我在Win2000下QT3.2.3的例程中连接MySQL时，编译可以，执行时报错“driver not loaded”，请各各位大侠帮忙解决，谢谢！我不知道去那里安装MySQL的驱动
程序如下：
#include <qapplication.h>
#include <qsqldatabase.h>
#include <qdatatable.h>
#include <qsqlcursor.h>
#include <qmessagebox.h>
/* Modify the following to match your environment */
/*QODBC3 (ODBC),
QOCI8 (Oracle),
QTDS7 (Sybase Adaptive Server),
QPSQL7 (PostgreSQL),
QMYSQL4 (MySQL),
and QDB2 (IBM DB2). */
#define DRIVER "QMYSQL3" /* see the Qt SQL documentation for a list of available drivers */
#define DATABASE "liming" /* the name of your database */
#define USER "liming" /* user name with appropriate rights */
#define PASSWORD "1978928" /* password for USER */
#define HOST "localhost" /* host on which the database is running */
class SimpleCursor : public QSqlCursor
{
public:
SimpleCursor () : QSqlCursor( "simpletable" ) {}
protected:
QSqlRecord* primeInsert()
{
/* a real-world application would use sequences, or the like */
QSqlRecord* buf = QSqlCursor::primeInsert();
QSqlQuery q( "select max(id)+1 from simpletable;" );
if ( q.next() )
buf->setValue( "id", q.value(0) );
return buf;
}
};
int main( int argc, char ** argv )
{
QApplication a( argc, argv );
QSqlDatabase *db = QSqlDatabase::addDatabase( DRIVER );
db->setDatabaseName( DATABASE );
db->setUserName( USER );
db->setPassword( PASSWORD );
db->setHostName( HOST );
if( !db->open() )
{
db->lastError().showMessage( "An error occured. Please read the README file in the sqltable"
"dir for more information.\n\n" );
return 1;
}
SimpleCursor cursor;
QDataTable table( &cursor ); /* data table uses our cursor */
table.addColumn( "name", "Name" );
table.addColumn( "address", "Address" );
table.setSorting( TRUE );
a.setMainWidget( &table );
table.refresh(); /* load data */
table.show(); /* show widget */
return a.exec();
}
[ 此贴被XChinux在2005-09-19 14:56重新编辑 ]
