IE下载Office2007文件时在下载对话框中变成ZIP文件有关问题的解决

IE下载Office2007文件时在下载对话框中变成ZIP文件问题的解决
转自 http://ugibb510.iteye.com/blog/1483269
tomcat上使用，与原文出处在于<mime-type>标签内容

<mime-mapping>
	<extension>docx</extension>
	<mime-type>vnd.openxmlformats-officedocument.wordprocessingml.document</mime-type>
</mime-mapping>
<mime-mapping>
	<extension>xlsx</extension>
	<mime-type>vnd.openxmlformats-officedocument.spreadsheetml.sheet</mime-type>
</mime-mapping>
<mime-mapping>
	<extension>pptx</extension>
	<mime-type>vnd.openxmlformats-officedocument.presentationml.presentation</mime-type>
</mime-mapping>