java struts如何将action替换成html或者do

第一步 修改 struts.xml

<constant name="struts.action.extension" value="html" />

第二步 修改web.xml

 <filter-mapping>
  <filter-name>struts2Filter</filter-name>
  <url-pattern>*.html</url-pattern>
  <dispatcher>REQUEST</dispatcher>
  <dispatcher>FORWARD</dispatcher>
 </filter-mapping>