easypoi导出excel带下拉框选项，直接上代码

这里是easypoi的导出工具类，bean（Food）和查询list(arrayList)我直接省略了

Workbook workbook = ExcelExportUtil.exportExcel(exportParams,Food.class,arrayList);
//这里是自己加的 带下拉框的代码
ExcelSelectListUtil.selectList(workbook, 4, 4, new String[]{"斤","两","个","袋","份"});
ExcelSelectListUtil.selectList(workbook, 0, 0, new String[]{"蔬菜","水果","主食","熟食","调料"});
downLoadExcel("菜品管理",workbook, request, response);

好，让咱们直接来我写的excel下拉框代码，我简洁了 单元格选项，因为格式固定了，所以从第二行写死开始的直到65535行

public final class ExcelSelectListUtil {
	
	/**
	 * firstRow 開始行號 根据此项目，默认为2(下标0开始)
	 * lastRow  根据此项目，默认为最大65535
	 * firstCol 区域中第一个单元格的列号 (下标0开始)
	 * lastCol 区域中最后一个单元格的列号
	 * strings 下拉内容
	 * */
	public static void selectList(Workbook workbook,int firstCol,int lastCol,String[] strings ){
		
		
		Sheet sheet = workbook.getSheetAt(0);
		//  生成下拉列表  
		//  只对(x，x)单元格有效  
		CellRangeAddressList cellRangeAddressList = new CellRangeAddressList(2, 65535, firstCol, lastCol);
		//  生成下拉框内容  
		DVConstraint dvConstraint = DVConstraint.createExplicitListConstraint(strings);
		HSSFDataValidation dataValidation = new HSSFDataValidation(cellRangeAddressList, dvConstraint);
		//  对sheet页生效  
		sheet.addValidationData(dataValidation);
		
	}

}

来看效果

下载excel的代码
// 下载excel

	public static void downLoadExcel(String fileName, Workbook workbook, HttpServletRequest request,
		HttpServletResponse response) throws IOException {
		
	OutputStream output = null;
	BufferedOutputStream bufferedOutPut = null;
	try {
		// 重置响应对象
		response.reset();
		// 当前日期，用于导出文件名称
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
		String dateStr = fileName + "-" + sdf.format(new Date());

		
		String UserAgent = request.getHeader("USER-AGENT").toLowerCase();
		// 指定下载的文件名--设置响应头
		if (UserAgent.indexOf("firefox") >= 0) {
			
			response.setHeader("content-disposition", "attachment;filename=\"" + new String(dateStr.getBytes("UTF-8"), "iso-8859-1") +".xls\"");

		}else {
			response.setHeader("Content-Disposition",
					"attachment;filename=" + URLEncoder.encode(dateStr, "UTF-8")+".xls");
		}

		
		response.setContentType("application/vnd.ms-excel;charset=UTF-8");
		// 编码
		response.setCharacterEncoding("UTF-8");
		output = response.getOutputStream();
		bufferedOutPut = new BufferedOutputStream(output);

		workbook.write(bufferedOutPut);
		bufferedOutPut.flush();
	} catch (Exception e) {
		
	} finally {
		if (bufferedOutPut != null) {
			bufferedOutPut.close();
		}
		if (output != null) {
			output.close();
		}
	}
}