{"id":97166,"date":"2024-10-20T15:33:16","date_gmt":"2024-10-20T07:33:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97166\/"},"modified":"2024-10-20T15:33:17","modified_gmt":"2024-10-20T07:33:17","slug":"qt%e4%b8%ad%e5%a6%82%e4%bd%95%e7%b7%a8%e5%af%ab%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%92%e5%85%a5%e8%aa%9e%e5%8f%a5-qt%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%92%e5%85%a5%e8%aa%9e%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97166\/","title":{"rendered":"Qt\u4e2d\u5982\u4f55\u7de8\u5beb\u6578\u64da\u5eab\u63d2\u5165\u8a9e\u53e5 (qt\u6578\u64da\u5eab\u63d2\u5165\u8a9e\u53e5)"},"content":{"rendered":"

Qt\u4e2d\u5982\u4f55\u7de8\u5beb\u6578\u64da\u5eab\u63d2\u5165\u8a9e\u53e5<\/h1>\n

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Qt\u6578\u64da\u5eab\u6a21\u584a\u6982\u8ff0<\/h2>\n

Qt\u63d0\u4f9b\u4e86QtSql\u6a21\u584a\uff0c\u9019\u662f\u4e00\u500b\u7528\u65bc\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u7684API\u3002\u5b83\u652f\u6301\u591a\u7a2e\u6578\u64da\u5eab\uff0c\u5305\u62ecSQLite\u3001MySQL\u3001PostgreSQL\u7b49\u3002\u4f7f\u7528QtSql\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u57f7\u884cSQL\u8a9e\u53e5\uff0c\u5305\u62ec\u63d2\u5165\u3001\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u522a\u9664\u7b49\u64cd\u4f5c\u3002<\/p>\n

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\n#include <QSqlDatabase>\n#include <QSqlError>\n#include <QSqlQuery>\n\nQSqlDatabase db = QSqlDatabase::addDatabase(\"QSQLITE\");\ndb.setDatabaseName(\"example.db\");\n\nif (!db.open()) {\n    qDebug() << \"\u7121\u6cd5\u9023\u63a5\u5230\u6578\u64da\u5eab\uff1a\" << db.lastError().text();\n}\n<\/code><\/pre>\n
\u7de8\u5beb\u63d2\u5165\u8a9e\u53e5<\/h2>\n
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\nQSqlQuery query;\nquery.prepare(\"INSERT INTO users (name, age) VALUES (:name, :age)\");\nquery.bindValue(\":name\", \"John Doe\");\nquery.bindValue(\":age\", 30);\n\nif (!query.exec()) {\n    qDebug() << \"\u63d2\u5165\u6578\u64da\u5931\u6557\uff1a\" << query.lastError().text();\n} else {\n    qDebug() << \"\u6578\u64da\u63d2\u5165\u6210\u529f\uff01\";\n}\n<\/code><\/pre>\n
\u4f7f\u7528\u4f54\u4f4d\u7b26<\/h3>\n
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\u6279\u91cf\u63d2\u5165\u6578\u64da<\/h2>\n
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\nQStringList names = {\"Alice\", \"Bob\", \"Charlie\"};\nQSqlQuery query;\nquery.prepare(\"INSERT INTO users (name) VALUES (:name)\");\n\nfor (const QString &name : names) {\n    query.bindValue(\":name\", name);\n    if (!query.exec()) {\n        qDebug() << \"\u63d2\u5165\u6578\u64da\u5931\u6557\uff1a\" << query.lastError().text();\n    }\n}\n<\/code><\/pre>\n
\u8655\u7406\u932f\u8aa4<\/h2>\n
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\u7e3d\u7d50<\/h2>\n
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