springboot结合ehcache防止恶意刷新请求的实现

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
@Documented
@Order(Ordered.HIGHEST_PRECEDENCE)
public @interface RequestLimit {
  /**
   * 允许访问的最大次数
   */
  int count() default 15;

  /**
   * 时间段，单位为毫秒，默认值一分钟
   */
  long time() default 1000*60;
}

@Aspect
@Component
public class RequestLimitAspect {
  private static final Logger logger = LoggerFactory.getLogger(RequestLimit.class);

  @Autowired
  EhcacheUtil ehcacheUtil;

  @Before("within(@org.springframework.stereotype.Controller *) && @annotation(limit)")
  public void requestLimit(final JoinPoint joinPoint , RequestLimit limit) throws RequestLimitException {
    try {
      Object[] args = joinPoint.getArgs();
      HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
      String ip = IpUtil.getRemoteIp(request);
      String uri = request.getRequestURI().toString();
      String key = "req_"+uri+"_"+ip;
      String blackKey = "black_"+ip; // 黑名单IP封锁一段时间
      int count = 0; // 访问次数
      // 判断是否在黑名单
      if (ehcacheUtil.contains("countcache",blackKey)){
        throw new RequestLimitException();
      }else{
        // 判断是否已存在访问计数
        if (!ehcacheUtil.contains("limitCache",key)) {
          ehcacheUtil.put("limitCache",key,1);

        } else {
          count = ehcacheUtil.getInt("limitCache",key)+1;
          ehcacheUtil.put("limitCache",key,count);
          if (count > limit.count()) {
            logger.info("用户IP[" + ip + "]访问地址[" + uri + "]超过了限定的次数[" + limit.count() + "]");
            // 加入黑名单
            ehcacheUtil.put("countcache",blackKey,"badguy");
            throw new RequestLimitException();
          }
        }
      }


    }catch (RequestLimitException e){
      throw e;
    }catch (Exception e){
      logger.error("发生异常",e);
    }
  }
}

 @RequestLimit(count=10)
  @OperLog(operModule = "更多文章",operType = "查询",operDesc = "查询更多文章")
  @GetMapping("/more/{categoryId}")
  public String getMore(@PathVariable("categoryId") String categoryId, Model model, HttpServletRequest request) {
    // 略
  }