java导出excel 浏览器直接下载或者或以文件形式导出

看代码吧~

/**
 * excel表格直接下载
 */
public static void exportExcelByDownload(HSSFWorkbook wb,HttpServletResponse httpServletResponse,String fileName) throws Exception {
    //响应类型为application/octet- stream情况下使用了这个头信息的话，那就意味着不想直接显示内容
    httpServletResponse.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
    //attachment为以附件方式下载
    httpServletResponse.setHeader("Content-Disposition","attachment;filename=" + URLEncoder.encode(
            fileName + ".xls",
            "utf-8"));
    /**
     * 代码里面使用Content-Disposition来确保浏览器弹出下载对话框的时候。
     * response.addHeader("Content-Disposition","attachment");一定要确保没有做过关于禁止浏览器缓存的操作
     */
    httpServletResponse.setHeader("Cache-Control", "No-cache");
    httpServletResponse.flushBuffer();
    wb.write(httpServletResponse.getOutputStream());
    wb.close();
}
/**
 * excel以文件的形式导出
 * @throws Exception
 */
public static void exportExcelByFile(HSSFWorkbook wb,String fileName,String path) throws Exception{
    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    wb.write(stream);
    FileOutputStream outputStream = new FileOutputStream(path + fileName);
    outputStream.write(stream.toByteArray());
    stream.close();
    outputStream.close();
}

java查询数据导出excel并返回给浏览器下载

效果图：

1.点击导出表按钮

2.接着就会出现下图

3.点击上图中的确定按钮再接着就会出现下图

4.点击上图中的保存按钮接着就会出现下图，浏览器下载完成后的提示

5.打开下载好的文件如下图

好了，废话不多少，上代码

jsp前端代码

<div style="height:30px;">
	<a>时间：</a>
        <input id="startDateConsume" type="text" class="easyui-datebox"> <a>-</a>
        <input id="endDateConsume" type="text" class="easyui-datebox">
        <a>消费类型：</a>
       <select id="consumesType" name="">
	<option value="0" selected="selected">所有</option>
	<option value="1">报名费</option>
	<option value="2">酒水零食类</option>
	</select>
        <a>支付状态：</a>
       <select id="conPaymentStatus" name="">
	<option value="0" selected="selected">所有</option>
	<option value="1">未支付</option>
	<option value="2">已支付</option>
	</select>
        <a id="btnConsumesSearch" class="easyui-linkbutton"
	data-options="iconCls:'icon-search'" style="margin-left:10px">查询</a><a>（查询出来的数据可统计）</a>
	<a id="consumesOutExcel" class="easyui-linkbutton" style="" data-options="iconCls:'icon-redo'">导出表</a>
</div>

js前端代码

$(function() {
	//导出excel表
	$('#consumesOutExcel').on('click',function(){
		exportExcel();
	});
});

function exportExcel() {
		$.messager.confirm('确认', '确认把该搜索结果导出Excel表格 ？', function(r) {
		if (r) {
			var startTime = $('#startDateConsume').val();
			var endTime = $('#endDateConsume').val();
			var consumesType = $('#consumesType').val();
			var conPaymentStatus = $('#conPaymentStatus').val();
			$.messager.progress({
				title : '处理中',
				msg : '请稍后',
			});
			$.messager.progress('close');
			location.href="web/vip/exportExcel.xlsx?startTime=" rel="external nofollow" +startTime+"&endTime="+endTime+"&consumesType="+consumesType+"&conPaymentStatus="+conPaymentStatus;
		}
	});
} 

java后端代码

@Controller
@RequestMapping("/vip")
public class VipController {
	//文件下载：导出excel表
	@RequestMapping(value = "/exportExcel.xlsx",method = RequestMethod.GET)
	@ResponseBody
	public void exportExcel(HttpServletRequest request,HttpServletResponse response) throws UnsupportedEncodingException{
		//一、从后台拿数据
			if (null == request || null == response)
			{
				return;
			}
			List<VipConsumes> list = null;
			String startTime = request.getParameter("startTime");
			String endTime = request.getParameter("endTime");
			int consumesType = Integer.parseInt(request.getParameter("consumesType"));
			int conPaymentStatus =Integer.parseInt(request.getParameter("conPaymentStatus"));

			VipConsumesExample example = new VipConsumesExample();
			if(consumesType!=0 && conPaymentStatus!=0){
				example.createCriteria().andTimeBetween(startTime, endTime).andConsumeTypeEqualTo(consumesType).andStatusEqualTo(conPaymentStatus);
			}else if(consumesType ==0 && conPaymentStatus!=0) {
				example.createCriteria().andTimeBetween(startTime, endTime).andStatusEqualTo(conPaymentStatus);
			}else if(consumesType!=0 && conPaymentStatus==0){
				example.createCriteria().andTimeBetween(startTime, endTime).andConsumeTypeEqualTo(consumesType);
			}else {
				example.createCriteria().andTimeBetween(startTime, endTime);
			}
            list = this.vipConsumesDao.selectByExample(example);
			//二、 数据转成excel
    		request.setCharacterEncoding("UTF-8");
    		response.setCharacterEncoding("UTF-8");
    		response.setContentType("application/x-download");

    		String fileName = "消费记录.xlsx";
    		fileName = URLEncoder.encode(fileName, "UTF-8");
    		response.addHeader("Content-Disposition", "attachment;filename=" + fileName);
            // 第一步：定义一个新的工作簿
    		XSSFWorkbook wb = new XSSFWorkbook();
    		// 第二步：创建一个Sheet页
    		XSSFSheet sheet = wb.createSheet("startTimeendTime");
    		sheet.setDefaultRowHeight((short) (2 * 256));//设置行高
    		sheet.setColumnWidth(0, 4000);//设置列宽
    		sheet.setColumnWidth(1,5500);
    		sheet.setColumnWidth(2,5500);
    		sheet.setColumnWidth(3,5500);
    		sheet.setColumnWidth(11,3000);
    		sheet.setColumnWidth(12,3000);
    		sheet.setColumnWidth(13,3000);
    		XSSFFont font = wb.createFont();
    		font.setFontName("宋体");
    		font.setFontHeightInPoints((short) 16);

    		XSSFRow row = sheet.createRow(0);
    		XSSFCell cell = row.createCell(0);
    		cell.setCellValue("流水号 ");
    		cell = row.createCell(1);
    		cell.setCellValue("微信名 ");
    		cell = row.createCell(2);
    		cell.setCellValue("微信订单号");
    		cell = row.createCell(3);
    		cell.setCellValue("消费时间");
    		cell = row.createCell(4);
    		cell.setCellValue("消费类型");
    		cell = row.createCell(5);
    		cell.setCellValue("剩余积分 ");
    		cell = row.createCell(6);
    		cell.setCellValue("新增积分 ");
    		cell = row.createCell(7);
    		cell.setCellValue("扣除积分 ");
    		cell = row.createCell(8);
    		cell.setCellValue("消费金额");
    		cell = row.createCell(9);
    		cell.setCellValue("支付方式");
    		cell = row.createCell(10);
    		cell.setCellValue("支付状态 ");
    		cell = row.createCell(11);
    		cell.setCellValue("钱包原始金额");
    		cell = row.createCell(12);
    		cell.setCellValue("钱包扣除金额");
    		cell = row.createCell(13);
    		cell.setCellValue("钱包剩余金额");

    		XSSFRow rows;
    		XSSFCell cells;
    		for (int i = 0; i < list.size(); i++) {
    			// 第三步：在这个sheet页里创建一行
    			rows = sheet.createRow(i+1);
    			// 第四步：在该行创建一个单元格
    			cells = rows.createCell(0);
    			// 第五步：在该单元格里设置值
    			cells.setCellValue(list.get(i).getConsumeId());

    			cells = rows.createCell(1);
    			cells.setCellValue(list.get(i).getName());
    			cells = rows.createCell(2);
    			cells.setCellValue(list.get(i).getOrderNumber());
    			cells = rows.createCell(3);
    			cells.setCellValue(list.get(i).getTime());
    			cells = rows.createCell(4);
    			if (list.get(i).getConsumeType() == 2) {
    				cells.setCellValue("酒水零食费");

    			} else {
    				cells.setCellValue("报名费");
    			}
    			cells = rows.createCell(5);
    			cells.setCellValue(list.get(i).getIntegral());
    			cells = rows.createCell(6);
    			cells.setCellValue(list.get(i).getIntegralIn());
    			cells = rows.createCell(7);
    			cells.setCellValue(list.get(i).getIntegralOut());
    			cells = rows.createCell(8);
    			cells.setCellValue(list.get(i).getMoney());
    			cells = rows.createCell(9);
    			if (list.get(i).getPayment() == 2) {
    				cells.setCellValue("积分抵现");
    			} else if (list.get(i).getPayment() == 3) {
    				cells.setCellValue("微信支付");
    			} else if (list.get(i).getPayment() == 4) {
    				cells.setCellValue("现金");
    			} else if (list.get(i).getPayment() == 1) {
    				cells.setCellValue("钱包");
    			}
    			cells = rows.createCell(10);
    			if (list.get(i).getStatus() == 2) {
    				cells.setCellValue("已支付");
    			} else if (list.get(i).getStatus() == 1) {
    				cells.setCellValue("未支付");
    			}
    			cells = rows.createCell(11);
    			cells.setCellValue(list.get(i).getWalletOriginal());
    			cells = rows.createCell(12);
    			cells.setCellValue(list.get(i).getWalletOut());
    			cells = rows.createCell(13);
    			cells.setCellValue(list.get(i).getWalletSurplus());
    		}

				try {
					OutputStream out = response.getOutputStream();
	    			wb.write(out);
	    			out.close();
	    			wb.close();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}

	}
}

以上为个人经验，希望能给大家一个参考，也希望大家多多支持我们。