关于QSQLITE driver not loaded的问题，求指点 [复制链接]

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QDir            dir;
    QString            strPath;
    QSqlDatabase    sql_db;

    //Logon.db
    sql_db    = QSqlDatabase::addDatabase( "QSQLITE" );
    sql_db.setDatabaseName( QCoreApplication::applicationDirPath() + "/Logon.db" );
    sql_db.setUserName( "root" );
    sql_db.setPassword( "123456" );
    if ( !dir.exists( QCoreApplication::applicationDirPath() + "/Logon.db" ) )
    {
        if ( sql_db.open() )
        {
            QSqlQuery sql_query;
            bool br = false;
            br = sql_query.exec( "create table Logon( UserName varchar( 255 ), Password varchar( 255 ), Remember int, AutoLogon int, LogonTime varchar( 255 ) )" );
            br = sql_query.exec( "create unique index Logon_index on Logon( UserName )" );
            sql_db.close();
        }
        else
            qDebug() << "′′½¨Logon.db꧰ü￡¡" << sql_db.lastError().text();
    }
    QSqlDatabase::removeDatabase( QCoreApplication::applicationDirPath() + "/Logon.db" );

这个数据库是QT 内置的，如果打不开可能的原因是：1.你QT 安装有错误或者不全！2.在QT目录下找到plugin目录。看看SQLITE的插件在不在，不在的话去网上下载试试！