Question

我的方案是从＆＃34; Status＆＃34;获取文字。列和基于文本比较，我想突出显示那个特定的单元格。下面是我的代码 -

   private static void colorSheet(String xlsxFileAddress)
    {
        try
        {
            FileInputStream file = new FileInputStream(new File(xlsxFileAddress));

            //Create Workbook instance holding reference to .xlsx file
            XSSFWorkbook workbook = new XSSFWorkbook(file);

            //Get first/desired sheet from the workbook
            XSSFSheet sheet = workbook.getSheetAt(0);
            XSSFFormulaEvaluator evaluator = workbook.getCreationHelper().createFormulaEvaluator();
            XSSFSheetConditionalFormatting sheetCF = sheet.getSheetConditionalFormatting();
            //Iterate through each rows one by one
            Iterator<Row> rowIterator = sheet.iterator();
            while (rowIterator.hasNext())
            {
                Row row = rowIterator.next();
                //For each row, iterate through all the columns
                Iterator<Cell> cellIterator = row.cellIterator();

                while (cellIterator.hasNext())
                {
                    Cell cell = cellIterator.next();
                    //Check the cell type after eveluating formulae
                    //If it is formula cell, it will be evaluated otherwise no change will happen
                    switch (evaluator.evaluateInCell(cell).getCellType())
                    {
                        case Cell.CELL_TYPE_NUMERIC:
                            System.out.print(cell.getNumericCellValue() + "tt");
                            break;
                        case Cell.CELL_TYPE_STRING:
                        {
                            System.out.print(cell.getStringCellValue() + "tt");

                            ConditionalFormattingRule rule2 = sheetCF.createConditionalFormattingRule(ComparisonOperator.EQUAL,"Extra Rows in new table");

                            org.apache.poi.ss.usermodel.PatternFormatting fill2 = rule2.createPatternFormatting();

                            fill2.setFillBackgroundColor(IndexedColors.BLUE.index);
                            fill2.setFillPattern(PatternFormatting.SOLID_FOREGROUND);
                            CellRangeAddress[] regions = {
                                    CellRangeAddress.valueOf("A2:A7")
                            };

                            sheetCF.addConditionalFormatting(regions, rule2);
                            break;

                        }
                    }
                }
                System.out.println("");
            }
            file.close();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }

我希望无论哪个单元格都有文字＆＃34;新表中的额外行＆＃34;应该以蓝色突出显示，但我的代码不起作用。请提示需要。

Answer 1

好的，问题是您正在读取文件并更改其在进程内存中的内容，但您永远不会将更改写回文件。

尝试更换：

file.close();

使用：

file.close();
FileOutputStream writeFile = new FileOutputStream(new File(xlsxFileAddress));
workbook.write(writeFile);
writeFile.close();

Answer 2

可能是因为

ConditionalFormattingRule“等于”仅在以ComparisonOperator.EQUAL, "\"" + "Extra Rows in new table" + "\""而不是(ComparisonOperator.EQUAL,"Extra Rows in new table");
在file.close()之后添加此内容以写回文件。

FileOutputStream writeFile = new FileOutputStream(new
File(xlsxFileAddress));
workbook.write(writeFile);
writeFile.close();

无法在java中突出显示excel中的文本

2 个答案: