package ufe;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
*
* @author richard
*/
@WebServlet(name = "NomAge", urlPatterns = {"/NomAge"})
public class NomAge 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();
try {
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet NomAge</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet NomAge at " + request.getContextPath() + "</h1>");
out.println("</body>");
out.println("Bonjour " + request.getParameter("nom"));
String dateNaissance = request.getParameter("dateNaissance");
try {
int age = calculerAge(dateNaissance);
out.println("<br/>Vous avez " + age + " ans");
out.println("</html>");
} catch (ParseException ex) {
Logger.getLogger(NomAge.class.getName()).log(Level.SEVERE, null, ex);
out.println("<br/>'" + dateNaissance + "' n'a pas le bon format 'JJ/MM/AAAA'.");;
}
} finally {
out.close();
}
}
// <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>
/**
* Calcule l'âge d'une personne dont on donne la date de naissance avec le
* format JJ/MM/AAAA.
*
* @param parameter
* @return
*/
private int calculerAge(String dateNaissanceString) throws ParseException {
DateFormat df = new SimpleDateFormat("dd/MM/yyyy");
Date dateNaissanceDate = df.parse(dateNaissanceString);
Calendar dateNaissanceCalendar = Calendar.getInstance();
dateNaissanceCalendar.setTime(dateNaissanceDate);
Calendar today = Calendar.getInstance();
int age = today.get(Calendar.YEAR) - dateNaissanceCalendar.get(Calendar.YEAR);
if (today.get(Calendar.MONTH) < dateNaissanceCalendar.get(Calendar.MONTH)) {
age--;
} else if (today.get(Calendar.MONTH) == dateNaissanceCalendar.get(Calendar.MONTH)
&& today.get(Calendar.DAY_OF_MONTH) < dateNaissanceCalendar.get(Calendar.DAY_OF_MONTH)) {
age--;
}
return age;
}
}