Spring cloud（2）B Eureka 注册微服务到服务中心

1.在provide上添加pom（必须加上web）   如果不加 启动后就会自己关闭

    　　<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            <version>2.1.1.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
            <version>2.1.1.RELEASE</version>
        </dependency>

    <dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
        <version>2.8.5</version>
    </dependency>

　　　　<dependency>
　　　　　　<groupId>org.springframework.boot</groupId>
　　　　　　<artifactId>spring-boot-starter-web</artifactId>
　　　　　　<version>2.1.3.RELEASE</version>
　　　　</dependency>

2. yml配置

server:
  port: 8001

eureka:
  client:     #客户端注册进eureka服务列表内
    service-url:
      defaultZone: http://localhost:7001/eureka

3. 启动类

package com.service;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

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

4. 修改主机映射名称

instance:
    instance-id: mmdept123

完整

eureka:
  client:     #客户端注册进eureka服务列表内
    service-url:
      defaultZone: http://localhost:7001/eureka
  instance:
    instance-id: mmdept123  #设置主机映射名称

5.修改ip

 prefer-ip-address: true

完整

server:
  port: 8001

eureka:
  client:     #客户端注册进eureka服务列表内
    service-url:
      defaultZone: http://localhost:7001/eureka
  instance:
    instance-id: mmdept123
    prefer-ip-address: true

spring:
  application:
    name: mm_dept

对比

#eureka01的配置信息
spring:
  application:
    name: eureka #spring应用名称我这里都使用的是eureka
server:
  port: 7001 #应用端口

eureka:
  instance:
    hostname: localhost #域名  可以修改hosts文件做域名映射
    prefer-ip-address: false #如果开启了此配置会导致集群不可用 （关闭或者不配置）
    instance-id: eureka
  client:
    register-with-eureka: false #是否要将自己注册进去
    fetch-registry: false #是否要被检索
    #eureka的访问路径,集群节点寻找时的地址信息,只需要配置其他两个节点的信息
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka
  server:
    eviction-interval-timer-in-ms: 30000 # 每隔30秒进行一次服务列表清理

6.完善info

provide添加pom

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-actuator</artifactId>
    <version>2.1.3.RELEASE</version>
</dependency>

总pom

<finalName>dept</finalName>
    <resources>
      <resource>
        <directory>src/main/resources</directory>
        <filtering>true</filtering>
      </resource>
    </resources>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-resources-plugin</artifactId>
        <configuration>
          <delimiters>
            <delimiter>$</delimiter>
          </delimiters>
        </configuration>
      </plugin>
    </plugins>

8001的application.yml中添加

info:
  app.name: mm123