工具:

JDK 8

MAVEN

STS

沿用之前配置的Eureka注册中心

具体步骤如下:

一 : 新建boot项目

file ---> new Spring starter project

点击Next之后选择可以自己选择要引入的包,这边选择Eureka和web

pom:

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

<!-- eureka -->
<dependency>
	<groupId>org.springframework.cloud</groupId>
	<artifactId>spring-cloud-starter-eureka</artifactId>
</dependency>

二 : 在Application启动类上新增注解

package cn.sh.daniel;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@SpringBootApplication
@EnableDiscoveryClient  ##开启自动注册
public class CloudShopUserserviceApplication {

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

三 : 配置application.yml

server:
  port: 8088
  
spring:
  application:
    name: cloud-shop-userservice
    
eureka:
  client:
    service-url:
      defaultZone: http://daniel-cloud-shop-eureka:eureka123123@server1:9001/eureka/,http://daniel-cloud-shop-eureka:eureka123123@server2:9002/eureka/
  

四 : 新增一个rest接口对外提供服务

package cn.sh.daniel.controller;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import cn.sh.daniel.entity.User;

@RestController
@RequestMapping("/user")
public class UserController {

	/**
	 * 根据ID查询用户信息
	 * 2018年1月18日
	 */
	@GetMapping("/{id}")
	public User findUserById(@PathVariable("id")Long id) {
		User user= new User();
		user.setId(id);
		user.setName("Spring Cloud User service");
		user.setPassword("123123");
		return user;
	}
}

五 : 新增User实体

package cn.sh.daniel.entity;

public class User {
	private Long id;
	private String name;
	private String password;
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
}

六 : 启动服务,查看Eureka Server的面板,成功注册到服务上

七 : 访问cloud-shop-userservice

可以正常的提供服务,下面我们来实现Feign来调用服务