spring-gateway-通过服务名称访问微服务

工程目录

• cloud-eureka-server: 注册中心
• foundation-consumer: 消费者
• foundation-gateway-server: 网关

cloud-eureka-server

applicatioin.yml :

spring:
  application:
    name: eureka-server
server:
  port: 8761
eureka:
  instance:
    hostname: localhost
  client:
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
    fetch-registry: false
    register-with-eureka: false

foundation-consumer

application.yml :

spring:
  application:
    name: foundation-consumer

server:
  port: 8080

eureka:
  client:
    service-url:
      defaultZone: http://localhost:8761/eureka
    fetch-registry: true
    register-with-eureka: true

controller :

@RestController
public class HelloController {


    @GetMapping("/echo/{name}")
    public String echo(@PathVariable("name") String name){
        return "hello: ".concat(name);
    }
}

foundation-gateway-server

application.yml:

spring:
  application:
    name: foundation-gateway-server
  cloud:
    gateway:
      routes:
        - id: rt_consumer
          uri: lb://foundation-consumer
          predicates:
            - Path=/h5/sc/**
          filters:
            # 不需要拼接 /h5/sc
            - StripPrefix=2
      discovery:
        # locator需要打开，不然通过 lb://.. 方式请求不到
        locator:
          enabled: true
          lower-case-service-id: true

server:
  port: 9090

eureka:
  instance:
    hostname: localhost
  client:
    service-url:
      defaultZone: http://localhost:8761/eureka/
     # 这个不能是false, 需要向注册中心拉取服务信息
    fetch-registry: true

访问服务

现在可以访问:

http://localhost:9090/foundation-gateway-server/h5/sc/echo/tom

或者:

http://localhost:9090/h5/sc/echo/tom