{"id":207434,"date":"2025-07-08T12:06:37","date_gmt":"2025-07-08T04:06:37","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207434\/"},"modified":"2025-07-08T12:06:37","modified_gmt":"2025-07-08T04:06:37","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-golang-%e4%bd%bf%e7%94%a8-url-query-get-%e5%a1%ab%e5%85%85-select-%e8%af%ad%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207434\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 Golang \u4f7f\u7528 URL.Query().Get() \u586b\u5145 SELECT \u8bed\u53e5"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u4f55\u4f7f\u7528 Golang \u4f7f\u7528 URL.Query().Get() \u586b\u5145 SELECT \u8bed\u53e5<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-22 16:18:38<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300a\u5982\u4f55\u4f7f\u7528 Golang \u4f7f\u7528 URL.Query().Get() \u586b\u5145 SELECT \u8bed\u53e5\u300b<\/span>\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n

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

func startHandler(w http.ResponseWriter, r *http.Request) {\n    conn_str := dbuser + \":\" + dbpass + \"@tcp(\" + dbhost + \":\" + dbport + \")\/\" + dbdb\n    log.Println(conn_str)\n\n    db, err := sql.Open(\"mysql\", conn_str)\n    if err != nil {\n        log.Println(\"DB Error - Unable to connect:\", err)\n    }\n    defer db.Close()\n\n    table := r.URL.Query().Get(\"table\")\n\n    \n        rows, _ := db.Query(\"SELECT * FROM \"+ table) \/\/selects all columns from table\n        cols, _ := rows.Columns()\n\n        fmt.Fprintf(w, \"%s\\n\", cols)<\/pre>\n
\u5f53\u6211\u5c1d\u8bd5\u6b64\u64cd\u4f5c\u65f6\uff0c\u5b83\u6ca1\u6709\u586b\u5199\u6211\u4ece\u7f51\u7ad9\u8f93\u5165\u7684\u503c\u3002\u5982\u679c\u6211 log.println(table) \u5b83\u786e\u5b9e\u663e\u793a\u5728\u6211\u7684\u7ec8\u7aef\u4e2d\u3002\u4f46\u5b83\u4e0d\u4f1a\u663e\u793a\u5728\u7f51\u7ad9\u4e0a\u6216\u7528\u8868\u586b\u5145 select \u8bed\u53e5…<\/p>\n
 <\/p>\n
\u6b63\u786e\u7b54\u6848<\/h2>\n
 <\/p>\n
\u5047\u8bbe\u60a8\u4ece api \u8c03\u7528\u6b64\u51fd\u6570\uff0c\u6211\u4f1a\u6dfb\u52a0\u4e00\u4e9b\u5185\u5bb9\uff0c\u66f4\u4e0d\u7528\u8bf4\u907f\u514d\u4f7f\u7528\u901a\u914d\u7b26 (*) \u9009\u62e9\u3002<\/p>\n
\u7f16\u8f91\uff1a\u6211\u60f3\u6211\u53ef\u80fd\u8bef\u89e3\u4e86\u4f60\u7684\u95ee\u9898\uff0c\u6211\u4f1a\u770b\u770b\u662f\u5426\u53ef\u4ee5\u7ed9\u51fa\u66f4\u597d\u7684\u7b54\u6848\u3002<\/p>\n
\u60a8\u662f\u8bf4\u60a8\u6709\u8868\u7684\u6253\u5370\u503c\uff0c\u4f46\u6570\u636e\u5e93\u6ca1\u6709\u54cd\u5e94\uff1f\u5176\u4ed6\u8bc4\u8bba\u8005\u662f\u6b63\u786e\u7684\uff0c\u800c\u4e0d\u662f\u201c_\u201d\uff0c\u5f97\u5230\u4e00\u4e2a\u771f\u6b63\u7684\u9519\u8bef\u548c fmt.println(err.error())\u3002<\/p>\n
\u7f16\u8f91 2\uff1a@jub0bs \u63d0\u51fa\u7684\u53e6\u4e00\u4e2a\u597d\u89c2\u70b9\u662f\uff0c\u8fd9\u662f\u4e00\u4e2a\u5de8\u5927\u7684\u6f0f\u6d1e\u3002 go \u5f88\u597d\u5730\u652f\u6301\u4e86\u8fd9\u4e00\u70b9\uff0c\u5141\u8bb8\u60a8\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a<\/p>\n
db.query(\"select * from ?\",table)<\/pre>\n
\u800c\u4e0d\u662f\u60a8\u5f53\u524d\u62e5\u6709\u7684\u3002<\/p>\n
\u6211\u521a\u521a\u8fd0\u884c\u4e86\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
results,err := publicDB.Query(\"SELECT * FROM \"+r.URL.Query().Get(\"name\"))+\" LIMIT 1\"\n    if err != nil {\n        fmt.Println(err.Error())\n    }\n    for results.Next(){\n        fmt.Println(results.Columns())\n    }<\/pre>\n
\u5e76\u4e14\u6210\u529f\u4e86\u3002\u6211\u8c03\u7528\u4e86 url <\/p>\n
\u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u4f7f\u7528 Golang \u4f7f\u7528 URL.Query().Get() \u586b\u5145 SELECT \u8bed\u53e5\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\u5728\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","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-207434","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207434","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=207434"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207434\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}