bd.ac.seu.pos.AddSupplierController.java Source code

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Here is the source code for bd.ac.seu.pos.AddSupplierController.java

Source

package bd.ac.seu.pos;

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

import bd.ac.seu.pos.SessionFactorySingleton;
import bd.ac.seu.pos.Supplier;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
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 org.hibernate.Session;

/**
 *
 * @author kmhasan
 */
@WebServlet(urlPatterns = { "/AddSupplierController" })
public class AddSupplierController 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 {
        try {
            Session session = SessionFactorySingleton.getSessionFactory().openSession();

            int id = Integer.parseInt(request.getParameter("supplierId"));
            String name = request.getParameter("supplierName");
            String address = request.getParameter("supplierAddress");

            Supplier supplier = new Supplier(id, name, address);
            session.beginTransaction();
            session.save(supplier);
            session.getTransaction().commit();

            List<Supplier> suppliers = session.createCriteria(Supplier.class).list();

            request.setAttribute("supplier", supplier);
            request.setAttribute("suppliers", suppliers);

            getServletContext().getRequestDispatcher("/supplierView.jsp").forward(request, response);
        } catch (Exception e) {
            System.err.println(e);
        }
    }

    // <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>

}