Springbootフェースプログラミング

1.依存のインポート

	org.springframework.boot
	spring-boot-starter-aop		

2.classへの通知

package com.example.demo;

import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.springframework.stereotype.Component;

@Slf4j
@Component
@Aspect
public class MyAspect {

	@Before(value = "within(com.example.demo.service.*Impl)")
	public void before(JoinPoint point) {
		log.info("======= ======");
		log.info("  >>> " + point.getSignature().getName());
		log.info("  >>> " + point.getTarget());
	}

	@After(value = "within(com.example.demo.service.*Impl)")
	public void after(JoinPoint point) {
		log.info("======= ======");
		log.info("  >>> " + point.getSignature().getName());
		log.info("  >>> " + point.getTarget());
	}

	@Around(value = "within(com.example.demo.service.*Impl)")
	public Object around(ProceedingJoinPoint point) throws Throwable {
		log.info("======= ======");
		log.info("  >>> " + point.getSignature().getName());
		log.info("  >>> " + point.getTarget());
		Object object = point.proceed();

		log.info("======= ======");
		return object;
	}
}

3.テスト出力

======= ======                                  
  >>> test                                          
  >>> com.example.demo.service.AdviceTestImpl@76b0ae1b 
======= ======                                         
  >>> test                                          
  >>> com.example.demo.service.AdviceTestImpl@76b0ae1b 
                                                       
======= ======                                  
======= ======                                         
  >>> test                                          
  >>> com.example.demo.service.AdviceTestImpl@76b0ae1b