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 javax.servlet.http.HttpSession; import model.Doctor; import model.Lab; import model.Labtest; import model.Login; import model.Test; import org.hibernate.Criteria; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.Transaction; import org.hibernate.criterion.Restrictions; /** * * @author Dell */ public class addnewtest 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"); try (PrintWriter out = response.getWriter()) { /* TODO output your page here. You may use following sample code. */ SessionFactory sf = HibernateUtil.getSessionFactory(); Session ss = sf.openSession(); Transaction tr = ss.beginTransaction(); HttpSession hs = request.getSession(); if (hs.getAttribute("lab") != null) { Lab lb = (Lab) hs.getAttribute("lab"); if (request.getParameter("price") != null && request.getParameter("tid") != null) { int tid = Integer.parseInt(request.getParameter("tid")); Double price = Double.parseDouble(request.getParameter("price")); Labtest lt = new Labtest(); lt.setLId(lb); lt.setTId(new Test(tid)); lt.setTestFees(price); ss.save(lt); request.setAttribute("msg", "Test added to your test list.!"); } Criteria cr = ss.createCriteria(Test.class); ArrayList<Test> alltest = (ArrayList<Test>) cr.list(); ArrayList<Test> alltest1 = alltest; if (alltest.size() > 0) { Criteria cr1 = ss.createCriteria(Labtest.class); cr1.add(Restrictions.eq("lId", lb)); ArrayList<Labtest> ltest = (ArrayList<Labtest>) cr1.list(); if (ltest.size() > 0) { for (int i = 0; i < ltest.size(); i++) { for (int j = 0; j < alltest.size(); j++) { if (ltest.get(i).getTId().equals(alltest.get(j))) { alltest1.remove(j); } } } } request.setAttribute("alltest", alltest1); } tr.commit(); RequestDispatcher rd = request.getRequestDispatcher("lab_addnewtest.jsp"); rd.forward(request, response); } else { tr.commit(); RequestDispatcher rd = request.getRequestDispatcher("login.jsp"); rd.forward(request, response); } } } // <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> }