Question

Can anyone please help me to understand how should i access json data in js.
JSP-struts code to access. i am using struts2 , json, dojo. But getting issue accessing the data.

var chartData = dojo.xhrGet({
        url : "getJSONResult",
        handleAs : "json",
        preventCache : false,
        load : function(data) {
             //how to process

        }
    });

my struts.xml

<package name="json" namespace="/" extends="json-default">
    <action name="getJSONResult" method="execute"

class="uk.co.bandc.businessmonitor.web.controller.ShowTransactionAction">
        <result type="json" />
    </action>
</package>

My action class

package uk.co.bandc.businessmonitor.web.controller;

import com.opensymphony.xwork2.ActionSupport;

public class ShowTransactionAction extends ActionSupport {
/**
 * 
 */
private static final long serialVersionUID = 1L;

int[] numberarray1 = { 10000, 9200, 11811, 12000, 7662, 13887, 14200, 12222, 12000,    
10009, 11288, 12099 };

public String execute() {

    return SUCCESS;
} // End execute()

public int[] getNumberarray1() {
    return numberarray1;
}

public void setNumberarray1(int[] numberarray1) {
    this.numberarray1 = numberarray1;
}

} // End class

Answer 1

What kind of chart do you want to draw? your data seems to be one-dimensional. Typically for a cartesian chart (bar, line etc) you will need 2 dimensional data, for example:

var exampleData = 
[
{ time: 10, count: 7382 },
{ time: 20, count: 1852 },
{ time: 35, count: 2397 },
{ time: 50, count: 1442 },
{ time: 55, count: 1854 }
];

You can then use the dojox.charting.Chart2D to render the chart

See http://dojotoolkit.org/documentation/tutorials/1.6/charting/ for examples