嗨，我正在尝试使用嵌套公式来评估单元格值 apache POI 4.1.0。当我尝试使用普通公式时，它可以正常工作。 考虑以下代码：
FileInputStream inputExcelFile = new FileInputStream(new File(INPUT_FILE_NAME));
XSSFWorkbook workbook = new XSSFWorkbook(inputExcelFile);
XSSFSheet sheet = workbook.createSheet("Total");
Row row = sheet.createRow(0); Cell cell = row.createCell(0);
//setting formula in the cell
cell.setCellFormula("IF('Data Set'!B2=0,CONCATENATE(IF('Data Set'!J2="","UMS",'Data Set'!J2),"_",IF('Data Set'!K2<>"",'Data Set'!K2&"_",""),'Data Set'!H2),"");
Cell cellValue = formulaEvaluator.evaluateInCell(cell);
现在，如果执行cell.setCellFormula("CONCATENATE(F4,"/",G4)")或任何直接形式的代码，此代码可以正常工作，但是当使用嵌套公式（例如“ IF（....，CONCATENATE（IF ...））”）时，它将引发以下错误
Exception in thread "main" org.apache.poi.ss.formula.eval.NotImplementedException: Error evaluating cell Total!A1
at org.apache.poi.ss.formula.WorkbookEvaluator.addExceptionInfo(WorkbookEvaluator.java:344)
at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateAny(WorkbookEvaluator.java:285)
at org.apache.poi.ss.formula.WorkbookEvaluator.evaluate(WorkbookEvaluator.java:216)
at org.apache.poi.xssf.usermodel.BaseXSSFFormulaEvaluator.evaluateFormulaCellValue(BaseXSSFFormulaEvaluator.java:56)
at org.apache.poi.ss.formula.BaseFormulaEvaluator.evaluateInCell(BaseFormulaEvaluator.java:145)
at org.apache.poi.xssf.usermodel.XSSFFormulaEvaluator.evaluateInCell(XSSFFormulaEvaluator.java:85)
at org.apache.poi.xssf.usermodel.XSSFFormulaEvaluator.evaluateInCell(XSSFFormulaEvaluator.java:34)
at com.example.com.CollibraAutomationScript.evaluateFormula(CollibraAutomationScript.java:255)
at com.example.com.CollibraAutomationScript.main(CollibraAutomationScript.java:164)
Caused by: org.apache.poi.ss.formula.eval.NotImplementedException: Error evaluating cell 'Data Set'!B2
at org.apache.poi.ss.formula.WorkbookEvaluator.addExceptionInfo(WorkbookEvaluator.java:344)
at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateAny(WorkbookEvaluator.java:285)
at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateReference(WorkbookEvaluator.java:792)
at org.apache.poi.ss.formula.SheetRefEvaluator.getEvalForCell(SheetRefEvaluator.java:48)
at org.apache.poi.ss.formula.SheetRangeEvaluator.getEvalForCell(SheetRangeEvaluator.java:74)
at org.apache.poi.ss.formula.LazyRefEval.getInnerValueEval(LazyRefEval.java:39)
at org.apache.poi.ss.formula.eval.OperandResolver.chooseSingleElementFromRef(OperandResolver.java:217)
at org.apache.poi.ss.formula.eval.OperandResolver.getSingleValue(OperandResolver.java:67)
at org.apache.poi.ss.formula.eval.RelationalOperationEval.evaluate(RelationalOperationEval.java:66)
at org.apache.poi.ss.formula.functions.Fixed2ArgFunction.evaluate(Fixed2ArgFunction.java:33)
at org.apache.poi.ss.formula.OperationEvaluatorFactory.evaluate(OperationEvaluatorFactory.java:153)
at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateFormula(WorkbookEvaluator.java:541)
at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateAny(WorkbookEvaluator.java:275)
... 7 more
Caused by: org.apache.poi.ss.formula.eval.NotImplementedException: Error evaluating cell 'Data Set'!A2
at org.apache.poi.ss.formula.WorkbookEvaluator.addExceptionInfo(WorkbookEvaluator.java:344)
at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateAny(WorkbookEvaluator.java:285)
at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateReference(WorkbookEvaluator.java:792)
at org.apache.poi.ss.formula.SheetRefEvaluator.getEvalForCell(SheetRefEvaluator.java:48)
at org.apache.poi.ss.formula.SheetRangeEvaluator.getEvalForCell(SheetRangeEvaluator.java:74)
at org.apache.poi.ss.formula.LazyRefEval.getInnerValueEval(LazyRefEval.java:39)
at org.apache.poi.ss.formula.eval.OperandResolver.chooseSingleElementFromRef(OperandResolver.java:217)
at org.apache.poi.ss.formula.eval.OperandResolver.getSingleValue(OperandResolver.java:67)
at org.apache.poi.ss.formula.functions.Countif.evaluateCriteriaArg(Countif.java:498)
at org.apache.poi.ss.formula.functions.Countif.createCriteriaPredicate(Countif.java:470)
at org.apache.poi.ss.formula.functions.Countif.evaluate(Countif.java:442)
at org.apache.poi.ss.formula.functions.Fixed2ArgFunction.evaluate(Fixed2ArgFunction.java:33)
at org.apache.poi.ss.formula.OperationEvaluatorFactory.evaluate(OperationEvaluatorFactory.java:153)
at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateFormula(WorkbookEvaluator.java:541)
at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateAny(WorkbookEvaluator.java:275)
... 18 more
Caused by: org.apache.poi.ss.formula.eval.NotImplementedFunctionException: _xlfn.CONCAT
at org.apache.poi.ss.formula.UserDefinedFunction.evaluate(UserDefinedFunction.java:56)
at org.apache.poi.ss.formula.OperationEvaluatorFactory.evaluate(OperationEvaluatorFactory.java:155)
at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateFormula(WorkbookEvaluator.java:541)
at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateAny(WorkbookEvaluator.java:275)
... 31 more
所以apache poi不允许执行嵌套公式吗？因为当我将相同的公式放在excel工作表中时，它的评估正确。