1.依賴

        <!--引入gateway閘道器依賴-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>

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

        <!--監控檢查依賴-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

2.啟動註解

@SpringBootApplication
@EnableDiscoveryClient
public class GatewayApplication {

    public static void main(String[] args) {
        SpringApplication.run(GatewayApplication.class, args);
    }

}

3.配置檔案

server:
  port: 8888

spring:
  application:
    name: gateway
  cloud:
    consul:
      port: 8500
      host: localhost
      discovery:
        service-name: ${spring.application.name}
    gateway:
      routes:
        - id: user_route
          uri: lb://userservices    # lb: 使用負載均衡策略   userservices代表註冊中心的具體服務名
          predicates:
            - Path=/user/**
        - id: product_route
          uri: lb://productservices    # lb: 使用負載均衡策略   productservices代表註冊中心的具體服務名
          predicates:
            - Path=/product/**
      discovery:
        locator:
          enabled: true   #開啟根據服務名動態獲取路由地址