{"id":206320,"date":"2025-06-12T11:27:29","date_gmt":"2025-06-12T03:27:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206320\/"},"modified":"2025-06-12T11:27:29","modified_gmt":"2025-06-12T03:27:29","slug":"go%e8%af%ad%e8%a8%80%e4%b8%ad%ef%bc%8c%e4%b8%ba%e4%bb%80%e4%b9%88%e5%87%bd%e6%95%b0%e5%8f%82%e6%95%b0%e7%9a%84%e6%8c%87%e9%92%88%e5%80%bc%e6%97%a0%e6%b3%95%e8%a2%ab%e6%88%90%e5%8a%9f%e4%bf%ae%e6%94%b9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206320\/","title":{"rendered":"Go\u8bed\u8a00\u4e2d\uff0c\u4e3a\u4ec0\u4e48\u51fd\u6570\u53c2\u6570\u7684\u6307\u9488\u503c\u65e0\u6cd5\u88ab\u6210\u529f\u4fee\u6539\uff1f"},"content":{"rendered":"<p>\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo\u8bed\u8a00\u4e2d\uff0c\u4e3a\u4ec0\u4e48\u51fd\u6570\u53c2\u6570\u7684\u6307\u9488\u503c\u65e0\u6cd5\u88ab\u6210\u529f\u4fee\u6539\uff1f\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241109\/1731139425672f17616a0a5.jpg\" class=\"aligncenter\">,<br \/>\n<strong>\u6307\u9488\u503c\u672a\u6210\u529f\u4fee\u6539\u7684\u539f\u56e0<\/strong>,\u5728 go \u8bed\u8a00\u4e2d\uff0c\u53d8\u91cf\u7684\u5c40\u90e8\u4f5c\u7528\u57df\u4f1a\u8986\u76d6\u51fd\u6570\u7684\u53c2\u6570\u53d8\u91cf\u540d\u3002\u5728\u63d0\u4f9b\u7684\u4ee3\u7801\u4e2d\uff0c\u95ee\u9898\u51fa\u5728 initdb \u51fd\u6570\u4e2d\u3002,<br \/>\n<strong>initdb \u51fd\u6570\u5206\u6790<\/strong>,initdb \u51fd\u6570\u63a5\u6536\u4e00\u4e2a *sql.db \u7c7b\u578b\u6307\u9488\u4f5c\u4e3a\u53c2\u6570\u3002\u8be5\u51fd\u6570\u5185\u58f0\u660e\u4e86\u4e00\u4e2a\u5c40\u90e8\u53d8\u91cf db\uff0c\u5e76\u5c1d\u8bd5\u4f7f\u7528 sql.open \u51fd\u6570\u4e3a\u5176\u5206\u914d\u4e00\u4e2a\u975e nil \u503c\u3002\u4f46\u662f\uff0c\u8fd9\u4e2a\u5c40\u90e8\u53d8\u91cf\u5e76\u4e0d\u662f\u5bf9\u53c2\u6570 db \u7684\u4fee\u6539\u3002\u7531\u4e8e\u5c40\u90e8\u53d8\u91cf db \u8986\u76d6\u4e86\u53c2\u6570 db\uff0c\u56e0\u6b64\u51fd\u6570\u5916\u90e8\u65e0\u6cd5\u8bbf\u95ee\u51fd\u6570\u5185\u5206\u914d\u7ed9\u5c40\u90e8\u53d8\u91cf\u7684\u503c\u3002,<br \/>\n<strong>main \u51fd\u6570\u8f93\u51fa nil \u7684\u539f\u56e0<\/strong>,\u5728 main \u51fd\u6570\u4e2d\uff0cfmt.println(db) \u6253\u5370\u7684\u662f nil \u503c\uff0c\u8fd9\u662f\u56e0\u4e3a main \u51fd\u6570\u4e2d db \u53c2\u6570\u53d8\u91cf\u6ca1\u6709\u88ab\u6210\u529f\u4fee\u6539\u3002initdb \u51fd\u6570\u5185\u90e8\u4e3a\u5c40\u90e8\u53d8\u91cf db \u5206\u914d\u4e86\u975e nil \u503c\uff0c\u4f46\u8fd9\u4e2a\u503c\u4e0d\u4f1a\u5f71\u54cd\u4f20\u9012\u7ed9 main \u51fd\u6570\u7684\u53c2\u6570\u53d8\u91cf db\u3002,<br \/>\n<strong>\u7ed3\u8bba<\/strong>,\u8981\u6210\u529f\u4fee\u6539\u6307\u9488\u503c\uff0c\u9700\u8981\u76f4\u63a5\u5bf9\u51fd\u6570\u53c2\u6570\u8fdb\u884c\u4fee\u6539\uff0c\u800c\u4e0d\u662f\u521b\u5efa\u65b0\u7684\u5c40\u90e8\u53d8\u91cf\uff0c\u5e76\u5bf9\u5176\u8fdb\u884c\u4fee\u6539\u3002\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u6765\u89e3\u51b3\u95ee\u9898\uff1a,\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aGo\u8bed\u8a00\u4e2d\uff0c\u4e3a\u4ec0\u4e48\u51fd\u6570\u53c2\u6570\u7684\u6307\u9488\u503c\u65e0\u6cd5\u88ab\u6210\u529f\u4fee\u6539\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u5427\uff01,\u6307\u9488\u503c\u672a\u6210\u529f\u4fee\u6539\u7684\u539f\u56e0,\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo\u8bed\u8a00\u4e2d\uff0c\u4e3a\u4ec0\u4e48\u51fd\u6570\u53c2\u6570\u7684\u6307\u9488\u503c\u65e0\u6cd5\u88ab\u6210\u529f\u4fee\u6539\uff1f\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>Go\u8bed\u8a00\u4e2d\uff0c\u4e3a\u4ec0\u4e48\u51fd\u6570\u53c2\u6570\u7684\u6307\u9488\u503c\u65e0\u6cd5\u88ab\u6210\u529f\u4fee\u6539\uff1f<\/span><\/p>\n<h1>Go\u8bed\u8a00\u4e2d\uff0c\u4e3a\u4ec0\u4e48\u51fd\u6570\u53c2\u6570\u7684\u6307\u9488\u503c\u65e0\u6cd5\u88ab\u6210\u529f\u4fee\u6539\uff1f<\/h1>\n<p><span>2024-11-09 16:04:00<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo\u8bed\u8a00\u4e2d\uff0c\u4e3a\u4ec0\u4e48\u51fd\u6570\u53c2\u6570\u7684\u6307\u9488\u503c\u65e0\u6cd5\u88ab\u6210\u529f\u4fee\u6539\uff1f\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241109\/1731139425672f17616a0a5.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u6307\u9488\u503c\u672a\u6210\u529f\u4fee\u6539\u7684\u539f\u56e0<\/strong><\/p>\n<p>\u5728 go \u8bed\u8a00\u4e2d\uff0c\u53d8\u91cf\u7684\u5c40\u90e8\u4f5c\u7528\u57df\u4f1a\u8986\u76d6\u51fd\u6570\u7684\u53c2\u6570\u53d8\u91cf\u540d\u3002\u5728\u63d0\u4f9b\u7684\u4ee3\u7801\u4e2d\uff0c\u95ee\u9898\u51fa\u5728 initdb \u51fd\u6570\u4e2d\u3002<\/p>\n<p><strong>initdb \u51fd\u6570\u5206\u6790<\/strong><\/p>\n<p>initdb \u51fd\u6570\u63a5\u6536\u4e00\u4e2a *sql.db \u7c7b\u578b\u6307\u9488\u4f5c\u4e3a\u53c2\u6570\u3002\u8be5\u51fd\u6570\u5185\u58f0\u660e\u4e86\u4e00\u4e2a\u5c40\u90e8\u53d8\u91cf db\uff0c\u5e76\u5c1d\u8bd5\u4f7f\u7528 sql.open \u51fd\u6570\u4e3a\u5176\u5206\u914d\u4e00\u4e2a\u975e nil \u503c\u3002\u4f46\u662f\uff0c\u8fd9\u4e2a\u5c40\u90e8\u53d8\u91cf\u5e76\u4e0d\u662f\u5bf9\u53c2\u6570 db \u7684\u4fee\u6539\u3002\u7531\u4e8e\u5c40\u90e8\u53d8\u91cf db \u8986\u76d6\u4e86\u53c2\u6570 db\uff0c\u56e0\u6b64\u51fd\u6570\u5916\u90e8\u65e0\u6cd5\u8bbf\u95ee\u51fd\u6570\u5185\u5206\u914d\u7ed9\u5c40\u90e8\u53d8\u91cf\u7684\u503c\u3002<\/p>\n<p><strong>main \u51fd\u6570\u8f93\u51fa nil \u7684\u539f\u56e0<\/strong><\/p>\n<p>\u5728 main \u51fd\u6570\u4e2d\uff0cfmt.println(db) \u6253\u5370\u7684\u662f nil \u503c\uff0c\u8fd9\u662f\u56e0\u4e3a main \u51fd\u6570\u4e2d db \u53c2\u6570\u53d8\u91cf\u6ca1\u6709\u88ab\u6210\u529f\u4fee\u6539\u3002initdb \u51fd\u6570\u5185\u90e8\u4e3a\u5c40\u90e8\u53d8\u91cf db \u5206\u914d\u4e86\u975e nil \u503c\uff0c\u4f46\u8fd9\u4e2a\u503c\u4e0d\u4f1a\u5f71\u54cd\u4f20\u9012\u7ed9 main \u51fd\u6570\u7684\u53c2\u6570\u53d8\u91cf db\u3002<\/p>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>\u8981\u6210\u529f\u4fee\u6539\u6307\u9488\u503c\uff0c\u9700\u8981\u76f4\u63a5\u5bf9\u51fd\u6570\u53c2\u6570\u8fdb\u884c\u4fee\u6539\uff0c\u800c\u4e0d\u662f\u521b\u5efa\u65b0\u7684\u5c40\u90e8\u53d8\u91cf\uff0c\u5e76\u5bf9\u5176\u8fdb\u884c\u4fee\u6539\u3002\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u6765\u89e3\u51b3\u95ee\u9898\uff1a<\/p>\n<pre>func initDB(db **sql.DB) {\n    if *db == nil {\n        *db, err = sql.Open(...<\/pre>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aGo\u8bed\u8a00\u4e2d\uff0c\u4e3a\u4ec0\u4e48\u51fd\u6570\u53c2\u6570\u7684\u6307\u9488\u503c\u65e0\u6cd5\u88ab\u6210\u529f\u4fee\u6539\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u5427\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   ElementUI \u7236\u7ec4\u4ef6\u5982\u4f55\u8c03\u7528\u5b50\u7ec4\u4ef6 ref \u65b9\u6cd5\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u63ed\u5f00\u534e\u7855\u7535\u8111\u4ef7\u683c\u771f\u76f8\uff1a\u6027\u4ef7\u6bd4\u5206\u6790\u4e0e\u4ea7\u54c1\u63a8\u8350\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca&#46;&#46;&#46;<\/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-206320","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206320","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=206320"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206320\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206320"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206320"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}