Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package ajax; import conn.FactoryManager; import hiben.Products; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.hibernate.Criteria; import org.hibernate.Session; import org.hibernate.criterion.Restrictions; /** * * @author Milinda */ public class getProduct extends HttpServlet { /** * 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 */ // @Override // protected void doPost(HttpServletRequest request, HttpServletResponse response) // throws ServletException, IOException { // try (PrintWriter out = response.getWriter()) { // String pcode = request.getParameter("pcode"); // if (pcode != null && pcode.equals("")) { // Session con = FactoryManager.getSessionFactory().openSession(); // Criteria cri = con.createCriteria(Products.class); // cri.add(Restrictions.eq("prodCode", pcode)); // Products p = (Products) cri.list().get(0); // // String resptext = p.getItmCode() + "," + p.getBrand().getBrandName() + "," + p.getCategory().getCatName(); // out.write(resptext); //// System.out.println(resptext); // } // // } catch (Exception e) { // e.printStackTrace(); // } // } @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { try (PrintWriter out = resp.getWriter()) { String pcode = req.getParameter("pcode"); if (pcode != null && !pcode.equals("")) { Session con = FactoryManager.getSessionFactory().openSession(); Criteria cri = con.createCriteria(Products.class); cri.add(Restrictions.eq("prodCode", pcode)); Products p = (Products) cri.list().get(0); String resptext = p.getItmCode() + "-" + p.getItmName() + "-" + p.getBrand().getBrandName() + "-" + p.getCategory().getCatName(); out.write(resptext); } else { out.write("0"); } } catch (Exception e) { e.printStackTrace(); } } }