Discussion :

[Tino2323]

Bonjour à tous !
Bon voilà, je travaille sur un projet java web application en ce moment et j'ai un problème qui n'est pas très fréquent je pense car je ne trouve pas de solution sur le net depuis maintenant une semaine. Voilà ce qui se passe, j'utilise Mysql comme SGBD , et lors d'une tentative de login c'est à dire (LoginPage.jsp==>LoginServlet), tout fonctionne correctement, après vérification des champs, des données dans la base de données sont récupérés et puis sont mises dans la variable request puis j'emplois un RequestDispatcher pour rediriger vers la vue correspondant en fonction de "un user ou l'admin" :

Code Java :

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/*
 * 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 controllerPackage;
 
import daoPackage.LoginDao;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Vector;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import modelPackage.Sakafo;
import modelPackage.User;
 
/**
 *
 * @author 
 */
public class LoginServlet extends HttpServlet {
    String name2;
 
    /**
     * 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
     */
    // <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
     */
 
 
    /**
     * 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{
        response.setContentType("text/html; charset=UTF-8");
        PrintWriter out = response.getWriter();
        LoginDao lgDao = new LoginDao();
        String username = request.getParameter("username");
        String mdp = request.getParameter("motsDePasse");
        HttpSession sess;
 
       try{
        Vector verite = lgDao.validationLogin(username,mdp);
 
        if((int)verite.get(0)==1) //VERIFICATION LOGIN
        {
            if("admin".equals((String)verite.get(1))){   //RAHA ADMIN
                sess=request.getSession();   
                sess.setAttribute("inona", "admin");
 
                /*User user = new User(); //RECUPERATION TOUT USER
                User[] listeUser = user.getAllUser();
                List userVrai = new ArrayList();
                for(int j=0; j<listeUser.length; j++)
                {
                    userVrai.add(listeUser[j]);
                }
                request.setAttribute("listeAllUser",userVrai);*///INSERTION USER DANS REQUEST
 
                Sakafo sakafo = new Sakafo(); //RECUPERATION TOUT SAKAFO
                Sakafo[] listeSakafo = sakafo.getAllSakafo();
                /*List listeSakafoVrai=new ArrayList();
                listeSakafoVrai.addAll(Arrays.asList(listeSakafo));*/ //INSERTION DANS LIST DU TABLEAUX ALL SAKAFO
                request.setAttribute("listeSakafo",listeSakafo);//INSERTION SAKAFO DANS REQUEST
                RequestDispatcher rd = request.getRequestDispatcher("acceuilAdmin.jsp");
                rd.include(request,response);//FIN RAHA ADMIN
            }          
            else  if("user".equals((String)verite.get(1))){ //RAHA USER
                sess = request.getSession();   
                sess.setAttribute("inona","user");
                sess.setAttribute("idUser",(int)verite.get(2));
 
                Sakafo sakafo = new Sakafo(); //RECUPERATION TOUT SAKAFO
                Sakafo[] listeSakafo = sakafo.getAllSakafo();
                request.setAttribute("listeSakafo",listeSakafo);//INSERTION DANS REQUEST
                RequestDispatcher rd = request.getRequestDispatcher("acceuilUser.jsp");
                rd.include(request,response);//FIN RAHA USER
            }
        }
        else{ //SI ERROR
                out.print("Username ou mot de passe incorrecte!");
                RequestDispatcher rd = request.getRequestDispatcher("LoginPage.jsp");
                rd.include(request,response);
        }
       }
       catch(Exception e)
       {
           System.out.println(e);
       }
 
 
    }
 
    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
 
}

.

Tous ça se déroule très bien, mais arrivé dans l'accueil user , j'entre dans le coin recherche qui est un lien .jsp , c'est dans la "view" "coinRecherche.jsp" que mon problème se passe, au niveau du formulaire de recherche , quand j'appuis sur le bouton rechercher ,aucune réaction, rien ne se passe.
accueilUser.jsp:

Code :

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<%@page import="modelPackage.Sakafo"%>
<!DOCTYPE html>
<html lang="en">
 
<head>
 
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="description" content="">
    <meta name="author" content="">
    <link rel="shortcut icon" href="assets/img/ico/favicon.ico">
    <link rel="apple-touch-icon" sizes="144x144" href="assets/img/ico/apple-touch-icon-144x144.png">
    <link rel="apple-touch-icon" sizes="114x114" href="assets/img/ico/apple-touch-icon-114x114.png">
    <link rel="apple-touch-icon" sizes="72x72" href="assets/img/ico/apple-touch-icon-72x72.png">
    <link rel="apple-touch-icon" href="assets/img/ico/apple-touch-icon-57x57.png">
 
    <title>Tino's Ristorante</title>
 
    <!-- Bootstrap Core CSS -->
    <link href="assets/css/bootstrap.min.css" rel="stylesheet">
    <link href="assets/css/animate.css" rel="stylesheet">
    <link href="assets/css/plugins.css" rel="stylesheet">
 
    <!-- Custom CSS -->
    <link href="assets/css/style.css" rel="stylesheet">
 
    <!-- Custom Fonts -->
    <link href="assets/font-awesome-4.1.0/css/font-awesome.min.css" rel="stylesheet" type="text/css">
    <link href="assets/css/pe-icons.css" rel="stylesheet">
 
</head>
 
<body id="page-top" class="regular-navigation">
 
 
    <div class="master-wrapper">
 
        <div class="preloader">
            <div class="preloader-img">
            	<span class="loading-animation animate-flicker"><img src="assets/img/loading.GIF" alt="loading" /></span>
            </div>
        </div>
 
        <!-- Navigation -->
        <nav class="navbar navbar-default navbar-fixed-top fadeInDown" data-wow-delay="0.2s">
            <div class="container-fluid">
                <!-- Brand and toggle get grouped for better mobile display -->
                <div class="navbar-header page-scroll">
                    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#main-navigation">
                        <span class="sr-only">Toggle navigation</span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                    </button>
                    <a class="navbar-brand smoothie" href="index.html">Tino's<span class="theme-accent-color"> Ristorante</span></a>
                </div>
 
                <!-- Collect the nav links, forms, and other content for toggling -->
                <div class="collapse navbar-collapse" id="main-navigation">
                    <ul class="nav navbar-nav navbar-right">
                        <li><a href="DeconnexionServlet" class="page-scroll">Deconnexion</a></li>         
                        <li><a href="#about" class="page-scroll">Menu</a></li>   
                        <li><a href="coinReherche.jsp" class="page-scroll">Coin Recherche</a></li>
                    </ul>
                </div>
                <!-- /.navbar-collapse -->         
 
            </div>
            <!-- /.container-fluid -->
        </nav>
 
        <!-- Header -->
        <header id="headerwrap" class="backstretched fullheight">
            <div class="container-fluid fullheight">
                <div class="vertical-center row">
                    <div class="col-sm-1 pull-left text-center slider-control match-height">
                        <a href="#" class="prev-bs-slide vertical-center wow fadeInLeft" data-wow-delay="0.8s"><i class="fa fa-long-arrow-left"></i></a>
                    </div>
                    <div class="intro-text text-center smoothie col-sm-10 match-height">                    
                        <div class="intro-heading wow fadeIn heading-font" data-wow-delay="0.8s"><img src="assets/img/intro-logo.png"></div>              
                    </div>
                    <div class="col-sm-1 pull-right text-center slider-control match-height">
                        <a href="#" class="next-bs-slide vertical-center wow fadeInRight" data-wow-delay="0.8s"><i class="fa fa-long-arrow-right"></i></a>
                    </div>
                </div>
            </div>
        </header>
 
        <section id="about" class="top-border-me">
                 <div class="container"> 
                    <div class="row">
                        <!--RECUPERATION LISTE SAKAFO -->
                        <% Sakafo[] listeSakafo = (Sakafo[]) request.getAttribute("listeSakafo"); %>
                        <% for(int i=0; i<listeSakafo.length;i++){ %>
                        <div class="col-md-6">
                            <div class="pd-card" style="width: 18rem; margin-top:10px;">
                                <img src="images/<%= listeSakafo[i].getUrlImage() %>" width="100" height="70" class="card-img-top" alt="Card image cap">
                                <div class="card-body">
                                    <h5 class="card-title"><%= listeSakafo[i].getNomSakafo() %></h5>
                                    <a href="DescriptionServlet?idSakafo=<%= listeSakafo[i].getIdSakafo() %>" class="btn btn-primary">View details</a>
                                </div>
                            </div>
                        </div>
                        <% } %>
 
                </div>
            </div>
                        <div class="pd-filter-pagination" data-pagination="3"></div>        
        </section>
 
 
        <footer class="white-wrapper">
            <div class="container-fluid">
                <div class="row text-center">
                    <div class="col-md-12 wow fadeIn mb30" data-wow-delay="0.2s">
                        <span class="copyright">Copyright 2021.</span>
                    </div>
                    <div class="col-md-12">
                        <ul class="list-inline social-links wow fadeIn" data-wow-delay="0.2s">
                            <li>
                                <a href="#"><i class="fa fa-twitter"></i></a>
                            </li>
                            <li>
                                <a href="#"><i class="fa fa-pinterest"></i></a>
                            </li>
                            <li>
                                <a href="#"><i class="fa fa-dribbble"></i></a>
                            </li>
                            <li>
                                <a href="#"><i class="fa fa-facebook"></i></a>
                            </li>
                            <li>
                                <a href="#"><i class="fa fa-behance"></i></a>
                            </li>
                            <li>
                                <a href="#"><i class="fa fa-linkedin"></i></a>
                            </li>
                        </ul>
                    </div>
                </div>
            </div>
        </footer>
 
        <div id="bottom-frame"></div>
 
        <a href="#" id="back-to-top"><i class="fa fa-long-arrow-up"></i></a>
 
    </div>
 
    <script src="assets/js/jquery.js"></script>
    <script src="assets/js/bootstrap.min.js"></script>
    <script src="assets/js/plugins.js"></script>
    <script src="assets/js/init.js"></script>
 
    <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
        <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
        <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
    <![endif]-->
 
    <script type="text/javascript">
    $(document).ready(function(){
       'use strict';
        jQuery('#headerwrap').backstretch([
          "assets/img/bg/bg1.jpg",
          "assets/img/bg/bg2.jpg",
          "assets/img/bg/bg3.jpg",
        ], {duration: 8000, fade: 500});
    });
    </script>
 
</body>
 
</html>

coinRecherche.jsp:

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<%@page import="modelPackage.Sakafo"%>
<!DOCTYPE html>
<html lang="en">
 
<head>
 
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="description" content="">
    <meta name="author" content="">
    <link rel="shortcut icon" href="assets/img/ico/favicon.ico">
    <link rel="apple-touch-icon" sizes="144x144" href="assets/img/ico/apple-touch-icon-144x144.png">
    <link rel="apple-touch-icon" sizes="114x114" href="assets/img/ico/apple-touch-icon-114x114.png">
    <link rel="apple-touch-icon" sizes="72x72" href="assets/img/ico/apple-touch-icon-72x72.png">
    <link rel="apple-touch-icon" href="assets/img/ico/apple-touch-icon-57x57.png">
 
    <title>Coin Rechercher</title>
 
    <!-- Bootstrap Core CSS -->
    <link href="assets/css/bootstrap.min.css" rel="stylesheet">
    <link href="assets/css/animate.css" rel="stylesheet">
    <link href="assets/css/plugins.css" rel="stylesheet">
    <link href="css/bootstrap-4.3-2.1-dist/css/bootstrap.css" rel="stylesheet">
 
    <!-- Custom CSS -->
    <link href="assets/css/style.css" rel="stylesheet">
 
    <!-- Custom Fonts -->
    <link href="assets/font-awesome-4.1.0/css/font-awesome.min.css" rel="stylesheet" type="text/css">
    <link href="assets/css/pe-icons.css" rel="stylesheet">
 
</head>
 
<body id="page-top" class="regular-navigation">
 
 
    <div class="master-wrapper">
 
        <div class="preloader">
            <div class="preloader-img">
            	<span class="loading-animation animate-flicker"><img src="assets/img/loading.GIF" alt="loading" /></span>
            </div>
        </div>
 
        <!-- Navigation -->
        <nav class="navbar navbar-default navbar-fixed-top fadeInDown" data-wow-delay="0.2s">
            <div class="container-fluid">
                <!-- Brand and toggle get grouped for better mobile display -->
                <div class="navbar-header page-scroll">
                    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#main-navigation">
                        <span class="sr-only">Toggle navigation</span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                    </button>
                    <a class="navbar-brand smoothie" href="index.html">Coin<span class="theme-accent-color"> Recherche</span></a>
                </div>
 
                <!-- Collect the nav links, forms, and other content for toggling -->
                <div class="collapse navbar-collapse" id="main-navigation">
                    <ul class="nav navbar-nav navbar-right">
                        <li><a href="DeconnexionServlet" >Deconnexion</a></li>         
                        <li><a href="acceuilServlet" >Acceuil</a></li>   
                    </ul>
                </div>
                <!-- /.navbar-collapse -->         
 
            </div>
            <!-- /.container-fluid -->
        </nav>
 
       <header id="headerwrap" class="backstretched fullheight">
            <div class="container-fluid fullheight">
                <div class="vertical-center row">
                    <div class="col-sm-1 pull-left text-center slider-control match-height">
                        <a href="#" class="prev-bs-slide vertical-center wow fadeInLeft" data-wow-delay="0.8s"><i class="fa fa-long-arrow-left"></i></a>
                    </div>
                    <div class="intro-text text-center smoothie col-sm-10 match-height">                    
                        <div class="intro-heading wow fadeIn heading-font" data-wow-delay="0.8s"><img src="assets/img/intro-logo.png"></div>              
                    </div>
                    <div class="col-sm-1 pull-right text-center slider-control match-height">
                        <a href="#" class="next-bs-slide vertical-center wow fadeInRight" data-wow-delay="0.8s"><i class="fa fa-long-arrow-right"></i></a>
                    </div>
                </div>
            </div>
        </header> 
 
 
 
        <section id="about" class="top-border-me">
                <div class="container"> 
                    <div class="row" style="margin-top:10px;margin-bottom: 10px">
                        <!-- DIV RESULTAT RECHERCHE -->
                        <div class="col-sm-8">
 
                        </div>
                        <!-- COIN BARRE DE RECHERCHE AVEC D'AUTRE PARAMETRE -->
                        <form action="TraitementSearch" method="post">
                        <div class="col-sm-4">
                          <!-- DESIGNATION -->  
                            <label for="floatdesignation">Designation</label>
                            <input type="text" id="floatdesignation" style="width:200px; height:30px" class="form-control" name="designation" aria-describedby="inputGroup-sizing-lg">
                          <!-- FIN DESIGNATION --> 
 
                          <!-- DEBUT CATEGORIE --> 
                          <h4><u>Categorie:</u></h4>
                          <select class="form-select" name="categorie">
                                <option value="0" selected>All</option>
                                <option value="1">One</option>
                                <option value="2">Two</option>
                                <option value="3">Three</option>
                          </select>
                          <!-- FIN CATEGORIE --> 
 
                          <!-- DEBUT DIFFICULTE -->
                          <h4><u>Difficulte:</u></h4>
                          <select class="form-select" name="difficulte">
                                <option value="1" selected>1</option> 
                                <% for(int diff=2; diff<=10; diff++){ %>
                                    <option value="<%= diff %>"><%= diff %></option>
                                <% } %>
                          </select>
                          <!-- FIN DIFFICULTE --> 
 
                          <!-- DEBUT PRIX MIN --> 
                          <h4><u>Prix min:</u></h4>
                          <select class="form-select" name="prixMin">
                                    <option value="10" selected>10</option> 
                                <% for(int prixMin=11; prixMin<=200; prixMin++){ %>
                                    <option value="<%= prixMin %>"><%= prixMin %></option>
                                <% } %>
                          </select>
                          <!-- FIN PRIX MIN --> 
 
                          <!-- DEBUT PRIX MAX --> 
                          <h4><u>Prix max:</u></h4>
                          <select class="form-select" name="prixMax">
                                    <option value="200" selected>200</option> 
                                <% for(int prixMax=199; prixMax>=10; prixMax--){ %>
                                    <option value="<%= prixMax %>"><%= prixMax %></option>
                                <% } %>
                          </select></br>
                          <!-- FIN PRIX MAX --> 
                          <input type="submit" class="btn btn-outline-success" value="Rechercher">
 
                        </div>
                        </form>
                    </div>
                </div>
                <div class="pd-filter-pagination" data-pagination="3"></div>        
        </section>
 
 
 
        <footer class="white-wrapper">
            <div class="container-fluid">
                <div class="row text-center">
                    <div class="col-md-12 wow fadeIn mb30" data-wow-delay="0.2s">
                        <span class="copyright">Copyright 2021.</span>
                    </div>
                    <div class="col-md-12">
                        <ul class="list-inline social-links wow fadeIn" data-wow-delay="0.2s">
                            <li>
                                <a href="#"><i class="fa fa-twitter"></i></a>
                            </li>
                            <li>
                                <a href="#"><i class="fa fa-pinterest"></i></a>
                            </li>
                            <li>
                                <a href="#"><i class="fa fa-dribbble"></i></a>
                            </li>
                            <li>
                                <a href="#"><i class="fa fa-facebook"></i></a>
                            </li>
                            <li>
                                <a href="#"><i class="fa fa-behance"></i></a>
                            </li>
                            <li>
                                <a href="#"><i class="fa fa-linkedin"></i></a>
                            </li>
                        </ul>
                    </div>
                </div>
            </div>
        </footer>
 
        <div id="bottom-frame"></div>
 
        <a href="#" id="back-to-top"><i class="fa fa-long-arrow-up"></i></a>
 
    </div>
 
    <script src="assets/js/jquery.js"></script>
    <script src="assets/js/bootstrap.min.js"></script>
    <script src="assets/js/plugins.js"></script>
    <script src="assets/js/init.js"></script>
 
    <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
        <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
        <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
    <![endif]-->
 
     <script type="text/javascript">
    $(document).ready(function(){
       'use strict';
        jQuery('#headerwrap').backstretch([
          "assets/img/bg/bg1.jpg",
          "assets/img/bg/bg2.jpg",
          "assets/img/bg/bg3.jpg"
        ], {duration: 8000, fade: 500});
    });
    </script>
</body>
 
</html>

La servlet de traitement de la recherche:

Code Java :

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/*
 * 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 controllerPackage;
 
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
/**
 *
 * @author P13A-101-Tino
 */
public class TraitementSearch 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. */
 
        }
    }
 
    // <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 {
 
        String designation = request.getParameter("designation");
        String categorie = request.getParameter("categorie");
        String difficulte = request.getParameter("difficulte");
        String prixMin = request.getParameter("prixMin");
        String prixMax = request.getParameter("prixMax");
 
        RequestDispatcher rd = getServletContext().getRequestDispatcher("ResultatRecherche.jsp");
        rd.include(request,response);
    }
 
    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
 
}

J'éspère sincèrement trouver de l'aide car ça fait des jours que je tourne autour et je commence vraiment à perdre éspoir, merci.