Olá pessoa,
estou tentando fazer um CRUD simples, cadastro de usuario com id, nome, senha e email.
Fiz um DAO e algumas classes pra persistir no banco, testei e deu tudo certo.
Fiz o front com JSF e uma classe Bean para tentar interligar e persistir no banco, mas nao consigo rodar de jeito nenhum, apresenta o seguinte erro:
Caused by: javax.el.PropertyNotFoundException: /cadastro.xhtml @23,53 value="#{usuarioBean.usuario.nome}": Target Unreachable, identifier 'usuarioBean' resolved to null
Minha classe Bean é a seguinte:
@Named("usuarioBean")
public class UsuarioBean implements Serializable {
private static final long serialVersionUID = 1L;
private Usuario usuario = new Usuario();
private Dao<Usuario> dao = new Dao<Usuario>();
public String salvar() {
dao.salvar(usuario);
return "";
}
public Usuario getUsuario() {
return usuario;
}
public void setUsuario(Usuario usuario) {
this.usuario = usuario;
}
public Dao<Usuario> getDao() {
return dao;
}
public void setDao(Dao<Usuario> dao) {
this.dao = dao;
}
}
Meu front com XHTML é esse:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
xmlns:p="http://primefaces.org/ui">
<h:head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Cadastro</title>
</h:head>
<h:body>
<h1>Tela de Cadastro</h1>
<h:form id="formUsuario">
<h:outputLabel value="Nome: "/>
<h:inputText value="#{usuarioBean.usuario.nome}"/>
<br/>
<h:outputLabel value="E-mail: "/>
<h:inputText value="#{usuarioBean.usuario.email}"/>
<br/>
<h:outputLabel value="Senha: "/>
<h:inputText value="#{usuarioBean.usuario.senha}"/>
<br/>
<h:commandButton value="Salvar" action="#{usuarioBean.salvar}"/>
</h:form>
</h:body>
</html>
se alguem puder me dar uma luz agradeço, estou a mais de um dia tentando resolver isso.
Vc sabe dizer qual a versão do JSF que está usando? 1.2 ou 2?
Bom dia Lucas, primeiramente obrigado por se dispor a ajudar.
Indo em Propriedades → Project Facets. lá mostra JSF 2.2
Em qual servidor vc está rodando esse sistema? Vc tem algum faces-config.xml no projeto?
Estou rodando no WildFly 20.
Tenho sim, vou te mandar:
<?xml version="1.0" encoding="UTF-8"?>
<faces-config xmlns="http://xmlns.jcp.org/xml/ns/javaee_7.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd"
version="2.2">
</faces-config>
O CDI está devidamente configurado no projeto?
Lucas, não sei lhe responder com certeza. a configuração do CDI no projeto se da através de dependencias?? (estou suando maven) Se sim, saberia me dizer quais? no meu pom.xml atualmente estão só essas abaixo (ja coloquei outras e tirei fazendo testes que nao funcionaram):
<dependencies>
<!-- Dependencia Testes JUnit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- Dependencia Conexao Banco MySql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.28</version>
</dependency>
<!-- Dependencia Hibernate -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.6.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.2.6.Final</version>
</dependency>
<!-- Dependencia PrimeFaces -->
<dependency>
<groupId>org.primefaces</groupId>
<artifactId>primefaces</artifactId>
<version>11.0.0</version>
</dependency>
<!-- Dependencia Para o Bean -->
</dependencies>
Tem tempo que usei o CDI, mas lembro que era preciso ter um arquivo beans.xml no projeto para que ele funcione.
A questão é que, como o managedBean está usando o @Named, o CDI tem que está funcionando corretamente.
Tentei seguir as instruções nos links, agora está dando outros erros, =(
Eu segui esse tutorial do DevMedia, eu fiz o seguinte:
Adicionei a dependencia abaixo no meu pom.xml
<dependency>
<groupId>org.jboss.weld.servlet</groupId>
<artifactId>weld-servlet</artifactId>
<version>2.4.1.Final</version>
</dependency>
Depois alterei o conteudo do arquivo beans.xml para o abaixo:
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
version="1.2" bean-discovery-mode="all">
</beans>
O caminho do meu bean é: src/main/webapp/WEB-INF/beans.xml
Depois dessas alteraçoes fiz o seguinte:
botao direito no projeto ->maven → update project.
botao direito no projeto → refresh
aba project → clean
botao direito no servidor wildfly 20 → clean
publish (servidor)
startei o servidor
Foi startado normal, sem erro no console, porem quando eu abri o navegador e tentei acessar o endereço da pagina xhtml, nao acessa, da o erro abaixo:
javax.servlet.ServletException
at javax.faces.api@3.0.0.SP04//javax.faces.webapp.FacesServlet.executeLifecyle(FacesServlet.java:725)
at javax.faces.api@3.0.0.SP04//javax.faces.webapp.FacesServlet.service(FacesServlet.java:451)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
at io.opentracing.contrib.opentracing-jaxrs2//io.opentracing.contrib.jaxrs2.server.SpanFinishingFilter.doFilter(SpanFinishingFilter.java:52)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow@20.0.1.Final//org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.core@2.1.3.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.core@2.1.3.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.core@2.1.3.Final//io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.core@2.1.3.Final//io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.core@2.1.3.Final//io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.core@2.1.3.Final//io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.core@2.1.3.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow@20.0.1.Final//org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.core@2.1.3.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow@20.0.1.Final//org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
at io.undertow.core@2.1.3.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at org.wildfly.extension.undertow@20.0.1.Final//org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
at org.wildfly.extension.undertow@20.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
at org.wildfly.extension.undertow@20.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
at org.wildfly.extension.undertow@20.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
at org.wildfly.extension.undertow@20.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
at org.wildfly.extension.undertow@20.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78)
at io.undertow.servlet@2.1.3.Final//io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99)
at io.undertow.core@2.1.3.Final//io.undertow.server.Connectors.executeRootHandler(Connectors.java:370)
at io.undertow.core@2.1.3.Final//io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)
at org.jboss.threads@2.3.3.Final//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads@2.3.3.Final//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
at org.jboss.threads@2.3.3.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
at org.jboss.threads@2.3.3.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
at java.base/java.lang.Thread.run(Thread.java:830)
Caused by: java.lang.NullPointerException
at deployment.teste_sefaz.war//br.com.teste_sefaz.util.HibernateUtil.getEntityManager(HibernateUtil.java:27)
at deployment.teste_sefaz.war//br.com.teste_sefaz.dao.Dao.<init>(Dao.java:12)
at deployment.teste_sefaz.war//br.com.teste_sefaz.UsuarioBean.<init>(UsuarioBean.java:19)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.injection.ConstructorInjectionPoint.newInstance(ConstructorInjectionPoint.java:119)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.injection.ConstructorInjectionPoint.invokeAroundConstructCallbacks(ConstructorInjectionPoint.java:92)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.injection.ConstructorInjectionPoint.newInstance(ConstructorInjectionPoint.java:78)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.injection.producer.AbstractInstantiator.newInstance(AbstractInstantiator.java:28)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.injection.producer.BasicInjectionTarget.produce(BasicInjectionTarget.java:112)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.injection.producer.BeanInjectionTarget.produce(BeanInjectionTarget.java:186)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.bean.ManagedBean.create(ManagedBean.java:160)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.contexts.unbound.DependentContextImpl.get(DependentContextImpl.java:64)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.bean.ContextualInstanceStrategy$DefaultContextualInstanceStrategy.get(ContextualInstanceStrategy.java:100)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.bean.ContextualInstance.get(ContextualInstance.java:50)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:694)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.module.web.el.AbstractWeldELResolver.lookup(AbstractWeldELResolver.java:120)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.module.web.el.AbstractWeldELResolver.getValue(AbstractWeldELResolver.java:90)
at org.jboss.as.jsf-injection//org.jboss.as.jsf.injection.weld.ForwardingELResolver.getValue(ForwardingELResolver.java:46)
at javax.el.api@2.0.0.Final//javax.el.CompositeELResolver.getValue(CompositeELResolver.java:136)
at com.sun.jsf-impl@2.3.9.SP11//com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:156)
at com.sun.jsf-impl@2.3.9.SP11//com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:184)
at org.glassfish.jakarta.el@3.0.3.jbossorg-2//com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:91)
at org.glassfish.jakarta.el@3.0.3.jbossorg-2//com.sun.el.parser.AstValue.getBase(AstValue.java:125)
at org.glassfish.jakarta.el@3.0.3.jbossorg-2//com.sun.el.parser.AstValue.getValue(AstValue.java:173)
at org.glassfish.jakarta.el@3.0.3.jbossorg-2//com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:183)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.module.web.el.WeldValueExpression.getValue(WeldValueExpression.java:50)
at org.jboss.weld.core@3.1.4.Final//org.jboss.weld.module.web.el.WeldValueExpression.getValue(WeldValueExpression.java:50)
at com.sun.jsf-impl@2.3.9.SP11//com.sun.faces.facelets.el.ELText$ELTextVariable.toString(ELText.java:205)
at com.sun.jsf-impl@2.3.9.SP11//com.sun.faces.facelets.compiler.AttributeInstruction.write(AttributeInstruction.java:48)
at com.sun.jsf-impl@2.3.9.SP11//com.sun.faces.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.java:41)
at com.sun.jsf-impl@2.3.9.SP11//com.sun.faces.facelets.compiler.UILeaf.encodeAll(UILeaf.java:169)
at javax.faces.api@3.0.0.SP04//javax.faces.render.Renderer.encodeChildren(Renderer.java:152)
at javax.faces.api@3.0.0.SP04//javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:566)
at javax.faces.api@3.0.0.SP04//javax.faces.component.UIComponent.encodeAll(UIComponent.java:1647)
at javax.faces.api@3.0.0.SP04//javax.faces.component.UIComponent.encodeAll(UIComponent.java:1650)
at javax.faces.api@3.0.0.SP04//javax.faces.component.UIComponent.encodeAll(UIComponent.java:1650)
at com.sun.jsf-impl@2.3.9.SP11//com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:468)
at com.sun.jsf-impl@2.3.9.SP11//com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:170)
at javax.faces.api@3.0.0.SP04//javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:132)
at javax.faces.api@3.0.0.SP04//javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:132)
at com.sun.jsf-impl@2.3.9.SP11//com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:102)
at com.sun.jsf-impl@2.3.9.SP11//com.sun.faces.lifecycle.Phase.doPhase(Phase.java:76)
at com.sun.jsf-impl@2.3.9.SP11//com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:199)
at javax.faces.api@3.0.0.SP04//javax.faces.webapp.FacesServlet.executeLifecyle(FacesServlet.java:708)
... 49 more
Como vc está usando um application server, vc não precisa incluir a dependência do weld, pq ela já vem no proprio wildfly.
então não preciso adicionar nenhuma dependencia extra para configurar o CDI?
Não precisa, pq o wildfly jah possui a implementação das especificações do javaEE.
Não lembro direito, mas talvez seja preciso adicionar a dependência no projeto como provided apenas (pq o servidor que irá prover).
Lucas, muito obrigado pelo suporte, depois de muita luta, deu certo. rs.
Que blz! Faltava apenas configurar o CDI msm ou vc precisou fazer mais alguma coisa?
Foi “apenas” configurar o CDI… 
1 curtida
