步骤如下： **1. 架构设计**  **2. 构建两个服务端模块**（我这里就不构建3个模块了，只构建2个模块） 两个服务端模块我已经提前构建好了，并将它们都注册到了Eureka集群中，模块名如下： ``` cloud-provider-payment8001 cloud-provider-payment8002 ``` **3. 两个模块的`resources/application.yml`配置** （1）模块 cloud-provider-payment8001 的配置。 ```yml server: port: 8001 spring: application: name: cloud-payment-service eureka: client: service-url: #将当前模块注册到eureka集群中 defaultZone: http://www.eureka7001.com:7001/eureka/,http://www.eureka7002.com:7002/eureka/,http://www.eureka7003.com:7003/eureka/ instance: instance-id: ${project.artifactId} prefer-ip-address: true lease-renewal-interval-in-seconds: 1 lease-expiration-duration-in-seconds: 2 ####actuator#### info: app.name: ${spring.application.name} company.name: www.atguigu.com build.artifactId: ${project.artifactId} build.version: ${project.version} ``` （2）模块 cloud-provider-payment8002 的配置。 ```yml server: port: 8002 spring: application: name: cloud-payment-service eureka: client: service-url: #将当前模块注册到eureka集群中 defaultZone: http://www.eureka7001.com:7001/eureka/,http://www.eureka7002.com:7002/eureka/,http://www.eureka7003.com:7003/eureka/ instance: instance-id: ${project.artifactId} prefer-ip-address: true lease-renewal-interval-in-seconds: 1 lease-expiration-duration-in-seconds: 2 ####actuator#### info: app.name: ${spring.application.name} company.name: www.atguigu.com build.artifactId: ${project.artifactId} build.version: ${project.version} ``` **4. 两个模块的controller代码一样，如下** ```java @RestController @RequestMapping("/payment") public class PaymentController { @Value("${server.port}") private String serverPort; @Value("${info.build.artifactId}") private String instanceId; @GetMapping("/idport") public String idPort() { return "instanceId：" + instanceId + "，serverPort：" + serverPort; } } ``` **5. 验证是否构建成功** 分别启动这两个服务端模块，然后分别访问得到如下信息说明构建成功了。 :-: http://localhost:8001/payment/idport ``` instanceId：cloud-provider-payment8001，serverPort：8001 ``` :-: http://localhost:8002/payment/idport ``` instanceId：cloud-provider-payment8002，serverPort：8002 ```