如何使用HSSF（Apache POI）在现有Excel中的两行之间插入行

Question

不知何故，我设法在现有excel文件中的两行之间创建新行。问题是，一些格式化不包括行的移位。

其中一个是，在转换过程中隐藏的行不是相对的。我的意思是（例如），隐藏了20到30行，但是当创建新行时，仍然存在格式化。隐藏的行也必须在插入/创建新行期间移动，它应该是21到31.

另一件事是，工作表中的另一个对象不在单元格中。在创建新行之后，文本框不会移动。它就像这些物体的位置是固定的。但我希望它移动，就像我在excel中插入新行或粘贴行一样。如果有插入新行的功能，请告诉我。

这就是我现在所拥有的，只是我代码中的一个片段。

HSSFWorkbook wb = new HSSFWorkbook(template); //template is the source of file
HSSFSheet sheet = wb.getSheet("SAMPLE");
HSSFRow newRow;
HSSFCell cellData;

int createNewRowAt = 9; //Add the new row between row 9 and 10

sheet.shiftRows(createNewRowAt, sheet.getLastRowNum(), 1, true, false);
newRow = sheet.createRow(createNewRowAt);
newRow = sheet.getRow(createNewRowAt);

如果可以复制和粘贴行，那将是很大的帮助。但是我已经在这里问过它并且找不到解决方案。所以我决定创建一个行作为临时解决方案。我已经完成了它，但有这样的问题。

任何帮助将不胜感激。谢谢！

Answer 1

帮助函数复制从here

无耻改编的行

import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.util.CellRangeAddress;

import java.io.FileInputStream;
import java.io.FileOutputStream;

public class RowCopy {

    public static void main(String[] args) throws Exception{
        HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream("c:/input.xls"));
        HSSFSheet sheet = workbook.getSheet("Sheet1");
        copyRow(workbook, sheet, 0, 1);
        FileOutputStream out = new FileOutputStream("c:/output.xls");
        workbook.write(out);
        out.close();
    }

    private static void copyRow(HSSFWorkbook workbook, HSSFSheet worksheet, int sourceRowNum, int destinationRowNum) {
        // Get the source / new row
        HSSFRow newRow = worksheet.getRow(destinationRowNum);
        HSSFRow sourceRow = worksheet.getRow(sourceRowNum);

        // If the row exist in destination, push down all rows by 1 else create a new row
        if (newRow != null) {
            worksheet.shiftRows(destinationRowNum, worksheet.getLastRowNum(), 1);
        } else {
            newRow = worksheet.createRow(destinationRowNum);
        }

        // Loop through source columns to add to new row
        for (int i = 0; i < sourceRow.getLastCellNum(); i++) {
            // Grab a copy of the old/new cell
            HSSFCell oldCell = sourceRow.getCell(i);
            HSSFCell newCell = newRow.createCell(i);

            // If the old cell is null jump to next cell
            if (oldCell == null) {
                newCell = null;
                continue;
            }

            // Copy style from old cell and apply to new cell
            HSSFCellStyle newCellStyle = workbook.createCellStyle();
            newCellStyle.cloneStyleFrom(oldCell.getCellStyle());
            ;
            newCell.setCellStyle(newCellStyle);

            // If there is a cell comment, copy
            if (oldCell.getCellComment() != null) {
                newCell.setCellComment(oldCell.getCellComment());
            }

            // If there is a cell hyperlink, copy
            if (oldCell.getHyperlink() != null) {
                newCell.setHyperlink(oldCell.getHyperlink());
            }

            // Set the cell data type
            newCell.setCellType(oldCell.getCellType());

            // Set the cell data value
            switch (oldCell.getCellType()) {
                case Cell.CELL_TYPE_BLANK:
                    newCell.setCellValue(oldCell.getStringCellValue());
                    break;
                case Cell.CELL_TYPE_BOOLEAN:
                    newCell.setCellValue(oldCell.getBooleanCellValue());
                    break;
                case Cell.CELL_TYPE_ERROR:
                    newCell.setCellErrorValue(oldCell.getErrorCellValue());
                    break;
                case Cell.CELL_TYPE_FORMULA:
                    newCell.setCellFormula(oldCell.getCellFormula());
                    break;
                case Cell.CELL_TYPE_NUMERIC:
                    newCell.setCellValue(oldCell.getNumericCellValue());
                    break;
                case Cell.CELL_TYPE_STRING:
                    newCell.setCellValue(oldCell.getRichStringCellValue());
                    break;
            }
        }

        // If there are are any merged regions in the source row, copy to new row
        for (int i = 0; i < worksheet.getNumMergedRegions(); i++) {
            CellRangeAddress cellRangeAddress = worksheet.getMergedRegion(i);
            if (cellRangeAddress.getFirstRow() == sourceRow.getRowNum()) {
                CellRangeAddress newCellRangeAddress = new CellRangeAddress(newRow.getRowNum(),
                        (newRow.getRowNum() +
                                (cellRangeAddress.getLastRow() - cellRangeAddress.getFirstRow()
                                        )),
                        cellRangeAddress.getFirstColumn(),
                        cellRangeAddress.getLastColumn());
                worksheet.addMergedRegion(newCellRangeAddress);
            }
        }
    }
}

Answer 2

引用Qwerty's answer，您可以通过重复使用cellStyle来避免夸大XL尺寸。 当类型为CELL_TYPE_BLANK时，getStringCellValue会返回""而不是null。

private static void copyRow(Sheet worksheet, int sourceRowNum, int destinationRowNum) {
  // Get the source / new row
  Row newRow = worksheet.getRow(destinationRowNum);
  Row sourceRow = worksheet.getRow(sourceRowNum);

  // If the row exist in destination, push down all rows by 1 else create a new row
  if (newRow != null) {
    worksheet.shiftRows(destinationRowNum, worksheet.getLastRowNum(), 1);
  } else {
    newRow = worksheet.createRow(destinationRowNum);
  }

  // Loop through source columns to add to new row
  for (int i = 0; i < sourceRow.getLastCellNum(); i++) {
    // Grab a copy of the old/new cell
    Cell oldCell = sourceRow.getCell(i);
    Cell newCell = newRow.createCell(i);

    // If the old cell is null jump to next cell
    if (oldCell == null) {
      newCell = null;
      continue;
    }

    // Use old cell style
    newCell.setCellStyle(oldCell.getCellStyle());

    // If there is a cell comment, copy
    if (newCell.getCellComment() != null) {
      newCell.setCellComment(oldCell.getCellComment());
    }

    // If there is a cell hyperlink, copy
    if (oldCell.getHyperlink() != null) {
      newCell.setHyperlink(oldCell.getHyperlink());
    }

    // Set the cell data type
    newCell.setCellType(oldCell.getCellType());

    // Set the cell data value
    switch (oldCell.getCellType()) {
    case Cell.CELL_TYPE_BLANK:
      break;
    case Cell.CELL_TYPE_BOOLEAN:
      newCell.setCellValue(oldCell.getBooleanCellValue());
      break;
    case Cell.CELL_TYPE_ERROR:
      newCell.setCellErrorValue(oldCell.getErrorCellValue());
      break;
    case Cell.CELL_TYPE_FORMULA:
      newCell.setCellFormula(oldCell.getCellFormula());
      break;
    case Cell.CELL_TYPE_NUMERIC:
      newCell.setCellValue(oldCell.getNumericCellValue());
      break;
    case Cell.CELL_TYPE_STRING:
      newCell.setCellValue(oldCell.getRichStringCellValue());
      break;
    }
  }
}

Answer 3

对于希望在现有Excel中使用XSSF（Apache POI）在两行之间插入行的人，已经在XSSFSheet中实现了“copyRows”方法。

import org.apache.poi.ss.usermodel.CellCopyPolicy;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import java.io.FileInputStream;
import java.io.FileOutputStream;

public class App2 throws Exception{
    public static void main(String[] args){
        XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream("input.xlsx"));
        XSSFSheet sheet = workbook.getSheet("Sheet1");
        sheet.copyRows(0, 2, 3, new CellCopyPolicy());
        FileOutputStream out = new FileOutputStream("output.xlsx");
        workbook.write(out);
        out.close();
    }
}

Answer 4

引用Qwerty's answer，如果destRow不为null，则sheet.shiftRows（）将更改destRow对下一行的引用;所以我们应该总是创建一个新行：

if (destRow != null) {
  sheet.shiftRows(destination, sheet.getLastRowNum(), 1);
}
destRow = sheet.createRow(destination);

Answer 5

我在以下实现中合并了一些其他答案和注释，并使用Apache POI v3.9进行了测试。

我只有一个rownum参数，因为我向下移动目标行并将其复制到新的空行中。公式按预期处理，不会逐字复制，但有一个例外：对未复制 复制行的单元格的引用不会更新;解决方法是使用this post建议的使用INDIRECT()计算的引用替换这些显式引用（如果有）。

protected void copyRow(Sheet worksheet, int rowNum) {
    Row sourceRow = worksheet.getRow(rowNum);

    //Save the text of any formula before they are altered by row shifting
    String[] formulasArray = new String[sourceRow.getLastCellNum()];
    for (int i = 0; i < sourceRow.getLastCellNum(); i++) {
        if (sourceRow.getCell(i) != null && sourceRow.getCell(i).getCellType() == Cell.CELL_TYPE_FORMULA) 
            formulasArray[i] = sourceRow.getCell(i).getCellFormula();
    }

    worksheet.shiftRows(rowNum, worksheet.getLastRowNum(), 1);
    Row newRow = sourceRow;  //Now sourceRow is the empty line, so let's rename it
    sourceRow = worksheet.getRow(rowNum + 1);  //Now the source row is at rowNum+1

    // Loop through source columns to add to new row
    for (int i = 0; i < sourceRow.getLastCellNum(); i++) {
        // Grab a copy of the old/new cell
        Cell oldCell = sourceRow.getCell(i);
        Cell newCell;

        // If the old cell is null jump to next cell
        if (oldCell == null) {
            continue;
        } else {
            newCell = newRow.createCell(i);
        }

        // Copy style from old cell and apply to new cell
        CellStyle newCellStyle = worksheet.getWorkbook().createCellStyle();
        newCellStyle.cloneStyleFrom(oldCell.getCellStyle());
        newCell.setCellStyle(newCellStyle);

        // If there is a cell comment, copy
        if (oldCell.getCellComment() != null) {
            newCell.setCellComment(oldCell.getCellComment());
        }

        // If there is a cell hyperlink, copy
        if (oldCell.getHyperlink() != null) {
            newCell.setHyperlink(oldCell.getHyperlink());
        }

        // Set the cell data type
        newCell.setCellType(oldCell.getCellType());

        // Set the cell data value
        switch (oldCell.getCellType()) {
            case Cell.CELL_TYPE_BLANK:
                break;
            case Cell.CELL_TYPE_BOOLEAN:
                newCell.setCellValue(oldCell.getBooleanCellValue());
                break;
            case Cell.CELL_TYPE_ERROR:
                newCell.setCellErrorValue(oldCell.getErrorCellValue());
                break;
            case Cell.CELL_TYPE_FORMULA:
                newCell.setCellFormula(formulasArray[i]);
                break;
            case Cell.CELL_TYPE_NUMERIC:
                newCell.setCellValue(oldCell.getNumericCellValue());
                break;
            case Cell.CELL_TYPE_STRING:
                newCell.setCellValue(oldCell.getRichStringCellValue());
                break;
            default:   
                break; 
        }
    }

    // If there are any merged regions in the source row, copy to new row
    for (int i = 0; i < worksheet.getNumMergedRegions(); i++) {
        CellRangeAddress cellRangeAddress = worksheet.getMergedRegion(i);
        if (cellRangeAddress.getFirstRow() == sourceRow.getRowNum()) {
            CellRangeAddress newCellRangeAddress = new CellRangeAddress(newRow.getRowNum(),
                    (newRow.getRowNum() +
                            (cellRangeAddress.getLastRow() - cellRangeAddress.getFirstRow()
                                    )),
                    cellRangeAddress.getFirstColumn(),
                    cellRangeAddress.getLastColumn());
            worksheet.addMergedRegion(newCellRangeAddress);
        }
    }
}

我在生产代码中使用此实现。

Answer 6

对于在新行中“更新”的公式，由于所有复制都发生在移位之后，旧行（现在从新行开始的一个索引）已经移动了其公式，因此将其复制到新行row将使新行引用旧行单元格。一个解决方案是在移位之前解析公式，然后应用它们（一个简单的String数组就可以完成这项工作。我相信你可以用几行来编写代码）。

在功能开始时：

ArrayList<String> fArray = new ArrayList<String>();
Row origRow = sheet.getRow(sourceRow);
for (int i = 0; i < origRow.getLastCellNum(); i++) {
    if (origRow.getCell(i) != null && origRow.getCell(i).getCellType() == Cell.CELL_TYPE_FORMULA) 
        fArray.add(origRow.getCell(i).getCellFormula());
    else fArray.add(null);
}

然后将公式应用于单元格时：

newCell.setCellFormula(fArray.get(i));

Answer 7

我最近遇到了同样的问题。我不得不在一个隐藏行的文档中插入新行，并面临同样的问题。经过一些搜索和apache poi列表中的一些电子邮件后，当文档隐藏行时，它似乎是shiftrows（）中的一个错误。

Answer 8

我在Kotlin这样实现了这个：

fun Sheet.buildRow ( rowNum:Int ) : Row {
    val templateRow = this.getRow( rowNum )
    this.shiftRows( rowNum+1, sheet.lastRowNum, 1 )
    val newRow = this.createRow( rowNum+1 )
    templateRow.cellIterator().forEach {
        newRow.createCell( it.columnIndex ).cellStyle = it.cellStyle
    }
    return templateRow
}

它不会复制单元格值，只复制格式。 也应该适用于Java。