springcloud 结合eureka开启注册中心

首先创建一个简单的mvn工程
在pom.xml文件中引入依赖

<dependencies>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-parent -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.1.RELEASE</version>
<type>pom</type>
</dependency>

<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-dependencies -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.SR3</version>
<type>pom</type>
</dependency>

<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-eureka -->
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-eureka-server -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka-server</artifactId>
<version>1.4.6.RELEASE</version>
</dependency>

如果你的jdk比8高，可能会报错，把下面的依赖加上就好

<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.2.11</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>2.2.11</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.2.11</version>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1.1</version>
</dependency>

然后配置一个application.yml

server:
port: 8761
spring:
application:
name: app-itmayiedu-order

eureka:
instance:
###注册中心ip地址
hostname: 127.0.0.1
client:
serverUrl:
defaultZone: http://${eureka.instance.hostname}:8861/eureka/
register-with-eureka:false
fetch-registry: false

###端口自选，一般默认是8761

最后创建一个启动的类

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

@SpringBootApplication
@EnableEurekaServer
public class Eureka {
public static void main(String[] args) {
SpringApplication.run(Eureka.class,args);
}
}

然后启动即可，在浏览器中输入localhost+端口号，返回如下界面即启动成功