Primefaces p:messages does not display
Question
Hi I have problem with display p:messages I have this page:
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>Facelet Title</title>
</h:head>
<h:body>
<h:form prependId="false">
<p:messages id="msgs" showDetail="true"/>
<p:commandButton value="Info" actionListener="#{messagesController.addInfo}" update="msgs"/>
<p:commandButton value="Warn" actionListener="#{messagesController.addWarn}" update="msgs"/>
<p:commandButton value="Error" actionListener="#{messagesController.addError}" update="msgs"/>
<p:commandButton value="Fatal" actionListener="#{messagesController.addFatal}" update="msgs"/>
</h:form>
</h:body>
and this is my bean to manage the messages
@ManagedBean(name = "beanMessageManager")
@SessionScoped
public class BeanMessageManager {
public void addInfo(ActionEvent actionEvent) {
FacesContext.getCurrentInstance().addMessage("form1:msgs", new FacesMessage(FacesMessage.SEVERITY_INFO,"Sample info message", "PrimeFaces rocks!"));
}
public void addWarn(ActionEvent actionEvent) {
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_WARN,"Sample warn message", "Watch out for PrimeFaces!"));
}
public void addError(ActionEvent actionEvent) {
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR,"Sample error message", "PrimeFaces makes no mistakes"));
}
public void addFatal(ActionEvent actionEvent) {
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_FATAL,"Sample fatal message", "Fatal Error in System"));
}
}
When I click on some button then message isn't display.
What I'am doing bad?
Many thanks for response
2 answers
solution1
1 2013-12-10 14:12:57
Looks like you have the wrong bean name in actionListener .
The bean is named @ManagedBean(name = "beanMessageManager") but in the xhtml page you try to call actionListener="#{messagesController.addInfo}" .
Maybe this would work:
<p:commandButton value="Info" actionListener="#{beanMessageManager.addInfo}" update="msgs"/>
<p:commandButton value="Warn" actionListener="#{beanMessageManager.addWarn}" update="msgs"/>
<p:commandButton value="Error" actionListener="#{beanMessageManager.addError}" update="msgs"/>
<p:commandButton value="Fatal" actionListener="#{beanMessageManager.addFatal}" update="msgs"/>
EDIT
Also you are missing the </html> tag at the end of you xhtml file. Also I think you should use msgs instead of "form1:msgs" . Unfortunately I am not 100% sure on how primefaces works since I never used it.
solution2
0 2013-12-10 15:14:27
The problem is that here actionListener="#{messagesController.addInfo}" you are calling a messageController that may not exists. You should be using the beanMessageManager instead.
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