Eureka client 开发

eureka client在实际中相当于是我们具体的微服务，这些微服务，它可能是生产者，也就是对外提供服务，它可能是另一个服务的调用者，即消费者。比如用户服务，订单服务，商品服务等等，我们这里随意创建一个用户服务，将其注册到eureka server

1、创建子maven项目 springcloud_02_UserService，继承第一节的springcloud_parent，POM 依赖如下：

<?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>springcloud_parent</artifactId>
        <groupId>com.wyp</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>springcloud_02_UserService</artifactId>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencies>

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

        <!--eureka client依赖-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            <version>2.2.1.RELEASE</version>
        </dependency>

    </dependencies>

</project>

2、在application.properties中添加配置

server.port=8081
spring.application.name=USERSERVICE
eureka.client.service-url.defaultZone=http://localhost:8761/eureka

3、在启动类上添加注解@EnableEurekaClient

@SpringBootApplication
@EnableEurekaClient
public class UserServiceApplication {

    public static void main(String[] args) {
        SpringApplication.run(UserServiceApplication.class,args);
    }

}