excel下载

excel下载需要的代码：
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-");
response.setHeader("Content-Disposition","attachment;filename=type.xlsx");
ServletOutputStream out =response.getOutputStream();
writer.flush(out,true);
writer.close();
IoUtil.close(System.out);

需要下载的依赖：

org.apache.poi
poi-ooxml
4.1.2