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Using spring mvc to create a restful api, Maven is build tool and tomcat with spring jars is deployment .

Plan A: each webservice will be its own separate war file/project ? if required I would supply dependices as jar(s) (such as any dao's/dto's/service layer classes used in different webservices? I would share the spring jars between projects from with tomcat lib directory.

Plan B: Have one large project with different controllers (and subsequent request mappings for restful api) added when needed. Supply the spring dependices with project in maven.

Which is better ? I'm aware spring is not jax-rs compliant - what does this mean in practice, whats the difference if not compliant ?

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It depends on how you want these web services to scale. For example, if your 4 GET calls are called 1 million more times per day than the 1 PUT request, then you'll want to split them out so you can load balance them more easily.

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The first option is good if you might deploy to different boxes in the future, for example on a high traffic site you may want each API in a separate machine or cluster. Otherwise it's just a pain so for small projects just put it all in one war file.

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  • why is it a pain ?
    – NimChimpsky
    Commented May 6, 2012 at 18:17
  • its just extra setup and complexity for nothing. You'd be creating a multi-pom project with dependencies between the projects. But all the jars and wars would ultimately deploy on one tomcat box. So it makes more sense to deploy as a single war unless there's a compelling reason to split it up (e.g. the endpoints are going to deploy to different boxes).
    – Kevin
    Commented May 6, 2012 at 23:22

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