<!-- Hutool -->
<dependency>
  <groupId>cn.hutool</groupId>
  <artifactId>hutool-all</artifactId>
  <version>5.8.23</version>
</dependency>

ExcelWriter writer = ExcelUtil.getWriter(true);
        writer.write(rows, true);
        ServletOutputStream out=response.getOutputStream();
        response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-8");
        response.setHeader("Content-Disposition","attachment;filename=test.xlsx");

        writer.flush(out, true);
        // 关闭writer，释放内存
        writer.close();
        //此处记得关闭输出Servlet流
        IoUtil.close(out);