jsp中s标签textfielt接收action问题

  <s:form action="update" theme="simple" namespace="/dept" method="post">
     部门编号:<s:textfield name="d.dno" ></s:textfield>
     部门名称:<s:textfield name="d.dname" ></s:textfield>
     部门位置:<s:textfield name="d.loc" ></s:textfield>
     <s:submit value="提交"></s:submit>
     <s:reset value="重置"></s:reset>
   </s:form>
   </body>

 如何接受action传过来的值啊求大神解答

http://www.iteye.com/problems/38857