怎么用springboot+easypoi大数据量excel导出

本篇内容主要讲解"怎么用springboot+easypoi大数据量excel导出"，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习"怎么用springboot+easypoi大数据量excel导出"吧!

上次写了一行代码解决导出导入，没看的小伙伴建议先看下《一行代码做Excel导入导出》,但是实际业务中遇到一个问题，如果数据里比较大的时候，例如10w+数据一次导出，就会出现卡死情况，继续看官方文档，有大数据量导出方法，实现如下

@RequestMapping("export")public void export(HttpServletResponse response) {     Map params = new HashMap<>();     Workbook workbook = bigExcel(1, params, null, new ExportParams("海贼王", "海贼王"),         new Page<>());     ExcelExportUtil.closeExportBigExcel();     downLoadExcel("海贼王.xls", response, workbook);}private Workbook bigExcel(int pageNum, Map params, Workbook workbook, ExportParams exportParams, Page page) {     page.setCurrent(pageNum);     page.setSize(1000);     page.setCondition(params);     page = this.getData(sysUserService.queryPage(page));     List users =             FastJsonUtils.toList(FastJsonUtils.toJSONString(page.getRecords()), SysUser.class);     workbook = ExcelExportUtil.exportBigExcel(exportParams, SysUser.class, users);     if (page.getPages() > pageNum) {         bigExcel(pageNum + 1, params, workbook, exportParams, page);     }     return workbook;}private void downLoadExcel(String fileName, HttpServletResponse response, Workbook workbook) {     try {     response.setCharacterEncoding("UTF-8");     response.setHeader("Content-Disposition", "attachment;filename=">     response.setHeader("content-Type", "application/vnd.ms-excel");     workbook.write(response.getOutputStream());     } catch (IOException e) {     throw new NormalException(e.getMessage());     }}

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