Srs, bom dia!
Quando eu pressiono o botão gravar o console apresenta oseguinte erro:
Fev 27, 2015 12:19:28 PM org.apache.catalina.core.StandardWrapperValve invoke
GRAVE: Servlet.service() for servlet [Faces Servlet] in context with path [/jsf-livraria] threw exception [javax.el.PropertyNotFoundException: /livro.xhtml @26,81 action="#{livroBean.gravar}": Target Unreachable, identifier 'livroBean' resolved to null] with root cause
javax.el.PropertyNotFoundException: /livro.xhtml @26,81 action="#{livroBean.gravar}": Target Unreachable, identifier 'livroBean' resolved to null
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:107)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:101)
at javax.faces.component.UICommand.broadcast(UICommand.java:315)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:791)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1256)
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.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
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)Segue o meu fonte:
package br.com.caelum.livraria.bean;
import javax.faces.bean.ManagedBean;
@ManagedBean
public class LivroBean {
public void gravar(){
System.out.println("Gravando. . .");
}
}<?xml version="1.0" encoding="UTF-8" ?>
<!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:h="http://java.sun.com/jsf/html">
<h:body>
<h:form>
<fieldset>
<legend>Dados do Livro</legend>
<h:panelGrid columns="2">
<!-- <h:outputLabel value="Titulo:" for="titulo" />
<h:inputText id="titulo" />
<h:outputLabel value="ISBN:" for="isbn" />
<h:inputText id="isbn" />
<h:outputLabel value="Preço:" for="preco" />
<h:inputText id="preco" />
<h:outputLabel value="Data de Lançamento:" for="dataLancamento" />
<h:inputText id="dataLancamento" />-->
<h:commandButton value="Salvar" action="#{livroBean.gravar}" />
</h:panelGrid>
</fieldset>
</h:form>
</h:body>
</html>Este é mensagem de erro apresentada na pag web
HTTP Status 500 - javax.el.PropertyNotFoundException: /livro.xhtml @26,81 action="#{livroBean.gravar}": Target Unreachable, identifier 'livroBean' resolved to nullSe alguém puder ajudar, eu agradeço.
