{"id":97144,"date":"2024-10-20T15:22:18","date_gmt":"2024-10-20T07:22:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97144\/"},"modified":"2024-10-20T15:22:19","modified_gmt":"2024-10-20T07:22:19","slug":"qt%e5%b0%81%e8%a3%9dsqlite%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%ae%8c%e7%be%8e%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-qt-sqlite%e6%95%b8%e6%93%9a%e5%ba%ab%e5%b0%81%e8%a3%9d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97144\/","title":{"rendered":"Qt\u5c01\u88ddSQLite\u6578\u64da\u5eab\u7684\u5b8c\u7f8e\u89e3\u6c7a\u65b9\u6848 (qt sqlite\u6578\u64da\u5eab\u5c01\u88dd)"},"content":{"rendered":"<h1 id=\"qt%e5%b0%81%e8%a3%9dsqlite%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%ae%8c%e7%be%8e%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-LREpLXoiFZ\">Qt\u5c01\u88ddSQLite\u6578\u64da\u5eab\u7684\u5b8c\u7f8e\u89e3\u6c7a\u65b9\u6848<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5e8f\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u9078\u64c7\u5c0d\u65bc\u61c9\u7528\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u81f3\u95dc\u91cd\u8981\u3002SQLite\u4f5c\u70ba\u4e00\u7a2e\u8f15\u91cf\u7d1a\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff0c\u56e0\u5176\u7c21\u55ae\u6613\u7528\u548c\u9ad8\u6548\u7684\u7279\u6027\u800c\u53d7\u5230\u5ee3\u6cdb\u6b61\u8fce\u3002Qt\u4f5c\u70ba\u4e00\u500b\u8de8\u5e73\u53f0\u7684\u61c9\u7528\u7a0b\u5e8f\u958b\u767c\u6846\u67b6\uff0c\u63d0\u4f9b\u4e86\u5c0dSQLite\u7684\u826f\u597d\u652f\u6301\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Qt\u5c01\u88ddSQLite\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87sqlite%ef%bc%9f-LREpLXoiFZ\">\u70ba\u4ec0\u9ebc\u9078\u64c7SQLite\uff1f<\/h2>\n<p>SQLite\u662f\u4e00\u500b\u81ea\u7d66\u81ea\u8db3\u7684\u3001\u7121\u4f3a\u670d\u5668\u7684\u3001\u96f6\u914d\u7f6e\u7684SQL\u6578\u64da\u5eab\u5f15\u64ce\u3002\u5b83\u7684\u4e3b\u8981\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u8f15\u91cf\u7d1a\uff1a<\/strong>SQLite\u7684\u5eab\u6587\u4ef6\u975e\u5e38\u5c0f\uff0c\u9069\u5408\u5d4c\u5165\u5f0f\u7cfb\u7d71\u548c\u79fb\u52d5\u61c9\u7528\u3002<\/li>\n<li><strong>\u6613\u65bc\u4f7f\u7528\uff1a<\/strong>\u7121\u9700\u5b89\u88dd\u548c\u914d\u7f6e\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5feb\u901f\u4e0a\u624b\u3002<\/li>\n<li><strong>\u8de8\u5e73\u53f0\uff1a<\/strong>\u652f\u6301\u591a\u7a2e\u64cd\u4f5c\u7cfb\u7d71\uff0c\u5305\u62ecWindows\u3001Linux\u548cmacOS\u3002<\/li>\n<li><strong>\u9ad8\u6548\u6027\uff1a<\/strong>\u5c0d\u65bc\u5c0f\u578b\u5230\u4e2d\u578b\u6578\u64da\u96c6\uff0cSQLite\u7684\u6027\u80fd\u8868\u73fe\u512a\u7570\u3002<\/li>\n<\/ul>\n<h2 id=\"qt%e8%88%87sqlite%e7%9a%84%e9%9b%86%e6%88%90-LREpLXoiFZ\">Qt\u8207SQLite\u7684\u96c6\u6210<\/h2>\n<p>Qt\u63d0\u4f9b\u4e86\u5c0dSQLite\u7684\u5167\u5efa\u652f\u6301\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u901a\u904eQt\u7684SQL\u6a21\u584a\u8f15\u9b06\u5730\u8207SQLite\u9032\u884c\u4ea4\u4e92\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5728Qt\u4e2d\u4f7f\u7528SQLite\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%b7%bb%e5%8a%a0qt-sql%e6%a8%a1%e5%a1%8a-LREpLXoiFZ\">1. \u6dfb\u52a0Qt SQL\u6a21\u584a<\/h3>\n<p>\u5728\u4f60\u7684Qt\u9805\u76ee\u6587\u4ef6\uff08.pro\uff09\u4e2d\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u884c\u4ee5\u5305\u542bQt SQL\u6a21\u584a\uff1a<\/p>\n<pre><code>QT += sql<\/code><\/pre>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-LREpLXoiFZ\">2. \u5275\u5efa\u6578\u64da\u5eab\u9023\u63a5<\/h3>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\u5275\u5efa\u4e00\u500bSQLite\u6578\u64da\u5eab\u9023\u63a5\uff1a<\/p>\n<pre><code>#include &lt;QSqlDatabase&gt;\n#include &lt;QSqlError&gt;\n#include &lt;QSqlQuery&gt;\n\nQSqlDatabase db = QSqlDatabase::addDatabase(\"QSQLITE\");\ndb.setDatabaseName(\"example.db\");\n\nif (!db.open()) {\n    qDebug() &lt;&lt; \"\u7121\u6cd5\u9023\u63a5\u5230\u6578\u64da\u5eab\uff1a\" &lt;&lt; db.lastError().text();\n}\n<\/code><\/pre>\n<h3 id=\"3-%e5%89%b5%e5%bb%ba%e8%a1%a8%e6%a0%bc-LREpLXoiFZ\">3. \u5275\u5efa\u8868\u683c<\/h3>\n<p>\u4e00\u65e6\u9023\u63a5\u6210\u529f\uff0c\u53ef\u4ee5\u4f7f\u7528SQL\u8a9e\u53e5\u5275\u5efa\u8868\u683c\uff1a<\/p>\n<pre><code>QSqlQuery query;\nquery.exec(\"CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY, name TEXT, age INTEGER)\");\n<\/code><\/pre>\n<h3 id=\"4-%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-LREpLXoiFZ\">4. \u63d2\u5165\u6578\u64da<\/h3>\n<p>\u63d2\u5165\u6578\u64da\u7684\u793a\u4f8b\u4ee3\u78bc\u5982\u4e0b\uff1a<\/p>\n<pre><code>query.prepare(\"INSERT INTO users (name, age) VALUES (?, ?)\");\nquery.addBindValue(\"Alice\");\nquery.addBindValue(30);\nquery.exec();\n<\/code><\/pre>\n<h3 id=\"5-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-LREpLXoiFZ\">5. \u67e5\u8a62\u6578\u64da<\/h3>\n<p>\u67e5\u8a62\u6578\u64da\u7684\u793a\u4f8b\u4ee3\u78bc\u5982\u4e0b\uff1a<\/p>\n<pre><code>query.exec(\"SELECT * FROM users\");\nwhile (query.next()) {\n    int id = query.value(0).toInt();\n    QString name = query.value(1).toString();\n    int age = query.value(2).toInt();\n    qDebug() &lt;&lt; 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