My aim is to display customer info by costumer id by calling my strus2 action change of selectbox value.
My problem is: what should i return from my action class to get the value in json format
I tried the following code, but i don't know what is wrong with it
    <script type="text/javascript">  
  $(function()
   {    alert("This function is calling, on change event of selectbox and customer id="+$(this).val());
     $("#customersjsonlstid").change(function(e)
         { 
                    $.ajax({
                        url: 'showCustomerInfoById.action',  //action name
                        data: "customerid=" + $(this).val(),    
                        dataType: "json",
                        success: function(data) {    
                            // Set the inputs from the json object , json output : {"price": "123.40", "distributor": "XYZ Inc."}          
                            $('#autocompleter_div_result1').val(data.distributor); //showing data on particular div
                            $('#autocompleter_div_result2').val(data.price);  //showing data on particular div
                        }
                    });
                });
    });             
</script>
Selectbox:
                            <sj:select 
                                id="customersjsonlstid" 
                                name="editionType" 
                                href="%{customerJsonselecturl}" 
                                list="lstcust"
                                listValue="name" 
                                listKey="id"   
                                autocomplete="false"
                            />     
             <div id="autocompleter_div_result">`
struts.xml
        <action name="showCustomerInfoById" class="v.esoft.actions.customerdetails.CustomerSelectAction" method="CustomerdetailsById">
             <result name="success" type="json"/> 
        </action> 
Action class
    public class CustomerSelectAction extends ActionSupport {
     private String  customerid;
//---------------------------------------------------------
   public String CustomerdetailsById()
    {
        System.out.print("--------Method called, customer id-----------"+customerid);
        return customerid;
    }
     //---------------------------------------------------------
public String getCustomerid() {
    return customerid;
}
public void setCustomerid(String customerid) {
    this.customerid = customerid;
}
  }