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我有以下代码

public boolean processCell(boolean hasData, StringBuffer rowData, Cell cell)
 {
  switch (cell.getCellType())
  {
   case Cell.CELL_TYPE_FORMULA:
   {
    try
    {
     this.evaluator.clearAllCachedResultValues();
     switch (this.evaluator.evaluateFormulaCell(cell))
     {
      case XSSFCell.CELL_TYPE_NUMERIC:
      {
       if (DateUtil.isCellDateFormatted(cell))
       {
        logger.warn(cell.getCellFormula());

        rowData.append(dateFormat.format(cell.getDateCellValue()));
        hasData = true;
       }
       else
       {
        rowData.append(numberFormat.format(cell.getNumericCellValue()));
        hasData = true;
       }
       break;
      }
      case XSSFCell.CELL_TYPE_STRING:
      {
       String stringVal = cell.getStringCellValue().trim().replaceAll("\n", "");
       if (stringVal.trim().equalsIgnoreCase("Total MoU/active customer"))
       {
        logger.warn("Last -  KPI ::" + stringVal);
        this.finalRecord = true;
       }
       rowData.append(stringVal);
       hasData = true;
       break;
      }
      case XSSFCell.CELL_TYPE_BOOLEAN:
      {
       rowData.append(cell.getBooleanCellValue());
       hasData = true;
       break;
      }
      case XSSFCell.CELL_TYPE_ERROR:
      {
       int eval = cell.getErrorCellValue();
       if (eval == DIVIDE_BY_ZERO)
        rowData.append("0");
       hasData = true;
       break;
      }
      case XSSFCell.CELL_TYPE_BLANK:
      {
       rowData.append("");
       hasData = true;
       break;
      }
     }
    }
    catch (java.lang.IllegalArgumentException e)
    {

     logger.error("  Formula [ " + (cell.getRowIndex() + 1) + "," + (cell.getColumnIndex() + 1) + " ]  "
       + e.getMessage());
     rowData.append("CellError");
     this.STATUS = FAILURE;
     hasData = true;
     break;
    }
    catch (java.lang.IllegalStateException e)
    {

     logger.error("  Formula [ " + (cell.getRowIndex() + 1) + "," + (cell.getColumnIndex() + 1) + " ]  "
       + e.getMessage());
     rowData.append("CellError");
     this.STATUS = FAILURE;
     hasData = true;
     break;
    }
    catch (java.lang.RuntimeException e)
    {
     this.STATUS = FAILURE;
     logger.error("  Formula [ " + (cell.getRowIndex() + 1) + "," + (cell.getColumnIndex() + 1) + " ]  "
       + e.getMessage());
     rowData.append("MissingFileError");
     hasData = true;
     break;
    }
    break;
   }
   case XSSFCell.CELL_TYPE_BLANK:
   {
    rowData.append("");
    hasData = true;
    break;
   }
   case XSSFCell.CELL_TYPE_NUMERIC:
   {
    if (DateUtil.isCellDateFormatted(cell))
    {
     rowData.append(dateFormat.format(cell.getDateCellValue()));
     hasData = true;
    }
    else
    {
     rowData.append(numberFormat.format(cell.getNumericCellValue()));
     hasData = true;
    }
    break;
   }
    // Formula evaluation ends here
   case XSSFCell.CELL_TYPE_STRING:
   {
    String stringVal = cell.getStringCellValue().trim().replaceAll("\n", "");
    if (stringVal.trim().equalsIgnoreCase("Total MoU/active customer"))
    {
     logger.warn("Last -  KPI ::" + stringVal);
     this.finalRecord = true;
     ;
    }
    rowData.append(stringVal);
    hasData = true;
    break;
   }
   case XSSFCell.CELL_TYPE_ERROR:
   {
    int eval = cell.getErrorCellValue();
    if (eval == DIVIDE_BY_ZERO)
     rowData.append("0");
    hasData = true;
    break;
   }
   case XSSFCell.CELL_TYPE_BOOLEAN:
   {
    rowData.append(cell.getBooleanCellValue());
    hasData = true;
    break;
   }
  }
  rowData.append(FIELD_SEPARATOR);
  return hasData;
 }

当我运行程序时。在日期列中，我有一系列日期。没有公式的最后一个日期是 31/12/2009 它的单元格引用 oj 在 excel 表中的 oj+1 我有 1/1/2010 但在 excel 表中我得到了 29/04/2009 我已经在这个单元格上打印了公式并找到出 poi 3.6 对此有错误的单元格引用。而不是 oj+1 它给 NE+1

请帮我解决问题

4

2 回答 2

3

由于您的示例不完整，我无法重现您的结果。这是产生预期结果的sscce：

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellValue;
import org.apache.poi.ss.usermodel.DateUtil;
import org.apache.poi.ss.usermodel.FormulaEvaluator;
import org.apache.poi.ss.usermodel.Row;

public class POIExcelReader {

    public static void main(String[] args) throws IOException {
        InputStream myxls = new FileInputStream("test.xls");
        HSSFWorkbook book = new HSSFWorkbook(myxls);
        FormulaEvaluator eval =
            book.getCreationHelper().createFormulaEvaluator();
        HSSFSheet sheet = book.getSheetAt(0);
        for (Row row : sheet) {
            for (Cell cell : row) {
                printCell(cell, eval);
                System.out.print("; ");
            }
            System.out.println();
        }
        myxls.close();
    }

    private static void printCell(Cell cell, FormulaEvaluator eval) {
        switch (cell.getCellType()) {
            case Cell.CELL_TYPE_BLANK:
                System.out.print("EMPTY");
                break;
            case Cell.CELL_TYPE_STRING:
                System.out.print(cell.getStringCellValue());
                break;
            case Cell.CELL_TYPE_NUMERIC:
                if (DateUtil.isCellDateFormatted(cell)) {
                    System.out.print(cell.getDateCellValue());
                } else {
                    System.out.print(cell.getNumericCellValue());
                }
                break;
            case Cell.CELL_TYPE_BOOLEAN:
                System.out.print(cell.getBooleanCellValue());
                break;
            case Cell.CELL_TYPE_FORMULA:
                System.out.print(cell.getCellFormula());
                CellValue cellValue = eval.evaluate(cell);
                switch (cellValue.getCellType()) {
                    case Cell.CELL_TYPE_NUMERIC:
                        double v = cellValue.getNumberValue();
                        if (DateUtil.isCellDateFormatted(cell)) {
                            System.out.print(" = "
                                + DateUtil.getJavaDate(v, true));
                        } else {
                            System.out.print(" = " + v);
                        }
                        break;
                }
                break;
            default:
                System.out.print("DEFAULT");
        }
    }
}

2010 年 1 月 10 日星期日 00:00:00 EST；1+1 = 2.0；123.1；字符串1；真的;
A1+1 = 2010 年 1 月 11 日星期一 00:00:00 EST；2+2 = 4.0；123.2；字符串2；错误的;
A2+1 = 2010 年 1 月 12 日星期二 00:00:00 EST；3+3 = 6.0；123.3；字符串3；真的;

附录：使用 Apache POI 3.8b3 验证的结果。

于 2010-01-16T23:18:36.963 回答
1

我有一个类似的问题，我正在阅读的工作簿从硬编码值切换到相互依赖的评估日期值，例如 E7+7 和下一个单元格 F7+7 。一下子就涨了5年。。。

在读取如下值之前，我通过在每个单元格上使用 evalInCell 来修复它：

if (cell.getCellType() == Cell.CELL_TYPE_FORMULA)
{
     cell = eval.evaluateInCell(cell);
}

希望这可以帮助！

于 2013-01-22T00:59:16.597 回答