[RESOLVIDO] Problemas com JSF

Boa Noite Galera…
To estudando uma apostila de JSF aqui da Algaworks, mais durante a complicação de uma página aqui me deparei com um erro que não estou conseguindo encontrar, vou postar as seguintes classes que o arquivo JSP que criei, e também o erro…

Classe Contato

package com.algaworks.dwjsf.dominio;

public class Contato {
	
	private String nome;
	private String sexo;
	private String endereco;
	
	
	public String getNome() {
		return nome;
	}
	public void setNome(String nome) {
		this.nome = nome;
	}
	public String getEndereco() {
		return endereco;
	}
	public void setEndereco(String endereco) {
		this.endereco = endereco;
	}
	public String getSexo() {
		return sexo;
	}
	public void setSexo(String sexo) {
		this.sexo = sexo;
	}
	
	

}

Classe AgendaContatoBean

package com.algaworks.dwjsf.visao;

import java.util.ArrayList;
import java.util.List;

import javax.faces.event.ActionEvent;

import com.algaworks.dwjsf.dominio.Contato;

public class AgendaContatoBean {
	
	private List&lt;Contato&gt; contatos;
	private Contato contato;
	
	public AgendaContatoBean() {
		this.setContatos(new ArrayList&lt;Contato&gt;());
		this.setContato(new Contato());
		}
	
	public void incluirContato(ActionEvent event) {
		this.getContatos().add(this.getContato());
		this.setContato(new Contato());
		}

	public List&lt;Contato&gt; getContatos() {
		return contatos;
	}
	
	public void setContatos(List&lt;Contato&gt; contatos) {
		this.contatos = contatos;
	}
	
	public Contato getContato() {
		return contato;
	}
	public void setContato(Contato contato) {
		this.contato = contato;
	}
	
}

Arquivo JSP

&lt;%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%&gt;


&lt;%@ taglib prefix="f"  uri="http://java.sun.com/jsf/core"%&gt;
&lt;%@ taglib prefix="h"  uri="http://java.sun.com/jsf/html"%&gt;


&lt;!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"&gt;
&lt;html&gt;
&lt;f:view&gt;
&lt;head&gt;
&lt;title&gt;Agenda de Contatos&lt;/title&gt;
   &lt;/head&gt;
       &lt;body&gt;
       
         &lt;h:form&gt;
               &lt;h:outputText value="Nome: "/&gt;          
               &lt;h:inputText value="#{agendaContatoBean.contato.nome }"/&gt;
                                                       
               <br/>
               
               &lt;h:outputText value="Endereço: "/&gt;
               &lt;h:inputText value="#{agendaContatoBean.contato.endereco }" /&gt;
               
               <br/>
               
               &lt;h:outputText value="Sexo: " /&gt;
               &lt;h:inputText value="#{agendaContatoBean.contato.sexo }"/&gt;
               
               <br/>
               
               &lt;h:commandButton 
                       actionListener="#{agendaContatoBean.incluirContato}"
                        value="Incluir" /&gt;
                        
               <br/><br/>
               
               &lt;h:dataTable var="obj" value="#{agendaContatoBean.contatos }"
                           border="1" width="100%"&gt;
                
                &lt;h:column&gt;
                       &lt;f:facet name="header"&gt;
                            &lt;h:outputText value="Nome"/&gt; 
                       &lt;/f:facet&gt; 
                        &lt;h:outputText value="#{obj.nome}"/&gt;
                &lt;/h:column&gt;
                
                &lt;h:column&gt;
                       &lt;f:facet name="header"&gt;
                            &lt;h:outputText value="Endereço"/&gt; 
                       &lt;/f:facet&gt; 
                       &lt;h:outputText value="#{obj.endereco}"/&gt;
                &lt;/h:column&gt;
                
                &lt;h:column&gt;
                       &lt;f:facet name="header"&gt;
                            &lt;h:outputText value="Sexo"/&gt; 
                       &lt;/f:facet&gt; 
                        &lt;h:outputText value="#{obj.sexo}"/&gt;
                &lt;/h:column&gt;          
               
               &lt;/h:dataTable&gt;                   
         &lt;/h:form&gt;

       &lt;/body&gt;
&lt;/f:view&gt;       
&lt;/html&gt;

ERRO =[

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: /agendaContato.jsp(15,18) '#{agendaContatoBean.contato.nome }' Target Unreachable, identifier 'agendaContatoBean' resolved to null
	javax.faces.webapp.FacesServlet.service(FacesServlet.java:422)

root cause

org.apache.jasper.el.JspPropertyNotFoundException: /agendaContato.jsp(20,15) '#{agendaContatoBean.contato.nome }' Target Unreachable, identifier 'agendaContatoBean' resolved to null
	org.apache.jasper.el.JspValueExpression.getType(JspValueExpression.java:61)
	com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:95)
	javax.faces.component.UIInput.getConvertedValue(UIInput.java:1030)
	javax.faces.component.UIInput.validate(UIInput.java:960)
	javax.faces.component.UIInput.executeValidate(UIInput.java:1233)
	javax.faces.component.UIInput.processValidators(UIInput.java:698)
	javax.faces.component.UIForm.processValidators(UIForm.java:253)
	javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
	javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1172)
	com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
	com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	javax.faces.webapp.FacesServlet.service(FacesServlet.java:409)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.16 logs.
Apache Tomcat/6.0.16

3 Respostas

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