Eureka 服务端配置

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/