spring boot+ redis 接口访问频率限制的实现

生产环境下可以解决的问题：

1.短信验证码请求评率限制（防止抓包短信轰炸）

2.热点数据请求评率限制（防止数据库爆炸）

@Componentpublic class BlackInterceper implements HandlerInterceptor { @Autowired private RedisTemplate<String, Object> redisTemplate; private Logger log = LoggerFactory.getLogger(this.getClass()); @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { response.setHeader('Content-type', 'text/html;charset=UTF-8'); String token = request.getHeader(Cons.TOKEN.WECHAT); String requestURI = request.getRequestURI(); if (StringUtils.isBlank(token)) { response.setHeader('Content-type', 'text/html;charset=UTF-8'); response.getWriter().write(JsonUtils.marshalToString(ReturnResult.build(401, '未授权'))); return false; } Integer userId = (Integer) redisTemplate.opsForValue().get(Cons.TOKEN.WECHAT + ':' + token); log.error('userId={},访问了url={},请求ip={}',token,requestURI, IpUtil.getIpAddress(request)); if(redisTemplate.hasKey('black')){ if(redisTemplate.opsForSet().isMember('black', userId)){ response.getWriter().write(JsonUtils.marshalToString(ReturnResult.build(500, '由于存在恶意攻击你已被限制访问'))); return false; } } Integer count = (Integer)redisTemplate.opsForValue().get('limit:'+token); if(count==null){ redisTemplate.opsForValue().set('limit:'+token, 1, 60, TimeUnit.SECONDS); return true; }else{ if(count>100 && count<150){ response.getWriter().write(JsonUtils.marshalToString(ReturnResult.build(500, '请求太频繁，请稍后再试'))); redisTemplate.opsForValue().increment('limit:'+token, 1); return false; }else if(count>=150){ redisTemplate.opsForSet().add('black',userId,2,TimeUnit.DAYS); response.getWriter().write(JsonUtils.marshalToString(ReturnResult.build(500, '请求太频繁，已经被限制访问'))); //redisTemplate.opsForSet().add('black',token); return false; }else{ redisTemplate.opsForValue().increment('limit:'+token, 1); return true; } } } @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { // TODO Auto-generated method stub } @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { // TODO Auto-generated method stub }}

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