Well, I have a class that is almost all populated with Facebook data, but there are two missing attributes that have to be populated from data coming from a form.
Here is the form: central/cadastro.xhtml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:c="http://xmlns.jcp.org/jsp/jstl/core">
<h:body>
<h:graphicImage value="https://graph.facebook.com/${usuario.id}/picture" /> Olá, ${usuario.firstName} ${usuario.lastName}
<h:form id="formCadastro" prependId="false">
<h:panelGrid columns="2">
Login: <h:inputText label="Login" value="#{usuarioFacebook.userid}" />
Senha: <h:inputSecret label="Senha" value="#{usuarioFacebook.password}" />
<h:commandButton value="Salvar" action="#{usuarioFacebookDAO.persist(usuario)}"/>
</h:panelGrid>
</h:form>
</h:body>
</html>
This form is displayed by the method ModelAndView of spring , passing an object of type UsuarioFacebook with the name usuario :
@RequestMapping("/loginfbresponse")
public ModelAndView logarComFacebook(String code) throws MalformedURLException, IOException{
UsuarioFacebook userFB = loginFacebook.obterUsuarioFacebook(code);
System.out.println("Buscando email " + userFB.getEmail() + " no banco...");
UsuarioFacebook userFBDB = usuarioFacebookDAO.find(userFB.getId());
if(userFBDB == null){
if(userFB.getVerified()){
//usuarioFacebookDAO.persist(userFB);
System.out.println("Usuário " + userFB.getEmail() + " foi direcionado para cadastro.");
ModelAndView mv = new ModelAndView("central/cadastro");
mv.addObject("usuario", userFB);
return mv;
} else {
System.out.println("Usuário " + userFB.getEmail() + " não é uma conta ativa.");
ModelAndView mv = new ModelAndView("central/containvalida");
return mv;
}
} else {
System.out.println("Usuário " + userFB.getEmail() + " foi encontrado!");
ModelAndView mv = new ModelAndView("central/home");
mv.addObject("usuario", userFBDB);
return mv;
}
}
return is a java.lang.NullPointerException because commandButton does not pass the usuario object to the persist() method, why?
Both UsuarioFacebookDAO and UsuarioFacebook are written as ManagedBean .