[Demo] How to: Spring AOP and AspectJ, Aspect, Advice, Pointcut, JoinPoint, Annotation | Spring Boo

http://javasampleapproach.com/spring-framework/work-spring-aop-aspectj-aspect-advice-pointcut-joinpoint-annotation-spring-boot Aspect-Oriented Programming (AOP) helps us cut across many methods, objects and type within the application without embedding it in the business logic. With Spring AOP and AspectJ, you can add additional behaviour to existing code without modifying the code itself. The tutorial guides you how to work with Spring AOP and AspectJ using Spring Boot. I. Technology – Java 1.8 – Maven 3.3.9 – Spring Tool Suite – Version 3.8.1.RELEASE – Spring Boot: 1.4.0.RELEASE II. Overview 1. Goal To build an application that uses Aspect on 4 services: – CustmerAspect on CustomerService: with simple expression – CustmerAspectPointcut on CustomerAnotherService: with @Pointcut Annotation and implement Aspect on its own funtions – CustmerAdvanceAspect on CustomerAdvanceService: with @Around – most powerful kind of advice, and more usages of JoinPoint for getting argument information – CustmerAspectAnnotation on CustomerLoggableService: implement Aspect by creating custom annotation @Loggable 2. Project Structure 3. Step to do III. Practice 1. Create Spring Boot project & add Dependencies 2. Create a DataModel class 3. Create Services 4. Create Aspect Classes and Interface 5. Create Spring Bean Configuration File 6. Create a Web Controller 7. Run Spring Boot Application & Enjoy Result – Config maven build: clean install – Run project with mode Spring Boot App – Check results: Request 1 http://localhost:8080/aspectnormal System shows: Execute advice on getCustomerByIdAdvice() Excute advice on Service set Method: setCustomerFirstName Excute advice on Service set Method: setCustomerLastName Request 2 http://localhost:8080/aspectpointcut System shows: Execute logAdvice for AnotherService Method with joinPoint: findCustomerByLastName Execute logAdvice on findCustomerByLastName() Execute logAdvice for AnotherService Method with joinPoint: findAllCustomers Request 3 http://localhost:8080/aspectjoinpoint System shows: Before running Advice on execution(Customer com.javasampleapproach.springaop.service.CustomerAdvanceService.setCustomerFirstName(String,long)) Display Passed Arguments: [Peter, 1] Passed Arguments: [firstName = Peter; id = 1] This is LogAdvice BEFORE excuting Method This is LogAdvice AFTER excuting Method Request 4 http://localhost:8080/aspectloggable System shows: Execute Advice before Annotation @Loggable IV. Source Code ================related keywork=============== #spring aop maven #springaopmaven #spring aop annotation example #springaopannotationexample #spring aop example code #springaopexamplecode #spring aop tutorial pdf #springaoptutorialpdf #spring aop pointcut #springaoppointcut #spring aop interview questions #springaopinterviewquestions #spring boot aop #springbootaop #java aop aspectj #javaaopaspectj #aspectj-autoproxy spring xml #aspectj-autoproxyspringxml #spring 4 aspectj example #spring4aspectjexample #@before annotation spring example #@beforeannotationspringexample #spring aop logging example #springaoploggingexample #spring aop vs aspectj #springaopvsaspectj #aspectj example #aspectjexample #aspectj annotation #aspectjannotation #spring aop proxy vs aspectj #springaopproxyvsaspectj #spring aspect scan #springaspectscan #aspectj spring example #aspectjspringexample #aspectj spring maven #aspectjspringmaven #spring-boot-starter-aop example #spring-boot-starter-aopexample #spring-boot-aop-starter #spring-boot-aop-starter #spring aop tutorial step by step #springaoptutorialstepbystep #spring aop tutorial for beginners #springaoptutorialforbeginners #spring aop tutorial pdf #springaoptutorialpdf #spring aop tutorial video #springaoptutorialvideo #spring aop tutorial java4s #springaoptutorialjava4s #advice in spring #adviceinspring