Qt QAxObject操作excel文件过程总结(转):

2023-12-28 11:55:34

　　正好同事问道Qt下操作excel. 转自：http://blog.csdn.net/a156392343/article/details/48092515

配制方面：

1、确保Excel软件在本地服务器注册成功，没注册成功的可以通过在运行中"E:\program Files\Microsoft Office\Office12\EXCEL.EXE" /regserver 手动注册，注意路径要用自己的excel路径。

2、确保组件配制正确，运行命令：dcomcnfg，查看DCOM配置下是否有Microsoft Excel Application，有的话万事大吉，开始设置（1）常规，身份验证：无（2）安全、配制权限自定义，控制权限，完全控制选中，保存

以上确保QAxObject可以正常被调用

程序方面：

1、工程pro文件添加

CONFIG += qaxcontainer

2、.h文件添加

      	 /1./打开

	void newExcel(const QString &fileName);

       //2.增加1个Worksheet

       void appendSheet(const QString &sheetName,int cnt);

       //3.向Excel单元格中写入数据

       void setCellValue(int row, int column, const QString &value);

       //4.保存Excel

      void saveExcel(const QString &fileName);

       //5.释放Excel

       void  freeExcel();

3、.cpp文件

//1.新建一个excel

void MainWindow::newExcel(const QString &fileName)

{        HRESULT r = OleInitialize(0);

         CoInitialize(0);

         if (r != S_OK && r != S_FALSE) {

             qWarning("Qt: Could not initialize OLE (error %x)\n", (unsigned int)r);

         pApplication = new QAxObject("Excel.Application");

              if(pApplication == NULL){

                  qWarning("pApplication\n");return;

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

    pApplication->setProperty("DisplayAlerts", false);//不显示任何警告信息。

    pWorkBooks = pApplication->querySubObject("Workbooks");

    QFile file(fileName);

    if (file.exists())

        pWorkBook = pWorkBooks->querySubObject("Open(const QString &)", fileName);

    else

         pWorkBooks->dynamicCall("Add");

         pWorkBook = pApplication->querySubObject("ActiveWorkBook");

    pSheets = pWorkBook->querySubObject("Sheets");

    pSheet = pSheets->querySubObject("Item(int)", 1);

//2.增加1个Worksheet

void MainWindow::appendSheet(const QString &sheetName,int cnt)

    QAxObject *pLastSheet = pSheets->querySubObject("Item(int)", cnt);

    pSheets->querySubObject("Add(QVariant)", pLastSheet->asVariant());

    pSheet = pSheets->querySubObject("Item(int)", cnt);

    pLastSheet->dynamicCall("Move(QVariant)", pSheet->asVariant());

    pSheet->setProperty("Name", sheetName);

//3.向Excel单元格中写入数据

void MainWindow::setCellValue(int row, int column, const QString &value)

    QAxObject *pRange = pSheet->querySubObject("Cells(int,int)", row, column);

    pRange->dynamicCall("Value", value);

//4.保存Excel

void MainWindow::saveExcel(const QString &fileName)

    pWorkBook->dynamicCall("SaveAs(const QString &)",

    QDir::toNativeSeparators(fileName));

//5.释放Excel

void  MainWindow::freeExcel()

    if (pApplication != NULL)

        pApplication->dynamicCall("Quit()");

        delete pApplication;

        pApplication = NULL;

附上测试的button槽函数

void MainWindow::on_pushButton_keting_clicked()

OleInitialize(0);

QString fileNametmp = "d:/112.xls"; //文件名可从此处修改

    newExcel(fileNametmp);

   // appendSheet("page1");

    setCellValue(3, 3,"34343");

    setCellValue(3, 6,"55555");

    saveExcel(fileNametmp);

    freeExcel();

    return;

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