SpringCloud系列（8）--将服务提供者Provider注册进Eureka Server

前言：上一章节我们介绍了Eureka服务端的安装与配置，本章节则介绍关于微服务如何入职Eureka Server

Eureka架构原理图

1、修改provider-payment8001子模块的pom.xml文件，引入Eureka Clinet的依赖，然后reolad一下，下载依赖

例：

<?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>springcloud01</artifactId><groupId>com.ken.springcloud</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>provider-payment8001</artifactId><dependencies><!--以下依赖都没写版本号，没写版本号的情况下会引用父项目的版本--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!--监控--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId></dependency><!--Mybatis和SpringBoot的整合--><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId></dependency><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId></dependency><!--mysql-connector-java--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><!--jdbc--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-jdbc</artifactId></dependency><!--热部署--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-devtools</artifactId><scope>runtime</scope><optional>true</optional></dependency><!--lombok插件--><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!--引入自己定义的api调用包，可以使用Payment模块的entity--><dependency><groupId>com.ken.springcloud</groupId><artifactId>api-commons</artifactId><version>${project.version}</version></dependency><!--Eureka Clinet--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-eureka-client</artifactId></dependency></dependencies></project>

2、修改provider-payment8001子模块的application.yml文件配置的内容，将Eureka相关配置引入

#服务端口号
server:port: 8001#服务名称
spring:application:name: cloud-payment-servicedatasource:type: com.alibaba.druid.pool.DruidDataSource      #当前数据源操作类型driver-class-name: com.mysql.cj.jdbc.Driver       #mysql驱动包（mysql驱动包版本是5的要写成com.mysql.jdbc.Driver）url: jdbc:mysql://localhost:3306/cloud?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=GMT%2B8 #mysql连接路径，记得把cloud这个数据库名改成自己的，或者新建名为cloud的数据库username: rootpassword: 123456eureka:client:#表示是否将自己注册进Eureka Server里，默认为trueregister-with-eureka: true#是否从Eureka Server抓取已有的注册信息，默认为true，单节点无所谓，集群必须设置为true才能配合ribbon使用负载均衡fetch-registry: trueservice-url:defaultZone: http://localhost:7001/eureka#mybatis配置
mybatis:mapper-locations: classpath:mapper/*.xml            #扫描类路径下的mapper文件夹下所有的.xml配置文件type-aliases-package: com.ken.springcloud.entities  #该包下的所有Entity类都取默认别名

效果图：

3、修改provider-payment8001子模块的主启动类，将provider-payment8001子模块标注为Eureka Client

package com.ken.springcloud;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;@SpringBootApplication
//标注为Eureka Client（服务注册中心）
@EnableEurekaClient
public class PaymentMain {public static void main(String[] args) {SpringApplication.run(PaymentMain.class, args);}
}

效果图：