一、构建Config Client

 1.创建一个spring-boot项目，取名为microservicecloud-config-client其pom.xml:

<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/maven-v4_0_0.xsd">
    <parent>
        <artifactId>mall</artifactId>
        <groupId>com.linjia</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>microservicecloud-config-client</artifactId>
    <packaging>maven-plugin</packaging>
    <name>microservicecloud-config-client</name>
    <url>http://maven.apache.org</url>
    <dependencies>
        <!-- SpringCloud Config客户端 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-hystrix</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jetty</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>springloaded</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
    </dependencies>
</project>

2.bootstrap.yml 配置

spring:
  cloud:
    config:
      name: microservicecloud-config-client #需要从github上读取的资源名称，注意没有yml后缀名,https://github.com/yangliuwilow/springcloud-config目录下的文件
      profile: dev   #本次访问的配置项
      label: master   
      uri: http://localhost:3344  #本微服务启动后先去找3344号服务，通过SpringCloudConfig获取GitHub的服务地址
 

#application.yml 是用户级别的资源配置，
#bootstarp.yml 是系统级别的，优先级别更高；

3.application.yml 配置

spring:
  application:
    name: microservicecloud-config-client

4.在github springcloud-config中创建 microservicecloud-config-client.yml配置文件（和bootstrap.yml中spring.cloud.config.name对应）

spring: 
   profiles: 
     active: 
     - dev

---
server: 
  port: 8201
  
spring:
   profiles: dev  #开发环境
   application: 
     name: microservicecloud-config-client
eureka:
  client: 
    service-url:
       defaultZone: http://springCloudEureka7001.com:7001/eureka/
      
     
---
server: 
  port: 8202
  
spring:
   profiles: test  #测试环境
   application: 
     name: microservicecloud-config-client
eureka:
  client: 
    service-url:
       defaultZone: http://springCloudEureka7001.com:7001/eureka/test
  

5.启动类

package com.linjia.springcloud;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class ConfigClient_3355_StartSpringCloudApp
{
	public static void main(String[] args)
	{
		SpringApplication.run(ConfigClient_3355_StartSpringCloudApp.class, args);
	}
}

6.创建Controller，获取配置信息

package com.linjia.springcloud.rest;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class ConfigClientRestController
{

	@Value("${spring.application.name}")
	private String applicationName;

	@Value("${eureka.client.service-url.defaultZone}")
	private String eurekaServers;

	@Value("${server.port}")
	private String port;

	@RequestMapping("/config")
	public String getConfig()
	{
		String str = "applicationName: " + applicationName + "\t eurekaServers:" + eurekaServers + "\t port: " + port;
		System.out.println("******str: " + str);
		return "applicationName: " + applicationName + "\t eurekaServers:" + eurekaServers + "\t port: " + port;
	}
}

启动，config-server(上一篇文章)，config-client

访问：http://localhost:8201/config

applicationName: microservicecloud-config-client	eurekaServers:http://springCloudEureka7001.com:7001/eureka/	port: 8201

 profile: test