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. */ import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import model.AgentDetail; import model.AgentFeedback; import model.CustomerDetail; import model.Login; import org.hibernate.Criteria; import org.hibernate.HibernateException; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.Transaction; import org.hibernate.criterion.Restrictions; import util.NewHibernateUtil; /** * * @author rushin */ public class go_to_user 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 { PrintWriter out = response.getWriter(); try { String id = request.getParameter("id"); SessionFactory sf = NewHibernateUtil.getSessionFactory(); Session ss = sf.openSession(); Transaction tr = ss.beginTransaction(); Login l = (Login) ss.get(Login.class, Integer.parseInt(id)); System.out.println("uid is " + l.getUId()); switch (l.getURole()) { case "customer": { Criteria cr = ss.createCriteria(CustomerDetail.class); cr.add(Restrictions.eq("uId", l)); CustomerDetail cd = (CustomerDetail) cr.uniqueResult(); request.setAttribute("fname", cd.getCFname()); request.setAttribute("lname", cd.getCLname()); request.setAttribute("email", cd.getCEmail()); request.setAttribute("mobile", cd.getCNum()); RequestDispatcher rd = request.getRequestDispatcher("contact_customer.jsp"); rd.forward(request, response); break; } case "agent": { Criteria cr = ss.createCriteria(AgentDetail.class); cr.add(Restrictions.eq("uId", l)); AgentDetail ad = (AgentDetail) cr.uniqueResult(); Criteria cr1 = ss.createCriteria(AgentFeedback.class); cr1.add(Restrictions.eq("aId", ad)); ArrayList<AgentFeedback> afl = (ArrayList<AgentFeedback>) cr1.list(); request.setAttribute("ad", ad); if (!afl.isEmpty()) { request.setAttribute("afl", afl); } RequestDispatcher rd = request.getRequestDispatcher("agentdescription.jsp"); rd.forward(request, response); break; } } } catch (HibernateException he) { System.out.println(he.getMessage()); } } // <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 */ @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }