关于java WEB下载

web.xml配置mapping 页面直接配置路径就可下载

<mime-mapping><extension>doc</extension><mime-type>application/msWord;chartset=UTF-8</mime-type></mime-mapping><mime-mapping><extension>docx</extension><mime-type>application/vnd.openxmlformats-officedocument.wordPRocessingml.document;chartset=UTF-8</mime-type></mime-mapping><mime-mapping><extension>xlsx</extension><mime-type>application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;chartset=UTF-8</mime-type></mime-mapping><mime-mapping><extension>html</extension><mime-type>text/html;charset=UTF-8</mime-type></mime-mapping><mime-mapping><extension>PPT</extension><mime-type>application/vnd.ms-Powerpoint</mime-type></mime-mapping><mime-mapping><extension>xls</extension><mime-type>application/vnd.ms-Excel</mime-type></mime-mapping><mime-mapping> <extension>rar</extension> <mime-type>application/octet-stream</mime-type> </mime-mapping> <mime-mapping> <extension>sep</extension> <mime-type>application/sep</mime-type> </mime-mapping> <mime-mapping> <extension>gd</extension> <mime-type>application/sep</mime-type> </mime-mapping> <mime-mapping> <extension>pdf</extension> <mime-type>application/pdf</mime-type> </mime-mapping>