Java/Scala multi-threading issue for a web service

In a web service environment, I want to make a few independent http calls per each request that my application receives. As these calls are independent, it doesn't make sense to make them serially so I need a sort of concurrency.

To my unde开发者_如何学Crstanding, it doesn't make sense to carelessly create new threads for each http call. And also, recreating all these threads brings a lot of overhead.

So I think my best option would be to create a FixedThreadPool in a singleton for all http calls and use that across the application.

Is this the best choice?

You should take a serious look at Akka, and specifically, the Camel support it offers.

You may want to consider using the AsyncHttpClient AsyncHttpClient library for very easy asynchronous http calls. A good series of blog posts that describes how to use this library is Going Asynchronous using AsyncHttpClient