AOP实现请求拦截

拦截controller层以s_开头所有方法的，参考博文

@Before("execution(* com.top.sstore.controller.*.s_*(..))") 
    public void log(JoinPoint joinPoint){
        //获取RequestAttributes
        RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
        HttpSession session = (HttpSession) requestAttributes.resolveReference(RequestAttributes.REFERENCE_SESSION);
        boolean b = userService.checkUserId((Integer) session.getAttribute(staticValues.getSessionUserId()));
        if (b)
            return;
        throw new RuntimeException("未登录");   //未登录，抛异常
    }