搭建Eureka集群

1.pom文件

<?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.zlpay</groupId>
    <artifactId>zl-eureka</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>zl-eureka</name>
    <description>服务注册与发现</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Finchley.SR1</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </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>${spring-cloud.version}</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>

2.配置文件application.yml

#服务注册中心实例的主机名
spring:
  application:
    name: zl-eureka
  #节点1
  profiles: peer1
server:
  #端口
  port: 5001
eureka:
  instance:
    hostname: peer1
  client:
    #是否向服务注册中心注册自己
    registerWithEureka: true
    #是否检索服务
    fetchRegistry: true
    serviceUrl:
      #服务注册中心的配置内容，指定服务注册中心的位置
      defaultZone: http://peer2:5002/eureka/,http://peer3:5003/eureka/
---

spring:
  application:
    name: zl-eureka
  profiles: peer2
server:
  port: 5002
eureka:
  instance:
    hostname: peer2
  client:
    #是否向服务注册中心注册自己
    registerWithEureka: true
    #是否检索服务
    fetchRegistry: true
    serviceUrl:
      #服务注册中心的配置内容，指定服务注册中心的位置
      defaultZone: http://peer1:5001/eureka/,http://peer3:5003/eureka/
---

spring:
  application:
    name: zl-eureka
  profiles: peer3
server:
  port: 5003
eureka:
  instance:
    hostname: peer3
  client:
    #是否向服务注册中心注册自己
    registerWithEureka: true
    #是否检索服务
    fetchRegistry: true
    serviceUrl:
      #服务注册中心的配置内容，指定服务注册中心的位置
      defaultZone: http://peer1:5001/eureka/,http://peer2:5002/eureka/

3.启动类注解

@EnableEurekaServer
@SpringBootApplication
public class ZlEurekaApplication {

	public static void main(String[] args) {
		SpringApplication.run(ZlEurekaApplication.class, args);
	}
}

4.启动

首先配置hosts文件，追加以下内容：

127.0.0.1 peer1
127.0.0.1 peer2
127.0.0.1 peer3

4.1 Eclipse启动

Run Configurations中运行3次启动三个节点，profile值分别是peer1、peer2、peer3

4.2 Jar包启动

先将项目打成jar包，然后使用jar命令：

java -jar zl-eureka-0.0.1.jar --spring.profiles.active=peer1

java -jar zl-eureka-0.0.1.jar --spring.profiles.active=peer2

java -jar zl-eureka-0.0.1.jar --spring.profiles.active=peer3

4.3 war包启动

待续…