单机模拟配置Eureka集群 (2)

主程序

package com.linkanyway.registry02; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer; @EnableEurekaServer @SpringBootApplication public class Registry02Application { public static void main(String[] args) { SpringApplication.run (Registry02Application.class, args); } }

application.yml

server: port: 8081 spring: application: name: EurekaCluster # 所有集群内都一样name eureka: instance: hostname: registry02 prefer-ip-address: true # 采用ip地址 ip-address: 127.0.0.1 client: register-with-eureka: true # 控制当Spring Boot启动服务完成后是否将该服务注册到服务治理服务器上。这里因为服务本身就是服务治理服务器且有集群因此为true，如果未构建任何服务治理集群，需将其设置为false，表示不注册 fetch-registry: true # eureka.client.fetch-registry属性设置表示应用启动后是否需要从服务治理服务器中同步已注册的服务注册列表数据到本地 本处集群服务器成员则需要注册此处为true service-url: defaultZone: :8080/eureka # 集群需要配置相互复制 server: wait-time-in-ms-when-sync-empty: 5 3 分别启动registry01,registry02

因为eureka同步需要时间，稍后会就可以看到下图的效果

4 模拟建立一个服务和消费服务 service01 服务

pom.xml

<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.4.2</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.linkanyway</groupId> <artifactId>service01</artifactId> <version>0.0.1-SNAPSHOT</version> <name>service01</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> <spring-cloud.version>2020.0.0</spring-cloud.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>${spring-cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <excludes> <exclude> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </exclude> </excludes> </configuration> </plugin> </plugins> </build> <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> </repository> </repositories> </project>