{"id":205982,"date":"2025-06-12T08:45:40","date_gmt":"2025-06-12T00:45:40","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205982\/"},"modified":"2025-06-12T08:45:40","modified_gmt":"2025-06-12T00:45:40","slug":"singleflight-do-%e4%b8%ad-shared-%e5%8f%82%e6%95%b0%e4%b8%ba%e4%bd%95%e6%80%bb%e6%98%af%e8%bf%94%e5%9b%9e-true%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205982\/","title":{"rendered":"## singleflight.Do \u4e2d shared \u53c2\u6570\u4e3a\u4f55\u603b\u662f\u8fd4\u56de true\uff1f"},"content":{"rendered":"<p>\u54c8\u55bd\uff01\u5927\u5bb6\u597d\uff0c\u5f88\u9ad8\u5174\u53c8\u89c1\u9762\u4e86\uff0c\u6211\u662fGOLANG\u7684\u4e00\u540d\u4f5c\u8005\uff0c\u4eca\u5929\u7531\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a## singleflight.Do \u4e2d shared \u53c2\u6570\u4e3a\u4f55\u603b\u662f\u8fd4\u56de true\uff1f\u300b<\/span>\uff0c\u672c\u6587\u4e3b\u8981\u4f1a\u8bb2\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5927\u5bb6\u4e00\u8d77\u5b66\u4e60\u8fdb\u6b65\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u3001\u70b9\u8d5e\u3001\u6536\u85cf\u3001\u8f6c\u53d1! \u4e0b\u9762\u5c31\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241030\/17302811816721fedd54568.jpg\" class=\"aligncenter\">,<br \/>\n<strong>singleflight.Do\u8fd4\u56deshared\u53c2\u6570\u7684\u95ee\u9898<\/strong>,\u4f7f\u7528singleflight.Do\u7b2c\u4e09\u4e2a\u53c2\u6570\u65f6\u9047\u5230\u4e86\u7591\u60d1\uff0c\u4e3a\u4ec0\u4e48\u8fd4\u56de\u503cshared\u603b\u662ftrue\uff1f,<br \/>\n<strong>\u80cc\u666f<\/strong>,singleflight.Do\u51fd\u6570\u6709\u4e09\u4e2a\u53c2\u6570\uff1a,<br \/>\n<strong>\u95ee\u9898<\/strong>,\u6309\u7167\u60ef\u4f8b\uff0c\u81f3\u5c11\u6709\u4e00\u4e2a\u8c03\u7528\u8005\u7684shared\u53c2\u6570\u5e94\u8be5\u8fd4\u56defalse\uff0c\u56e0\u4e3a\u8fd9\u662f\u534f\u7a0b\u72ec\u7acb\u6267\u884c\u67e5\u8be2\u7684\u7ed3\u679c\u3002\u7136\u800c\uff0c\u5728\u63d0\u4f9b\u7684\u4ee3\u7801\u4e2d\uff0cshared\u59cb\u7ec8\u8fd4\u56detrue\u3002,<br \/>\n<strong>\u89e3\u51b3<\/strong>,\u95ee\u9898\u5728\u4e8e\u5bf9shared\u53c2\u6570\u7684\u7406\u89e3\u3002shared\u8868\u793a\u7684\u662f\u8fd4\u56de\u7684val\u662f\u5426\u88ab\u591a\u4e2a\u8c03\u7528\u8005\u5171\u4eab\uff0c\u800c\u4e0d\u662f\u67e5\u8be2\u672c\u8eab\u662f\u5426\u88ab\u5171\u4eab\u3002\u5728\u7ed9\u5b9a\u7684\u4ee3\u7801\u4e2d\uff0c\u67e5\u8be2\u662f\u7531do\u51fd\u6570\u6267\u884c\u7684\uff0c\u800cval\u662f\u67e5\u8be2\u7684\u7ed3\u679c\u3002,\u56e0\u6b64\uff0c\u53ea\u6709\u5f53val\u88ab\u591a\u4e2a\u8c03\u7528\u8005\u5171\u4eab\u65f6\uff0cshared\u624d\u4f1a\u8fd4\u56detrue\u3002\u5728\u672c\u4f8b\u4e2d\uff0cval\u662f\u5728do\u51fd\u6570\u4e2d\u751f\u6210\u7684\u4e00\u4e2a\u6574\u6570\u3002\u7531\u4e8edo\u51fd\u6570\u662f\u5728\u6bcf\u4e2a\u8c03\u7528\u8005\u7684\u534f\u7a0b\u4e2d\u72ec\u7acb\u6267\u884c\u7684\uff0c\u56e0\u6b64val\u53ea\u6709\u5f53\u591a\u4e2a\u8c03\u7528\u8005\u540c\u65f6\u6267\u884cdo\u51fd\u6570\u65f6\u624d\u4f1a\u88ab\u5171\u4eab\u3002,<br \/>\n<strong>\u7ed3\u8bba<\/strong>,\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u7531\u4e8e\u8c03\u7528\u8005\u4e4b\u95f4\u6ca1\u6709\u5e76\u53d1\u6267\u884cdo\u51fd\u6570\uff0c\u56e0\u6b64shared\u59cb\u7ec8\u8fd4\u56detrue\u3002\u5982\u679c\u8981\u83b7\u5f97false\uff0c\u9700\u8981\u786e\u4fdd\u591a\u4e2a\u8c03\u7528\u8005\u540c\u65f6\u6267\u884cdo\u51fd\u6570\u3002,\u4eca\u5929\u5173\u4e8e\u300a## singleflight.Do \u4e2d shared \u53c2\u6570\u4e3a\u4f55\u603b\u662f\u8fd4\u56de true\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728GOLANG\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01,do\uff1a\u8981\u6267\u884c\u7684\u51fd\u6570\uff08\u5728\u672c\u4f8b\u4e2d\u4e3a\u67e5\u8be2Mysql\uff09,key\uff1a\u7528\u4e8e\u6807\u8bc6\u6570\u636e\u5e93\u67e5\u8be2,shared\uff1a\u5e03\u5c14\u503c\uff0c\u8868\u793a\u67e5\u8be2\u7ed3\u679c\u662f\u5426\u5728\u591a\u4e2a\u8c03\u7528\u8005\u4e4b\u95f4\u5171\u4eab,singleflight.Do\u8fd4\u56deshared\u53c2\u6570\u7684\u95ee\u9898,\u54c8\u55bd\uff01\u5927\u5bb6\u597d\uff0c\u5f88\u9ad8\u5174\u53c8\u89c1\u9762\u4e86\uff0c\u6211\u662fGOLANG\u7684\u4e00\u540d\u4f5c\u8005\uff0c\u4eca\u5929\u7531\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a## singleflight.Do \u4e2d shared \u53c2\u6570\u4e3a\u4f55\u603b\u662f\u8fd4\u56de true\uff1f\u300b<\/span>\uff0c\u672c\u6587\u4e3b\u8981\u4f1a\u8bb2\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5927\u5bb6\u4e00\u8d77\u5b66\u4e60\u8fdb\u6b65\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u3001\u70b9\u8d5e\u3001\u6536\u85cf\u3001\u8f6c\u53d1! \u4e0b\u9762\u5c31\u4e00\u8d77\u6765\u770b\u770b\u5427\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>## singleflight.Do \u4e2d shared \u53c2\u6570\u4e3a\u4f55\u603b\u662f\u8fd4\u56de true\uff1f<\/span><\/p>\n<h1>## singleflight.Do \u4e2d shared \u53c2\u6570\u4e3a\u4f55\u603b\u662f\u8fd4\u56de true\uff1f<\/h1>\n<p><span>2024-10-30 17:39:56<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u54c8\u55bd\uff01\u5927\u5bb6\u597d\uff0c\u5f88\u9ad8\u5174\u53c8\u89c1\u9762\u4e86\uff0c\u6211\u662fGOLANG\u7684\u4e00\u540d\u4f5c\u8005\uff0c\u4eca\u5929\u7531\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a## singleflight.Do \u4e2d shared \u53c2\u6570\u4e3a\u4f55\u603b\u662f\u8fd4\u56de true\uff1f\u300b<\/span>\uff0c\u672c\u6587\u4e3b\u8981\u4f1a\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5927\u5bb6\u4e00\u8d77\u5b66\u4e60\u8fdb\u6b65\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u3001\u70b9\u8d5e\u3001\u6536\u85cf\u3001\u8f6c\u53d1! \u4e0b\u9762\u5c31\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241030\/17302811816721fedd54568.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>singleflight.Do\u8fd4\u56deshared\u53c2\u6570\u7684\u95ee\u9898<\/strong><\/p>\n<p>\u4f7f\u7528singleflight.Do\u7b2c\u4e09\u4e2a\u53c2\u6570\u65f6\u9047\u5230\u4e86\u7591\u60d1\uff0c\u4e3a\u4ec0\u4e48\u8fd4\u56de\u503cshared\u603b\u662ftrue\uff1f<\/p>\n<p><strong>\u80cc\u666f<\/strong><\/p>\n<p>singleflight.Do\u51fd\u6570\u6709\u4e09\u4e2a\u53c2\u6570\uff1a<\/p>\n<ul>\n<li>key\uff1a\u7528\u4e8e\u6807\u8bc6\u6570\u636e\u5e93\u67e5\u8be2<\/li>\n<li>do\uff1a\u8981\u6267\u884c\u7684\u51fd\u6570\uff08\u5728\u672c\u4f8b\u4e2d\u4e3a\u67e5\u8be2Mysql\uff09<\/li>\n<li>shared\uff1a\u5e03\u5c14\u503c\uff0c\u8868\u793a\u67e5\u8be2\u7ed3\u679c\u662f\u5426\u5728\u591a\u4e2a\u8c03\u7528\u8005\u4e4b\u95f4\u5171\u4eab<\/li>\n<\/ul>\n<p><strong>\u95ee\u9898<\/strong><\/p>\n<p>\u6309\u7167\u60ef\u4f8b\uff0c\u81f3\u5c11\u6709\u4e00\u4e2a\u8c03\u7528\u8005\u7684shared\u53c2\u6570\u5e94\u8be5\u8fd4\u56defalse\uff0c\u56e0\u4e3a\u8fd9\u662f\u534f\u7a0b\u72ec\u7acb\u6267\u884c\u67e5\u8be2\u7684\u7ed3\u679c\u3002\u7136\u800c\uff0c\u5728\u63d0\u4f9b\u7684\u4ee3\u7801\u4e2d\uff0cshared\u59cb\u7ec8\u8fd4\u56detrue\u3002<\/p>\n<p><strong>\u89e3\u51b3<\/strong><\/p>\n<p>\u95ee\u9898\u5728\u4e8e\u5bf9shared\u53c2\u6570\u7684\u7406\u89e3\u3002shared\u8868\u793a\u7684\u662f\u8fd4\u56de\u7684val\u662f\u5426\u88ab\u591a\u4e2a\u8c03\u7528\u8005\u5171\u4eab\uff0c\u800c\u4e0d\u662f\u67e5\u8be2\u672c\u8eab\u662f\u5426\u88ab\u5171\u4eab\u3002\u5728\u7ed9\u5b9a\u7684\u4ee3\u7801\u4e2d\uff0c\u67e5\u8be2\u662f\u7531do\u51fd\u6570\u6267\u884c\u7684\uff0c\u800cval\u662f\u67e5\u8be2\u7684\u7ed3\u679c\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u53ea\u6709\u5f53val\u88ab\u591a\u4e2a\u8c03\u7528\u8005\u5171\u4eab\u65f6\uff0cshared\u624d\u4f1a\u8fd4\u56detrue\u3002\u5728\u672c\u4f8b\u4e2d\uff0cval\u662f\u5728do\u51fd\u6570\u4e2d\u751f\u6210\u7684\u4e00\u4e2a\u6574\u6570\u3002\u7531\u4e8edo\u51fd\u6570\u662f\u5728\u6bcf\u4e2a\u8c03\u7528\u8005\u7684\u534f\u7a0b\u4e2d\u72ec\u7acb\u6267\u884c\u7684\uff0c\u56e0\u6b64val\u53ea\u6709\u5f53\u591a\u4e2a\u8c03\u7528\u8005\u540c\u65f6\u6267\u884cdo\u51fd\u6570\u65f6\u624d\u4f1a\u88ab\u5171\u4eab\u3002<\/p>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u7531\u4e8e\u8c03\u7528\u8005\u4e4b\u95f4\u6ca1\u6709\u5e76\u53d1\u6267\u884cdo\u51fd\u6570\uff0c\u56e0\u6b64shared\u59cb\u7ec8\u8fd4\u56detrue\u3002\u5982\u679c\u8981\u83b7\u5f97false\uff0c\u9700\u8981\u786e\u4fdd\u591a\u4e2a\u8c03\u7528\u8005\u540c\u65f6\u6267\u884cdo\u51fd\u6570\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300a## singleflight.Do \u4e2d shared \u53c2\u6570\u4e3a\u4f55\u603b\u662f\u8fd4\u56de true\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728GOLANG\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u4f7f\u7528\u5a92\u4f53\u67e5\u8be2\u5b9e\u73b0\u7cbe\u786e\u7684\u6837\u5f0f\u63a7\u5236\uff0c\u5305\u62ec\u5927\u4e8e\u3001\u7b49\u4e8e\u3001\u5c0f\u4e8e\u4e09\u79cd\u6761\u4ef6\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Vue \u4e2d Deep \u6837\u5f0f\u4e3a\u4f55\u4e0d\u751f\u6548\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u54c8\u55bd\uff01\u5927\u5bb6\u597d\uff0c\u5f88\u9ad8\u5174\u53c8\u89c1\u9762\u4e86\uff0c\u6211&#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-205982","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205982","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=205982"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205982\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205982"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205982"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205982"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}