java - Streaming API的策略

Question

https://dev.twitter.com/docs/streaming-apis

An app which connects to the Streaming APIs will not be able to establish a connection in response to a user request, as shown in the above example. Instead, the code for maintaining the Streaming connection is typically run in a process separate from the process which handles HTTP requests

正如上面所说的流式API而不是传统的API，有一个API用于维护流式连接，如何做到这一点？我们知道http是无状态的，只有浏览器发出请求，服务器才能响应，它如何保持连接呢？是客户端不断发送请求，还是html5中的socket，或者这个问题与http无关，只是c/s的问题？

Answer 1

我认为这不是http的问题，它将是在http下运行的东西，比如c/s