如果你在web.xml里面做好了映射
那么只要
<FORM ACTION= "/你映射的路径" 
METHOD="POST"> 
比如:
  <servlet>
    <servlet-name>testServlet</servlet-name>
    <servlet-class>myapp.testServlet</servlet-class>
  </servlet>  <servlet-mapping>
    <servlet-name>testServlet</servlet-name>
    <url-pattern>/servlet/testServlet.svt</url-pattern>
  </servlet-mapping>
===========
<FORM ACTION= "/servlet/testServlet.svt" 
METHOD="POST">