#include <QApplication>
#include <QSqlDatabase>
#include <QDebug>
#include <QMessageBox>
#include <QSqlQuery>
#include <QVariant>
#include <QTime>
#include <QTextCodec>
void writeExcel(QString excelFilePath)
{
// 创建一个数据库实例, 设置连接字符串
QSqlDatabase db = QSqlDatabase::addDatabase("QODBC","excelexport");
QString dsn = QString("DRIVER={Microsoft Excel Driver (*.xls)};DSN=''; FIRSTROWHASNAMES=1; READONLY=FALSE;CREATE_DB=\"%1\";DBQ=%2").
arg(excelFilePath).arg(excelFilePath);
db.setDatabaseName(dsn);
// 打开数据库
if (!db.open())
{
qDebug()<< "open false";
QMessageBox::about(NULL, "r", "open false");
}
// 创建表格
QString sql = "create table sheet (name TEXT, age NUMBER)";
QSqlQuery query(db);
if (!query.exec(sql))
{
qDebug()<< "create table false!";
QMessageBox::about(NULL, "r", "create table false!");
}
// 写入数据
db.exec( "insert into sheet(name, age) values('ctb', '28')");
db.exec( "insert into sheet(name, age) values('xw', '19')");
db.exec( "insert into sheet(name, age) values('lg', '34')");
// 关闭数据库
db.close();
}
void readExcel(const QString excelPath)
{
// excel 数据库连接字符串 须要QODBC 驱动
QSqlDatabase db = QSqlDatabase::addDatabase("QODBC","excelexport");
QString connString = QString("Driver={Microsoft Excel Driver (*.xls)};Readonly=1;DriverId=790;Dbq=%1;DefaultDir=D:\\").arg(excelPath);
db.setDatabaseName(connString);
// 打开数据库
if (!db.open())
{
qDebug()<< "open false";
QMessageBox::about(NULL, "r", "open false");
}
//查询数据
QString sql = "Select * from [sheet$]";
QSqlQuery query(sql, db);
while (query.next()) {
//读取数据
QString name = query.value(0).toString();
int age = query.value(1).toInt();
qDebug()<< name << age <<endl;
}
// 关闭数据库
db.close();
}
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
//中文支持
QTextCodec::setCodecForLocale(QTextCodec::codecForName("system"));
QTextCodec::setCodecForTr(QTextCodec::codecForName("system"));
QTextCodec::setCodecForCStrings(QTextCodec::codecForName("system"));
writeExcel("D:\\test01.xls");
readExcel("D:\\test01.xls");
return a.exec();
}
写入结果:
读取打印结果: