{"id":206129,"date":"2025-06-12T09:36:16","date_gmt":"2025-06-12T01:36:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206129\/"},"modified":"2025-06-12T09:36:16","modified_gmt":"2025-06-12T01:36:16","slug":"go-%e4%b8%ad%e4%bd%bf%e7%94%a8-mysql-%e5%92%8c-gin-%e6%97%b6%ef%bc%8c%e9%81%87%e5%88%b0panic-recoveredruntime-error-invalid-memory-address-or-nil-pointer-dereference%e9%94%99","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206129\/","title":{"rendered":"Go \u4e2d\u4f7f\u7528 MySQL \u548c Gin \u65f6\uff0c\u9047\u5230\u201cpanic recovered:runtime error: invalid memory address or nil pointer dereference\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f"},"content":{"rendered":"<p>GOLANG\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300aGo \u4e2d\u4f7f\u7528 MySQL \u548c Gin \u65f6\uff0c\u9047\u5230\u201cpanic recovered:runtime error: invalid memory address or nil pointer dereference\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01,<br \/>\n<br \/>,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241104\/17307011166728673c01e43.jpg\" class=\"aligncenter\">,<br \/>\n<strong>go \u4e2d mysql \u548c gin \u64cd\u4f5c\u62a5\u9519<\/strong>,<br \/>\n<strong>\u95ee\u9898\uff1a<\/strong>,\u4f7f\u7528 golang \u7684 mysql \u9a71\u52a8\u548c gin \u6846\u67b6\u65f6\u9047\u5230\u5982\u4e0b\u9519\u8bef\uff1a,<br \/>\n<strong>\u539f\u56e0\uff1a<\/strong>,\u8be5\u9519\u8bef\u8868\u660e\u5c1d\u8bd5\u5728\u5173\u95ed\u7684\u8bed\u53e5\u4e0a\u6267\u884c\u64cd\u4f5c\u3002\u5f88\u53ef\u80fd\u662f\u56e0\u4e3a\u4f7f\u7528\u4e86 mysql \u9a71\u52a8\u7684 stmt.exec() \u800c\u6ca1\u6709\u4f7f\u7528 stmt.execcontext()\u3002,<br \/>\n<strong>\u89e3\u51b3\u65b9\u6cd5\uff1a<\/strong>,\u786e\u4fdd\u59cb\u7ec8\u4f7f\u7528 stmt.execcontext()\uff0c\u5373\u4f7f\u672a\u4f7f\u7528\u4e0a\u4e0b\u6587\u53c2\u6570\u3002\u4f8b\u5982\uff1a,\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aGo \u4e2d\u4f7f\u7528 MySQL \u548c Gin \u65f6\uff0c\u9047\u5230\u201cpanic recovered:runtime error: invalid memory address or nil pointer dereference\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\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,GOLANG\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300aGo \u4e2d\u4f7f\u7528 MySQL \u548c Gin \u65f6\uff0c\u9047\u5230\u201cpanic recovered:runtime error: invalid memory address or nil pointer dereference\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\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 \u4e2d\u4f7f\u7528 MySQL \u548c Gin \u65f6\uff0c\u9047\u5230\u201cpanic recovered:runtime error: invalid memory address or nil pointer dereference\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f<\/span><\/p>\n<h1>Go \u4e2d\u4f7f\u7528 MySQL \u548c Gin \u65f6\uff0c\u9047\u5230\u201cpanic recovered:runtime error: invalid memory address or nil pointer dereference\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f<\/h1>\n<p><span>2024-11-04 14:18:51<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>GOLANG\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300aGo \u4e2d\u4f7f\u7528 MySQL \u548c Gin \u65f6\uff0c\u9047\u5230\u201cpanic recovered:runtime error: invalid memory address or nil pointer dereference\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241104\/17307011166728673c01e43.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>go \u4e2d mysql \u548c gin \u64cd\u4f5c\u62a5\u9519<\/strong><\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u4f7f\u7528 golang \u7684 mysql \u9a71\u52a8\u548c gin \u6846\u67b6\u65f6\u9047\u5230\u5982\u4e0b\u9519\u8bef\uff1a<\/p>\n<pre>panic recovered:\nruntime error: invalid memory address or nil pointer dereference\n\/snap\/go\/8489\/src\/database\/sql\/sql.go:2578 (0x4f30c2)\n        (*stmt).execcontext: s.closemu.rlock()<\/pre>\n<p><strong>\u539f\u56e0\uff1a<\/strong><\/p>\n<p>\u8be5\u9519\u8bef\u8868\u660e\u5c1d\u8bd5\u5728\u5173\u95ed\u7684\u8bed\u53e5\u4e0a\u6267\u884c\u64cd\u4f5c\u3002\u5f88\u53ef\u80fd\u662f\u56e0\u4e3a\u4f7f\u7528\u4e86 mysql \u9a71\u52a8\u7684 stmt.exec() \u800c\u6ca1\u6709\u4f7f\u7528 stmt.execcontext()\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p>\u786e\u4fdd\u59cb\u7ec8\u4f7f\u7528 stmt.execcontext()\uff0c\u5373\u4f7f\u672a\u4f7f\u7528\u4e0a\u4e0b\u6587\u53c2\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>_, err := stmt.ExecContext(context.TODO(), req.IdCode, c.Request.RemoteAddr)<\/pre>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aGo \u4e2d\u4f7f\u7528 MySQL \u548c Gin \u65f6\uff0c\u9047\u5230\u201cpanic recovered:runtime error: invalid memory address or nil pointer dereference\u201d\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\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   Chrome PC \u7aef\u4e2d initial-scale \u4e3a\u4f55\u4e0d\u751f\u6548\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u5728 JavaScript \u51fd\u6570\u4e2d\u83b7\u53d6\u548c\u4fee\u6539\u79c1\u6709\u53d8\u91cf\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>GOLANG\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66&#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-206129","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206129","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=206129"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206129\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}