{"id":206575,"date":"2025-06-12T15:08:56","date_gmt":"2025-06-12T07:08:56","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206575\/"},"modified":"2025-06-12T15:08:56","modified_gmt":"2025-06-12T07:08:56","slug":"go-%e5%8f%98%e9%87%8f%e5%ae%9a%e4%b9%89%e4%b8%ad%e7%9a%84-var-_-handler-handlernil-%e7%a9%b6%e7%ab%9f%e5%9c%a8%e5%81%9a%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206575\/","title":{"rendered":"Go \u53d8\u91cf\u5b9a\u4e49\u4e2d\u7684 `var _ Handler = (*handler)(nil)` \u7a76\u7adf\u5728\u505a\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u53d8\u91cf\u5b9a\u4e49\u4e2d\u7684 `var _ Handler = (*handler)(nil)` \u7a76\u7adf\u5728\u505a\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241115\/1731675826673746b2ae33e.jpg\" class=\"aligncenter\">,<br \/>\n<strong>go\u53d8\u91cf\u5b9a\u4e49\u5199\u6cd5\u7684\u56f0\u60d1<\/strong>,\u5728\u5b66\u4e60go\u8bed\u8a00\u65f6\uff0c\u60a8\u53ef\u80fd\u4f1a\u9047\u5230\u4ee5\u4e0b\u4ee3\u7801\uff1a,\u8fd9\u53ef\u80fd\u4f1a\u5f15\u8d77\u56f0\u60d1\u3002\u8ba9\u6211\u4eec\u5206\u89e3\u8fd9\u4e2a\u8bed\u53e5\uff1a,\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\u7684\u76ee\u7684\u662f\u544a\u8bc9\u7f16\u8bd1\u5668\uff0c\u867d\u7136\u53d8\u91cf_\u6709\u4e00\u4e2a\u7c7b\u578b\u4e3ahandler\u7684\u63a5\u53e3\u7c7b\u578b\uff0c\u4f46\u5b83\u5c06\u59cb\u7ec8\u5305\u542b\u4e00\u4e2anil\u6307\u9488\u3002\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\uff1a,\u56e0\u6b64\uff0c\u8fd9\u6bb5\u4ee3\u7801\u7684\u4f5c\u7528\u662f\u58f0\u660e\u4e00\u4e2a\u7c7b\u578b\u4e3ahandler\u7684\u53d8\u91cf_\uff0c\u8be5\u53d8\u91cf\u5c06\u59cb\u7ec8\u4e3anil\uff0c\u8fd9\u6709\u52a9\u4e8e\u9632\u6b62\u9519\u8bef\u5e76\u4fdd\u6301\u4ee3\u7801\u6574\u6d01\u3002,\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aGo \u53d8\u91cf\u5b9a\u4e49\u4e2d\u7684 `var _ Handler = (*handler)(nil)` \u7a76\u7adf\u5728\u505a\u4ec0\u4e48\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002,<br \/>\n<strong>\u4fdd\u6301\u53d8\u91cf\uff1a<\/strong>\u5b83\u5141\u8bb8\u60a8\u58f0\u660e\u4e00\u4e2a\u5177\u6709\u7279\u5b9a\u7c7b\u578b\u7684\u53d8\u91cf\uff0c\u4f46\u53ea\u9700\u7a0d\u540e\u5206\u914d\u4e00\u4e2a\u503c\u3002,<br \/>\n<strong>\u6d88\u9664\u7a7a\u6307\u9488\u9519\u8bef\uff1a<\/strong>\u7531\u4e8e_\u59cb\u7ec8\u4e3anil\uff0c\u56e0\u6b64\u60a8\u6c38\u8fdc\u4e0d\u4f1a\u610f\u5916\u5730\u8c03\u7528\u7a7a\u6307\u9488\u4e0a\u7684\u65b9\u6cd5\uff0c\u4ece\u800c\u6d88\u9664\u7a7a\u6307\u9488\u9519\u8bef\u3002,<br \/>\n<strong>(*handler)(nil)\uff1a<\/strong>\u8fd9\u901a\u8fc7\u5c06nil\u5f3a\u5236\u8f6c\u6362\u4e3a\u7c7b\u578b*handler\u7684\u6307\u9488\u6765\u521b\u5efanil\u6307\u9488\u3002handler\u662f\u5b9e\u73b0handler\u63a5\u53e3\u7684\u7c7b\u578b\u3002,<br \/>\n<strong>var _ handler =\uff1a<\/strong>\u8fd9\u521b\u5efa\u4e86\u4e00\u4e2a\u7c7b\u578b\u4e3ahandler\u7684\u53d8\u91cf_\uff0c\u5e76\u5c06\u5176<br \/>\n<strong>\u5f3a\u5236<\/strong>\u8bbe\u7f6e\u4e3anil\u3002,go\u53d8\u91cf\u5b9a\u4e49\u5199\u6cd5\u7684\u56f0\u60d1,\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u53d8\u91cf\u5b9a\u4e49\u4e2d\u7684 `var _ Handler = (*handler)(nil)` \u7a76\u7adf\u5728\u505a\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\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 \u53d8\u91cf\u5b9a\u4e49\u4e2d\u7684 `var _ Handler = (*handler)(nil)` \u7a76\u7adf\u5728\u505a\u4ec0\u4e48\uff1f<\/span><\/p>\n<h1>Go \u53d8\u91cf\u5b9a\u4e49\u4e2d\u7684 `var _ Handler = (*handler)(nil)` \u7a76\u7adf\u5728\u505a\u4ec0\u4e48\uff1f<\/h1>\n<p><span>2024-11-15 21:04:02<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u53d8\u91cf\u5b9a\u4e49\u4e2d\u7684 `var _ Handler = (*handler)(nil)` \u7a76\u7adf\u5728\u505a\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241115\/1731675826673746b2ae33e.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>go\u53d8\u91cf\u5b9a\u4e49\u5199\u6cd5\u7684\u56f0\u60d1<\/strong><\/p>\n<p>\u5728\u5b66\u4e60go\u8bed\u8a00\u65f6\uff0c\u60a8\u53ef\u80fd\u4f1a\u9047\u5230\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>var _ Handler = (*handler)(nil)<\/pre>\n<p>\u8fd9\u53ef\u80fd\u4f1a\u5f15\u8d77\u56f0\u60d1\u3002\u8ba9\u6211\u4eec\u5206\u89e3\u8fd9\u4e2a\u8bed\u53e5\uff1a<\/p>\n<ul>\n<li><strong>var _ handler =\uff1a<\/strong>\u8fd9\u521b\u5efa\u4e86\u4e00\u4e2a\u7c7b\u578b\u4e3ahandler\u7684\u53d8\u91cf_\uff0c\u5e76\u5c06\u5176<strong>\u5f3a\u5236<\/strong>\u8bbe\u7f6e\u4e3anil\u3002<\/li>\n<li><strong>(*handler)(nil)\uff1a<\/strong>\u8fd9\u901a\u8fc7\u5c06nil\u5f3a\u5236\u8f6c\u6362\u4e3a\u7c7b\u578b*handler\u7684\u6307\u9488\u6765\u521b\u5efanil\u6307\u9488\u3002handler\u662f\u5b9e\u73b0handler\u63a5\u53e3\u7684\u7c7b\u578b\u3002<\/li>\n<\/ul>\n<p>\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\u7684\u76ee\u7684\u662f\u544a\u8bc9\u7f16\u8bd1\u5668\uff0c\u867d\u7136\u53d8\u91cf_\u6709\u4e00\u4e2a\u7c7b\u578b\u4e3ahandler\u7684\u63a5\u53e3\u7c7b\u578b\uff0c\u4f46\u5b83\u5c06\u59cb\u7ec8\u5305\u542b\u4e00\u4e2anil\u6307\u9488\u3002\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\uff1a<\/p>\n<ul>\n<li><strong>\u6d88\u9664\u7a7a\u6307\u9488\u9519\u8bef\uff1a<\/strong>\u7531\u4e8e_\u59cb\u7ec8\u4e3anil\uff0c\u56e0\u6b64\u60a8\u6c38\u8fdc\u4e0d\u4f1a\u610f\u5916\u5730\u8c03\u7528\u7a7a\u6307\u9488\u4e0a\u7684\u65b9\u6cd5\uff0c\u4ece\u800c\u6d88\u9664\u7a7a\u6307\u9488\u9519\u8bef\u3002<\/li>\n<li><strong>\u4fdd\u6301\u53d8\u91cf\uff1a<\/strong>\u5b83\u5141\u8bb8\u60a8\u58f0\u660e\u4e00\u4e2a\u5177\u6709\u7279\u5b9a\u7c7b\u578b\u7684\u53d8\u91cf\uff0c\u4f46\u53ea\u9700\u7a0d\u540e\u5206\u914d\u4e00\u4e2a\u503c\u3002<\/li>\n<\/ul>\n<p>\u56e0\u6b64\uff0c\u8fd9\u6bb5\u4ee3\u7801\u7684\u4f5c\u7528\u662f\u58f0\u660e\u4e00\u4e2a\u7c7b\u578b\u4e3ahandler\u7684\u53d8\u91cf_\uff0c\u8be5\u53d8\u91cf\u5c06\u59cb\u7ec8\u4e3anil\uff0c\u8fd9\u6709\u52a9\u4e8e\u9632\u6b62\u9519\u8bef\u5e76\u4fdd\u6301\u4ee3\u7801\u6574\u6d01\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aGo \u53d8\u91cf\u5b9a\u4e49\u4e2d\u7684 `var _ Handler = (*handler)(nil)` \u7a76\u7adf\u5728\u505a\u4ec0\u4e48\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u5b9e\u73b0\u6309\u94ae\u4e0e\u5176\u4ed6\u5143\u7d20\u7684\u8054\u5408\u89e6\u53d1\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Lithe Crypt\uff1a\u7b80\u5316 PHP \u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u52a0\u5bc6\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9&#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-206575","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206575","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=206575"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206575\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}