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eureka集群搭建 此集群共有三个eureka台组成 eureka集群的核心思想就是互相注册，相互守望，你中有我，我中有你(个人理解) 意思就是第一台机器01注册地址defaultZone中的地址是02，03的，02的注册地址是01，03的。03的注册地址是01，02的 首先新建三个项目来代表eureka的三台机器 父类的pom文件大家可以一起用
代码语言：javascript复制<?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.atguigu.springcloud</groupId>
<artifactId>cloud2020</artifactId>
<version>1.0-SNAPSHOT</version>
<modules>
<module>cloud-provider-payment8001</module>
<module>cloud-consumer-order80</module>
<module>cloud-api-commons</module>
<module>cloud-eureka-server7001</module>
<module>cloud-eureka-server7002</module>
<module>cloud-eureka-server7003</module>
</modules>
<packaging>pom</packaging>
<!-- 统一管理jar包版本 -->
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<junit.version>4.12</junit.version>
<log4j.version>1.2.17</log4j.version>
<lombok.version>1.16.18</lombok.version>
<mysql.version>8.0.18</mysql.version>
<druid.version>1.1.16</druid.version>
<druid.spring.boot.starter.version>1.1.10</druid.spring.boot.starter.version>
<spring.boot.version>2.2.2.RELEASE</spring.boot.version>
<spring.cloud.version>Hoxton.SR1</spring.cloud.version>
<spring.cloud.alibaba.version>2.1.0.RELEASE</spring.cloud.alibaba.version>
<mybatis.spring.boot.version>1.3.0</mybatis.spring.boot.version>
<mybatis-spring-boot-starter.version>2.1.1</mybatis-spring-boot-starter.version>
<hutool-all.version>5.1.0</hutool-all.version>
</properties>
<distributionManagement>
<site>
<id>website</id>
<url>scp://webhost.company.com/www/website</url>
</site>
</distributionManagement>
<!-- 子模块继承之后，提供作用：锁定版本 子module不用谢groupId和version -->
<dependencyManagement>
<dependencies>
<!--spring boot 2.2.2-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.2.2.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!--spring cloud Hoxton.SR1-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!--Spring cloud alibaba 2.1.0.RELEASE-->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>2.1.0.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${
mysql.version}</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${
druid.version}</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>${
druid.spring.boot.starter.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>${
mybatis-spring-boot-starter.version}</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${
lombok.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>2.2.2.RELEASE</version>
<configuration>
<fork>true</fork>
<addResources>true</addResources>
</configuration>
</plugin>
</plugins>
</build>
</project>新建第一台eureka pom依赖三台都一样只写这一个
代码语言：javascript复制<dependencies>
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-eureka-server -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>com.atguigu.springcloud</groupId>
<artifactId>cloud-api-commons</artifactId>
<version>${
project.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-devtools -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
</dependencies>写完pom文件后需要新建一个yml文件内容如下
代码语言：javascript复制server:
port: 7001
eureka:
instance:
hostname: eureka7001.com #eureka服务端的实例名称
client:
# false表示不向注册中心注册自己
register-with-eureka: false
# false表示自己端就是注册中心,我的职责就是维护服务实例,并不需要检索服务
fetch-registry: false
service-url:
# 设置与Eureka Server交互的地址查询服务和注册服务都需要依赖这个地址
# 单机 defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
# 相互注册集群
#defaultZone: http://eureka7002.com:7002/eureka/
defaultZone:
http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/ #体现你中有我
server:
#关闭自我保护模式，保证不可用服务被及时删除
enable-self-preservation: false
eviction-interval-timer-in-ms: 2000最后新建一个启动类即可
代码语言：javascript复制@SpringBootApplication
@EnableEurekaServer
public class EurekaMain7001 {
public static void main(String[] args) {
SpringApplication.run(EurekaMain7001.class,args);
}
}启动项目后输入http://eureka7001.com:7001/就能够看到其余两台被注册进7001中
这里说明以下eureka7001.com，eureka7002.com，eureka7003.com这些是我修改hosts文件才存在的为了区分eureka
第二台，第三台除了yml文件和启动类不同其余都相同，这里我只将第二台第三台的yml文件贴出来，其余自己根据上面的步骤自己新建，举一反三。 第二台yml
代码语言：javascript复制server:
port: 7002
eureka:
instance:
hostname: eureka7002.com #eureka服务端的实例名称
client:
# false表示不向注册中心注册自己
register-with-eureka: false
# false表示自己端就是注册中心,我的职责就是维护服务实例,并不需要检索服务
fetch-registry: false
service-url:
# 设置与Eureka Server交互的地址查询服务和注册服务都需要依赖这个地址
# 单机 defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
# 相互注册
#defaultZone: http://eureka7001.com:7001/eureka/
defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7003.com:7003/eureka/
server:
#关闭自我保护模式，保证不可用服务被及时删除
enable-self-preservation: false
eviction-interval-timer-in-ms: 2000第三台yml
代码语言：javascript复制server:
port: 7003
eureka:
instance:
hostname: eureka7003.com #eureka服务端的实例名称
client:
# false表示不向注册中心注册自己
register-with-eureka: false
# false表示自己端就是注册中心,我的职责就是维护服务实例,并不需要检索服务
fetch-registry: false
service-url:
# 设置与Eureka Server交互的地址查询服务和注册服务都需要依赖这个地址
# 单机 defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
# 相互注册集群
#defaultZone: http://eureka7002.com:7002/eureka/
defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/
server:
#关闭自我保护模式，保证不可用服务被及时删除
enable-self-preservation: false
eviction-interval-timer-in-ms: 2000集群与springboot消费者生产者的案例将在下一篇更新。
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