Etat HTTP 500 - Erreur à l'instantiation de la classe
Bonjour,
Je bloque sur une erreur depuis un moment, si quelqu'un peut me sauver !
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|
Type Rapport d'exception
message Erreur à l'instantiation de la classe servlet [com.gep.servlet.Home]
description Le serveur a rencontré une erreur interne qui l'a empêché de satisfaire la requête.
exception
javax.servlet.ServletException: Erreur à l'instantiation de la classe servlet [com.gep.servlet.Home]
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.base/java.lang.Thread.run(Thread.java:832) |
lorsque j'essaie d'accéder à :
Code:
http://localhost:8080/gestionecoleprimaire/home
Voici mon Web.xml :
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| <?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" id="WebApp_ID">
<display-name>gestionecoleprimaire</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<!-- Home -->
<servlet>
<servlet-name>Home</servlet-name>
<servlet-class>com.gep.servlet.Home</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Home</servlet-name>
<url-pattern>/home</url-pattern>
</servlet-mapping>
<!-- -->
Suite... |
Ma servlet :
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| package com.gep.servlet;
import java.io.IOException;
import java.sql.Connection;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.gep.beans.ClasseRepository;
import com.gep.beans.ConnexionBDD;
import com.gep.beans.CoursRepository;
import com.gep.beans.EleveRepository;
import com.gep.beans.ProfRepository;
public class Home extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
Connection bdd = ConnexionBDD.connexion();
EleveRepository eleveR = new EleveRepository(bdd);
CoursRepository coursR = new CoursRepository(bdd);
ClasseRepository classeR = new ClasseRepository(bdd);
ProfRepository profR = new ProfRepository(bdd);
String nbEleve = String.valueOf(eleveR.countAll());
System.out.println(nbEleve);
request.setAttribute("nbEleve",nbEleve);
/* Transmission de la paire d'objets request/responseà notre JSP */
this.getServletContext().getRequestDispatcher("/home.jsp").forward(request, response);
}
} |
Ma JSP :
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| <%@page contentType="text/html"
pageEncoding="UTF-8"
%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="shortcut icon" type="image/ico" href="img/favicon.gif" />
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<link rel="stylesheet" href="css/home.css">
<link rel="stylesheet" href="css/sidebar.css">
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"
integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN"
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"
integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"
integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
crossorigin="anonymous"></script>
<title>Menu</title>
</head>
<body>
<%@include file="navbar.jsp" %>
<%@include file="sidebar.jsp" %>
<div id="main">
<div class="container">
<a href="./students">
<div class="cards">
<div class="coloredSquare">
<img src="images/Students_black.svg" alt="">
</div>
<div class="titleCard">
<p>Elèves</p>
</div>
<div class="numberCard">
<p>
<% String nbEleve = (String) request.getAttribute("nbEleve");
out.println(nbEleve);
%>
</p>
</div>
</div>
</a>
<a href="./teachers">
<div class="cards">
<div class="coloredSquare">
<img src="images/Teachers_black.svg" alt="">
</div>
<div class="titleCard">
<p>Professeur</p>
</div>
<div class="numberCard">
<p>0</p>
</div>
</div>
</a>
<a href="./classes">
<div class="cards">
<div class="coloredSquare">
<img src="images/Classes_black.svg" alt="">
</div>
<div class="titleCard">
<p>Classes</p>
</div>
<div class="numberCard">
<p>0</p>
</div>
</div>
</a>
<a href="./tests">
<div class="cards">
<div class="coloredSquare">
<img src="images/Tests_black.svg" alt="">
</div>
<div class="titleCard">
<p>Evaluations</p>
</div>
<div class="numberCard">
<p>0</p>
</div>
</div>
</a>
<a href="./absences">
<div class="cards">
<div class="coloredSquare">
<img src="images/Absences_black.svg" alt="">
</div>
<div class="titleCard">
<p>Absences</p>
</div>
<div class="numberCard">
<p>0</p>
</div>
</div>
</a>
<a href="./lessons">
<div class="cards">
<div class="coloredSquare">
<img src="images/Lessons_black.svg" alt="">
</div>
<div class="titleCard">
<p>Cours</p>
</div>
<div class="numberCard">
<p>0</p>
</div>
</div>
</a>
</div>
</div>
<script src="js/sidebar.js" type="text/javascript"></script>
</body>
</html> |
Je tourne sur le server Tomcat v9.0.
Merci par avance de votre aide.
