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jsfhttp-redirectmessage

Why my JSF application doesn't show the context message?

I am working with Prime Faces and I would like user start in a index page, press a button for call a function (registrarUsuario) for reload the index page and show the context message. My problem is my application doesn't show the message. This is my code:

index.xhtml:

<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://xmlns.jcp.org/jsf/html"
      xmlns:p="http://primefaces.org/ui"
      xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
      xmlns:f="http://xmlns.jcp.org/jsf/core"
      xmlns:b="http://bootsfaces.net/ui">
...
<h:form>
    <b:commandButton action = "#{registroUsuario.registrarUsuario}" value = "call function"/>
</h:form>
....

RegistroUsuario.java:

public void registrarUsuario() throws IOException, Exception {
    try {
        //another code
        FacesMessage message = new FacesMessage(":D", "message");
        FacesContext context = FacesContext.getCurrentInstance();
        context.addMessage(null, message);
    } catch (Exception e) {
        FacesMessage message = new FacesMessage("Falla", e.toString());
        FacesContext context = FacesContext.getCurrentInstance();
        context.addMessage(null, message);
    }finally{
        FacesContext.getCurrentInstance().getExternalContext().redirect("index.xhtml");
    }

}

Thank you!

Solution

  • This happens because Primefaces does not preserve Messages through a redirect.

    One possibility to cope with this is to add a filter which passes all unrendered messages to after the redirect. This answer provides a solution: Show success message and then redirect to another page after a timeout using PageFlow