carregaEstrela.java Source code

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Here is the source code for carregaEstrela.java

Source

/*
 * 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.Session;

/**
 *
 * @author ra21507917
 */
public class carregaEstrela 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. */

            Integer idEstrela;

            if (request.getParameter("chave") == null || request.getParameter("chave").equals("")) {
                out.println("Favor informar um id");
            } else {

                idEstrela = Integer.parseInt(request.getParameter("chave"));

                try {

                    Estrela estrela;

                    Session sessao = HibernateUtil.getSessionFactory().openSession();

                    estrela = (Estrela) sessao.get(Estrela.class, idEstrela);

                    if (estrela == null) {
                        out.println("Nao encontrei a estrela de id: " + idEstrela);
                    } else {

                        out.println("ID:" + idEstrela + " ");
                        out.println("Nome:" + estrela.getNome());
                        out.println("Constelao:" + estrela.getConstelacao());
                        out.println("Distancia da Terra: " + estrela.getDistancia_da_Terra());
                    }
                } catch (Exception ex) {
                    out.println("Erro ao buscar estrela: " + ex.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>

}