(1)新建 springboot项目 添加Eureka Server
pom如下:
<?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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.cloud</groupId>
<artifactId>peer</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>peer</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Greenwich.SR1</spring-cloud.version>
</properties>
<dependencies>
<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-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>
启动类如下:
package com.cloud.peer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@EnableEurekaServer
@SpringBootApplication
public class PeerApplication {
public static void main(String[] args) {
SpringApplication.run(PeerApplication.class, args);
}
}
(2)添加配置文件
配置文件的格式为:application-{profiles}.yml
其中{profiles}为多例运行时获取版本信息的识别名称
我这里新建的两个配置文件如下:
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIyZuBnL0QTN3ITMyYTM3ETNwkTMwIzLc52YucWbp5GZzNmLn9Gbi1yZtl2Lc9CX6MHc0RHaiojIsJye.png)
具体配置信息如下:
其中自定义的两个hostname,peer1和peer2 需要在C:\Windows\System32\drivers\etc的hosts文件内添加映射关系,如下图。
而defaultzone则为对方的地址信息
pee1:
spring:
application:
name: euraka-server
server:
port: 1111
eureka:
instance:
hostname: peer1
client:
service-url:
defaultZone: http://peer2:1112/eureka/
peer2:
spring:
application:
name: euraka-server
server:
port: 1112
eureka:
instance:
hostname: peer2
client:
service-url:
defaultZone: http://peer1:1111/eureka/
(3)配置多例启动
找到idea中的服务器配置菜单
因为我们设置了两个启动配置,所在新建两个服务。并配置program arguments为--spring.profiles.active=peer2,其中peer2即为位置文件中‘-’后的标识名称。并勾选右上角All parallel run
配置成功后,依次启动两个例子。
结果如下
http://localhost:1112/
http://localhost:1111/
完成
三端集群的demo,可以参考:
https://github.com/leooel12138/peer.git