How can I get a GridConnection

hi. I am working with dhtmlx Grid component but I can’t get any data from DB.
here are the source files ( it’s almost same to example file of Grid)

[GridConnection.java]

package storyisland.eventSave;

import com.dhtmlx.connector.ConnectorServlet;
import com.dhtmlx.connector.GridConnector;

import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;

public class GridConnection extends ConnectorServlet{
private String URL = “jdbc:mysql://localhost:3306/test?zeroDateTimeBehavior=convertToNull&useUnicode=true”;
private String USER = “admin”;
private String PASSWORD = “admin”;

public GridConnector conn;
public Connection connection = null;

@Override
protected void configure() {
	// TODO Auto-generated method stub
	try 
	{
		Class.forName ("com.mysql.jdbc.Driver").newInstance ();
		connection = DriverManager.getConnection(URL,USER,PASSWORD);
	} 
	catch (Throwable e) 
	{
		e.printStackTrace();
	}

	conn = new GridConnector(connection);
	conn.render_table("name", "email", "tel", "name,email,tel");
}

}

[InfoView.jsp]
<%@ page language=“java” contentType=“text/html; charset=EUC-KR”
pageEncoding=“EUC-KR”%>

	var mygrid;
	function doInitGrid(){
		mygrid = new dhtmlXGridObject('mygrid_container');
		mygrid.setImagePath("dhtmlxGrid/codebase/imgs/");
		mygrid.setHeader("Model,Qty,Price");
		mygrid.setInitWidths("*,150,150");
		mygrid.setColAlign("left,right,right");
		mygrid.setSkin("dhx_web"); 

		mygrid.init();

		mygrid.loadXML("GridConnection");
	}
 
 </script>
Insert title here

I think the mygrid.loadXML(“GridConnection”); part has a problem. Error message says “the requested resource (/EventSave/GridConnection) is not available.”

how can i do? what should I look into ?

please help me.

Have you configured mapping between GridConnection class and GridConnection path in web.xml ?

Both client side and server side code works correctly.
You can try to load GridConnection directly in browser, do it shows valid xml data of some java error trace ?