QT 通过QAxObject与本地应用程序读取Excel内容

首先在配置中加入

QT += axcontainer

在开发过程中，经常需要与Excel文件进行交互，例如读取数据、写入数据或进行格式设置。Qt提供了一个强大的类QAxObject，通过它可以方便地操作Excel文件。

QAxObject excel("ket.Application");
    if (excel.isNull()) {
        QMessageBox::critical(this, "错误", "没有发现Excel可执行程序，请安装WPS");
        return;
    }
    excel.setProperty("Visible", false);
    QAxObject *workbooks = excel.querySubObject("Workbooks");
    if (!workbooks) {
        QMessageBox::critical(this, "错误", "无法访问文件!");
        return;
    }
    workbooks->dynamicCall("Open(const QString&)", xlsPath);
    QAxObject * workbook = excel.querySubObject("ActiveWorkBook");
    QAxObject *sheet = workbook->querySubObject("Worksheets(int)", 1);
    if (!sheet) {
        QMessageBox::critical(this, "错误", "无法访问表格1!");
        return;
    }
    QAxObject *usedRange = sheet->querySubObject("UsedRange");
    if (!usedRange) {
        QMessageBox::critical(this, "错误", "无法访问使用范围!");
        return;
    }
    QAxObject *rows = usedRange->querySubObject("Rows");
    QAxObject *columns = usedRange->querySubObject("Columns");
    int rowCount = rows->property("Count").toInt();
    int colCount = columns->property("Count").toInt();
    for (int row = 1; row <= rowCount; ++row) {
        for (int col = 1; col <= colCount; ++col) {
            QAxObject *cell = sheet->querySubObject("Cells(int,int)", row, col);
            QString cellValue = cell->dynamicCall("Value2()").toString();
            delete cell;
        }
    }