002服务提供者Eureka

1、POM配置

　　和普通Spring Boot工程相比，仅仅添加了Eureka、Spring Boot Starter Actuator依赖和Spring Cloud依赖管理

<dependencies><!--添加Eureka Server依赖--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-eureka</artifactId></dependency><!--服务健康检测，务必添加，不然负载均衡消费此服务时，断路器会打开--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId></dependency>
</dependencies>
<dependencyManagement><dependencies><!--Spring Cloud依赖版本管理--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>Dalston.SR1</version><type>pom</type><scope>import</scope></dependency></dependencies>
</dependencyManagement>

02、使能Eureka Client

@SpringBootApplication
@EnableEurekaClient//使能Eureka Server服务
public class Application {public static void main(String[] args) { SpringApplication.run(Application.class, args); } }

03、src/main/resources工程配置文件application.yml

server:
　　port: 2001  #默认启动端口
spring:
　　application:
　　　　name: hello-service-provider #应用名
eureka:instance:hostname: hello-service-provider　　#主机名
　　client:
　　　　serviceUrl:
　　　　　　defaultZone: http://localhost:1000/eureka/ #服务注册中心地址。若部署在其它IP主机，请将localhost改为主机IP

04、提供服务

@RestController
public class HelloController {@GetMapping("/hello")public String hello() {System.out.println("Time" + System.currentTimeMillis());return "Hello Spring Cloud";}
}

　　服务消费者通过http://hello-service-provider/hello即可消费此服务。