DispatchAction是struts 1 的内置通用分发器

 

import org.apache.struts.actions.DispatchAction; public class UserAction extends DispatchAction {       public ActionForward execute(ActionMapping mapping, ActionForm form,                   HttpServletRequest request,HttpServletResponse response)                   throwsException {            //调用业务逻辑操作                                //一定要执行这句话，或者干脆把execute()方法去掉           return super.execute();     }      public ActionForward list(ActionMapping mapping, ActionForm form,                   HttpServletRequest request,HttpServletResponse response)                   throwsException {            //调用业务逻辑操作                       return mapping.findForward("list_success");     }         public ActionForward del(ActionMappingmapping, ActionForm form,                   HttpServletRequest request,HttpServletResponse response)                   throws Exception {           //调用业务逻辑操作                                     return mapping.findForward("del_success");     }        public ActionForward add(ActionMappingmapping, ActionForm form,                   HttpServletRequest request,HttpServletResponse response)                   throwsException {                       //调用业务逻辑操作                                      return mapping.findForward("add_success");    }    }

 

上面这个Action有三个跟业务相关的方法list()、add()、del()；Struts将请求转入这个Action之后，会根据一个参数名称来决定要执行哪个方法，这个参数的名字和Action内的方法名字一致，这个参数需要在<action-mapping>中配置，一般为action或method

     
                   type="com.clf.struts.action.HelloAction"     />
     

DynaActionForm

DynaActionForm不需要写action，它的使用是配置式的，比普通的FormBean多了<form-property>

 

在action中使用

DynaActionForm dynaForm = (DynaActionForm) form;Sting name = (String) dynaForm.get("name");Integer age = (Integer) dynaForm.get("age");

 

在JSP中跟使用常规的FormBean一样