spring cloud gateway 整合 consul

​ 工程pom.xml 引入 依賴

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-consul-discovery</artifactId>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
 

​ 在啟動類中增加 註解 @EnableDiscoveryClient

​ 在配置中增加閘道器配置

# tomcat 配置
server:
  port: 5000

# 服務名稱
spring:
  application:
    name: api-gateway
cloud:
  # consul server地址
  consul:
    host: localhost
    port: 8500
    discovery:
    # 健康檢查 一定要配置 結合 spring-boot-starter-actuator 使用
      health-check-path: /actuator/health
      health-check-interval: 10s
# 閘道器配置
gateway:
  filter:
    remove-non-proxy-headers:
      headers:
      - dummy
  discovery:
  	locator:
    	enabled: true
  routes:
  - id: orderApi
    # consul 獲取的服務名稱 lb -> load balance
    uri: lb://order-server
    predicates:
    - Path=/api/order/**
    # 過濾 去掉路徑中的 /orderApi
    filters:
    - StripPrefix=1


  - id: commodityApi
    # consul 獲取的服務名稱 lb -> load balance
    uri: lb://commodity-server
    predicates:
    - Path=/api/commodity/**
    # 過濾 去掉路徑中的 /api
    filters:
    - StripPrefix=1
 

​ gateway 自帶限流功能 需要 redis 依賴支援

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

​ 配置需要同步修改

routes:
- id: payApi
# consul 獲取的服務名稱 lb -> load balance
  uri: lb://pay-server
  predicates:
  - Path=/api/pay/**
# 過濾 去掉路徑中的 /orderApi
  filters:
  - StripPrefix=1
# 限流操作
  - name: RequestRateLimiter
    args:
      # 允許使用者每秒處理多少個請求
      redis-rate-limiter.replenishRate: 10
      # 令牌桶的容量，允許在一秒鐘內完成的最大請求數
      redis-rate-limiter.burstCapacity: 20
      # ip 限流 bean
      key-resolver: "#{@ipKeyResolver}"
 

​ 注入自定義限流型別(針對 ip 限流)

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