聊聊QT添加MySQL驱动依赖的问题

#include <QCoreApplication>
#include <QSqlDatabase>
#include <QDebug>
#include <QStringList>
#include <QSqlQuery>

int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
// 输出可用数据库
qDebug() << “Available drivers:”;
QStringList drivers = QSqlDatabase::drivers();
foreach(QString driver, drivers)
qDebug() << driver;
return a.exec();
}

#include <QCoreApplication>
#include <QSqlDatabase>
#include <QDebug>
#include <QStringList>
#include <QSqlQuery>
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
// 打开MySQL
QSqlDatabase db = QSqlDatabase::addDatabase(“QMYSQL”);
db.setHostName(“localhost”);
db.setDatabaseName(“test”);
db.setUserName(“root”);
db.setPassword(“YOUR DATABASE PASSWORD”);
if (!db.open())
qDebug() << “Failed to connect to root mysql admin”;
else qDebug() << “open”;
QSqlQuery query(db);
//注意这里varchar一定要指定长度，不然会出错
query.exec(“create table student(id int primary key,name varchar(20))”);
query.exec(“insert into student values(1,’xiaogang’)”);
query.exec(“insert into student values(2,’xiaoming’)”);
query.exec(“insert into student values(3,’xiaohong’)”);
query.exec(“select id,name from student where id >= 1”);
while(query.next())
{
int value0 = query.value(0).toInt();
QString value1 = query.value(1).toString();
qDebug() << value0 << value1 ;
}
return a.exec();
}