结构
如图所示,eureka 模块就是 eureka 服务端,另外 2 个模块都属于 eureka 客户端。
依赖配置
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.eureka.server</groupId>
<artifactId>springcloud-eureka</artifactId>
<version>1.0-SNAPSHOT</version>
<name>springcloud-eureka</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<spring-cloud.version>Hoxton.SR1</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
</project>
application.properties 配置
server.port=8763
#与下面的服务地址其实没有关联
eureka.instance.hostname=localhost
#是否注册到eureka
eureka.client.registerWithEureka=false
#是否从eureka中拉取注册信息
eureka.client.fetchRegistry=false
##暴露eureka服务的地址
eureka.client.serviceUrl.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/
#自我保护模式,当出现出现网络分区、eureka在短时间内丢失过多客户端时,会进入自我保护模式,即一个服务长时间没有发送心跳,eureka也不会将其删除,默认为true
#为true,客户端的eureka.instance.lease-expiration-duration-in-seconds才有用
eureka.server.enable-self-preservation=true
#eureka server清理无效节点的时间间隔,默认60000毫秒,即60秒
#eureka.server.eviction-interval-timer-in-ms=60
SpringBoot 启动类配置
//开启eurekaServer服务注册功能
@EnableEurekaServer
监控地址
http://localhost:8763/