content: package org.jeecg.config;
  
  import org.jeecg.filter.GlobalAccessTokenFilter;
  import org.springframework.cloud.gateway.filter.ratelimit.KeyResolver;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.context.annotation.Primary;
  import reactor.core.publisher.Mono;
  
  /**
   * @author scott
   * @date 2020/5/26
   * 路由限流配置
   */
  @Configuration
  public class RateLimiterConfiguration {
      /**
       * IP限流 (通过exchange对象可以获取到请求信息，这边用了HostName)
       */
      @Bean
      @Primary
      public KeyResolver ipKeyResolver() {
          return exchange -> Mono.just(exchange.getRequest().getRemoteAddress().getAddress().getHostAddress());
      }
  
      /**
       * 用户限流 (通过exchange对象可以获取到请求信息，获取当前请求的用户 TOKEN)
       */
      @Bean
      public KeyResolver userKeyResolver() {
          //使用这种方式限流，请求Header中必须携带X-Access-Token参数
          return exchange -> Mono.just(exchange.getRequest().getHeaders().getFirst(GlobalAccessTokenFilter.X_ACCESS_TOKEN));
      }
  
      /**
       * 接口限流 (获取请求地址的uri作为限流key)
       */
      @Bean
      public KeyResolver apiKeyResolver() {
          return exchange -> Mono.just(exchange.getRequest().getPath().value());
      }
  
  }
  