problem in record not inserted nor fire any exception

Question

import java.io.IOException;

import java.io.PrintWriter;

import java.sql.Connection;

import java.sql.PreparedStatement;

import javax.naming.Context;

import javax.naming.InitialContext;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.sql.DataSource;

/**

 *

 * @author Esimo

 */

public class NewServlet extends HttpServlet{

   

    /** 

     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.

     * @param request servlet request

     * @param response servlet response

     * @throws ServletException if a servlet-specific error occurs

     * @throws IOException if an I/O error occurs

     */

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)

    throws ServletException, IOException {

        response.setContentType("text/html;charset=UTF-8");

        PrintWriter out = response.getWriter();

          

         

    }

/*

                

           int i=ps.executeUpdate();

                  if(i>0)

            {

                out.print("Success");

            }

        }

     } catch (Exception e2)

        {

            System.out.println(e2);

        }*/

       

    

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">

    /** 

     * Handles the HTTP <code>GET</code> method.

     * @param request servlet request

     * @param response servlet response

     * @throws ServletException if a servlet-specific error occurs

     * @throws IOException if an I/O error occurs

     */

    @Override

    protected void doGet(HttpServletRequest request, HttpServletResponse response)

    throws ServletException, IOException {

        processRequest(request, response);

    } 

    /** 

     * Handles the HTTP <code>POST</code> method.

     * @param request servlet request

     * @param response servlet response

     * @throws ServletException if a servlet-specific error occurs

     * @throws IOException if an I/O error occurs

     */

   

    public void doPost(HttpServletRequest request, HttpServletResponse response)

    throws ServletException, IOException {

        response.setContentType("text/html");

        PrintWriter out = response.getWriter();

        String pn=request.getParameter("name");

        String pa=request.getParameter("age");

        String pe=request.getParameter("email");

        String pm=request.getParameter("mobile");

        String pad=request.getParameter("address");

        DataSource ds=null;

 PreparedStatement ps =null;

     try

   {

        Context mycontext = new InitialContext();

       ds = (DataSource)mycontext.lookup("jdbc/mypo2");

        if(ds==null)

      {

        out.println("JNDI context could not be found");

            }

          else

            {

            out.println("JNDI conext found...");

            Connection con = ds.getConnection();

            ps = con.prepareStatement("insert into telephone(pname,page,pemail,pmobile,paddress)values(?,?,?,?,?)");

            ps.setString(1,pn);

            ps.setString(2,pa);

            ps.setString(3,pe);

            ps.setString(4,pm);

            ps.setString(5,pad);

            //   String query = "insert into telephone values() ";

      //Statement stmt = con.createStatement();

         int i=ps.executeUpdate();

      if(i>0) {

        out.println("Not Inserted");

      } else {

        out.println("Values Inserted");

        }

    } }catch (Exception e) {

      System.out.println(e.getMessage());

    }

  

    }

    /** 

     * Returns a short description of the servlet.

     * @return a String containing servlet description

     */

    @Override

    public String getServletInfo() {

        return "Short description";

    }// </editor-fold>

}