Call a spring @service from another project

Question

I've been studying Spring MVC 4 and I understand that Spring have several annotations to develop faster. This question and answer explains very well the relation between @Component, @Service, @Repository and @Controller. My questions are:

Can a @service class be called from another machine as a common wsdl service? For example, from a standalone app that is the client of the service.
Or is @service annotation just to mark the use of a class?

Thanks

score 3 · Answer 1 · answered Aug 29 '14 at 09:24

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The methods in class annotated with @Service cannot be called from outside, but it is common practice to add another layer generally called facade on top of the layer where you have your classes annotated with @Service(generally called as service layer). Using this facade you can expose your services in different ways like REST, SOAP etc.

answered Aug 29 '14 at 09:24

varun

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Now it's very clear that I need an extra layer to separate functions. Thanks – Jessai Aug 29 '14 at 14:18

score 2 · Accepted Answer · answered Aug 28 '14 at 19:59

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Annotation @Service is only a special version of @Component annotation and its purpose is not providing a remote access to implementation.

As mentioned in documentation, @Service annotation helps the class to be auto detected during the classpath scanning (see the JavaDoc) and processed by some tools. Also check the explanation on Spring's forum.

answered Aug 28 '14 at 19:59

Jurica Krizanic

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Can I put both annotations @service and @webservice? – Jessai Aug 28 '14 at 22:03
I'm not sure, but I would advice you to annotate service implementation with @Service annotation, and inject it into the endpoint implementation (check http://docs.spring.io/spring/docs/current/spring-framework-reference/html/remoting.html). In this way, you can expose your service implementation with different remoting technologies. – Jurica Krizanic Aug 29 '14 at 06:02

score 1 · Answer 3 · answered Aug 28 '14 at 20:11

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I don't think it can be called by using @service you need to annotate the class with @Webservice to expose it to the outside world

answered Aug 28 '14 at 20:11

m b

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score 1 · Answer 4 · answered Aug 28 '14 at 20:15

Don't confuse javax @WebService with Spring @Service which is defined here. Although both are called service. @Service's purpose is simply:

This annotation serves as a specialization of @Component, allowing for implementation classes to be autodetected through classpath scanning.

So, since @WebService is for WSDLs (external access), a @Serviceis for Spring's internal use. If you want to access "Services" from other machines, you have to write a @WebService or use @RequestMapping with SpringMVC.

Call a spring @service from another project

4 Answers4