Struts2.2.1 optgroup example

In this tutorial, you will see the use of optgroup tag of struts2.2.1. The optgroup tag is a generic Form_UI tag that creates an optgroup component which needs to reside within a select tag <s:select>.

Directory structure of optgroup tag example.

1- index.jsp

<html>ADS_TO_REPLACE_1

<head><title>StrutsOptGroup_Tag_Example</title></head>

<body>

<h1>StrutsOptGroup_Tag_Example</h1><hr>ADS_TO_REPLACE_2

<a href="OptGroupAction.action">OptGroupAction</a>

</body>

</html>

2-optGroupJsp.jsp ADS_TO_REPLACE_3

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

<html>

<head><title>StrutsOptGroup_Tag_Example</title></head>ADS_TO_REPLACE_4

<body><h1>StrutsOptGroup_Tag_Example</h1><hr>

<s:form action="ResultOptGroup.action">

<s:select label="Select City"ADS_TO_REPLACE_5

name="Cites"

list="nameofCity">

<s:optgroup label="City_of_UP"ADS_TO_REPLACE_6

list=" upCitiesName" />

<s:optgroup label="City_Of_UttraKhand"

list="%{#{'Rudrapur':'Rudrapur','RamNagar':'RamNagar','Doon':'Doon'}}" />ADS_TO_REPLACE_7

</s:select><s:submit></s:submit>

</s:form>

</body>ADS_TO_REPLACE_8

</html>

3->OptGroupAction.java

package roseindia.action;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.opensymphony.xwork2.ActionSupport;

public class OptGroupAction extends ActionSupport {

private List<String> nameofCity;
private Map<String,String> upCitiesName;
private String Cites;

public List<String> getNameofCity() {
return nameofCity;
}
public void setNameofCity(List<String> nameofCity) {
this.nameofCity = nameofCity;
}
public Map<String, String> getUpCitiesName() {
return upCitiesName;
}
public void setUpCitiesName(Map<String, String> upCitiesName) {
this.upCitiesName = upCitiesName;
}
public String getCites() {
return Cites;
}
public void setCites(String cites) {
Cites = cites;
}
public OptGroupAction()
{
nameofCity=new ArrayList<String>();
nameofCity.add("Mumbai");
nameofCity.add("Bengaluru");
nameofCity.add("Indore");
nameofCity.add("Delhi");

upCitiesName=new HashMap<String, String>();
upCitiesName.put("Lucknow", "Lucknow");
upCitiesName.put("Bareilly","Bareilly");
upCitiesName.put("Allahabad","Allahabad");
upCitiesName.put("Rampur","Rampur");

}
public String execute() {
return SUCCESS;}

}

4_struts.xml