Um erro ocorreu ao realizar a injeção de recurso no bean gerenciado paisControler

Guilherme Costa Lopes · Março 21, 2017

Ao tentar iniciar uma página do sistema mostra este erro.
Vou colocar os códigos:
DAO

package br.com.netsoft.desif.dao.endereco;
import java.io.Serializable;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import br.com.netsoft.desif.model.endereco.PaisEntity;
public class PaisDao implements Serializable {
private static final long serialVersionUID = 1402488530698938353L;
final private String hql = " p FROM PaisEntity p ";
EntityManager em;
public List<PaisEntity> listarPaises() {
StringBuilder hqlSelect = new StringBuilder(hql);
final String query = "SELECT " + hqlSelect;
Query querySelect = em.createQuery(query);
@SuppressWarnings("unchecked")
List<PaisEntity> resultList = querySelect.getResultList();
return resultList;
}
}

ENTITY

package br.com.netsoft.desif.model.endereco;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.SequenceGenerator;
public class PaisEntity implements Serializable {
private static final long serialVersionUID = 7784827196506672790L;
private Long id;
private String descricao;
@Id
@Column(name = "pai_id")
@SequenceGenerator(name = "enderecos.end_pais_pai_id_seq", sequenceName = "enderecos.end_pais_pai_id_seq", allocationSize = 1)
@GeneratedValue(generator = "enderecos.end_pais_pai_id_seq", strategy = GenerationType.SEQUENCE)
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@Column(name = "pai_descricao")
public String getDescricao() {
return descricao;
}
public void setDescricao(String descricao) {
this.descricao = descricao;
}
}

CONTROLLER

package br.com.netsoft.desif.controler.endereco;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.enterprise.context.RequestScoped;
import javax.faces.bean.ManagedBean;
import br.com.netsoft.desif.dao.endereco.PaisDao;
import br.com.netsoft.desif.model.endereco.PaisEntity;
@ManagedBean(name = "paisControler")
@RequestScoped
public class PaisControler extends PaisEntity {
private static final long serialVersionUID = -8396738159447021720L;
private List<PaisEntity> paises;
private PaisDao paisDao;
public List<PaisEntity> getPaises() {
if (paises == null) {
return new ArrayList<PaisEntity>();
}
return paises;
}
public void setPaises(List<PaisEntity> paises) {
this.paises = paises;
}
@PostConstruct
public void init() {
System.out.println("Página inicial de países.");
@SuppressWarnings("unused")
List<PaisEntity> paisesBusca = paisDao.listarPaises();
ArrayList<PaisEntity> paises = (ArrayList<PaisEntity>) paisDao.listarPaises();
for (Iterator<?> iterator = paises.iterator(); iterator.hasNext();) {
PaisEntity pais = (PaisEntity) iterator.next();
pais.setId(pais.getId());
pais.setDescricao(pais.getDescricao());
paises.add(pais);
}
this.setPaises(paises);
}
public String getMensagem() {
return "Teste";
}
}

VISÃO

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html">
<h:head>
<title>Hello JSF!</title>
</h:head>
<h:body>
#{paisControler.mensagem}
<h:dataTable var="pais" value="#{paisControler.paises}">
<h:column headerText="Id">
<h:outputText value="#{pais.id}" />
</h:column>
<h:column headerText="Year">
<h:outputText value="#{pais.descricao}" />
</h:column>
</h:dataTable>
</h:body>
</html>

Erro:

mar 21, 2017 8:08:40 AM com.sun.faces.application.view.FaceletViewHandlingStrategy handleRenderException
GRAVE: Error Rendering View[/public/index.xhtml]
javax.el.ELException: /public/index.xhtml: Um erro ocorreu ao realizar a injeção de recurso no bean gerenciado paisControler
at com.sun.faces.facelets.compiler.TextInstruction.write(TextInstruction.java:90)
at com.sun.faces.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.java:82)
at com.sun.faces.facelets.compiler.UILeaf.encodeAll(UILeaf.java:183)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:443)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:341)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1441)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Caused by: com.sun.faces.mgbean.ManagedBeanCreationException: Um erro ocorreu ao realizar a injeção de recurso no bean gerenciado paisControler
at com.sun.faces.mgbean.BeanBuilder.invokePostConstruct(BeanBuilder.java:227)
at com.sun.faces.mgbean.BeanBuilder.build(BeanBuilder.java:103)
at com.sun.faces.mgbean.BeanManager.createAndPush(BeanManager.java:409)
at com.sun.faces.mgbean.BeanManager.create(BeanManager.java:269)
at com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:244)
at com.sun.faces.el.ManagedBeanELResolv

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Um erro ocorreu ao realizar a injeção de recurso no bean gerenciado paisControler

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