Question

我有一张6列和50k行的表格。我想复制一行n次。现在我这样做：

for (int i=0; i<=excel_max_row; i++) {
        row = sheet3.createRow((short) i);
        cell = row.createCell(0);
        cell.setCellFormula("IFERROR(LOOKUP(Template!A"+(i+2)+",'Dropdown-Values'!A:A,'Dropdown-Values'!B:B),\"\")");

        cell = row.createCell(1);
        cell.setCellFormula("IF(Template!B"+(i+2)+"=0,\"\",Template!B"+(i+2)+")");

        cell = row.createCell(2);
        cell.setCellFormula("IFERROR(LOOKUP(Template!C"+(i+2)+",'Dropdown-Values'!C:C,'Dropdown-Values'!D:D),\"\")");

        cell = row.createCell(3);
        cell.setCellFormula("IFERROR(LOOKUP(Template!D"+(i+2)+",'Dropdown-Values'!E:E,'Dropdown-Values'!F:F),\"\")");

        cell = row.createCell(4);
        cell.setCellFormula("IFERROR(LOOKUP(Template!E"+(i+2)+",'Dropdown-Values'!E:E,'Dropdown-Values'!F:F),\"\")");

        cell = row.createCell(5);
        cell.setCellFormula("IF(Template!F"+(i+2)+"=0,\"\",Template!F"+(i+2)+")");
}
XSSFFormulaEvaluator.evaluateAllFormulaCells(wb);

它有效，但速度很慢，因为excel_max_row最高可达50k。有没有办法快速复制一行n次与所有forumals？

非常感谢

Answer 1

我在用户打开文件时评估所有公式：

wb.setForceFormulaRecalculation(true);

Apache POI复制行，公式为n次

1 个答案: