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 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.SessionFactory; import org.hibernate.Transaction; import Model.ProjectDetails; import java.util.ArrayList; import javax.servlet.RequestDispatcher; import javax.servlet.http.HttpSession; import org.hibernate.criterion.Restrictions; public class ViewProject 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(); String path = ""; RequestDispatcher rd; try { SessionFactory sf = NewHibernateUtil.getSessionFactory(); Session ss = sf.openSession(); Transaction tr = ss.beginTransaction(); HttpSession hs = request.getSession(); int mineId = Integer.parseInt(request.getParameter("mineId").toString()); Criteria cr = ss.createCriteria(ProjectDetails.class); cr.add(Restrictions.eq("mineId", mineId)); ArrayList<ProjectDetails> PDlist = (ArrayList<ProjectDetails>) cr.list(); ProjectDetails pd = PDlist.get(0); tr.commit(); request.setAttribute("projDet", pd); hs.setAttribute("projDet", pd); path = "viewProject.jsp"; rd = request.getRequestDispatcher(path); } catch (Exception e) { path = "FailureME.jsp"; rd = request.getRequestDispatcher(path); } 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> }