DynaActionForm(动态ActionForm)的使用

在struts中利用DynaActionForm(动态ActionForm)可以节省代码的编写。

1.在struts-config.xml中配置DynaActionForm:加入这个Form中有三个属性

<form-bean name="MyDynaActionForm"  type="org.apache.struts.action.DynaActionForm">
  <form-property name="propertyOne" type="com.enrising.cpmis.web.dto.setup.propertyOne"/>
  <form-property name="propertyTwo" type="java.lang.Object"/>
  <form-property name="rebuildByDisaster" type="model.RebuildByDisaster"/>

</form-bean>

<action
  path="/attchment"
  type="web.struts.action.common.AttchmentAction"
  name="MyDynaActionForm"
  scope="request"
  parameter="method"
  unknown="false"
  validate="true"
>
<forward name="initattachment" path="/business/common/annex.jsp" redirect="false"/>
</action>

2.jsp页面

<html:form action="/capitalSplitAction.do" method="post">

<html:hidden property="propertyOne.activityId" styleId="activityId" />
<bean:define id="dto" name="capitalSplitActionForm"
property="propertyOne" />
<table class="table" cellspacing="0" cellpadding="0">

<tr><td><html:hidden property="propertyOne.planName" /></td></tr>

<tr><td><html:hidden property="propertyTwo.planNameTwo" /></td></tr>

<tr><input name="submit1" type="button" class="bt_xiafa" value="下达" onclick="submitCapital();"></td></tr>

</table>

3.在Action中我们可以通过map的get方法来得到页面传到后台的Form属性对象(这个Action继承DispatchAction)

public ActionForward submitCapital(ActionMapping mapping,ActionForm form,HttpServletRequest request,
                          HttpServletResponse response) throws Exception {

  PropertyOne propertyOne = (PropertyOne)((DynaActionForm) form).get("propertyOne"); //得到页面传到后台的属性对象

  PropertyTwo propertyTwo= (PropertyTwo)((DynaActionForm) form).get("propertyTwo");

  //从而通过这个对象来得到它的属性

  String planName = propertyOne.getPlanName();

  ……

  //同理注册一个DynaActionForm

  ((DynaActionForm) form).getMap().put("PropertyOne", propertyOne); 

  

}

posted on 2014-04-22 20:34  佬叁  阅读(652)  评论(0编辑  收藏  举报

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