5分钟搭建SpringCloud Eureka服务注册中心的实现

创建父级项目 只需保留pom.xml文件

这里只需搭建一个微服务 其他操作并无

<?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.tyy.springcloud</groupId>
  <artifactId>cloudstudy</artifactId>
  <packaging>pom</packaging>
  <version>1.0-SNAPSHOT</version>
  <!--	这里是父级下面控制的子级 -->
  <modules>
  	<!-- 服务客户端 -->
   	<module>cloud-provider-8001</module>
   	<!-- 注册中心 -->
   	<module>cloud-eureka-server9001</module>
  </modules>
   <!-- 统一管理jar包版本  -->
   <!-- 具体这样 就是为了方便不在选择jar包版本号 防止jar包冲突报错 -->
  <properties>
  	<!-- 编码格式 与JDK1.8 -->
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
	</properties>
	 <!--子模块继承之后，提供作用：锁定版本+子module不用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>
   </dependencies>
  </dependencyManagement>  
</project>

搭建注册中心 cloud-eureka-server9001

首先搭建项目基本就是 写pom，写配置…

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">
  <parent>
    <artifactId>cloudstudy</artifactId>
    <groupId>com.tyy.springcloud</groupId>
    <version>1.0-SNAPSHOT</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>

  <artifactId>cloud-eureka-server9001</artifactId>

  <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-web</artifactId>
    </dependency>
  </dependencies>

</project>

aplication.yml

server:
 port: 9001
eureka:
 instance:
  hostname: eureka9001.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 表示自己就是注册中心我的职责就是维护服务实例，并不需去检查服务
  fetch-registry: false
  service-url:
   # 集群就是指向其他eureka 单机就是指向自己	
   #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
   defaultZone: http://eureka9001.com:9001/eureka/
  server:
   #关闭自我保护机制，保证不可用服务被及时踢除
   enable-self-preservation: false
   eviction-interval-timer-in-ms: 2000

3.启动类

@SpringBootApplication
@EnableEurekaServer
public class Eureka9001 {
  public static void main(String[] args) {
    SpringApplication.run(Eureka9001.class,args);
  }
}

去电脑C:\Windows\System32\drivers\etc 里在hosts 文件

如果找不到,把隐藏文件显示出来就行了

搭建客户端 cloud-provider-8001 注册到9001

依旧先写入pom文件

1.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">
  <parent>
    <artifactId>cloudstudy</artifactId>
    <groupId>com.tyy.springcloud</groupId>
    <version>1.0-SNAPSHOT</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>

  <artifactId>cloud-provider-8001</artifactId>
   <dependencies>
   <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>

    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
   </dependencies>
</project>

2.application.yml

server:
 port: 8001

spring:
 application:
  name: cloud-dept-service
 datasource:
  username: root
  password: root
  url: jdbc:mysql://localhost:3306/db2020?useUnicode=true&characterEncoding-utr-8&useSSL=false
  driver-class-name: com.mysql.jdbc.Driver

eureka:
 client:
  # 表示是否将自己注册到EurekaServer 默认true
  register-with-eureka: true
  service-url:
    defaultZone: http://eureka9001.com:9001/eureka/
 instance:
  instance-id: 8001
  prefer-ip-address: true    #访问路径显示ip地址


mybatis-plus:
 configuration:
  log-impl: org.apache.ibatis.logging.stdout.StdOutImpl

3.启动类

@SpringBootApplication
@EnableEurekaClient
public class DeptMain8001 {
  public static void main(String[] args) {
    SpringApplication.run(DeptMain8001.class,args);
  }
}

测试

是不是很简单呢 启动时 要先启动注册中心 再启动客户端

这样就算搭建好啦~!

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