Eureka的配置分为 单机版 和 集群版两种情况,本篇先讲述单机版
一、EurekaServer 配置
1、新建服务端 moudle ,名字:cloud-eureka-server7001
2、引入 pom 依赖
<dependencies>
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-eureka-server -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>com.solomon.springcloud</groupId>
<artifactId>cloud-api-commons</artifactId>
<version>${project.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-devtools -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
</dependencies>
3、新建并编写 yml
register-with-eureka: 表示不向注册中心注册自己,client需要注册自己到注册中心,所以为 true;
fetch-registry: 是否去注册中心fetch信息,false表示自己就是注册中心,所以自己不必找自己去检索服务;
service-url: 其它服务和 eurekaServer 的交互地址。
server:
port: 7001
eureka:
instance:
hostname: localhost #eureka 服务端的实例名称
client:
register-with-eureka: false #false表示不向注册中心注册自己
fetch-registry: false #是否去注册中心fetch信息,false表示自己就是注册中心,所以自己不必找自己去检索服务
service-url:
defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/ #设置与eureka server交互的地址查询服务和注册服务都需要依赖这个地址
4、写主类,在主类上加上注解 @EnableEurekaServer,表示这是 Eureka 服务端
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class EurekaMain7001 {
public static void main(String[] args) {
SpringApplication.run(EurekaMain7001.class,args);
}
}
启动该服务,在浏览器打开 localhost:7001,可以打开 Eureka dashboard 界面
image.png
一、EurekaClient 配置,两个子服务中都按下面步骤进行修改
1、改 pom,在 pom 文件中,加入下面Eureka客户端的依赖
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
2、改 yml,在 ym中加入EurekaClient 配置
eureka:
client:
register-with-eureka: true
fetch-registry: true
service-url:
defaultZone: http://localhost:7001/eureka
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