摘抄:java查询数据导出excel并返回给浏览器下载

maven地址为:

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.17</version>
</dependency>

好了，废话不多少，上代码

jsp前端代码(根据自己的业务来)

<span style="font-size:18px;"><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></span>

<span style="font-size:18px;">$(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="+startTime+"&endTime="+endTime+"&consumesType="+consumesType+"&conPaymentStatus="+conPaymentStatus;
        }
    });
} </span>

java后端代码:

<span style="font-size:18px;">@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();
                }

    }
}</span>

摘抄原文：https://blog.csdn.net/xiaoyangsavvy/article/details/80239210

摘抄:java查询数据导出excel并返回给浏览器下载

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