最近在进行微服务治理落地时，选型了Eureka作为注册中心的组件，网上关于搭建Eureka高可用集群的资料太碎片化，很多都是复制粘贴而来，并没有完整的集群搭建过程，因此专门搭建了一个项目来看看Eureka集群到底该怎么玩
Server端配置
1.创建Eureka Server项目,添加pom.xml配置
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| <!-- 依赖管理 -->
<dependencyManagement>
<dependencies>
<!-- spring boot 依赖-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>${spring.boot.version}</version>
</dependency>
<!-- spring版本依赖管理-->
<dependency>
<groupId>io.spring.platform</groupId>
<artifactId>platform-bom</artifactId>
<version>Brussels-SR7</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- spring cloud依赖 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring.cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- Eureka Server端 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-netflix-eureka-server</artifactId>
</denpendency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${spring.boot.version}</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
|
2.创建EurekaServerApplication类，添加@EnableEurekaServer注解
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| @EnableEurekaServer
@SpringBootApplication
public class EurekaServerApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaServerApplication.class, args);
}
}
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3.添加application.yml配置
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| spring:
application:
name: eurela-server-cluster
---
spring:
profiles: pee1
server:
port: 8761
eureka:
instance:
name: pee1
client:
server-url:
defaultZone: http://pee2:8762/eureka
fetch-registry: false
register-with-eureka: false
---
spring:
profiles: pee2
server:
port: 8762
eureka:
instance:
name: pee2
client:
server-url:
defaultZone: http://pee1:8761/eureka
fetch-registry: false
register-with-eureka: false
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4.修改host文件
5.IDEA中启动主类
也可以在maven打包后的jar中运行命令启动
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| java -jar xxx.jar --spring.profiles.active=pee1
java -jar xxx.jar --spring.profiles.active=pee2
java -jar xxx.jar --spring.profiles.active=pee3
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6.启动成功后，在地址栏输入http://localhost:8761访问Eureka
客户端
1.创建项目，添加maven依赖
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| <!-- 依赖管理 -->
<dependencyManagement>
<dependencies>
<!-- spring boot 依赖-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>${spring.boot.version}</version>
</dependency>
<!-- spring版本依赖管理-->
<dependency>
<groupId>io.spring.platform</groupId>
<artifactId>platform-bom</artifactId>
<version>Brussels-SR7</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- spring cloud依赖 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring.cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-netflix-eureka-client</artifactId>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${spring.boot.version}</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
|
2.创建主类，并添加@EnableEurekaClient注解
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| @SpringBootApplication
@EnableEurekaClient
public class Application {
public static void main (String[] args) {
SpringApplication.run(Application.class,args);
}
}
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3.添加application.properties配置文件
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| server.port=7901
spring.application.name=server-provider
## -------eureka配置----------##
eureka.client.fetch-registry=true
eureka.client.register-with-eureka=true
#####使用IP地址################
eureka.instance.prefer-ip-address=true
eureka.instance.instanceId=${spring.application.name}:${spring.cloud.client.ipAddress}:${server.port}
#续租时间
eureka.instance.lease-renewal-interval-in-seconds=10
#发呆时间
eureka.instance.lease-expiration-duration-in-seconds=30
#Eukre服务地址
eureka.client.service-url.defaultZone=http://127.0.0.1:8761/eureka/
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4.启动运行客户端
5.查看Eureka注册中心页面
