该问题已经解决了,我修改了web.xml,加了下面几句话
<mime-mapping>
<extension>csv</extension>
<mime-type>application/msexcel</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xls</extension>
<mime-type>application/msexcel</mime-type>
</mime-mapping>
<mime-mapping>
<extension>doc</extension>
<mime-type>application/msword</mime-type>
</mime-mapping>
就ok了.
好了,有谁进来留个言.3天后把分散掉.
<mime-mapping>
<extension>csv</extension>
<mime-type>application/msexcel</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xls</extension>
<mime-type>application/msexcel</mime-type>
</mime-mapping>
<mime-mapping>
<extension>doc</extension>
<mime-type>application/msword</mime-type>
</mime-mapping>
就ok了.
好了,有谁进来留个言.3天后把分散掉.
查找后缀名 csv 点击 高级 ,勾上 下载后确定打开。