网关限流操作

• 引入依赖

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis-reactive</artifactId>
    <version>2.1.3.RELEASE</version>
</dependency>

• yaml配置文件配置

spring:
  application:
    name: sysgateway
  cloud:
    gateway:
      routes:
        - id: goods
          uri: lb://goods
          predicates:
            - Path=/goods/**
          filters:
            - StripPrefix= 1
            - name: RequestRateLimiter #请求数限流 名字不能随便写
              args:
                key-resolver: "#{@ipKeyResolver}"
                redis-rate-limiter.replenishRate: 1 #令牌桶每秒填充平均速率
                redis-rate-limiter.burstCapacity: 1 #令牌桶总容量

• 引入令牌桶算法bean

@Bean
public KeyResolver ipKeyResolver(){
    return new KeyResolver() {
        @Override
        public Mono<String> resolve(ServerWebExchange exchange) {
            return Mono.just(exchange.getRequest().getRemoteAddress().getHostName());
        }
    };
}