Excel 中的公式单元格显示#NAME？

Question

我正在尝试添加一个 Excel 公式来根据某些条件计算升级工作量，这些条件将引用同一 Excel 工作表中的其他列。

下面是我的公式

=@IFERROR(@IFS(C3="css", IFS(D3>0.5, "High",
 D3>0.3, "Medium", D3>0.2, "Low",D3>0,"Very Low", 
 D3=0, "None")),
 IFS(D3>0.5,"High",D3>0.3,"Medium",D3>0.2,"Low",D3>0,
 "Very Low",D3=0,"None"))

不计算公式单元格的值。当您选择一个单元格并按 Enter 键时，会出现弹出警告，并且公式会被正确计算。

示例代码

import java.awt.Desktop;
import java.io.File;
import java.io.FileOutputStream;

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFFormulaEvaluator;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class CreateExcekFormula {

    public static void main(String[] args) throws Exception {

        try (Workbook workbook = new XSSFWorkbook();
                FileOutputStream fileout = new FileOutputStream("ItemFilter.xlsx")) {

            Sheet dataSheet = workbook.createSheet("Data");

            Row row;
            Cell cell;
            String strFormula = "IFERROR(IFS(%s=\"css\", IFS(%s>0.5, \"High\", %s>0.3, \"Medium\", %s>0.2, \"Low\", %s>0, \"Very Low\", %s=0, \"None\")),IFS(%s>0.5, \"High\", %s>0.3, \"Medium\", %s>0.2, \"Low\", %s>0, \"Very Low\", %s=0, \"None\"))\r\n"
                    + "";
            Object[][] data = new Object[][]
                { new Object[]
                            { "Header", "Complexity", "Type of File", "Change", "Upgrade Effort" },
                  new Object[]
                  { "A", "High", "css", "1" },
                  new Object[]
                  { "A", "Low", "txt", "0.4" },
                  new Object[]
                  { "C", "Moderate", "css", "0.4" },
                  new Object[]
                  { "D", "High", "txt", "0.7" },
                  new Object[]
                  { "A", "High", "css", "0.8" },
                  new Object[]
                  { "B", "Low", "css", "0.2" },
                  new Object[]
                  { "G", "Low", "css", "0.1" },
                  new Object[]
                  { "G", "High", "properties", "0.4" },
                  new Object[]
                  { "G", "High", "css", "1" },
                  new Object[]
                  { "G", "High", "css", "0.2" },
                  new Object[]
                  { "G", "Low", "jsp", "0.8" },
                  new Object[]
                  { "H", "Low", "jsp", "0.6" },
                  new Object[]
                  { "H", "Low", "html", "0.4" } };
            for (int r = 0; r < data.length; r++) {
                row = dataSheet.createRow(r);
                Object[] rowData = data[r];
                for (int c = 0; c < rowData.length; c++) {
                    cell = row.createCell(c);
                    if (rowData[c] instanceof String) {
                        cell.setCellValue((String) rowData[c]);
                    } else if (rowData[c] instanceof Number) {
                        cell.setCellValue(((Number) rowData[c]).doubleValue());
                    }
                }
                if (rowData.length < 5) {
                    cell = row.createCell(4);
                    String fileTypeCol = "C" + (r + 1);
                    String changeCol = "D" + (r + 1);
                    String formula = String.format(strFormula, fileTypeCol, changeCol, changeCol,
                            changeCol, changeCol, changeCol, changeCol, changeCol, changeCol,
                            changeCol, changeCol);
                    System.out.println("Formula ====== " + formula);
                    cell.setCellFormula(formula);
                }
            }

            XSSFFormulaEvaluator.evaluateAllFormulaCells(workbook);

            workbook.write(fileout);
            fileout.close();
            Desktop.getDesktop().open(new File("ItemFilter.xlsx"));

        }

    }
}

收到的结果：

Answer 1

Excel 函数

IFS

是在 2007 年发布 Office Open XML 文件系统后引入的。因此，并非所有电子表格应用程序都支持此函数。为了标记这一点，此类函数在文件存储中以

_xlfn.

为前缀。

由于 Apache POI 直接写入文件存储，因此必须使用

Cell.setCellFormula

设置该前缀。错的是

setCellFormula("...IFS(...")

。正确的是

setCellFormula("..._xlfn.IFS(...")

。

此外，您的代码应该为数字而不是字符串设置数值。错误：

...new Object[] { "A", "High", "css", "1" },...

。正确

...new Object[] { "A", "High", "css", 1 },...

。

使用您的代码示例的完整示例：

import java.awt.Desktop;
import java.io.File;
import java.io.FileOutputStream;

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class CreateExcelFormulaIFS {

 public static void main(String[] args) throws Exception {

  try (Workbook workbook = new XSSFWorkbook();
       FileOutputStream fileout = new FileOutputStream("./IFSFormula.xlsx")) {

   Sheet dataSheet = workbook.createSheet("Data");

   Row row;
   Cell cell;
    //String strFormula = "IFERROR(IFS(%s=\"css\", IFS(%s>0.5, \"High\", %s>0.3, \"Medium\", %s>0.2, \"Low\", %s>0, \"Very Low\", %s=0, \"None\")),IFS(%s>0.5, \"High\", %s>0.3, \"Medium\", %s>0.2, \"Low\", %s>0, \"Very Low\", %s=0, \"None\"))\r\n"
    //        + "";
   String strFormula = "IFERROR(_xlfn.IFS(%s=\"css\", _xlfn.IFS(%s>0.5, \"High\", %s>0.3, \"Medium\", %s>0.2, \"Low\", %s>0, \"Very Low\", %s=0, \"None\")),_xlfn.IFS(%s>0.5, \"High\", %s>0.3, \"Medium\", %s>0.2, \"Low\", %s>0, \"Very Low\", %s=0, \"None\"))";
   Object[][] data = new Object[][] {
    new Object[] { "Header", "Complexity", "Type of File", "Change", "Upgrade Effort" },
    new Object[] { "A", "High", "css", 1 },
    new Object[] { "A", "Low", "txt", 0.4 },
    new Object[] { "C", "Moderate", "css", 0.4 },
    new Object[] { "D", "High", "txt", 0.7 },
    new Object[] { "A", "High", "css", 0.8 },
    new Object[] { "B", "Low", "css", 0.2 },
    new Object[] { "G", "Low", "css", 0.1 },
    new Object[] { "G", "High", "properties", 0.4 },
    new Object[] { "G", "High", "css", 1 },
    new Object[] { "G", "High", "css", 0.2 },
    new Object[] { "G", "Low", "jsp", 0.8 },
    new Object[] { "H", "Low", "jsp", 0.6 },
    new Object[] { "H", "Low", "html", 0.4 }
   };
   for (int r = 0; r < data.length; r++) {
    row = dataSheet.createRow(r);
    Object[] rowData = data[r];
    for (int c = 0; c < rowData.length; c++) {
     cell = row.createCell(c);
     if (rowData[c] instanceof String) {
      cell.setCellValue((String) rowData[c]);
     } else if (rowData[c] instanceof Number) {
      cell.setCellValue(((Number) rowData[c]).doubleValue());
     }
    }
    if (rowData.length < 5) {
     cell = row.createCell(4);
     String fileTypeCol = "C" + (r + 1);
     String changeCol = "D" + (r + 1);
     String formula = String.format(strFormula, fileTypeCol, changeCol, changeCol,
                    changeCol, changeCol, changeCol, changeCol, changeCol, changeCol,
                    changeCol, changeCol);
     System.out.println("Formula ====== " + formula);
     cell.setCellFormula(formula);
    }
   }

   workbook.write(fileout);
   fileout.close();
   Desktop.getDesktop().open(new File("./IFSFormula.xlsx"));

  }
 }
}