【Spring Cloud 02】将微服务注册到Eureka

新建一个微服务Module，名叫`foo-svc` pom依赖 ```xml <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies> ``` 主启动类 ```java package com.example; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.EnableEurekaClient; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; @SpringBootApplication @RestController @EnableEurekaClient public class FooApplication { public static void main(String[] args) { SpringApplication.run(FooApplication.class, args); } @GetMapping("/version") public String version() { return "foo v1"; } } ``` application.yml ```yaml server: port: 8001 spring: application: name: foo-service eureka: instance: hostname: foo01 instance-id: ${eureka.instance.hostname}:${server.port} prefer-ip-address: true # 使用IP client: register-with-eureka: true fetch-registry: true service-url: defaultZone: http://your-eureka-server-ip:8761/eureka/ ``` 注意替换 `your-eureka-server-ip`为你真实的Eureka服务器IP 构建jar包上传到服务器，并启动后，到注册中心查看是否注册成功