Qt QAxObject操作excel文件过程总结(转):

  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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