spring-cloud入门之eureka-server（服务发现）

2024-07-13 10:16:56

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前言

Eureka是一个服务发现和注册框架，细的来说，我们可以分为eureka-server（服务发现）和eureka-client（服务注册）两个，本次我们对eureka-server（服务发现）做一个项目搭建，作为spring-cloud的开篇。

开源地址：https://github.com/bigbeef

项目结构

spring,cloud,eureka,server

maven结构大家应该都清楚（不清楚的需要补一补，百度关于maven的文章不计其数），下面我们来看一看这些关键文件的配置

代码编写

cppba-spring-cloud > pom.xml

<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.cppba</groupId>  <artifactId>cppba-spring-cloud</artifactId>  <version>1.0.0</version>  <packaging>pom</packaging>  <name>${project.artifactId}</name>  <parent>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-parent</artifactId>    <version>1.5.5.RELEASE</version>  </parent>  <properties>    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>    <java.version>1.8</java.version>    <spring-cloud.version>Dalston.SR2</spring-cloud.version>  </properties>  <dependencyManagement>    <dependencies>      <dependency>        <groupId>org.springframework.cloud</groupId>        <artifactId>spring-cloud-dependencies</artifactId>        <version>${spring-cloud.version}</version>        <type>pom</type>        <scope>import</scope>      </dependency>    </dependencies>  </dependencyManagement>  <modules>    <module>cppba-spring-cloud-eureka-server</module>  </modules></project>

cppba-spring-cloud-eureka-server > 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 http://maven.apache.org/xsd/maven-4.0.0.xsd">  <modelVersion>4.0.0</modelVersion>  <artifactId>cppba-spring-cloud-eureka-server</artifactId>  <packaging>jar</packaging>  <name>${project.artifactId}</name>  <parent>    <groupId>com.cppba</groupId>    <artifactId>cppba-spring-cloud</artifactId>    <version>1.0.0</version>  </parent>  <dependencies>    <dependency>      <groupId>org.springframework.cloud</groupId>      <artifactId>spring-cloud-starter-eureka-server</artifactId>    </dependency>  </dependencies>    <build>    <finalName>${project.name}</finalName>    <plugins>      <!--打包可执行的jar-->      <plugin>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-maven-plugin</artifactId>      </plugin>    </plugins>   </build></project>

SpringCloudEurekaServerApplication.java

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

application.properties

server.port=8761eureka.instance.hostname=eureka-servereureka.client.registerWithEureka=falseeureka.client.fetchRegistry=falseeureka.client.serviceUrl.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/

到此项目搭建完成

启动项目

我们启动SpringCloudEurekaServerApplication中的main方法，访问http://127.0.0.1:8761

spring,cloud,eureka,server