在 Eureka简介 中,谈到Eureka包含两部分,分别是:Eureka Server 和 Eureka Client。下面将介绍怎样去搭建一个Eureka服务器;
注意:我们采用的Spring Boot版本是 1.5.2.RELEASE,同时要保证 Eureka的版本一致。
<parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.2.RELEASE</version> <relativePath/> </parent>
Spring Boot可以通过Spring Initializr (https://start.spring.io/ ) 进行快速创建,如下图:
上图中,简单的选择Maven版本、Spring Boot、Group和Artifact等信息,即可创建一个Spring Boot项目。然后下载到本地,通过IDEA、Eclipse进行导入。当然,也可以直接通过IDEA提供的Spring Initializr界面进行创建。
添加 spring-cloud-starter-eureka-server 依赖。完整的 pom 文件如下:
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="https://maven.apache.org/POM/4.0.0" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.forezp</groupId> <artifactId>eureka-server</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.2.RELEASE</version> <relativePath/> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <!-- eureka server的依赖 --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka-server</artifactId> </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>Dalston.RC1</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
server: port: 8761 # Eureka Server的端口 eureka: instance: hostname: localhost # Eureka Server的主机地址 client: registerWithEureka: false # 自己不注册到 Eureka Server fetchRegistry: false serviceUrl: # 注册中心访问地址 defaultZone: https://${eureka.instance.hostname}:${server.port}/eureka/
@EnableEurekaServer 该注解表明应用为eureka服务,有可以联合多个服务作为集群,对外提供服务注册以及发现功能
@SpringBootApplication(创建完的boot项目自带的启动注解,会加载一些配置)
package com.huangx.spring; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer; @EnableEurekaServer @SpringBootApplication public class EurekaServerApplication { public static void main(String[] args) { SpringApplication.run(EurekaServerApplication.class, args); } }
运行 EurekaServerApplication 类,然后通过浏览器访问 https://localhost:8761 ,如果能够看见下图页面则说明成功。