lakemove

星期四, 三月 23, 2006

DynaActionForm用法

使用DynaActionForm

首先建立下面几个文件：
struts-config.xml
login.jsp
LoginAction.java
web.xml
success.jsp

在struts-conifg.xml里设置action及mapping ：
















name="success"
path="/success.jsp"
contextRelative="true" />




name="dynaLoginForm"
path="/login"
scope="request"
type="jay.home.struts.action.LoginAction" />









其中的ActionResources文件是由eclipse自动生成的。

然后是login.jsp :


<%@ page language="java" pageEncoding="UTF-8"%>

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles" %>

Login:
Password:

要注意form属性的设置。接下来是LoginAction.java :

package jay.home.struts.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

/**
* MyEclipse Struts
* Creation date: 03-21-2006
*
* XDoclet definition:
* @struts.action validate="true"
*/
public class LoginAction extends Action {

// --------------------------------------------------------- Instance Variables

// --------------------------------------------------------- Methods

/**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) {

//这里可以加入逻辑代码，数据由form参数引入
//DynaActionForm dynaForm = (DynaActionForm) form;
//String name = (String) dynaForm.get("name");
return mapping.findForward("success");
}

}


当然还要保证web.xml的正确：




action
org.apache.struts.action.ActionServlet

config
/WEB-INF/struts-config.xml


debug
3


detail
3

0


action
*.do








http://struts.apache.org/tags-html


/WEB-INF/struts-html.tld





http://struts.apache.org/tags-bean


/WEB-INF/struts-bean.tld





http://struts.apache.org/tags-logic


/WEB-INF/struts-logic.tld





http://struts.apache.org/tags-tiles


/WEB-INF/struts-tiles.tld








最后success.jsp可以随便写，只是为了验证整个流程正确性.

--Unknown @ 11:06   0回复: