{"id":207595,"date":"2025-07-08T10:57:56","date_gmt":"2025-07-08T02:57:56","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207595\/"},"modified":"2025-07-08T10:57:56","modified_gmt":"2025-07-08T02:57:56","slug":"%e8%8e%b7%e5%8f%96%e6%95%b0%e6%8d%ae%e5%ba%93%e8%bf%9e%e6%8e%a5%e7%9a%84%e8%bf%9e%e6%8e%a5%e5%ad%97%e7%ac%a6%e4%b8%b2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207595\/","title":{"rendered":"\u83b7\u53d6\u6570\u636e\u5e93\u8fde\u63a5\u7684\u8fde\u63a5\u5b57\u7b26\u4e32"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u83b7\u53d6\u6570\u636e\u5e93\u8fde\u63a5\u7684\u8fde\u63a5\u5b57\u7b26\u4e32<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-23 20:48:33<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u600e\u4e48\u5165\u95e8Golang\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300a\u83b7\u53d6\u6570\u636e\u5e93\u8fde\u63a5\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u6211\u6b63\u5728\u5c1d\u8bd5\u6d4b\u8bd5\u8fd9\u4e2a\u529f\u80fd\uff1a<\/p>\n

\/\/OpenConnection opens a connection to a MySQL database by `connStr`\n\/\/ or returns error. If `connStr` is empty, error is returned.\n\/\/\n\/\/ Parameters:\n\/\/ - `connStr`: the URL of the database to connect to\n\/\/ - `interpolateParams` : should we interpolate parameters?\n\/\/\n\/\/ Returns:\n\/\/ - pointer to the database connection\n\/\/ - any errors that happened during this process\nfunc OpenConnection(connStr string, interpolateParams bool) (*sql.DB, *errors.ErrorSt) {\n    if connStr == \"\" {\n        return nil, errors.Database().ReplaceMessage(\"No database connection string.\")\n    }\n    connStr = connStr + \"?parseTime=true&multiStatements=true\"\n    if interpolateParams {\n        connStr += \"&interpolateParams=true\"\n    }\n\n    db, err := sql.Open(\"mysql\", connStr)\n    if err != nil {\n        return nil, errors.Database().AddDetails(err.Error(), connStr)\n    }\n    return db, nil\n}<\/pre>\n
\u5bf9\u4e8e interpolateparams<\/code> \u7684\u60c5\u51b5\u3002\u6211\u6b63\u5728\u7b5b\u9009\u5b98\u65b9\u6587\u6863\uff0c\u4f46\u6ca1\u6709\u770b\u5230\u4ece sql.db<\/code> \u83b7\u53d6\u8fde\u63a5\u5b57\u7b26\u4e32\u7684\u7b80\u5355\u65b9\u6cd5\u3002\u7531\u4e8e\u8fd9\u662f\u5355\u5143\u6d4b\u8bd5\uff0c\u6211\u5f53\u7136\u4f1a\u4f7f\u7528\u865a\u5047\u7684\u8fde\u63a5 url \u6765\u8bbf\u95ee\u8be5\u51fd\u6570\u3002 <\/p>\n
\u6709\u6ca1\u6709\u529e\u6cd5\u4ece sql.db<\/code> \u83b7\u53d6\u8fde\u63a5 url \u6765\u68c0\u67e5\u63d2\u503c\u67e5\u8be2\u5b57\u7b26\u4e32\uff1f<\/strong><\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
database\/sql<\/code> \u4e3b\u8981\u81f4\u529b\u4e8e\u6210\u4e3a\u4f7f\u7528 SQL \u8fdb\u884c\u64cd\u4f5c\u7684\u63a5\u53e3\u3002\u8fde\u63a5\u5b57\u7b26\u4e32\u901a\u5e38\u662f\u7279\u5b9a\u4e8e\u9a71\u52a8\u7a0b\u5e8f\u7684\uff0c\u6240\u4ee5\u6211\u4f1a\u5411\u60a8\u4f7f\u7528\u7684\u9a71\u52a8\u7a0b\u5e8f\u5bfb\u627e\u5982\u4f55\u83b7\u53d6\u8fde\u63a5\u5b57\u7b26\u4e32\u7684\u7ebf\u7d22\u5728\u60a8\u7684\u60c5\u51b5\u4e0b\uff0c\u6839\u636e\u9876\u90e8\u7684\u6ce8\u91ca\u5224\u65ad\uff0c\u60a8\u6b63\u5728\u4f7f\u7528MySQL\uff0c\u6240\u4ee5\u6211\u5047\u8bbe\u60a8\u4f1a\u4f7f\u7528 go-sql-driver\/mysql<\/code>\u3002\u60a8\u53ef\u4ee5\u76f4\u63a5\u5728\u4ee3\u7801\u4e2d\u5bfc\u5165\u5b83\uff08\u800c\u4e0d\u662f\u4f7f\u7528\u7a7a\u767d\u5bfc\u5165\uff09\u5e76\u8bbf\u95ee Config<\/code> \u7ed3\u6784\uff0c\u8bb0\u5f55\u5982\u4e0b\uff1a\uff0c\u5b83\u4ece\u4f20\u9012\u5230 sql.Open<\/code> \u7684 dsn \u4e2d\u586b\u5145<\/p>\n
\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8eGolang\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/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-207595","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207595","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=207595"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207595\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}