Boa noite gente, estou fazendo o curso de JSF e estou com essa mensagem de erro como mencionei no título, alguém poderia me ajudar?
Erro:
javax.el.PropertyNotFoundException: /index.xhtml @18,59 value="#{livroBean.titulo}": Target Unreachable, identifier 'livroBean' resolved to null
at com.sun.faces.facelets.el.TagValueExpression.getType(TagValueExpression.java:100)
at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:95)
at javax.faces.component.UIInput.getConvertedValue(UIInput.java:1046)
at javax.faces.component.UIInput.validate(UIInput.java:976)
at javax.faces.component.UIInput.executeValidate(UIInput.java:1249)
at javax.faces.component.UIInput.processValidators(UIInput.java:712)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1258)
at javax.faces.component.UIForm.processValidators(UIForm.java:253)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1258)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1258)
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1195)
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:440)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:943)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: javax.el.PropertyNotFoundException: Target Unreachable, identifier 'livroBean' resolved to null
at com.sun.el.parser.AstValue.getTarget(AstValue.java:84)
at com.sun.el.parser.AstValue.getType(AstValue.java:69)
at com.sun.el.ValueExpressionImpl.getType(ValueExpressionImpl.java:194)
at com.sun.faces.facelets.el.TagValueExpression.getType(TagValueExpression.java:98)Minha página:
<!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:head>
<title>JSF 2.0 Hello World</title>
</h:head>
<h:body>
<h1>Novo Livro</h1>
<h:form>
<fieldset>
<legend>Dados do Livro</legend>
<h:panelGrid columns="2">
<h:outputLabel value="Titulo:" for="titulo" />
<h:inputText id="titulo" value="#{livroBean.titulo}"/>
<h:outputLabel value="ISBN:" for="isbn" />
<h:inputText id="isbn" value="#{livroBean.isbn}"/>
<h:outputLabel value="Preço:" for="preco" />
<h:inputText id="preco" value="#{livroBean.preco}"/>
<h:outputLabel value="Data de Lançamento:" for="dataLancamento" />
<h:inputText id="dataLancamento" value="#{livroBean.dataLancamento}"/>
<h:commandButton value="Gravar" action="#{livroBean.gravar}"/>
</h:panelGrid>
</fieldset>
</h:form>
</h:body>
</html>Minha classe:
import javax.faces.bean.ManagedBean;
@ManagedBean
public class LivroBean {
private String titulo;
private String isbn;
private double preco;
private String dataLancamento;
public void gravar(){
System.out.println("Gravando livro ");
}
public String getTitulo() {
return titulo;
}
public void setTitulo(String titulo) {
this.titulo = titulo;
}
public String getIsbn() {
return isbn;
}
public void setIsbn(String isbn) {
this.isbn = isbn;
}
public double getPreco() {
return preco;
}
public void setPreco(double preco) {
this.preco = preco;
}
public String getDataLancamento() {
return dataLancamento;
}
public void setDataLancamento(String dataLancamento) {
this.dataLancamento = dataLancamento;
}
}Web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.xhtml</url-pattern>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>faces/index.xhtml</welcome-file>
</welcome-file-list>
</web-app>faces-config.xml
<faces-config
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/web-facesconfig_2_2.xsd"
version="2.2">
</faces-config>Obs: Achei estranho, pois quando digito o nome do bean na página, o auto complete acha o bean, por isso não estou entendendo o erro.
Obrigado!
