vc.net中使用Qt连接SQLServer数据库

vc.net中使用Qt连接SQLServer数据库

//1.添加SQL库:"Qt project setting"-->"Qt Modules",在SQL library复选框前打勾.
//2.添加头文件
#include<QtSql>
#include <QtSql/QSqlDatabase>
#include <QtSql/QSqlTableModel>
#include<QtSql/QSqlError>
//3.创建连接
qDebug()<<"available driver:"; 
 QStringList drivers=QSqlDatabase::drivers();
 foreach(QString driver,drivers)
   qDebug()<<"/t"<<driver;
 QSqlDatabase db=QSqlDatabase::addDatabase("QODBC3"); 
 qDebug()<<"ODBC driver?"<<db.isValid(); 
 QString dsn=QString::fromLocal8Bit("DRIVER={SQL SERVER};SERVER=192.168.0.123;DATABASE=test");      db.setHostName("192.168.0.123");
 db.setDatabaseName(dsn);
 db.setUserName("sa");
 db.setPassword("111111");
 if(!db.open()) 
 { 
   qDebug()<<db.lastError().text(); 
    QMessageBox::critical(0,QObject::tr("Database Error"),db.lastError().text()); 
    return false;
 }
//4.查询数据
QSqlQuery query;
query.exec("select * from mytable");
while(query.next())
{
.........
}