从@ApplicationScoped bean更新p:growl,侦听p:socket [英] Update p:growl from @ApplicationScoped bean listening on p:socket
问题描述
我有正在侦听Web套接字的应用程序范围的Bean.收到消息后,我想更新咆哮声.但是下面这样的方法不起作用,因为它不在请求/响应时间内.有可能这样做吗?
I have application scoped bean that is listening to web-socket. When message is received I would like to update growl. But something like below doesn't work because it is not in request / response time. It is possible to do this?
RequestContext.getCurrentInstance().update("growl");
FacesContext context = FacesContext.getCurrentInstance();
context.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_INFO, "Message", "value"));
推荐答案
您需要做的是将Bean的PrimeFaces推送事件发送到所有客户端共享的常规Websocket上的所有已连接客户端.在这种情况下,您发送的消息类似于 PrimeFaces推送通知示例
What you need to do is send a PrimeFaces push event from the bean to all attached clients on a general websocket shared by all clients. In that event you send a message like in the PrimeFaces push notify example
public void send() {
EventBus eventBus = EventBusFactory.getDefault().eventBus();
eventBus.publish(CHANNEL, new FacesMessage(StringEscapeUtils.escapeHtml(summary), StringEscapeUtils.escapeHtml(detail)));
}
然后在页面中显示该消息
And then in the page show that message
<p:growl widgetVar="growl" showDetail="true" />
<p:socket onMessage="handleMessage" channel="/notify" />
<script type="text/javascript">
function handleMessage(facesmessage) {
facesmessage.severity = 'info';
PF('growl').show([facesmessage]);
}
</script>
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