setStock()\n\ngoodsService.updateById(goods)<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u539f\u56e0<\/strong><\/p>\n
\u5bfc\u81f4\u4e50\u89c2\u9501\u65e0\u6548\u7684\u539f\u56e0\u6709\u5f88\u591a\u79cd\uff0c\u4ee5\u4e0b\u5217\u51fa\u4e3b\u8981\u53ef\u80fd\u6027\uff1a<\/p>\n
    \n
  • \u6570\u636e\u5e93version\u5b57\u6bb5\u4e3anull<\/strong><\/li>\n<\/ul>\n
    \u4e50\u89c2\u9501\u7684\u5b9e\u73b0\u539f\u7406\u662f\u6bd4\u8f83\u6570\u636e\u5e93\u4e2d\u8bb0\u5f55\u7684version\u5b57\u6bb5\u4e0e\u5b9e\u4f53\u7c7b\u4e2d\u7684version\u5b57\u6bb5\u662f\u5426\u4e00\u81f4\u3002\u5982\u679c\u6570\u636e\u5e93\u4e2d\u7684version\u5b57\u6bb5\u4e3anull\uff0c\u5219\u65e0\u6cd5\u8fdb\u884c\u6bd4\u8f83\uff0c\u4e50\u89c2\u9501\u81ea\u7136\u4e5f\u5c31\u5931\u6548\u4e86\u3002\u786e\u4fdd\u6570\u636e\u5e93\u4e2dversion\u5b57\u6bb5\u4e0d\u4e3anull\u81f3\u5173\u91cd\u8981\u3002<\/p>\n
      \n
    • \u5176\u4ed6\u6761\u4ef6\u672a\u6ee1\u8db3<\/strong><\/li>\n<\/ul>\n
      \u9664\u4e86version\u5b57\u6bb5\u5916\uff0c\u5bf9\u4e8e\u4e50\u89c2\u9501\u7684\u6709\u6548\u6027\uff0c\u53ef\u80fd\u8fd8\u6709\u5176\u4ed6\u9644\u52a0\u6761\u4ef6\uff0c\u4f8b\u5982\uff1a<\/p>\n
        \n
      • \u5b9e\u4f53\u7c7b\u4e2dversion\u5b57\u6bb5\u4e0a\u52a0\u4e86@version\u6ce8\u89e3<\/strong><\/li>\n
      • \u9700\u8981\u5728mapper.xml\u6587\u4ef6\u4e2d\u6ce8\u518c\u4e50\u89c2\u9501\u63d2\u4ef6<\/strong><\/li>\n
      • mapper.xml\u4e2d\u5bf9\u5e94\u7684\u65b9\u6cd5\u4e2d\u4f7f\u7528\u4e86version\u5b57\u6bb5\u8fdb\u884c\u6bd4\u8f83<\/strong><\/li>\n<\/ul>\n
        \u4ed4\u7ec6\u68c0\u67e5\u8fd9\u4e9b\u6761\u4ef6\u662f\u5426\u90fd\u5df2\u6ee1\u8db3\u3002<\/p>\n
          \n
        • \u5176\u4ed6\u539f\u56e0<\/strong><\/li>\n<\/ul>\n
          \u8fd8\u6709\u4e00\u4e9b\u5176\u4ed6\u56e0\u7d20\u53ef\u80fd\u5bfc\u81f4\u4e50\u89c2\u9501\u65e0\u6548\uff0c\u4f8b\u5982\uff1a<\/p>\n
            \n
          • \u6570\u636e\u5e93\u8868\u7ed3\u6784\u53d8\u66f4<\/strong><\/li>\n
          • \u4f7f\u7528\u539f\u751fsql\u66f4\u65b0\u6570\u636e<\/strong><\/li>\n
          • \u7248\u672c\u51b2\u7a81<\/strong><\/li>\n<\/ul>\n
            \u603b\u4e4b\uff0c\u786e\u4fddversion\u5b57\u6bb5\u6709\u503c\u5e76\u6ee1\u8db3\u5176\u4ed6\u6761\u4ef6\u662f\u4e50\u89c2\u9501\u751f\u6548\u7684\u5173\u952e\u3002\u4ed4\u7ec6\u68c0\u67e5\u4e0a\u8ff0\u5404\u4e2a\u73af\u8282\uff0c\u9010\u4e00\u6392\u9664\u6f5c\u5728\u95ee\u9898\uff0c\u624d\u80fd\u6700\u7ec8\u89e3\u51b3\u4e50\u89c2\u9501\u5931\u6548\u7684\u95ee\u9898\u3002<\/p>\n
            \u4ee5\u4e0a\u5c31\u662fMyBatis-Plus \u4e50\u89c2\u9501\u5931\u6548\uff1a\u4e3a\u4ec0\u4e48\u7248\u672c\u5b57\u6bb5\u6ca1\u6709\u81ea\u589e\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":"
            mybatis-plus\u4e50\u89c2\u9501\u8bbe\u7f6e\u65e0\u6548\u7684\u539f\u56e0\u63a2\u8ba8 \u5728\u4f7f\u7528mybatis-plus\u65f6\uff0c\u4e50\u89c2\u9501\u673a\u5236\u5931\u6548\u7684\u60c5\u51b5\u65f6\u6709\u53d1\u751f\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u5bfc\u81f4\u4e50\u89c2\u9501\u65e0\u6548\u7684\u6f5c\u5728\u539f\u56e0\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u89e3\u51b3\u6b64\u95ee\u9898\u3002 \u95ee\u9898 \u7528\u6237\u5728\u4f7f\u7528mybatis-plus\u8fdb\u884c\u4e50\u89c2\u9501\u63a7\u5236\u65f6\u53d1\u73b0\u9501\u5931\u6548\uff0c\u6570\u636e\u5e93\u4e2d\u7684version\u5b57\u6bb5\u5e76\u672a\u81ea\u589e\u3002\u4ee5\u4e0b\u662f\u4ee3\u7801\u7247\u6bb5\uff1a Goods goods = goodsService.getOne(Wrappers.<Goods>lambdaQuery() .eq(Goods::getId, orderGoods.getId())); goods.setStock() goodsService.updateById(goods) \u767b\u5f55\u540e\u590d\u5236 \u539f\u56e0 \u5bfc\u81f4\u4e50\u89c2\u9501\u65e0\u6548\u7684\u539f\u56e0\u6709\u5f88\u591a\u79cd\uff0c\u4ee5\u4e0b\u5217\u51fa\u4e3b\u8981\u53ef\u80fd\u6027\uff1a \u6570\u636e\u5e93version\u5b57\u6bb5\u4e3anull \u4e50\u89c2\u9501\u7684\u5b9e\u73b0\u539f\u7406\u662f\u6bd4\u8f83\u6570\u636e\u5e93\u4e2d\u8bb0\u5f55\u7684version\u5b57\u6bb5\u4e0e\u5b9e\u4f53\u7c7b\u4e2d\u7684version\u5b57\u6bb5\u662f\u5426\u4e00\u81f4\u3002\u5982\u679c\u6570\u636e\u5e93\u4e2d\u7684version\u5b57\u6bb5\u4e3anull\uff0c\u5219\u65e0\u6cd5\u8fdb\u884c\u6bd4\u8f83\uff0c\u4e50\u89c2\u9501\u81ea\u7136\u4e5f\u5c31\u5931\u6548\u4e86\u3002\u786e\u4fdd\u6570\u636e\u5e93\u4e2dversion\u5b57\u6bb5\u4e0d\u4e3anull\u81f3\u5173\u91cd\u8981\u3002 \u5176\u4ed6\u6761\u4ef6\u672a\u6ee1\u8db3 \u9664\u4e86version\u5b57\u6bb5\u5916\uff0c\u5bf9\u4e8e\u4e50\u89c2\u9501\u7684\u6709\u6548\u6027\uff0c\u53ef\u80fd\u8fd8\u6709\u5176\u4ed6\u9644\u52a0\u6761\u4ef6\uff0c\u4f8b\u5982\uff1a \u5b9e\u4f53\u7c7b\u4e2dversion\u5b57\u6bb5\u4e0a\u52a0\u4e86@version\u6ce8\u89e3 \u9700\u8981\u5728mapper.xml\u6587\u4ef6\u4e2d\u6ce8\u518c\u4e50\u89c2\u9501\u63d2\u4ef6 mapper.xml\u4e2d\u5bf9\u5e94\u7684\u65b9\u6cd5\u4e2d\u4f7f\u7528\u4e86version\u5b57\u6bb5\u8fdb\u884c\u6bd4\u8f83 \u4ed4\u7ec6\u68c0\u67e5\u8fd9\u4e9b\u6761\u4ef6\u662f\u5426\u90fd\u5df2\u6ee1\u8db3\u3002 \u5176\u4ed6\u539f\u56e0 \u8fd8\u6709\u4e00\u4e9b\u5176\u4ed6\u56e0\u7d20\u53ef\u80fd\u5bfc\u81f4\u4e50\u89c2\u9501\u65e0\u6548\uff0c\u4f8b\u5982\uff1a \u6570\u636e\u5e93\u8868\u7ed3\u6784\u53d8\u66f4 \u4f7f\u7528\u539f\u751fsql\u66f4\u65b0\u6570\u636e \u7248\u672c\u51b2\u7a81 \u603b\u4e4b\uff0c\u786e\u4fddversion\u5b57\u6bb5\u6709\u503c\u5e76\u6ee1\u8db3\u5176\u4ed6\u6761\u4ef6\u662f\u4e50\u89c2\u9501\u751f\u6548\u7684\u5173\u952e\u3002\u4ed4\u7ec6\u68c0\u67e5\u4e0a\u8ff0\u5404\u4e2a\u73af\u8282\uff0c\u9010\u4e00\u6392\u9664\u6f5c\u5728\u95ee\u9898\uff0c\u624d\u80fd\u6700\u7ec8\u89e3\u51b3\u4e50\u89c2\u9501\u5931\u6548\u7684\u95ee\u9898\u3002 \u4ee5\u4e0a\u5c31\u662fMyBatis-Plus \u4e50\u89c2\u9501\u5931\u6548\uff1a\u4e3a\u4ec0\u4e48\u7248\u672c\u5b57\u6bb5\u6ca1\u6709\u81ea\u589e\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},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-6867","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6867","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=6867"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6867\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6867"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6867"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}