小小代码

Action文件：
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.vaannila;

import java.util.ArrayList;
import java.util.List;

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

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.util.LabelValueBean;
import org.apache.struts.util.MessageResources;

/**
*
* @author eswar@vaannila.com
*/
public class LoginAction extends org.apache.struts.action.Action {

/* forward name="success" path="" */
private final static String SUCCESS = "success";
private final static String FAILURE = "failure";
/**
* This is the action called from the Struts framework.
* @param mapping The ActionMapping used to select this instance.
* @param form The optional ActionForm bean for this request.
* @param request The HTTP Request we are processing.
* @param response The HTTP Response we are processing.
* @throws java.lang.Exception
* @return
*/
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
LoginForm loginForm = (LoginForm) form;

MessageResources messageResources = getResources(request);
String s1 = messageResources.getMessage("t");

String[] strList = s1.split(",");

List<LabelValueBean> valueBeans = new ArrayList<LabelValueBean>();
for (String key : strList) {
System.out.println("key : "+key+" value : "+messageResources.getMessage(key));
valueBeans.add(new LabelValueBean(messageResources.getMessage(key),key));
}

request.setAttribute("mtypelist", valueBeans);

if (loginForm.getUserName().equals(loginForm.getPassword())) {
return mapping.findForward(SUCCESS);
} else {
return mapping.findForward(FAILURE);
}
}


}

-------------------------------------
javaForm文件：
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

package com.vaannila;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;

/**
*
* @author eswar@vaannila.com
*/
public class LoginForm extends org.apache.struts.action.ActionForm {

private String userName;

private String password;

private String timeId;
/**
*
*/
public LoginForm() {
super();
// TODO Auto-generated constructor stub
}

/**
* This is the action called from the Struts framework.
* @param mapping The ActionMapping used to select this instance.
* @param request The HTTP Request we are processing.
* @return
*/
public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {
ActionErrors errors = new ActionErrors();
if (userName == null || userName.length() < 1) {
errors.add("userName", new ActionMessage("error.userName.required"));
// TODO: add 'error.name.required' key to your resources
}
if (password == null || password.length() < 1) {
errors.add("password", new ActionMessage("error.password.required"));
// TODO: add 'error.name.required' key to your resources
}
return errors;
}

/**
* @return the userName
*/
public String getUserName() {
System.out.println("Inside getter "+userName);
return userName;
}

/**
* @param userName the userName to set
*/
public void setUserName(String userName) {
System.out.println("Inside setter "+userName);
this.userName = userName;
}

/**
* @return the password
*/
public String getPassword() {
return password;
}

/**
* @param password the password to set
*/
public void setPassword(String password) {
this.password = password;
}

public String getTimeId() {
return timeId;
}

public void setTimeId(String timeId) {
this.timeId = timeId;
}


}
-------------------------
资源文件：
t=t1,t2,t3,t4,t5,t6,t7
t1=hour
t2=day
t3=week
t4=tttt4
t5=tttt5
t6=tttt6
t7=tttt7
--------------------------------------
jsp文件：
<%--
Document : success
Created on : Dec 15, 2008, 4:08:53 AM
Author : eswar@vaannila.com
--%>

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
<script type="text/javascript">
function showImage(value){
alert(value);
}
</script>
</head>
<body>
<h1>Login Success. Welcome <bean:write name="LoginForm" property="userName"></bean:write></h1>
<html:select name="LoginForm" property="timeId" onchange="showImage(this.value)">
<!--mtypelist为request中设置的属性值 labelProperty="label" property="value"固定写法-->
<html:options collection="mtypelist" labelProperty="label" property="value" />
</html:select>
</body>
</html>