Excel保存
设置 Header Content-disposition 可以
如果设置为 attachment 就下载
如果设置为 inline 就直接打开

response.setContentType("application/msexcel");
加上
response.setHeader("Content-disposition", "attachment; filename=\"export.xls\"");
或
response.setHeader("Content-disposition", "inline; filename=\"export.xls\"");


导出excel时在Servlet中设置
response.setContentType("application/x-download");
response.setHeader("Content-Disposition", "attachment;filename="
+ fileName + ".xls");