easyexcel 自定义合并单元格 支持传入行号和开始结束列号进行合并

是的，EasyExcel可以支持自定义合并单元格，可以传入需要合并的行号和开始结束列号进行合并。下面是一个示例代码：

// 定义需要合并的行和列
int firstRow = 1;
int lastRow = 3;
int firstCol = 2;
int lastCol = 4;

// 创建合并单元格的样式
CellStyle cellStyle = workbook.createCellStyle();
cellStyle.setAlignment(HorizontalAlignment.CENTER);
cellStyle.setVerticalAlignment(VerticalAlignment.CENTER);
cellStyle.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
cellStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);

// 合并单元格
Sheet sheet = workbook.getSheet(sheetName);
CellRangeAddress region = new CellRangeAddress(firstRow, lastRow, firstCol, lastCol);
sheet.addMergedRegion(region);

// 设置合并单元格的样式
RegionUtil.setBorderTop(BorderStyle.THIN, region, sheet);
RegionUtil.setBorderBottom(BorderStyle.THIN, region, sheet);
RegionUtil.setBorderLeft(BorderStyle.THIN, region, sheet);
RegionUtil.setBorderRight(BorderStyle.THIN, region, sheet);
for (int i = region.getFirstRow(); i <= region.getLastRow(); i++) {
    Row row = sheet.getRow(i);
    if (row == null) {
        row = sheet.createRow(i);
    }
    for (int j = region.getFirstColumn(); j <= region.getLastColumn(); j++) {
        Cell cell = row.getCell(j);
        if (cell == null) {
            cell = row.createCell(j);
        }
        cell.setCellStyle(cellStyle);
    }
}

以上示例代码中，我们定义了需要合并的行号和开始结束列号，创建了合并单元格的样式，最后进行了单元格合并和样式设置。