<mime-mapping>

<extension>doc</extension>

<mime-type>application/msword</mime-type>

</mime-mapping>

word是可以的

<mime-mapping>

<extension>ppt</extension>

<mime-type>application/mspowerpoint</mime-type>

</mime-mapping>

可是我要是打开ppt文件却不行，怎么添加阿？

谢谢