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 servlets; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Calendar; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import model.Email; import model.User; import org.apache.commons.mail.EmailException; import utilities.PageMessage; /** * * @author Bruno */ @WebServlet(name = "InsertTransferToken", urlPatterns = { "/InsertTransferToken" }) public class InsertTransferToken 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 { HttpSession session = request.getSession(); User user = (User) session.getAttribute("user"); int destinationType = Integer.parseInt(request.getParameter("destinationType")); String amount = request.getParameter("ammount"); String email = user.getEmail(); String action = request.getParameter("action"); if (amount.equals("")) { ArrayList<PageMessage> errors = new ArrayList(); PageMessage e1 = new PageMessage(); e1.setText(" obrigatrio a insero de um valor para a transferncia."); e1.setType("danger"); errors.add(e1); session.setAttribute("messages", errors); response.sendRedirect("transaction.jsp"); } Calendar cal = Calendar.getInstance(); int mi = cal.get(Calendar.MILLISECOND); int code = (int) Math.abs((Math.random() * 1000) * mi); Calendar cal2 = Calendar.getInstance(); int h = cal2.get(Calendar.HOUR_OF_DAY); int d = cal2.get(Calendar.DAY_OF_MONTH); int token = Math.abs((code * code * h) / (d)); try { Email.sendToken(email, Integer.toString(token)); } catch (EmailException ex) { internalError(session, response); } String accountToSend = null; if (destinationType == 1) { accountToSend = request.getParameter("same_account_number"); request.setAttribute("same_account_number", accountToSend); } else { accountToSend = request.getParameter("other_account_number"); String agencyToSend = request.getParameter("other_account_agency"); String identifier = request.getParameter("identifier"); if (accountToSend.equals("") || agencyToSend.equals("") || identifier.equals("")) { ArrayList<PageMessage> errors = new ArrayList(); PageMessage e1 = new PageMessage(); e1.setText("O formulrio est incompleto."); e1.setType("danger"); errors.add(e1); session.setAttribute("messages", errors); response.sendRedirect("transaction.jsp"); } request.setAttribute("other_account_number", accountToSend); request.setAttribute("other_account_agency", agencyToSend); request.setAttribute("identifier", identifier); } request.setAttribute("code", code); request.setAttribute("amount", amount); request.setAttribute("action", action); request.setAttribute("destinationType", destinationType); RequestDispatcher rd = request.getServletContext().getRequestDispatcher("/insertToken.jsp"); rd.forward(request, response); } public void internalError(HttpSession session, HttpServletResponse response) throws IOException { ArrayList<PageMessage> errors = new ArrayList(); PageMessage e1 = new PageMessage(); e1.setTitle("Erro interno."); e1.setText(" Aconteceu algum erro interno, estaremos solucionando o problema assim que possvel."); e1.setType("danger"); errors.add(e1); session.setAttribute("messages", errors); response.sendRedirect("transaction.jsp"); } // <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> }