Spring AOP

AOP

AOPが必要

AOPの適用

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;

@Aspect
@Component // 쓰거나 아니면 bean으로 등록
public class TimeTraceAop {

    @Around("execution(* hello.hellospring..*(..))") // 적용할 부분 설정
    public Object execute(ProceedingJoinPoint joinPoint) throws Throwable {
        long start = System.currentTimeMillis();
        System.out.println("START"+joinPoint.toString());
        try {
            return joinPoint.proceed(); // 다음 method로 진행
        } finally {
            long finish = System.currentTimeMillis();
            long timeMs = finish-start;
            System.out.println("End"+joinPoint.toString()+" "+timeMs+"ms");

        }

    }
}

@Autowired
    public MemberController(MemberService memberService) {
        this.memberService = memberService;
        System.out.println("memberService = "+ memberService.getClass());
    }

결과
STARTexecution(MemberService hello.hellospring.SpringConfig.memberService())
Endexecution(MemberService hello.hellospring.SpringConfig.memberService()) 13ms
memberService = class hello.hellospring.service.MemberService$$EnhancerBySpringCGLIB$$71033579