springmvc如何开启AOP

@Pointcut("execution(* com.air_baocl.controller.selectApi.*(..))")

@Aspect
@Component
public class WebLogAspect {
  private static final Logger LOG = LoggerFactory.getLogger(WebLogAspect.class);
    @Pointcut("execution(* com.air_baocl.controller.selectApi.*(..))")
    //两个..代表所有子目录，最后括号里的两个..代表所有参数。
    //意思是selectApi类下的所有方法都实现AOP
    public void logPointCut() {
    }
    @Before("logPointCut()")
    public void doBefore(JoinPoint joinPoint) throws Throwable {
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        // 记录下请求内容
        LOG.info("请求地址 : " + request.getRequestURL().toString());
        LOG.info("HTTP METHOD : " + request.getMethod());
        LOG.info("IP : " + request.getRemoteAddr());
        LOG.info("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "."
                + joinPoint.getSignature().getName());
        LOG.info("参数 : " + Arrays.toString(joinPoint.getArgs()));
    }
    @AfterReturning(returning = "ret", pointcut = "logPointCut()")// returning的值和doAfterReturning的参数名一致
    public void doAfterReturning(Object ret) throws Throwable {
        // 处理完请求，返回内容
        LOG.info("返回值 : " + ret);
    }
    @Around("logPointCut()")
    public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
        long startTime = System.currentTimeMillis();
        Object ob = pjp.proceed();// ob 为方法的返回值
        LOG.info("耗时 : " + (System.currentTimeMillis() - startTime));
        return ob;
    }
    @AfterThrowing("logPointCut()")  
    public void afterThrowing()  
    {  
        System.out.println("校验token出现异常了......");  
    }
}