本篇文章為大家展示了怎么在spring boot中限制redis 接口的訪問(wèn)頻率,內(nèi)容簡(jiǎn)明扼要并且容易理解,絕對(duì)能使你眼前一亮,通過(guò)這篇文章的詳細(xì)介紹希望你能有所收獲。

生產(chǎn)環(huán)境下可以解決的問(wèn)題:
1.短信驗(yàn)證碼請(qǐng)求評(píng)率限制(防止抓包短信轟炸)
2.熱點(diǎn)數(shù)據(jù)請(qǐng)求評(píng)率限制(防止數(shù)據(jù)庫(kù)爆炸)
@Component
public 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, "未授權(quán)")));
return false;
}
Integer userId = (Integer) redisTemplate.opsForValue().get(Cons.TOKEN.WECHAT + ":" + token);
log.error("userId={},訪問(wèn)了url={},請(qǐng)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, "由于存在惡意攻擊你已被限制訪問(wèn)")));
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, "請(qǐng)求太頻繁,請(qǐng)稍后再試")));
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, "請(qǐng)求太頻繁,已經(jīng)被限制訪問(wèn)")));
//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
}
}上述內(nèi)容就是怎么在spring boot中限制redis 接口的訪問(wèn)頻率,你們學(xué)到知識(shí)或技能了嗎?如果還想學(xué)到更多技能或者豐富自己的知識(shí)儲(chǔ)備,歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道。
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