qtablewidget 导出为 excel

在 Qt 5.2 中使用 OLE 将 qtablewidget 导出为 excel，效果如下：

只用了一个函数，大家可以把它粘贴到自己的类里使用。

在头文件中请包含以下文件：

#include 

#include 

#include 

#include 

#include 

参数说明： 

table: 要导出的  QTableWidget

title: 标题，显示在第一行

void Table2Excel(QTableWidget *table,QString title)

{

    QString fileName = QFileDialog::getSaveFileName(table, "保存",

            QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation),

            "Excel 文件(*.xls *.xlsx)");

    if (fileName!="")

    {

        QAxObject *excel = new QAxObject;

        if (excel->setControl("Excel.Application")) //连接Excel控件

        {

            excel->dynamicCall("SetVisible (bool Visible)","false");//不显示窗体

            excel->setProperty("DisplayAlerts", 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

            QAxObject *workbooks = excel->querySubObject("WorkBooks");//获取工作簿集合

            workbooks->dynamicCall("Add");//新建一个工作簿

            QAxObject *workbook = excel->querySubObject("ActiveWorkBook");//获取当前工作簿

            QAxObject *worksheet = workbook->querySubObject("Worksheets(int)", 1);

            int i,j,colcount=table->columnCount();

            QAxObject *cell,*col;

            //标题行

            cell=worksheet->querySubObject("Cells(int,int)", 1, 1);

            cell->dynamicCall("SetValue(const QString&)", title);

            cell->querySubObject("Font")->setProperty("Size", 18);

            //调整行高

            worksheet->querySubObject("Range(const QString&)", "1:1")->setProperty("RowHeight", 30);

            //合并标题行

            QString cellTitle;

            cellTitle.append("A1:");

            cellTitle.append(QChar(colcount - 1 + 'A'));

            cellTitle.append(QString::number(1));

            QAxObject *range = worksheet->querySubObject("Range(const QString&)", cellTitle);

            range->setProperty("WrapText", true);

            range->setProperty("MergeCells", true);

            range->setProperty("HorizontalAlignment", -4108);//xlCenter

            range->setProperty("VerticalAlignment", -4108);//xlCenter

            //列标题

            for(i=0;i 
  
            {
 
  
                QString columnName;
 
  
                columnName.append(QChar(i  + 'A'));
 
  
                columnName.append(":");
 
  
                columnName.append(QChar(i + 'A'));
 
  
 
  
                col = worksheet->querySubObject("Columns(const QString&)", columnName);
 
  
                col->setProperty("ColumnWidth", table->columnWidth(i)/6);
 
  
 
  
                cell=worksheet->querySubObject("Cells(int,int)", 2, i+1);
 
  
                columnName=table->horizontalHeaderItem(i)->text();
 
  
                cell->dynamicCall("SetValue(const QString&)", columnName);
 
  
                cell->querySubObject("Font")->setProperty("Bold", true);
 
  
                cell->querySubObject("Interior")->setProperty("Color",QColor(191, 191, 191));
 
  
                cell->setProperty("HorizontalAlignment", -4108);//xlCenter
 
  
                cell->setProperty("VerticalAlignment", -4108);//xlCenter
 
  
            }
 
  
 
  
 
  
            //数据区
 
  
            for(i=0;irowCount();i++){
 
  
                for (j=0;j 
  
                {
 
  
                    worksheet->querySubObject("Cells(int,int)", i+3, j+1)->dynamicCall("SetValue(const QString&)", table->item(i,j)?table->item(i,j)->text():"");
 
  
                }
 
  
            }
 
  
 
  
            //画框线
 
  
            QString lrange;
 
  
            lrange.append("A2:");
 
  
            lrange.append(colcount - 1 + 'A');
 
  
            lrange.append(QString::number(table->rowCount() + 2));
 
  
            range = worksheet->querySubObject("Range(const QString&)", lrange);
 
  
            range->querySubObject("Borders")->setProperty("LineStyle", QString::number(1));
 
  
            range->querySubObject("Borders")->setProperty("Color", QColor(0, 0, 0));
 
  
 
  
            //调整数据区行高
 
  
            QString rowsName;
 
  
            rowsName.append("2:");
 
  
            rowsName.append(QString::number(table->rowCount() + 2));
 
  
            range = worksheet->querySubObject("Range(const QString&)", rowsName);
 
  
            range->setProperty("RowHeight", 20);
 
  
 
  
            workbook->dynamicCall("SaveAs(const QString&)",QDir::toNativeSeparators(fileName));//保存至fileName
 
  
            workbook->dynamicCall("Close()");//关闭工作簿
 
  
            excel->dynamicCall("Quit()");//关闭excel
 
  
            delete excel;
 
  
            excel=NULL;
 
  
 
  
            if (QMessageBox::question(NULL,"完成","文件已经导出，是否现在打开？",QMessageBox::Yes|QMessageBox::No)==QMessageBox::Yes)
 
  
            {
 
  
                QDesktopServices::openUrl(QUrl("file:///" + QDir::toNativeSeparators(fileName)));
 
  
            }
 
  
        }
 
  
        else
 
  
        {
 
  
            QMessageBox::warning(NULL,"错误","未能创建 Excel 对象，请安装 Microsoft Excel。",QMessageBox::Apply);
 
  
        }
 
  
    }
 
  
 
  
}
 
  
 
  
 
  

 更多 Excel Ole 操作请参阅  Excel Object Model Reference