springcloud-gateway网关（动态路由以及负载均衡转发配置）

1.依赖

        <!--引入gateway网关依赖-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>

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

        <!--监控检查依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

 2.启动注解

@SpringBootApplication
@EnableDiscoveryClient
public class GatewayApplication {

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

}

 3.配置文件

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: 使用负载均衡策略   userservices代表注册中心的具体服务名
          predicates:
            - Path=/user/**
        - id: product_route
          uri: lb://productservices    # lb: 使用负载均衡策略   productservices代表注册中心的具体服务名
          predicates:
            - Path=/product/**
      discovery:
        locator:
          enabled: true   #开启根据服务名动态获取路由地址