为此，有几个经过改进的 API。 这里是 jQuery 的一个。 这里是一篇描述如何在 ASP.NET 中实现这一点。由于令人讨厌的持续连接问题，这是一个很难构思的框架。
There are several somewhat evolved APIs for this. Here is one for jQuery. Here is a blog post describing how to implement this in ASP.NET. It's a difficult framework to idea due to that pesky constant connectivity thing.
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PubSubHubbub 一个简单、开放、基于服务器到服务器网络钩子的 pubsub (publish/ subscribe）协议作为 Atom 和 RSS 的扩展。
他们还有一个 wiki 页面，用于比较不同的协议。
PubSubHubbub A simple, open, server-to-server web-hook-based pubsub (publish/subscribe) protocol as an extension to Atom and RSS.
They also have a wiki page for comparing different protocols.
为此，有几个经过改进的 API。 这里是 jQuery 的一个。 这里是一篇描述如何在 ASP.NET 中实现这一点。由于令人讨厌的持续连接问题，这是一个很难构思的框架。
There are several somewhat evolved APIs for this. Here is one for jQuery. Here is a blog post describing how to implement this in ASP.NET. It's a difficult framework to idea due to that pesky constant connectivity thing.