Olá, pessoal!
Eu estava tentando clicar o link CommadLink para chamar outra pagina atráves do ManageBean, mas apareceu erros.
Mensagem de erro
javax.faces.el.MethodNotFoundException: javax.el.MethodNotFoundException: /paginas/aluno/menuAluno.xhtml @16,95 action="#{alunoBean.pagDadoAluno}": Method not found: Bean.AlunoBean@72fb92dc.pagDadoAluno()
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:92)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
at javax.faces.component.UICommand.broadcast(UICommand.java:315)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:662)
Caused by: javax.el.MethodNotFoundException: /paginas/aluno/menuAluno.xhtml @16,95 action="#{alunoBean.pagDadoAluno}": Method not found: Bean.AlunoBean@72fb92dc.pagDadoAluno()
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:109)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
... 32 moreDiz que o metodo não encontrado, não entendo nada… esse configuração e criar pelo NetBeans.
Veja os códigos que criei.
ManagedBean
@ManagedBean
@RequestScoped
public class AlunoBean {
private String pagDadoAluno = "/paginas/aluno/dadosAluno.xhtml";
private String pagLogout = "/index.xhtml";
private Usuario logado;
private Aluno aluno;
private HttpSession sessao;
private AlunoJpaController alunoController;
private Conexao conn;
/**
* Creates a new instance of AlunoBean
*/
public AlunoBean() {
FacesContext context = FacesContext.getCurrentInstance();
sessao = (HttpSession) context.getExternalContext().getSession(false);
logado = (Usuario) sessao.getAttribute("aluno");
System.out.println(logado);
conn = new Conexao();
}
public Usuario getLogado() {
return logado;
}
public Aluno getAluno() {
return aluno;
}
public void setAluno(Aluno aluno) {
this.aluno = aluno;
}
public String getPagDadoAluno() {
return pagDadoAluno;
}
public String getPagLogout() {
return pagLogout;
}
}Pagina Principal do Aluno - aluno_principal.xhtml
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html">
<h:body>
<ui:composition template="./../../templates/Modelo.xhtml">
<ui:define name="top">
<ui:include src="/paginas/aluno/menuAluno.xhtml"/>
</ui:define>
<ui:define name="content">
<h1>Bem vindo ao portal do Aluno</h1>
<a href="index.xhtml">Sair</a>
<h:outputLabel value="#{alunoBean.logado.nome}"/>
</ui:define>
</ui:composition>
</h:body>
</html>
Pagina Dados do Aluno - dadosAluno.xhtml
[code]
<h:body>
<ui:composition template="./../../templates/Modelo.xhtml">
<ui:define name="top">
<ui:include src="/paginas/aluno/menuAluno.xhtml"/>
</ui:define>
<ui:define name="content">
<h1>Pagina Dados Alunos</h1>
</ui:define>
</ui:composition>
</h:body>
menuAluno.xhtml - Menu do Aluno fica no Top.
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html">
<h:head>
</h:head>
<h:body>
<h:form>
<h:panelGrid columns="3">
<h:commandLink value="Portal principal" action="/paginas/aluno/aluno_principal.xhtml"/>
<h:commandLink value="Dados do Aluno" action="#{alunoBean.pagDadoAluno}"/>
</h:panelGrid>
</h:form>
</h:body>
</html>Modelo.xhtml - Template
[code]
<h:head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Facelets Template</title>
</h:head>
<h:body>
<div id="top" class="top">
<ui:insert name="top"/>
</div>
<div id="content" class="center_content">
<ui:insert name="content"/>
</div>
</h:body>
Espero que vcs dará um dica ou correção no codigo, obrigado!
Atenciosamente,
Jeison Pereira
