Boa tarde,
No meu caso a mensagem global não está aparecendo quando digito dados incorretos (usuário e senha inválidos).
Segue minha view:
<?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://xmlns.jcp.org/jsf/html"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:p="http://primefaces.org/ui"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<ui:composition template="_template.xhtml">
<ui:define name="titulo">
Login
</ui:define>
<ui:define name="conteudo">
<p:messages globalOnly="true"/>
<h:form id="login">
<p:fieldset legend="Login">
<h:panelGrid columns="3">
<p:outputLabel value="Email:" for="email" />
<p:inputText id="email" value="#{loginBean.usuario.email}" required="true" >
<f:passThroughAttribute name="type" value="email"/>
</p:inputText>
<p:messages for="email" id="messageEmail" />
<p:outputLabel value="Senha:" for="senha" />
<p:password id="senha" value="#{loginBean.usuario.senha}" feedback="true" required="true"/>
<p:messages for="senha" id="messagePassword"/>
<p:commandButton value="Login" action="#{loginBean.efetuarLogin}" update="@form" process="@form"/>
</h:panelGrid>
</p:fieldset>
</h:form>
</ui:define>
</ui:composition>
</html>
