Olá estou com erro ao logar com sucesso no meu formulário de login.
Conferindo no debug, parece que o erro ocorre ao passar pelas seguintes linhas do LoginController:
usuarioLogado.setUsuario(usuario);
result.redirectTo(ProdutoController.class).lista();Segue a mensagem de erro com maiores detalhes e o fonte:
HTTP Status 500 - net.vidageek.mirror.exception.ReflectionProviderException: Could not invoke method autentica
type Exception report
message net.vidageek.mirror.exception.ReflectionProviderException: Could not invoke method autentica
description The server encountered an internal error that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: net.vidageek.mirror.exception.ReflectionProviderException: Could not invoke method autentica
br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:120)
root cause
net.vidageek.mirror.exception.ReflectionProviderException: Could not invoke method autentica
net.vidageek.mirror.provider.java.PureJavaMethodReflectionProvider.invoke(PureJavaMethodReflectionProvider.java:45)
net.vidageek.mirror.invoke.MethodHandlerByMethod.withArgs(MethodHandlerByMethod.java:54)
br.com.caelum.vraptor.observer.ExecuteMethod.execute(ExecuteMethod.java:87)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:606)
org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:78)
br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:75)
br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:98)
br.com.caelum.vraptor.interceptor.FlashInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
br.com.caelum.vraptor.core.DefaultInterceptorStack.start(DefaultInterceptorStack.java:93)
br.com.caelum.vraptor.core.DefaultInterceptorStack$Proxy$_$$_WeldClientProxy.start(Unknown Source)
br.com.caelum.vraptor.observer.RequestHandlerObserver.handle(RequestHandlerObserver.java:86)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:606)
org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:116)
root cause
java.lang.NullPointerException
br.com.caelum.vraptor.controller.LoginController.autentica(LoginController.java:51)
br.com.caelum.vraptor.controller.LoginController$Proxy$_$$_WeldClientProxy.autentica(Unknown Source)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:606)
net.vidageek.mirror.provider.java.PureJavaMethodReflectionProvider.invoke(PureJavaMethodReflectionProvider.java:38)
net.vidageek.mirror.invoke.MethodHandlerByMethod.withArgs(MethodHandlerByMethod.java:54)
br.com.caelum.vraptor.observer.ExecuteMethod.execute(ExecuteMethod.java:87)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:606)
org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:78)
br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:75)
br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:98)
br.com.caelum.vraptor.interceptor.FlashInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)
br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:58)
br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:83)
br.com.caelum.vraptor.core.DefaultInterceptorStack.start(DefaultInterceptorStack.java:93)
br.com.caelum.vraptor.core.DefaultInterceptorStack$Proxy$_$$_WeldClientProxy.start(Unknown Source)
br.com.caelum.vraptor.observer.RequestHandlerObserver.handle(RequestHandlerObserver.java:86)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:606)
org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)
org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)
org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)
org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)
br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:116)Minha LoginController:
package br.com.caelum.vraptor.controller;
@Controller
public class LoginController {
private final Result result;
private final Validator validator;
private UsuarioDao usuarioDao;
private UsuarioLogado usuarioLogado;
@Inject
public LoginController(Result result, Validator validator, UsuarioDao usuarioDao, UsuarioLogado usuarioLogado) {
this.result = result;
this.validator = validator;
this.usuarioDao = usuarioDao;
usuarioLogado = usuarioLogado;
}
@Deprecated
LoginController() {
this(null, null, null,null);
}
@Get
public void formulario(){
}
@Post
public void autentica(Usuario usuario){
if (!usuarioDao.existe(usuario)) {
validator.add(new I18nMessage("login", "login.invalido"));
validator.onErrorUsePageOf(this).formulario();
}
usuarioLogado.setUsuario(usuario);
result.redirectTo(ProdutoController.class).lista();
}
}Meu login/formulario.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<link rel="stylesheet" type="text/css" href="../bootstrap/css/bootstrap.css">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Faça seu login</title>
</head>
<body>
<div class="container">
<form class="form-signin" action="<c:url value='/login/autentica'/>" method="post">
<h2 class="form-signin-heading">Faça login para acessar o VRaptor-Produtos</h2>
<input type="text" class="form-control" name="usuario.nome" placeholder="Nome"/>
<input type="password" class="form-control" name="usuario.senha" placeholder="Senha"/>
<button class="btn btn-lg btn-primary btn-block" type="submit">Login</button>
</form>
<c:if test="${not empty errors}">
<div class="alert alert-danger">
<c:forEach items="${errors}" var="error">
${error.category} : ${error.message}<br />
</c:forEach>
</div>
</c:if>
</div>
</body>
</html>Minha UsuarioLogado:
package br.com.caelum.vraptor.model;
import java.io.Serializable;
import javax.enterprise.context.SessionScoped;
import javax.inject.Named;
public class UsuarioLogado implements Serializable{
@SessionScoped
@Named
private Usuario usuario;
public Usuario getUsuario() {
return usuario;
}
public void setUsuario(Usuario usuario) {
this.usuario = usuario;
}
}Meu ProdutoController:
package br.com.caelum.vraptor.controller;
@Controller
public class ProdutoController {
private final Result result;
private final ProdutoDao dao;
private final Validator validator;
@Inject
public ProdutoController(Result result, ProdutoDao dao, Validator validator) {
this.result = result;
this.dao = dao;
this.validator = validator;
}
@Deprecated
ProdutoController() {
this(null,null,null); //para uso do CDI
}
@Path("/")
public void inicio(){
}
@Get
public void lista(){
result.include("listagem", dao.lista());
}
@Get
public void listaXML(){
result.use(Results.xml()).from(dao.lista()).serialize();
}
@Get
public void sobre(){
}
@Get
public void formulario(){
}
@Post
public void adiciona(@Valid Produto produto){
/*
validator.check(produto.getQuantidade() > 0,
new I18nMessage("erro","produto.quantidade.negativa"));
*/
validator.onErrorUsePageOf(this).formulario();
dao.adiciona(produto);
result.include("mensagem", "Produto cadastrado com sucesso");
result.redirectTo(this).lista();
}
@Delete
public void remove (Produto produto){
dao.remove(produto);
result.redirectTo(this).lista();
}
}Meu produto/lista.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<link rel="stylesheet" type="text/css" href="../bootstrap/css/bootstrap.css">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<div class="container">
<h1>Lista de produtos do ${usuarioLogado.usuario.nome}</h1>
<table class="table table-stripped table-over table-bordered">
<thead>
<tr>
<th>Nome</th>
<th>Valor</th>
<th>Quantidade</th>
</tr>
</thead>
<tbody>
<c:forEach items="${listagem}" var="produto">
<tr>
<td>${produto.nome}</td>
<td>${produto.valor}</td>
<td>${produto.quantidade}</td>
<td>
<form action="/produto/remove">
<input type="hidden" name="produto.id" value="${produto.id}">
<button type="submit" name="_method" value="DELETE">Remover</button>
</form>
</td>
<td><a href="<c:url value='/produto/remove?produto.id=${produto.id}' />">Remover</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
<c:if test="${not empty mensagem}">
<div class="alert alert-success">${mensagem}</div>
</c:if>
<a href="<c:url value='/produto/formulario'/>"> adicione mais produtos</a></br>
<a href="<c:url value='/produto/listaXML' />"> veja listaXML </a>
</body>
</html>Desde já agradeço toda ajuda.
