Qt Tablewidget表格数据的导出和导入

QString strData;
void MainWindow::on_pushButton_17_clicked()
{
	//首先我们需要创建一个文件选择对话框
    QString curPash =QDir::currentPath(); //获取当前路径
    QString dlgTitle="选择表格文件";
    //xls和xlsx格式的文件都可以，xlsx兼容xls，注意每一种类型后面要加两个分号
    QString filter="表格文件(*.xls *.xlsx);;xls文件(*.xls);;xlsx文件(*.xlsx);;所有文件(*.*)";
    //创建文件选择对话框
    QStringList fileList = QFileDialog::getOpenFileNames(this,dlgTitle,curPash,filter);
    if(fileList.count()<1)
        return;
    for(int i = 0;i<fileList.count();i++)
    {
    	//保存文件地址
        strData = fileList.at(i);
    }
    //连接Excel控件
    QAxObject excel("Excel.Application");
    //不显示任何警告信息
    excel.setProperty("Visible",false);
    //获取工作簿集合
    QAxObject *workbooks = excel.querySubObject("WorkBooks");
    workbooks->dynamicCall("Open (const QString&)",str);
    //获取活动工作簿
    QAxObject *workbook = excel.querySubObject("ActiveWorkBook");
    //获取工作表集合的工作表1，即sheet1
    QAxObject *worksheet = workbook->querySubObject("Sheets(int)",1);
    QAxObject *range; //获取cell的值
    QString strVal="hull";
    QStringList header;
    //设置初始表格行列都为0
    ui->tableWidget->setRowCount(0); //设置行数为0
    ui->tableWidget->setColumnCount(0); //设置列数为0

    int count =0;
    for(int i = 1;i<row;i++)
    {
    	//注意setRowCount里面的函数不是追加，而是总数，很多人最开始都把这个函数以为是总数，造成程序经常崩溃
        ui->tableWidget->setRowCount(ui->tableWidget->rowCount()+1);
        for(int j = 1;j<column;j++)
        {
            if(i == 1)
            {
                ui->tableWidget->setColumnCount(ui->tableWidget->columnCount()+1);
                range = worksheet->querySubObject("Cells(int,int)",i,j); //获取cell的值
                strVal = range->dynamicCall("Value2()").toString();
                header<<strVal;
                //设置表格头
            }
            else
            {
                probar->setValue(++count);
                range = worksheet->querySubObject("Cells(int,int)",i,j); //获取cell的值
                strVal = range->dynamicCall("Value2()").toString();
                ui->tableWidget->setItem(i-2,j-1,new QTableWidgetItem(strVal));
            }
        }
        if(i == 1)
        {
            ui->tableWidget->setHorizontalHeaderLabels(header);
        }
    }
    ui->tableWidget->setRowCount(ui->tableWidget->rowCount()-1);
    }
}

void MainWindow::on_pushButton_23_clicked()
{
    //获取保存路径
       QString filepath=QFileDialog::getSaveFileName(this,tr("Save"),".",tr(" (*.xlsx)"));
       if(!filepath.isEmpty()){
           QAxObject *excel = new QAxObject(this);
           //连接Excel控件
           excel->setControl("Excel.Application");
           //不显示窗体
           excel->dynamicCall("SetVisible (bool Visible)","false");
           //不显示任何警告信息。如果为true那么在关闭是会出现类似“文件已修改，是否保存”的提示
           excel->setProperty("DisplayAlerts", false);
           //获取工作簿集合
           QAxObject *workbooks = excel->querySubObject("WorkBooks");
           //新建一个工作簿
           workbooks->dynamicCall("Add");
           //获取当前工作簿
           QAxObject *workbook = excel->querySubObject("ActiveWorkBook");
           //获取工作表集合
           QAxObject *worksheets = workbook->querySubObject("Sheets");
           //获取工作表集合的工作表1，即sheet1
           QAxObject *worksheet = worksheets->querySubObject("Item(int)",1);
           //设置表头值
           for(int i=1;i<ui->tableWidget->columnCount()+1;i++)
           {
               //设置设置某行某列
               QAxObject *Range = worksheet->querySubObject("Cells(int,int)", 1, i);
               Range->dynamicCall("SetValue(const QString &)",ui->tableWidget->horizontalHeaderItem(i-1)->text());
           }
           //设置表格数据
           for(int i = 1;i<ui->tableWidget->rowCount()+1;i++)
           {
               for(int j = 1;j<ui->tableWidget->columnCount()+1;j++)
               {
                   QAxObject *Range = worksheet->querySubObject("Cells(int,int)", i+1, j);
                   Range->dynamicCall("SetValue(const QString &)",ui->tableWidget->item(i-1,j-1)->data(Qt::DisplayRole).toString());
               }
           }
           workbook->dynamicCall("SaveAs(const QString&)",QDir::toNativeSeparators(filepath));//保存至filepath
           workbook->dynamicCall("Close()");//关闭工作簿
           excel->dynamicCall("Quit()");//关闭excel
           delete excel;
           excel=NULL;
           qDebug() << "\n导出成功啦！！！";
       }
}