发送短信验证码过于频繁问题的解决

时间：2024-11-07 17:54:52

1.对请求的接口做了一个限流的控制,

2.利用到:AOP,redis,定时器;

3.在请求的congtroller层上加相应的注解就可以;

具体的Demo工程如下

package ;

import ;
import .slf4j.Slf4j;
import ;
import ;
import ;
import ;

import ;
import ;
import ;
import ;

///befroe_You/article/details/83748927
@Aspect
@Component
@Slf4j
public class RequestLimitContract {
    private Map<String, Integer> redisTemplate = ();

    @Before("within(@ *)&& @annotation(limit)")

    public void requestLimit(final JoinPoint joinPoint, RequestLimit limit) throws RequestLimitException {
        try {
            Object[] args = ();
            HttpServletRequest request = null;
            for (int i = 0; i < ; i++) {
                if (args[i] instanceof HttpServletRequest) {
                    request = (HttpServletRequest) args[i];
                    break;
                }
            }
            /**
             * 将请求参数转变为request
             */
            if (request == null) {
                throw new RequestLimitException("方法中缺失HttpServletRequest参数");
            }
            String ip = ();
            String url = ().toString();
            String key = "req_limit".concat(ip).concat(url);
            if ((key) == null || (key) == 0) {
                (key, 1);
            } else {
                (key, (key) + 1);
            }
            Integer count = (key);
            if (count > 0) {
                //创建一个定时器
                Timer timer = new Timer();
                TimerTask timerTask = new TimerTask() {
                    @Override
                    public void run() {
                        (key);
                    }
                };
                //这个定时器设定在time规定的时间之后会执行上面的remove方法，也就是说在这个时间后它可以重新访问
                (timerTask, ());
            }
            if (count > ()) {
                ("用户IP[" + ip + "]访问地址[" + url + "]超过了限定的次数[" + () + "]");
                throw new RequestLimitException();
            }
        }catch (RequestLimitException e){
            throw  e;
        }catch (Exception e){

        }
    }
}

 

package ;

import ;
import ;

import .*;

@Retention()
@Target()
@Documented
@Order(Ordered.HIGHEST_PRECEDENCE)
public @interface RequestLimit {
    /**
     * 允许访问最大次数
     */
    int count() default Integer.MAX_VALUE;

    /**
     * 时间段
     */
    long time() default 6000;
}

package ;

import ;
import ;

import ;

@Controller
public class testController {
    @RequestMapping("/hello")
    @RequestLimit(count = 4, time = 60000)
    public String test(HttpServletRequest request) {
        return "hello1111";
    }
}

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