QT connection to Shentong database

1. First go to the official website of Shentong database to download " Shentong database " System .

 2. After downloading, there is a " Shentong database - Database quick start .pdf" Operation document of .

3. Install according to the operating documentation .

4. After installation, check whether the service of Shentong database is started , If it is not started, please start it manually .

5. Can pass odbc Data source function view the installed Shentong database driver .

 

 6. After installation, there will be a... In the program directory " Shentong database - Database development manual "

7. We find " Use SQLDriverConnect Connect " , There are other ways to connect , Please check the details by yourself .

8.Qt The connection code is as follows :

QSqlDatabase KQProduct::getQSqlDatabaseConn()
{
    QSqlDatabase database = QSqlDatabase::database("KqMobileExChange");    // Connection name 
    if(database.isOpen())
        return database;
    database = QSqlDatabase::addDatabase("QODBC","KqMobileExChange");

    const QString strName(QString("DRIVER={OSCAR ODBC DRIVER};SERVER=%1;UID=%2;PWD=%3;DATABASE=%4;Port=%5")
                          .arg(m_sServer)                // Service address 
                          .arg(m_sUser)                  // User name 
                          .arg(m_sPwd)                   // User password 
                          .arg(m_sDatabase)              // Database instance 
                          .arg(m_nPort));                // Port number 
    database.setDatabaseName(strName);
    if (!database.open())
    {
        QMessageBox::critical(0, QString::fromLocal8Bit(" Database connection error "),database.lastError().text());
    }
    return database;
}

 

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