Depois de alternar @ManagedBean para @Named: javax.el.PropertyNotFoundException: Destino inacessível, identificador 'pessoa' resolvido como nulo [duplicado]
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Identificar e resolver javax.el.PropertyNotFoundException: Target Unreachable 12 respostasEstou apenas testando esta página JSF, então não defino oaction
tributo @ no<h:commandButton/>
. Este é um formulário muito simples, com 3 caixas de entrada para Nome, Sobrenome e Email, e um botão chamado Salvar. Sempre que clico nesse botão, recebo este erro
javax.el.PropertyNotFoundException: /index.xhtml @19,106 value="#{person.firstName}": Target Unreachable, identifier 'person' resolved to null
mas se eu anotar meu JavaBean@ManagedBean
, o formulário passa bem, mas toda vez que volto a usar@Named
Bean, eu recebo esse erro novamente. Tentei algumas das sugestões que encontrei neste site, como reiniciar o servidor, verificar a presença dos getters, mas elas não ajudara
<?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"
xmlns:f="http://java.sun.com/jsf/core">
<h:head>
<meta charset="UTF-8" />
<title>Simple Form Created Using Facelets</title>
</h:head>
<h:body>
<h:messages/>
<h:form>
<h:panelGrid columns="2" columnClasses="rightColumn, leftColumn">
<h:outputLabel for="firstName" value="First Name:" />
<h:inputText id="firstName" value="#{person.firstName}"
label="First Name"/>
<h:outputLabel for="lastName" value="Last Name:" />
<h:inputText id="lastName" value="#{person.lastName}" label="Last Name"/>
<h:outputLabel for="email" value="Email:"/>
<h:inputText id="email" value="#{person.email}" label="Email" />
<h:panelGroup />
<h:commandButton value="Submit"/>
</h:panelGrid>
</h:form>
</h:body>
</html>
Esta é minha classe JavaBean
import javax.annotation.PostConstruct;
import javax.faces.bean.RequestScoped;
import javax.inject.Named;
@Named
@RequestScoped
public class Person {
private String firstName = "empty";
private String lastName = "empty";
private String email = "empty";
public void Person() {}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
Isto é oweb.xml
Arquivo
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" 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-app_3_1.xsd">
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Development</param-value>
</context-param>
<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>/faces/*</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>faces/index.xhtml</welcome-file>
</welcome-file-list>
</web-app>