导出功能exportExcel (现成直接用)

1. 实体类字段上加 @Excel(name = "xxx"), 表示要导出的字段

    @Excel(name = "订单号")
    private String orderNo;

2. controller (get请求)

    /**
     * 导出订单列表
     */
    @ApiOperation("导出订单列表")
    @GetMapping("/export")
    public void export(HttpServletResponse response, LsOrder lsOrder)
    {
        List<LsOrder> list = lsOrderService.selectLsOrderList(lsOrder);
        ExcelUtil<LsOrder> util = new ExcelUtil<LsOrder>(LsOrder.class);
        util.exportExcel(response, list, "订单数据");
    }

3. 调用exportExcel方法, 输出到浏览器 (导出的所有文件名都是export.xlsx, 不是我想要的)

    /**
     * 对list数据源将其里面的数据导入到excel表单
     * 
     * @return 结果
     */
    public void exportExcel(HttpServletResponse response)
    {
        try
        {
            writeSheet();
            wb.write(response.getOutputStream());
        }
        catch (Exception e)
        {
            log.error("导出Excel异常{}", e.getMessage());
        }
        finally
        {
            IOUtils.closeQuietly(wb);
        }
    }

4. 修改exportExcel方法, 浏览器输出文件, 动态文件名

新增一行

response.setHeader("Content-Disposition", "attachment;filename=" + java.net.URLEncoder.encode("文件名称", "utf-8") + ".xlsx");

    /**
     * 对list数据源将其里面的数据导入到excel表单
     * 
     * @return 结果
     */
    public void exportExcel(HttpServletResponse response)
    {
        try
        {
            response.setHeader("Content-Disposition", "attachment;filename=" + java.net.URLEncoder.encode(sheetName+"-"+System.currentTimeMillis(), "utf-8") + ".xlsx");
            writeSheet();
            wb.write(response.getOutputStream());
        }
        catch (Exception e)
        {
            log.error("导出Excel异常{}", e.getMessage());
        }
        finally
        {
            IOUtils.closeQuietly(wb);
        }
    }