The Struts 2.0 framework provide select tag to drop down item in the list through the<s:select></s:select> tag. 
This tag provide the facility to get drop down element in the list .
The Struts 2 select component provide the following <s:select></s:select> tag:

<s:select label="Day Name" headerKey="-1" headerValue="Select Day" list="selectDayList" name="day"/>

 
Directory Structure of <s:select> tag Example in Struts 2.0 Using MyEclipse IDE



index.jsp

<%@taglib uri="/struts-tags" prefix="s"%>
<h2>Select tag example in struts2 framework</h2>
<s:form action="select">
<s:select label="Day Name" headerKey="-1" headerValue="Select Day list="selectDayList" name="day"/>
<s:submit></s:submit>
</s:form>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
	xmlns="http://java.sun.com/xml/ns/javaee" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  
  <filter>
  <filter-name>f1</filter-name>
  <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
  </filter>
  <filter-mapping>
  <filter-name>f1</filter-name>
  <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration
2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="demo" extends="struts-default">
<action name="" class="org.r4r.SelectAction" method="display">
<result name="none" type="dispatcher">/index.jsp</result>
</action>
<action name="select" class="org.r4r.SelectAction">
<result name="success">/success.jsp</result>
</action>
</package>
</struts> 

SelectAction.java

package org.r4r;

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

public class SelectAction {
	List<String> selectDayList;
	String day;
	
	public SelectAction(){
		selectDayList=new ArrayList<String>();
		selectDayList.add("Sunday");
		selectDayList.add("Monday");
		selectDayList.add("Tuesday");
		selectDayList.add("Wednesday");
		selectDayList.add("Thursday");
		selectDayList.add("Friday");
		selectDayList.add("Saturday");
	}
	public String execute(){
		return "success";
	}
	public String display(){
		return "none";
	}
	public List<String> getSelectDayList() {
		return selectDayList;
	}
	public void setSelectDayList(List<String> selectDayList) {
		this.selectDayList = selectDayList;
	}
	public String getDay() {
		return day;
	}
	public void setDay(String day) {
		this.day = day;
	}
	

}

success.jsp

<%@taglib uri="/struts-tags" prefix="s"%>

Select Day:-<s:property value="day"/>

Output





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