0
Error:
org.apache.jasper.JasperException: An exception occurred processing JSP page /ViewAluno/index.jsp at line 20
17:
18: <body>
19:
20: <input type="text" value="<%=aluno.getId()%>">
21:
22: <input type="text" value="<%=aluno.getLogin()%>">
23:
JSP from Login:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html lang="pt-BR">
<head>
<meta charset="utf-8"/>
<title>Login-PortalEducando</title>
<link rel="shortcut icon" href="img/favicon.ico" />
<link rel="stylesheet" href="css/bootstrap-custom.css">
<meta name=description content="Login">
<meta name=viewport content="width=device-width, initial-scale=1">
</head>
<body>
<div class="container">
<nav class="navbar navbar-default">
<div class="container-fluid">
<!--RESPONSIVO PARA DISPOSITVOS TELAS MENORES -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<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" href="index.jsp"><img id="logoPortalEducando"src="img/PortalEducando.png" alt="Portal Educando"></a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<%@ include file="menu-publico.jsp"%>
<!-- FIM Botão AJUDA -->
<!--Inicio modal AJUDA-->
<div class="modal fade" id="modalAjuda"tabindex="-1" role="dialog" aria-labelledby="MyModalLabel">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h4 class="modal-title" id="myModalLabel"><i class="fa fa-question-circle pull-left i-ajuda-modal"></i> Ajuda - Login</h4>
</div>
<div class="modal-body">
<p>Local voltado para informações de ajuda realizar LOgin.</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default btn-fechar-modal" data-dismiss="modal">Fechar</button>
</div>
</div>
</div>
</div>
<!--FIM modal AJUDA-->
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
<br><br>
<!-- CONTEUDO CENTRAL (PAINEL) -->
<div class="row-fluid">
<div class="col-md-12">
<div class="panel panel-primary panel-login">
<div class="panel-heading title-login"><strong><span class="glyphicon glyphicon-log-in"></span> FAZER LOGIN</strong></div>
<div class="panel-body ">
<div class="form-inline">
<div class="form-group">
<form action="AutenticacaoServlet" method="post" accept-charset="utf-8">
<div></div>
<div class="input-group">
<!-- Colocar esse select ajustado dentro da caixa -->
<select class="form-control form-login-login" name="tipoUsuario">
<option value='Aluno'>Aluno</option>
<option value='Responsavel'>Responsável</option>
<option value='Funcionario'>Funcionário</option>
</select>
<span class="input-group-addon"><i class="glyphicon glyphicon-user"></i>
</span>
<input name="login" class="form-control form-login-login" type="text" placeholder="Login"></div>
<br>
<div class="espaco"></div>
<div class="input-group">
<span class="input-group-addon"><i class="glyphicon glyphicon-lock"></i>
</span>
<input name="senha" class=form-control form-login-login" type="password" placeholder="Senha">
</div>
<br><br>
<div class = "g-recaptcha" data-SiteKey = "6LevaR4TAAAAALT2xsSedvrxGtcXGIQlRGPFZpy5"></div><br>
<button type="submit" class="btn btn-primary btn-block botao-fazer-login">Fazer Login</button><br>
</form>
<a id="EsqueceuSenha" href=""><u>Esqueceu a Senha?</u></a>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
<!-- INICIO RODAPE -->
<footer>
<!-- JQUERY -->
<script src="js/jquery.js"></script>
<!-- BASE BOOTSTRAP-->
<script src="js/bootstrap.min.js"></script>
<script src="js/npm.js"></script>
<script src="js/bootstrap-custom.js"></script>
<script src="js/tooltip.js"></script>
<!-- <script src ='https://www.google.com/recaptcha/api.js'></script> -->
</footer>
<!-- FIM DO RODAPE -->
Page that should appear:
<%@ page import="com.portaleducando.aluno.Aluno" %>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%
HttpSession sessionLogin = request.getSession();
Aluno aluno = (Aluno) request.getAttribute("UsuarioLogado");
%>
<!DOCTYPE html>
<html lang="pt-BR">
<head>
<title>Inicio-Portal Educando</title>
<%@ include file="cabecalho-aluno.jsp"%>
</head>
<body>
<input type="text" value="<%=aluno.getId()%>">
<input type="text" value="<%=aluno.getLogin()%>">
<input type="text" value="<%=aluno .getCpf()%>">
<nav class="navbar navbar-default">
<div class="container-fluid">
<!--RESPONSIVO PARA DISPOSITVOS TELAS MENORES -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<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" href="index.jsp"><img id="logoPortalEducando" src="../img/PortalEducando.png" alt="Portal Educando"></a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<%@ include file="menu-aluno.jsp"%>
<!-- FIM Botão AJUDA -->
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
<div class="container">
<div class="row-fluid">
<!-- conteudo da esquerda -->
<div class="col-xs-12 esquerda">
<div class="panel panel-primary banner-interativo teste">
</div>
</div>
</div>
</div>
<div></div>
</body>
<!-- INICIO RODAPE -->
<footer>
<%@ include file="rodape-aluno.jsp"%>
<!-- JQUERY -->
<script src="../js/jquery.js"></script>
<!-- BASE BOOTSTRAP-->
<script src="../js/bootstrap.min.js"></script>
<script src="../js/npm.js"></script>
<script src="../js/bootstrap-custom.js"></script>
<script src="../js/tooltip.js"></script>
</footer>
<!-- FIM DO RODAPE -->
Servlet of authentication:
package com.portaleducando.servlets;
import java.io.IOException;
import java.sql.SQLException;
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 javax.servlet.http.HttpSession;
import com.portaleducando.aluno.Aluno;
import com.portaleducando.aluno.ControladorAluno;
import com.portaleducando.aluno.RepositorioAlunoBDR;
import com.portaleducando.exceptions.SenhaInvalidaException;
import com.portaleducando.exceptions.UsuarioNaoEncontradoException;
import com.portaleducando.fachada.Fachada;
import com.portaleducando.funcionario.Funcionario;
import com.portaleducando.funcionario.ControladorFuncionario;
import com.portaleducando.funcionario.RepositorioFuncionarioBDR;
import com.portaleducando.professor.Professor;
import com.portaleducando.responsavel.Responsavel;
@WebServlet("/AutenticacaoServlet")
public class AutenticacaoServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public AutenticacaoServlet() {
super();
}
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
}
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
String login = request.getParameter("login");
String senha = request.getParameter("senha");
String tipoUsuario = request.getParameter("tipoUsuario");
Fachada f = Fachada.getInstance();
if (tipoUsuario.equals("Funcionario")) {
try {
if ( f.procurarLoginFuncionario(login, senha) == true ){
Funcionario funcionario = f.funcionarioProcurarNome(login);
HttpSession sessionLogin = request.getSession();
sessionLogin.setAttribute("UsuarioLogado", funcionario);
response.sendRedirect("ViewFuncionario/index.jsp");
} else {
System.out.println("Dados Inválidos");
response.sendRedirect("login.jsp");
}
} catch (SenhaInvalidaException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (UsuarioNaoEncontradoException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
}
} else if (tipoUsuario.equals("Responsavel")) {
try {
if (f.procurarLoginResponsavel(login, senha) == true ){
Responsavel responsavel = f.reponsavelProcurarNome(login);
HttpSession sessionLogin = request.getSession();
sessionLogin.setAttribute("UsuarioLogado", responsavel);
response.sendRedirect("ViewResponsavel/index.jsp");
} else {
System.out.println("Dados Inválidos");
response.sendRedirect("login.jsp");
}
} catch (SenhaInvalidaException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (UsuarioNaoEncontradoException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else if (tipoUsuario.equals("Aluno")) {
try {
if (f.procurarLoginAluno(login, senha) == true ) {
//Aluno aluno = new Aluno();
Aluno aluno = f.alunoProcurarNome(login);
HttpSession sessionLogin = request.getSession();
sessionLogin.setAttribute("UsuarioLogado", aluno);
response.sendRedirect("ViewAluno/index.jsp");
} else {
System.out.println("Dados Inválidos");
response.sendRedirect("login.jsp");
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (UsuarioNaoEncontradoException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else if (tipoUsuario.equals("Professor")) {
try {
if (f.procurarLoginProfessor(login, senha) == true ) {
//Aluno aluno = new Aluno();
Professor professor = f.professorProcurarNome(login);
HttpSession sessionLogin = request.getSession();
sessionLogin.setAttribute("UsuarioLogado", professor);
response.sendRedirect("ViewProfessor/index.jsp");
} else {
System.out.println("Dados Inválidos");
response.sendRedirect("login.jsp");
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (UsuarioNaoEncontradoException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
Repositório Aluno:
package com.portaleducando.aluno;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import javax.naming.spi.DirStateFactory.Result;
import com.portaleducando.endereco.Endereco;
import com.portaleducando.exceptions.AlunoJaCadastradoException;
import com.portaleducando.exceptions.AlunoNaoEncontradoException;
import com.portaleducando.exceptions.SenhaInvalidaException;
import com.portaleducando.exceptions.UsuarioNaoEncontradoException;
import com.portaleducando.responsavel.Responsavel;
import com.portaleducando.turma.CampoObrigatorioException;
import com.portaleducando.turma.Turma;
import com.portaleducando.util.Conexao;
import com.portaleducando.util.Database;
//Usa o implements pq o IRepositorio tem métodos abstratos e não pode ser instanciado
public class RepositorioAlunoBDR implements IRepositorioAluno {
private Connection conectar = null;
public RepositorioAlunoBDR() throws Exception {
this.conectar = Conexao.getConnection(Database.MYSQL);
}
public void cadastrar(Aluno aluno) throws CampoObrigatorioException, SQLException {
PreparedStatement stmt = null;
String sql;
sql = "INSERT INTO aluno (nome, sexo, data_nascimento, cpf, cep, cidade, estado, rua, bairro, numero,"
+ "telefone, login, senha, id_turma, id_perfil_usuario, status)"
+ "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?); ";
try {
stmt = this.conectar.prepareStatement(sql, java.sql.Statement.RETURN_GENERATED_KEYS);
stmt.setString(1, aluno.getNome());
stmt.setString(2, aluno.getSexo());
stmt.setString(3, aluno.getData_nascimento());
stmt.setString(4, aluno.getCpf());
stmt.setString(5, aluno.getEndereco().getCep());
stmt.setString(6, aluno.getEndereco().getCidade());
stmt.setString(7, aluno.getEndereco().getEstado());
stmt.setString(8, aluno.getEndereco().getRua());
stmt.setString(9, aluno.getEndereco().getBairro());
stmt.setString(10, aluno.getEndereco().getBairro());
stmt.setString(11, aluno.getTelefone());
stmt.setString(12, aluno.getLogin());
stmt.setString(13, aluno.getSenha());
stmt.setInt(14, aluno.getTurma().getId());
stmt.setInt(15, aluno.getId_perfil_usuario());
stmt.setString(16, aluno.getStatus());
stmt.execute();
} finally {
stmt.close();
}
}
public void atualizar(Aluno aluno) throws AlunoNaoEncontradoException, CampoObrigatorioException, SQLException {
PreparedStatement stmt = null;
String sql = null;
try {
if (aluno != null) {
sql = "UPDATE aluno SET nome = ?, sexo = ?, data_nascimento = ?, cpf = ?, cep = ?,"
+ "cidade = ?, estado = ?, rua = ?, bairro = ?, numero = ?, telefone = ?, login = ?,"
+ "senha = ?, id_turma = ? " + "WHERE id = ?";
stmt = this.conectar.prepareStatement(sql);
stmt.setString(1, aluno.getNome());
stmt.setString(2, aluno.getSexo());
stmt.setString(3, aluno.getData_nascimento());
stmt.setString(4, aluno.getCpf());
stmt.setString(5, aluno.getEndereco().getCep());
stmt.setString(6, aluno.getEndereco().getCidade());
stmt.setString(7, aluno.getEndereco().getEstado());
stmt.setString(8, aluno.getEndereco().getRua());
stmt.setString(9, aluno.getEndereco().getBairro());
stmt.setString(10, aluno.getEndereco().getNumero());
stmt.setString(11, aluno.getTelefone());
stmt.setString(12, aluno.getLogin());
stmt.setString(13, aluno.getSenha());
stmt.setInt(14, aluno.getTurma().getId());
stmt.setInt(15, aluno.getId());
Integer resultado = stmt.executeUpdate();
if (resultado == 0) {
throw new AlunoNaoEncontradoException();
}
}
} finally {
stmt.close();
}
}
public void removerId(int id) throws AlunoNaoEncontradoException, SQLException {
PreparedStatement stmt = null;
String sql = null;
try {
sql = "UPDATE aluno SET status = 'n' WHERE id = ?";
stmt = this.conectar.prepareStatement(sql);
stmt.setInt(1, id);
stmt.execute();
} finally {
stmt.close();
}
}
//Listagem da table do aluno
public ArrayList<Aluno> listar() throws SQLException {
PreparedStatement stmt = null;
ResultSet rs = null;
ArrayList<Aluno> alunos = new ArrayList<Aluno>();
String sql = null;
try {
sql = "SELECT a.id, a.nome, a.sexo, a.id_turma, DATE_FORMAT(a.data_nascimento, '%d/%m/%Y') AS data_nascimento, a.telefone, t.id, t.nome, a.status"
+ " FROM aluno as a, turma as t"
+ " WHERE t.id = a.id_turma and a.status = 's' ";
stmt = this.conectar.prepareStatement(sql);
rs = stmt.executeQuery();
while (rs.next()) {
Turma turma = new Turma(rs.getInt("t.id"), rs.getString("t.nome"));
Aluno aluno = new Aluno(rs.getInt("a.id"), rs.getString("a.nome"), rs.getString("a.sexo"),
rs.getString("data_nascimento"), rs.getString("telefone"), turma,rs.getInt("id_turma"),rs.getString("status"));
alunos.add(aluno);
}
} finally {
stmt.close();
rs.close();
}
return alunos;
}
//Listagem para fazer a alteração dos dados com o procurarId
public ArrayList<Aluno> listar(String complemento) throws SQLException {
PreparedStatement stmt = null;
ResultSet rs = null;
ArrayList<Aluno> alunos = new ArrayList<Aluno>();
String sql = null;
try {
sql = "SELECT * FROM aluno WHERE status = 's' ";
sql += complemento;
stmt = this.conectar.prepareStatement(sql);
rs = stmt.executeQuery();
while (rs.next()) {
Turma turma = new Turma(rs.getInt("id"),rs.getString("nome"));
Endereco endereco = new Endereco(rs.getString("cep"), rs.getString("cidade"), rs.getString("estado"),
rs.getString("rua"), rs.getString("bairro"), rs.getString("numero"));
Aluno aluno = new Aluno(rs.getInt("id"), rs.getString("nome"), rs.getString("sexo"),
rs.getString("data_nascimento"), rs.getString("cpf"), endereco, rs.getString("telefone"),
rs.getString("login"), rs.getString("senha"), turma, rs.getString("status"));
alunos.add(aluno);
}
} finally {
stmt.close();
//rs.close();
}
return alunos;
}
public Aluno procurarId(int id) throws AlunoNaoEncontradoException, SQLException {
String complemento = "and id = " + id;
ArrayList<Aluno> alunos = this.listar(complemento);
return alunos.get(0);
}
public Aluno procurarNome(String nome) throws AlunoNaoEncontradoException, SQLException {
String complemento = "AND login = " + "'" + nome + "'";
ArrayList<Aluno> alunos = this.listar(complemento);
return alunos.get(0);
}
//Método para visualizar todos do aluno, turma e responsável
public ArrayList<Aluno> visualizar(String comp) throws SQLException {
PreparedStatement stmt = null;
ResultSet rs = null;
ArrayList<Aluno> alunos = new ArrayList<Aluno>();
String sql = null;
try {
sql = "SELECT a.id, a.nome, a.sexo, a.id_turma, DATE_FORMAT(a.data_nascimento, '%d/%m/%Y') AS data_nascimento, a.cpf, a.cep, a.cidade, a.estado, a.rua,"
+ "a.bairro, a.numero, a.login, a.telefone, t.id, t.nome, t.turno, resp.id, resp.nome,"
+ "resp.sexo, DATE_FORMAT(resp.data_nascimento, '%d/%m/%Y') AS data_nascimentoR, resp.cpf,"
+ "resp.login, resp.telefone, resp.id_aluno"
+ " FROM aluno as a, turma as t, responsavel as resp "
+ "WHERE t.id = a.id_turma and a.id = resp.id_aluno and a.id ";
sql += comp;
stmt = this.conectar.prepareStatement(sql);
rs = stmt.executeQuery();
while (rs.next()) {
Endereco endereco = new Endereco(rs.getString("a.cep"), rs.getString("a.cidade"), rs.getString("a.estado"),
rs.getString("a.rua"), rs.getString("a.bairro"), rs.getString("a.numero"));
Turma turma = new Turma(rs.getInt("t.id"), rs.getString("t.nome"), rs.getString("t.turno"));
Responsavel responsavel = new Responsavel(rs.getInt("resp.id"),rs.getString("resp.nome"),rs.getString("resp.sexo"),
rs.getString("data_nascimentoR"), rs.getString("resp.cpf"), rs.getString("resp.telefone"),
rs.getInt("resp.id_aluno"),rs.getString("resp.login"));
Aluno aluno = new Aluno(rs.getInt("a.id"), rs.getString("a.nome"),rs.getString("a.sexo"), rs.getString("data_nascimento"),
rs.getString("a.cpf"), endereco, rs.getString("a.telefone"),
rs.getString("a.login"), rs.getInt("a.id_turma"), turma, responsavel);
alunos.add(aluno);
}
} finally {
stmt.close();
//rs.close();
}
return alunos;
}
public Aluno visualizarDados(int id) throws AlunoNaoEncontradoException, SQLException {
String comp = " = " + id;
ArrayList<Aluno> alunos = this.visualizar(comp);
return alunos.get(0);
}
@Override
public boolean procurarLoginAluno(String login, String senha) throws SenhaInvalidaException, UsuarioNaoEncontradoException, SQLException {
PreparedStatement stmt = null;
ResultSet rs = null;
try{
String sql ="select count(*) as existe from aluno where login = ? and senha = ?";
stmt = this.conectar.prepareStatement(sql);
stmt.setString(1, login);
stmt.setString(2, senha);
rs = stmt.executeQuery();
rs.next();
if(rs.getInt("existe") == 0){
return false;
}else {
return true;
}
}finally{
}
}
}
Aluno aluno = (Aluno) request.getAttribute("UsuarioLogado");-> Are you sure this won’t come backnullthen giving aNullPointerExceptionin the<%=aluno.getId()%>"?– Victor Stafusa
I don’t know, I’m a beginner in the area. I’m trying to get the data of the logged-in user back on the screen.
– user3909158
And if there is no logged in user, what should happen?
– Victor Stafusa
In addition, declaring the encoding "
ISO-8859-1" at first, while declaring "utf-8" within the<head>is ask to have serious problems with accented characters.– Victor Stafusa
I just added the authentication Servlet
– user3909158
The error occurs as if it had null values within the attributes I try to rescue.
– user3909158
What’s in the methods
f.procurarLoginAluno(login, senha)andf.alunoProcurarNome(login)?– Victor Stafusa
In this case, within the repository?
– user3909158
Yes. How is the code of these methods?
– Victor Stafusa
added the repository code
– user3909158
Right, but the method
f.alunoProcurarNome(login)is not in the code you just entered. I suspect the problem is in this method.– Victor Stafusa
I can’t possibly identify the error.
– user3909158