Struts2 framework provide Autocompleter component is a combo box which are auto prompt item add in the list then select and submit
Download the struts2-dojo-plugin.jar library and Include the “struts-dojo-tags” tag and output its header.
The following tag support struts2 framework,
<sx:autocompleter label="My Favorite Book" 
name="mybook" autoComplete="false"
list="{'CoreJava','J2EE','JDBC','Struts1.3','Struts2.0','Spring','Hibernate','EJB',
'Collection','Servlet','JSP','RMI'}" />

 
Directory Structure of <sx:autocompleter> tag Example in Struts 2.0 Using MyEclipse IDE



index.jsp

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

<h1>Autocompleter Tag Example in Struts2 Framework</h1>
 
<s:form action="auto" method="POST" >
 
<sx:autocompleter label="My Favorite Book" name="mybook" autoComplete="false" list="{'CoreJava' , 'J2EE' , 'JDBC' , 'Struts1.3' , 'Struts2.0' , 'Spring' , 'Hibernate' , 'EJB' , 'Collection' , 'Servlet' , 'JSP' , 'RMI'}" />
 
<sx:autocompleter label="My Favorite Course" list="mycourses" name="course" />
<s:submit value="submit" name="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.AutocompleterAction" method="display">
<result name="none" type="dispatcher">/index.jsp</result>
</action>
<action name="auto" class="org.r4r.AutocompleterAction">
<result name="success">/success.jsp</result>
</action>
</package>
</struts>

AutocompleterAction.java

package org.r4r;
import java.util.ArrayList;
import java.util.List;

public class AutocompleterAction {
	List<String> mycourses;
	
	String course;
	String mybook;
	
	public AutocompleterAction(){
		mycourses=new ArrayList<String>();
		mycourses.add("I.Sc.");
		mycourses.add("B.Sc.");
		mycourses.add("M.Sc.");
		mycourses.add("I.A.");
		mycourses.add("B.A.");
		mycourses.add("M.A.");
		mycourses.add("I.Com.");
		mycourses.add("B.Com.");
		mycourses.add("M.Com.");
		mycourses.add("MCA");
		mycourses.add("MBA");
		mycourses.add("BCA");
	}
	public String execute(){
		return "success";
	}
	public String display(){
		return "none";
	}
	public List<String> getMycourses() {
		return mycourses;
	}
	public void setMycourses(List<String> mycourses) {
		this.mycourses = mycourses;
	}
	public String getCourse() {
		return course;
	}
	public void setCourse(String course) {
		this.course = course;
	}
	public String getMybook() {
		return mybook;
	}
	public void setMybook(String mybook) {
		this.mybook = mybook;
	}
}

success.jsp

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

<h1>Autocompleter Tag Example in Struts2 Framework</h1> 
<h4>My Favorite Book : <s:property value="mybook"/></h4>  
<h4>My Favorite Course : <s:property value="course"/></h4>

Output





Struts 1.3 Tutorial and Example
Spring 2.5 Tutorial and Example
Spring 2.5 MVC Tutorial
Spring 2.5 MVC Example