加载页面时显示咆哮声primefaces jsf2 [英] display growl when page is loaded primefaces jsf2

问题描述

我有这个commandButton:

I have this commandButton :

    <p:commandButton value="Enregistrer" action="#{reglementClientMB.ajouter}" 
            process="@this @form" update="@form" >
            <f:setPropertyActionListener target="#{reglementClientMB.est_ajouter}" value="false" />
            </p:commandButton>

动作方法返回到另一页，我想在加载下一页时显示一个p:growl

the action method return to another page , I want to display one p:growl when the next page is loaded

我测试过将其作为其托管bean的构造函数，但咆哮声显示在页面中的数据下方

I tested to put that is the constructor of its managed bean but the growl is displayed below data in the page

FacesContext.getCurrentInstance().addMessage(
                        null,
                        new FacesMessage(FacesMessage.SEVERITY_INFO, ""
                                + "Confirmation", "Réglement crée avec sucée"));

                RequestContext.getCurrentInstance().update("messages");

我该如何实现

先谢谢您

推荐答案

如果<p:growl>是在第一次构造bean之前呈现的，则bean的构造函数可能为时已晚.例如

The bean's constructor may be too late for the job if the <p:growl> is rendered before the bean is been constructed for the first time. E.g.

<p:growl />
...
<h:outputText value="#{bean.something}" />

仅当在<p:growl>呈现之前构造了bean时，该函数才起作用.

It would only work if the bean is constructed before the <p:growl> is rendered.

<h:outputText value="#{bean.something}" />
...
<p:growl />

为了解决您的具体问题，您需要在预渲染视图侦听器中完成这项工作.

In order to solve your concrete problem, you'd need to do the job in a pre render view listener instead.

<f:event type="preRenderView" listener="#{bean.init}" />

使用:

public void init() {
    // Add the desired message here.
}

这篇关于加载页面时显示咆哮声primefaces jsf2的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！