{"id":206160,"date":"2025-06-12T09:36:26","date_gmt":"2025-06-12T01:36:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206160\/"},"modified":"2025-06-12T09:36:26","modified_gmt":"2025-06-12T01:36:26","slug":"gorm%e4%b8%ad%e5%a6%82%e4%bd%95%e6%9f%a5%e8%af%a2%e5%8c%85%e5%90%ab%e5%a4%9a%e5%af%b9%e5%a4%9a%e5%85%b3%e8%81%94%e7%9a%84%e6%a8%a1%e5%9e%8b%e6%95%b0%e6%8d%ae%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206160\/","title":{"rendered":"GORM\u4e2d\u5982\u4f55\u67e5\u8be2\u5305\u542b\u591a\u5bf9\u591a\u5173\u8054\u7684\u6a21\u578b\u6570\u636e\uff1f"},"content":{"rendered":"

\u76ee\u524dGOLANG\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e
\nGOLANG<\/span>\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587
\n\u300aGORM\u4e2d\u5982\u4f55\u67e5\u8be2\u5305\u542b\u591a\u5bf9\u591a\u5173\u8054\u7684\u6a21\u578b\u6570\u636e\uff1f\u300b<\/span>\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60
\nGOLANG<\/span>\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~,
\n,
\ngorm\u4e2d\u67e5\u8be2\u5173\u8054\u6570\u636e<\/strong>,\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u5982\u4f55\u4f7f\u7528gorm\u67e5\u8be2\u5305\u542b\u591a\u5bf9\u591a\u5173\u8054\u7684\u6a21\u578b\u3002\u8ba9\u6211\u4eec\u8003\u8651\u4ee5\u4e0b\u6a21\u578b\u5173\u7cfb\uff1a,
\n\u6a21\u578b\u5b9a\u4e49\uff1a<\/strong>,
\n\u67e5\u8be2\u793a\u4f8b\uff1a<\/strong>,\u73b0\u5728\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u88681\u7684\u5b9e\u4f8b\uff0c\u5176id\u4e3a”id-1″\uff0c\u5e76\u4e14\u6211\u4eec\u5e0c\u671b\u83b7\u53d6\u4e0e\u8be5\u88681\u5173\u8054\u7684\u6240\u6709\u88683\u6570\u636e\u3002,
\n\u671f\u671b\u7684\u7ed3\u679c\uff1a<\/strong>,
\ngorm\u67e5\u8be2\uff1a<\/strong>,\u8981\u6267\u884c\u6b64\u67e5\u8be2\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bgorm\u4ee3\u7801\uff1a,
\n\u89e3\u91ca\uff1a<\/strong>,\u6267\u884c\u6b64\u67e5\u8be2\u540e\uff0cdata\u53d8\u91cf\u5c06\u5305\u542b\u6211\u4eec\u671f\u671b\u7684\u7ed3\u679c\uff0c\u5176\u4e2d\u5305\u542b\u4ece\u88681\u5f00\u59cb\uff0c\u901a\u8fc7\u88682\uff0c\u5173\u8054\u5230\u6240\u6709\u88683\u6570\u636e\u3002,\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aGORM\u4e2d\u5982\u4f55\u67e5\u8be2\u5305\u542b\u591a\u5bf9\u591a\u5173\u8054\u7684\u6a21\u578b\u6570\u636e\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01,db.preload(“table2.table3”)\uff1a\u6b64\u884c\u9884\u52a0\u8f7d\u4e86\u88682\u7684table3\u5173\u8054\u3002,db.preload(“table2”)\uff1a\u6b64\u884c\u9884\u52a0\u8f7d\u4e86\u88681\u7684table2\u5173\u8054\u3002,find(&data)\uff1a\u6b64\u884c\u67e5\u627e\u6240\u6709\u88681\u7684\u5b9e\u4f8b\u5e76\u586b\u5145\u9884\u52a0\u8f7d\u7684\u5173\u8054\u3002,gorm\u4e2d\u67e5\u8be2\u5173\u8054\u6570\u636e,\u76ee\u524dGOLANG\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e
\nGOLANG<\/span>\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587
\n\u300aGORM\u4e2d\u5982\u4f55\u67e5\u8be2\u5305\u542b\u591a\u5bf9\u591a\u5173\u8054\u7684\u6a21\u578b\u6570\u636e\uff1f\u300b<\/span>\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60
\nGOLANG<\/span>\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~,
\n<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> GORM\u4e2d\u5982\u4f55\u67e5\u8be2\u5305\u542b\u591a\u5bf9\u591a\u5173\u8054\u7684\u6a21\u578b\u6570\u636e\uff1f<\/span><\/p>\n

GORM\u4e2d\u5982\u4f55\u67e5\u8be2\u5305\u542b\u591a\u5bf9\u591a\u5173\u8054\u7684\u6a21\u578b\u6570\u636e\uff1f<\/h1>\n

2024-11-05 10:42:59<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u76ee\u524dGOLANG\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8eGOLANG<\/span>\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587\u300aGORM\u4e2d\u5982\u4f55\u67e5\u8be2\u5305\u542b\u591a\u5bf9\u591a\u5173\u8054\u7684\u6a21\u578b\u6570\u636e\uff1f\u300b<\/span>\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60GOLANG<\/span>\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~<\/p>\n

<\/p>\n

gorm\u4e2d\u67e5\u8be2\u5173\u8054\u6570\u636e<\/strong><\/p>\n

\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u5982\u4f55\u4f7f\u7528gorm\u67e5\u8be2\u5305\u542b\u591a\u5bf9\u591a\u5173\u8054\u7684\u6a21\u578b\u3002\u8ba9\u6211\u4eec\u8003\u8651\u4ee5\u4e0b\u6a21\u578b\u5173\u7cfb\uff1a<\/p>\n

\u6a21\u578b\u5b9a\u4e49\uff1a<\/strong><\/p>\n

type table1 struct {\n    id      string  `gorm:\"primary_key\"`\n    table2s []*table2 \/\/has many\n}\n\ntype table2 struct {\n    id      string      `gorm:\"primary_key\"`\n    table1id string\n    table3s []*table3   `gorm:\"many2many:table2_table3\"` \/\/many2many\n}\n\ntype table3 struct {\n    id string `gorm:\"primary_key\"`\n}<\/pre>\n
\u67e5\u8be2\u793a\u4f8b\uff1a<\/strong><\/p>\n
\u73b0\u5728\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u88681\u7684\u5b9e\u4f8b\uff0c\u5176id\u4e3a”id-1″\uff0c\u5e76\u4e14\u6211\u4eec\u5e0c\u671b\u83b7\u53d6\u4e0e\u8be5\u88681\u5173\u8054\u7684\u6240\u6709\u88683\u6570\u636e\u3002<\/p>\n
\u671f\u671b\u7684\u7ed3\u679c\uff1a<\/strong><\/p>\n
table1:{\n    id: \"id-1\",\n    table2s:[\n        {\n            id: \"table2-1\",\n            table3s:[\n                {id: \"table3-1\"},\n                {id: \"table3-2\"},\n                ...\n            ]\n        },\n        ...\n    ]\n}<\/pre>\n
gorm\u67e5\u8be2\uff1a<\/strong><\/p>\n
\u8981\u6267\u884c\u6b64\u67e5\u8be2\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bgorm\u4ee3\u7801\uff1a<\/p>\n
var data []Table1\ndb.Preload(\"Table2\").Preload(\"Table2.Table3\").Find(&data)<\/pre>\n
\u89e3\u91ca\uff1a<\/strong><\/p>\n
    \n
  • db.preload(“table2”)\uff1a\u6b64\u884c\u9884\u52a0\u8f7d\u4e86\u88681\u7684table2\u5173\u8054\u3002<\/li>\n
  • db.preload(“table2.table3”)\uff1a\u6b64\u884c\u9884\u52a0\u8f7d\u4e86\u88682\u7684table3\u5173\u8054\u3002<\/li>\n
  • find(&data)\uff1a\u6b64\u884c\u67e5\u627e\u6240\u6709\u88681\u7684\u5b9e\u4f8b\u5e76\u586b\u5145\u9884\u52a0\u8f7d\u7684\u5173\u8054\u3002<\/li>\n<\/ul>\n
    \u6267\u884c\u6b64\u67e5\u8be2\u540e\uff0cdata\u53d8\u91cf\u5c06\u5305\u542b\u6211\u4eec\u671f\u671b\u7684\u7ed3\u679c\uff0c\u5176\u4e2d\u5305\u542b\u4ece\u88681\u5f00\u59cb\uff0c\u901a\u8fc7\u88682\uff0c\u5173\u8054\u5230\u6240\u6709\u88683\u6570\u636e\u3002<\/p>\n
    \u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aGORM\u4e2d\u5982\u4f55\u67e5\u8be2\u5305\u542b\u591a\u5bf9\u591a\u5173\u8054\u7684\u6a21\u578b\u6570\u636e\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n
    \n
    \n <\/dt>\n
    \n   \u4e3a\u4ec0\u4e48Tomcat7\u7684SSL Connector\u65e0\u6cd5\u914d\u7f6e\u4e3a80\u7aef\u53e3\uff1f\n <\/dd>\n<\/dl>\n
    \n
    \n <\/dt>\n
    \n   \u5982\u4f55\u89e3\u51b3 div \u4e2d\u6362\u884c\u7b26\u663e\u793a\u4e3a\u7a7a\u683c\u7684\u95ee\u9898\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
    \u76ee\u524dGOLANG\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-206160","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=206160"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206160\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}