其實區別很簡單，貼兩端程式碼一目瞭然

service層的aop

package com.yy.aop;

//省略匯入包

@Aspect
@Service("logAspect")
public class LogAspect {

    @Pointcut("execution(* com.newer.service.*.*(..))")
    public void anyMethod(){
    }

    @Before("anyMethod()")
    public void before(JoinPoint joinPoint){
        String name=joinPoint.getSignature().getName();
        System.out.println(name+"方法的前置通知");
    }

    @AfterReturning("anyMethod()")
    public void afterMethod(){
        System.out.println("後置通知!");
    }

    @AfterThrowing("anyMethod()")
    public void afterThrowing()throws Throwable{
        System.out.println("異常通知");
    }

    @After("anyMethod()")
    public void finalMethod(){
        System.out.println("最終通知");
    }


    @Around("anyMethod()")
    public Object aroundMethod(ProceedingJoinPoint pjp)throws Throwable{
        System.out.println("環繞通知");
        return  pjp.proceed();
    }

}
 

接下來看controller層的切面

package com.yy.springbootdemo.hospital.controller;


@Aspect
@Component     //每個切面最終還是要掃面到斌容器裡面去，成為bin容器的元件
@Order(4)
public class WebLogAspect {
    //獲取日誌記錄器
    private Logger logger=Logger.getLogger(getClass());
    //獲取執行緒副本
    ThreadLocal<Long> startTime=new ThreadLocal<>();

    @Pointcut("execution(public * com.*.*.*.controller.*.*(..))")
    public void weblog(){}

    @Before("weblog()")
    public void doBefore(JoinPoint joinPoint){
        //獲取請求報文頭部元資料
       ServletRequestAttributes requestAttributes=(ServletRequestAttributes)RequestContextHolder.getRequestAttributes();
       //獲取請求物件
       HttpServletRequest request=requestAttributes.getRequest();
       //記錄控制器執行前的時間毫秒數
       startTime.set(System.currentTimeMillis());
       logger.info("前置通知執行：");
       logger.info("url:"+request.getRequestURL());
       logger.info("method:"+request.getMethod());
       logger.info("ip:"+request.getRemoteAddr());
       logger.info("class_method:"+joinPoint.getSignature().getDeclaringTypeName()+
               "."+joinPoint.getSignature().getName());
       logger.info("args:"+ Arrays.toString(joinPoint.getArgs()));
    }

    @AfterReturning(returning = "ret",pointcut = "weblog()")
    public void doAfter(Object ret){
        logger.info("後置通知執行：");
        logger.info("RESPONSE:"+ret);
        logger.info("spend:"+(System.currentTimeMillis()-startTime.get()));
    }

}