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>