Try this, will help you in Struts 2.0.14 with jsonplugin-0.32.jar.
struts.xml:
<struts>
<package name="example" extends="json-default">
<action name="HelloWorld" class="example.HelloWorld" >
<result type="json" />
</action>
<action name="HelloWorld1" class="example.HelloWorld" >
<result name="success" >example/HelloWorld.jsp</result>
</action>
</package>
</struts>
action class Helloworld.java:
package prabhakar;
import glb.DB;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* Prabhakar
*/
public class HelloWorld {
private List<StateMaster> stateList= new ArrayList<StateMaster>();
private List<RegnMaster> regnList= new ArrayList<StateMaster>();
private Integer stateId;
public Integer getStateId()
{
return this.stateId;
}
public void setStateId(Integer stateId)
{
this.stateId=stateId;
}
public List<StateMaster> getStateList() {
return stateList;
}
public void setStateList(List<StateMaster> stateList) {
this.stateList = stateList;
}
public void setRegnList(List<RegnMaster> regnList) {
this.regnList = regnList;
}
public List<RegnMaster> getRegnList() {
return regnList;
}
public String execute() throws Exception {
stateList=DB.getStateData()//
if(stateId !=null)
{
regnList=DB.getRegnByStateId(stateId);
}
//setMessage(getText(MESSAGE));
return "success";
}
/**
* Provide default valuie for Message property.
*/
}
You can directly call HelloWorld.action to view the JSON data or else you can bind the JSON data to a form element below.
JSP page HelloWorld.jsp:
/*
Prabhakar
*/
<%@ page contentType="text/html; charset=UTF-8" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<script>
<%@include file="../js/jquery-1.7.1.min.js"%>
</script>
<html>
<!-- JavaScript Plugins -->
<script>
function getLoad(){
var stateId = $('#state').val();
$.getJSON('HelloWorld.action', {'stateId': stateId},
function(data) {
var divisionList = (data.regnList);
var options = $("#regn");
options.find('option')
.remove()
.end();
options.append($("<option />").val("-1").text("--Select--"));
$.each(divisionList, function() {
options.append($("<option />").val(this.regnId).text(this.regnName));
});
}
);}
</script>
<!-- jQuery-UI Dependent Scripts -->
<body>
State List <s:select name="stateId" list="stateList" id="state" listKey="stateId" onchange="getLoad()" listValue="stateName" headerKey="0" headerValue="--select--" />
Regn List <s:select name="regnId" list="regnList" listKey="regnId" id="regn" listValue="regnName" headerKey="0" headerValue="--select--" />
</body>
</html>
Happy coding :)
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