jboss 下载xls 不提示下载框 直接打开文件了 解决办法

下载 具体：
http://blog.csdn.net/wushuang5566110/article/details/7266300
1.

response.setContentType("application/vnd.ms-excel ");

response.addHeader("Content-disposition", "attachment; filename=456.xls");

2.webinfo下

<mime-mapping>

<extension> xls </extension>

<mime-type> application/vnd.ms-excel </mime-type>

</mime-mapping>