如何使用HSSF（Apache POI）在现有Excel中的两行之间插入一行

java excel apache-poi poi-hssf

2022-08-31 16:54:16

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，一些格式设置不包括行的移动。

其中之一，是隐藏的行在轮班期间没有相对的行。我的意思是（例如），从20到30的行是隐藏的，但是当创建新行时，格式仍然存在。隐藏行还必须在插入/创建新行期间移动，它应该是21到31。

另一件事是，工作表中不在单元格中的另一个对象。像文本框一样，在创建新行后不会移动。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。

这就是我现在拥有的，只是我的代码中的一个片段。

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了，找不到解决方案。因此，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！

答案 1

帮助程序函数，可从此处无耻地复制行

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);
            }
        }
    }
}

答案 2

对于那些希望使用XSSF（Apache POI）在现有excel中的两行之间插入行的人来说，XSSFSheet中已经实现了一个方法“copyRows”。

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();
    }
}