{"id":97154,"date":"2024-10-20T15:27:17","date_gmt":"2024-10-20T07:27:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97154\/"},"modified":"2024-10-20T15:27:18","modified_gmt":"2024-10-20T07:27:18","slug":"qt%e5%af%a6%e7%8f%be%e8%bc%95%e9%ac%86%e8%a4%87%e8%a3%bd%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e7%b5%90%e6%a7%8b-qt-%e8%a4%87%e8%a3%bd%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e7%b5%90%e6%a7%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97154\/","title":{"rendered":"Qt\u5be6\u73fe\u8f15\u9b06\u8907\u88fd\u6578\u64da\u5eab\u8868\u7d50\u69cb (qt \u8907\u88fd\u6578\u64da\u5eab\u8868\u7d50\u69cb)"},"content":{"rendered":"<h1 id=\"qt%e5%af%a6%e7%8f%be%e8%bc%95%e9%ac%86%e8%a4%87%e8%a3%bd%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e7%b5%90%e6%a7%8b-aSMoTilKwB\">Qt\u5be6\u73fe\u8f15\u9b06\u8907\u88fd\u6578\u64da\u5eab\u8868\u7d50\u69cb<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u8207\u64cd\u4f5c\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u5c24\u5176\u662f\u5728\u4f7f\u7528Qt\u9032\u884c\u958b\u767c\u6642\uff0c\u5982\u4f55\u9ad8\u6548\u5730\u8907\u88fd\u6578\u64da\u5eab\u8868\u7d50\u69cb\u6210\u70ba\u4e86\u8a31\u591a\u958b\u767c\u8005\u95dc\u6ce8\u7684\u7126\u9ede\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Qt\u4f86\u8f15\u9b06\u8907\u88fd\u6578\u64da\u5eab\u8868\u7d50\u69cb\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e8%a4%87%e8%a3%bd%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e7%b5%90%e6%a7%8b%ef%bc%9f-aSMoTilKwB\">\u70ba\u4ec0\u9ebc\u9700\u8981\u8907\u88fd\u6578\u64da\u5eab\u8868\u7d50\u69cb\uff1f<\/h2>\n<p>\u8907\u88fd\u6578\u64da\u5eab\u8868\u7d50\u69cb\u7684\u9700\u6c42\u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u9700\u8981\u5275\u5efa\u6e2c\u8a66\u74b0\u5883\u4ee5\u9032\u884c\u958b\u767c\u548c\u6e2c\u8a66\u3002<\/li>\n<li>\u9700\u8981\u5099\u4efd\u73fe\u6709\u7684\u8868\u7d50\u69cb\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li>\u9700\u8981\u5728\u4e0d\u540c\u7684\u6578\u64da\u5eab\u4e4b\u9593\u9032\u884c\u7d50\u69cb\u7684\u8f49\u79fb\u3002<\/li>\n<\/ul>\n<h2 id=\"qt%e8%88%87%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e9%80%a3%e6%8e%a5-aSMoTilKwB\">Qt\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5<\/h2>\n<p>\u5728Qt\u4e2d\uff0c\u4f7f\u7528QSql\u6a21\u584a\u4f86\u9032\u884c\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u3002\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u78ba\u4fdd\u5df2\u7d93\u5b89\u88dd\u4e86\u76f8\u61c9\u7684\u6578\u64da\u5eab\u9a45\u52d5\uff0c\u7136\u5f8c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u4ee3\u78bc\u4f86\u9023\u63a5\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>\n#include &lt;QSqlDatabase&gt;\n#include &lt;QSqlQuery&gt;\n\nQSqlDatabase db = QSqlDatabase::addDatabase(\"QMYSQL\");\ndb.setHostName(\"localhost\");\ndb.setDatabaseName(\"your_database\");\ndb.setUserName(\"your_username\");\ndb.setPassword(\"your_password\");\n\nif (!db.open()) {\n    qDebug() &lt;&lt; \"Database connection failed!\";\n}\n<\/code><\/pre>\n<h2 id=\"%e8%a4%87%e8%a3%bd%e8%a1%a8%e7%b5%90%e6%a7%8b%e7%9a%84%e6%ad%a5%e9%a9%9f-aSMoTilKwB\">\u8907\u88fd\u8868\u7d50\u69cb\u7684\u6b65\u9a5f<\/h2>\n<p>\u8907\u88fd\u8868\u7d50\u69cb\u7684\u57fa\u672c\u6b65\u9a5f\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u7372\u53d6\u539f\u59cb\u8868\u7684\u7d50\u69cb\u4fe1\u606f\u3002<\/li>\n<li>\u751f\u6210\u65b0\u7684\u8868\u5275\u5efa\u8a9e\u53e5\u3002<\/li>\n<li>\u57f7\u884c\u5275\u5efa\u8a9e\u53e5\u4ee5\u5275\u5efa\u65b0\u8868\u3002<\/li>\n<\/ol>\n<h3 id=\"%e7%8d%b2%e5%8f%96%e5%8e%9f%e5%a7%8b%e8%a1%a8%e7%9a%84%e7%b5%90%e6%a7%8b%e4%bf%a1%e6%81%af-aSMoTilKwB\">\u7372\u53d6\u539f\u59cb\u8868\u7684\u7d50\u69cb\u4fe1\u606f<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528SHOW CREATE TABLE\u8a9e\u53e5\u4f86\u7372\u53d6\u539f\u59cb\u8868\u7684\u7d50\u69cb\u4fe1\u606f\uff1a<\/p>\n<pre><code>\nQString tableName = \"original_table\";\nQSqlQuery query;\nquery.exec(\"SHOW CREATE TABLE \" + tableName);\n\nif (query.next()) {\n    QString createTableSQL = query.value(1).toString();\n    qDebug() &lt;&lt; \"Create Table SQL:\" &lt;&lt; createTableSQL;\n}\n<\/code><\/pre>\n<h3 id=\"%e7%94%9f%e6%88%90%e6%96%b0%e7%9a%84%e8%a1%a8%e5%89%b5%e5%bb%ba%e8%aa%9e%e5%8f%a5-aSMoTilKwB\">\u751f\u6210\u65b0\u7684\u8868\u5275\u5efa\u8a9e\u53e5<\/h3>\n<p>\u5728\u7372\u53d6\u5230\u539f\u59cb\u8868\u7684\u5275\u5efa\u8a9e\u53e5\u5f8c\uff0c\u6211\u5011\u53ef\u4ee5\u5c0d\u5176\u9032\u884c\u4fee\u6539\uff0c\u4ee5\u751f\u6210\u65b0\u7684\u8868\u5275\u5efa\u8a9e\u53e5\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5c07\u8868\u540d\u66ff\u63db\u70ba\u65b0\u7684\u8868\u540d\uff1a<\/p>\n<pre><code>\nQString newTableName = \"new_table\";\nQString newCreateTableSQL = createTableSQL;\nnewCreateTableSQL.replace(tableName, newTableName);\n<\/code><\/pre>\n<h3 id=\"%e5%9f%b7%e8%a1%8c%e5%89%b5%e5%bb%ba%e8%aa%9e%e5%8f%a5%e4%bb%a5%e5%89%b5%e5%bb%ba%e6%96%b0%e8%a1%a8-aSMoTilKwB\">\u57f7\u884c\u5275\u5efa\u8a9e\u53e5\u4ee5\u5275\u5efa\u65b0\u8868<\/h3>\n<p>\u6700\u5f8c\uff0c\u6211\u5011\u53ef\u4ee5\u57f7\u884c\u751f\u6210\u7684\u65b0\u5275\u5efa\u8a9e\u53e5\u4f86\u5275\u5efa\u65b0\u8868\uff1a<\/p>\n<pre><code>\nif (query.exec(newCreateTableSQL)) {\n    qDebug() &lt;&lt; \"Table created successfully!\";\n} else {\n    qDebug() &lt;&lt; \"Failed to create table:\" &lt;&lt; query.lastError().text();\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-aSMoTilKwB\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u4f7f\u7528Qt\u4f86\u8907\u88fd\u6578\u64da\u5eab\u8868\u7d50\u69cb\u3002\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u958b\u767c\u6548\u7387\uff0c\u9084\u80fd\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u7d50\u69cb\u3002\u5c0d\u65bc\u9700\u8981\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u638c\u63e1\u9019\u4e00\u6280\u8853\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528Qt\u8f15\u9b06\u8907\u88fd\u6578\u64da\u5eab\u8868\u7d50\u69cb\uff0c\u5feb\u901f\u5be6\u73fe\u6578\u64da\u5eab\u7ba1\u7406\uff0c\u63d0\u5347\u958b\u767c\u6548\u7387\uff0c\u7c21\u5316\u6578\u64da\u64cd\u4f5c\u6d41\u7a0b\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-97154","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97154","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=97154"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97154\/revisions"}],"predecessor-version":[{"id":97155,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97154\/revisions\/97155"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=97154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=97154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=97154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}