html - how do I to retrieve the value of a hidden input[type=submit] from my servlet -

as title says, how retrieve value of hidden input[type=submit] servlet ?

i've tried line, wouldn't work me, modifpost servlet:

public void dopost(httpservletrequest request, httpservletresponse response)             throws servletexception, ioexception {     string type = (string) request.getattribute("type"); } 

knowing have in jsp :

<form method="post" action="<c:url value="/modifpost"/>" class="sansretourligne">     <input type="text" disabled style="visibility: hidden;" class="sansretourligne" name="type" value="p" /> </form> 

web.xml :

    <servlet>         <servlet-name>modifpost</servlet-name>         <servlet-class>com.forum.servlets.modifpost</servlet-class>     </servlet>     <servlet-mapping>         <servlet-name>modifpost</servlet-name>         <url-pattern>/modifpost</url-pattern>     </servlet-mapping>