This application mimics an analytics events registration, like product page access by a customer. The main purpose is to demonstrate how to leverage all the Spring Boot based microservice benefits and use the power of Akka for processing logic. It's possible to create a microservice application entirely with Akka, but this PoC is for Spring Boot.
On the code you can see how Spring Boot is configured and how Actor can be injected by Spring DI and use their injected dependcies transparently.
- You need maven on your path
- On command line, call:
mvn compilemvn spring-boot:runSample startup output:
2016-11-19 20:11:06.340 INFO 3048 --- [ main] c.f.AkkaSpringPocApplication : Starting AkkaSpringPocApplication on IFMTZ0292 with PID 3048 (C:\Users\flavio.medeiros\Documents\Projetos\akka-spring-poc\target\classes started by flavio.medeiros in C:\Users\flavio.medeiros\Documents\Projetos\akka-spring-poc)
2016-11-19 20:11:06.355 INFO 3048 --- [ main] c.f.AkkaSpringPocApplication : No active profile set, falling back to default profiles: default
2016-11-19 20:11:06.541 INFO 3048 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7ae42ce3: startup date [Sat Nov 19 20:11:06 GFT 2016]; root of context hierarchy
2016-11-19 20:11:10.256 INFO 3048 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2016-11-19 20:11:10.293 INFO 3048 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2016-11-19 20:11:10.295 INFO 3048 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.6
2016-11-19 20:11:10.608 INFO 3048 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2016-11-19 20:11:10.609 INFO 3048 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 4075 ms
2016-11-19 20:11:10.989 INFO 3048 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2016-11-19 20:11:10.996 INFO 3048 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2016-11-19 20:11:10.997 INFO 3048 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2016-11-19 20:11:10.997 INFO 3048 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2016-11-19 20:11:11.004 INFO 3048 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2016-11-19 20:11:12.905 INFO 3048 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7ae42ce3: startup date [Sat Nov 19 20:11:06 GFT 2016]; root of context hierarchy
2016-11-19 20:11:13.042 INFO 3048 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/events/{event}],methods=[POST],produces=[application/json]}" onto public org.springframework.web.context.request.async.DeferredResult<org.springframework.http.ResponseEntity> com.flaviomedeiros.web.EventController.postEvent(java.lang.String,java.lang.String)
2016-11-19 20:11:13.051 INFO 3048 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/events],methods=[GET],produces=[application/json]}" onto public org.springframework.web.context.request.async.DeferredResult<org.springframework.http.ResponseEntity> com.flaviomedeiros.web.EventController.postEvent()
2016-11-19 20:11:13.064 INFO 3048 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2016-11-19 20:11:13.065 INFO 3048 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2016-11-19 20:11:13.164 INFO 3048 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-11-19 20:11:13.165 INFO 3048 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-11-19 20:11:13.271 INFO 3048 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-11-19 20:11:13.804 INFO 3048 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2016-11-19 20:11:13.937 INFO 3048 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2016-11-19 20:11:13.948 INFO 3048 --- [ main] c.f.AkkaSpringPocApplication : Started AkkaSpringPocApplication in 9.3 seconds (JVM running for 10.35)
2016-11-19 20:11:22.279 INFO 3048 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring FrameworkServlet 'dispatcherServlet'
2016-11-19 20:11:22.285 INFO 3048 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started
2016-11-19 20:11:22.323 INFO 3048 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 31 ms
The application is a maven project, just import on your preferred IDE and enjoy.