JSF的长轮询(待处理请求)

本文介绍了JSF的长轮询(待处理请求)的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我需要对聊天室实施长时间的轮询或待处理的请求.我尝试了a4j:push，但似乎不能像真正的长时间轮询方法那样工作(请参阅以下讨论: community.jboss/message/16614 ).

I need to implement long polling or pending request for a chatroom. I tried a4j:push, but it seems doesn't work like a real long polling approach (see the following discussion: community.jboss/message/16614).

问题是:我必须采用哪些替代方法来实现长时间轮询?

The question is: which alternatives do I have to realize long polling?

我正在使用JSF 1.2，JAVA EE 6和RichFaces 3.3.2.

I'm using JSF 1.2, JAVA EE 6 and RichFaces 3.3.2.

提前想好了！

推荐答案

您需要使用RichFaces中的a4j:poll组件. exadel现场演示有一个非常好的示例，并解释了主要属性.另外，您可以在官方文档.

You need to use the a4j:poll component from RichFaces. The exadel live demo has a very nice sample and explains the main properties. Plus, you can get more info in the official documentation.

也许您想看一个聊天实现示例而不是轮询.有一个问题:

Maybe you want to look at a chat implementation example and not polling. There is a question about it:

stackoverflow/a/1577486/1065197