Comet is sometimes called reverse Ajax or server-side push.
Comet 有时也称反向 Ajax 或服务器端推技术（server-side push）。
On the server side, you need to register Eclipse features with the Device Manager server and to create jobs to distribute the features to clients (push).
在服务器端，您需要向Device Manager服务器注册eclipse特性，并创建作业将特性分发给客户端。
Not only does DWR save you much client - and server-side coding, but Reverse Ajax also abstracts the whole server-push mechanism away from your code.
DWR不仅省去了大量客户端和服务器端编码，而且Reverse Ajax还从代码中将完整的服务器-推送机制抽象出来。
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