[김영한 스프링] 19. AOP

개발게발 2023. 4. 1. 23:42

시간 측정 로직을 추가할 곳이 많으면 많을수록 유지보수 불가능

package hello.hellospring.aop;

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

@Aspect
@Component
public class TimeTraceAop {
@Around("execution(* hello.hellospring..*(..))")
  public Object execute(ProceedingJoinPoint joinPoint) throws Throwable {
  long start = System.currentTimeMillis();
  System.out.println("START: " + joinPoint.toString());

  try {
  return joinPoint.proceed();

  } finally {
  long finish = System.currentTimeMillis();
  long timeMs = finish - start;
  System.out.println("END: " + joinPoint.toString() + " " + timeMs + "ms");

  }
  }
}