使用POI在Excel中删除一行
我想省略.xlsx文件中存在具有特定值的特定单元格的行（我在代码中用TODO标记了它）。 但是我得到org.apache.xmlbeans.impl.values.XmlValueDisconnectedExceptionexception。 我不知道它说什么，问题在哪里？
这个例外：
`Exception in thread "main" org.apache.xmlbeans.impl.values.XmlValueDisconnectedException at org.apache.xmlbeans.impl.values.XmlObjectBase.check_orphaned(XmlObjectBase.java:1258) at org.openxmlformats.schemas.spreadsheetml.x2006.main.impl.CTCellImpl.getF(Unknown Source) at org.apache.poi.xssf.usermodel.XSSFCell.isFormulaCell(XSSFCell.java:543) at org.apache.poi.xssf.usermodel.XSSFCell.getCellType(XSSFCell.java:562) at org.apache.poi.xssf.usermodel.XSSFRow.getCell(XSSFRow.java:210) at org.apache.poi.xssf.usermodel.XSSFRow.getCell(XSSFRow.java:37) at migration.IndikatorResultNormalization.roundOff(IndikatorResultNormalization.java:143) at migration.IndikatorResultNormalization.lambda$0(IndikatorResultNormalization.java:48) at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) at java.util.Iterator.forEachRemaining(Iterator.java:116) at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151) at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418) at migration.IndikatorResultNormalization.readPaths(IndikatorResultNormalization.java:45) at migration.IndikatorResultNormalization.main(IndikatorResultNormalization.java:34)
`
这里是代码：
public void cleanSheet(final Path filePath) throws IOException { String newOutName = filePath.getFileName().toString(); String sub = newOutName.substring(newOutName.indexOf("_"), newOutName.length() - 5); newOutName.replace("RESULT", "cmdg").replace(sub, ""); newOutName.replace("RESULT", "cmdg"); String outPathStr = filePath.resolveSibling("out") .resolve(filePath.getFileName()) .toString() .replace("RESULT_", "") .replaceAll("_[^_]*$", "_cmdg.xlsx"); try (XSSFWorkbook workbook = new XSSFWorkbook(filePath.toString()); FileOutputStream outFile = new FileOutputStream(outPathStr);) { CellStyle cellStyle = workbook.createCellStyle(); DataFormat poiFormat = workbook.createDataFormat(); String excelFormatPattern = "0.00000"; cellStyle.setDataFormat(poiFormat.getFormat(excelFormatPattern)); XSSFSheet spreadsheet = workbook.getSheetAt(0); int lastRowNum = spreadsheet.getLastRowNum(); workbook.setSheetName(0, "Tabelle1"); for (Row row : spreadsheet) { for (Cell cell : row) { cell = row.getCell(cell.getColumnIndex(), Row.RETURN_BLANK_AS_NULL); if (cell.getColumnIndex() == 2) { if (cell.getCellType() == Cell.CELL_TYPE_STRING && cell.getStringCellValue().equalsIgnoreCase("Id")) { cell.setCellValue("sort"); } else if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC) { String textConcat = String.format("%.0f", row.getCell(2).getNumericCellValue()) + " " + row.getCell(3).getStringCellValue(); cell.setCellValue(textConcat); cell.setCellType(Cell.CELL_TYPE_STRING); sortSheet(row, spreadsheet, 2, 1); } } else if (cell.getColumnIndex() >= 6 && cell.getColumnIndex() < row.getLastCellNum()) { if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC) { Double newValue = Double.valueOf((Math.round(cell.getNumericCellValue() * 100000d) / 100000d)); cell.setCellValue(newValue); cell.setCellStyle(cellStyle); } } // TODO remove 0 values und shift up else if (cell.getColumnIndex() == 5 && cell.getRowIndex() != 0) { if (cell.getNumericCellValue() == 0.0) { spreadsheet.shiftRows(cell.getRowIndex() + 1, lastRowNum, -1); lastRowNum--; } } } // end for Cell } // end for Row workbook.write(outFile); } }
POI在遍历行时可能会感到困惑，同时删除/移动它们。
请尝试记住第一遍中的受影响的行，并在遍历所有行时完成后面的转换。