springcloud之eureka集群

╰+哭是因爲堅強的太久メ 2023-07-22 14:29 24阅读 0赞

## eureka集群 ##

就是复制多个端口，在配置文件里面配置不同关联

## 7001 端口 ##

pom文件

<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka-server</artifactId>
            <version>1.4.6.RELEASE</version>
        </dependency>
        
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <version>2.1.8.RELEASE</version>
        </dependency>

yaml配置

server:
      port: 7001
      #Eureka配置
    eureka:
      instance:
        hostname: eureka7001.com #eureka服务端的实例名字
      client:
        register-with-eureka: false #表示是否向eureka注册中心注册自己
        fetch-registry: false #fetch-registry如果为false，则表示自己为注册中心
        service-url: #监控页面
          defaultZone: http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/

主启动类

@SpringBootApplication
    @EnableEurekaServer  //eureka
    public class EurekaServer_7001 {
        
        public static void main(String[] args) {
        
            SpringApplication.run(EurekaServer_7001.class,args);
        }
    }

## 7002端口 ##

pom依赖和主启动类和7001一致，就是yaml配置文件有些差异  
yaml 配置

server:
      port: 7002
      #Eureka配置
    eureka:
      instance:
        hostname: eureka7002.com #eureka服务端的实例名字
      client:
        register-with-eureka: false #表示是否向eureka注册中心注册自己
        fetch-registry: false #fetch-registry如果为false，则表示自己为注册中心
        service-url: #监控页面
          defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7003.com:7003/eureka/

## 7003端口 ##

同样，也是只有yaml配置文件有些差异  
yaml配置

server:
      port: 7003
      #Eureka配置
    eureka:
      instance:
        hostname: eureka7003.com #eureka服务端的实例名字
      client:
        register-with-eureka: false #表示是否向eureka注册中心注册自己
        fetch-registry: false #fetch-registry如果为false，则表示自己为注册中心
        service-url: #监控页面
          defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/

## 8001端口 ##

这个是服务提供者  
pom依赖

<dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-eureka</artifactId>
                <version>1.4.6.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>

yaml配置

server:
      port: 8001
      #mybatis配置
    #mybatis配置
    mybatis:
      type-aliases-package: com.xiao.springcloud.pojo
      #config-location: classpath:mybatis/mybatis-config.xml
      mapper-locations: classpath:mybatis/mapper/*.xml
    
    
    #spring的配置
    spring:
      application:
        name: springcloud-provider-dept
      datasource:
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: org.gjt.mm.mysql.Driver
        url: jdbc:mysql://localhost:3306/db01?useUnicode=true&characterEncoding=utf-8
        username: root
        password: 123456
    
        #eureka配置
    eureka:
      client:
        service-url:
          defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/
      instance:
        instance-id: springcloud-provider-dept8001  #修改eureka中的默认描述
    info:
      app.name: liuxiao-springcloud
      company.name: com.xiao

主启动类

@SpringBootApplication
    @EnableEurekaClient //自动在服务启动后自动注册到eureka中
    @EnableDiscoveryClient  //获取服务
    public class DeptProvider {
        
        public static void main(String[] args) {
        
            SpringApplication.run(DeptProvider.class,args);
        }
    }

访问的时候，先开启700端口，最后开启8001端口，访问`http://eureka7001.com:7001/eureka/`即可访问到数据，里面也会把我们配置的7002，7003，都扫描到