10.Spring Cloud Config

Spring Cloud Config

1.说明

配置管理工具包，让你可以把配置放到远程服务器，集中化管理集群配置，目前支持本地存储、Git以及Subversion。

2.创建配置仓库microservicecloud-config,添加配置文件

spring:
  profiles:
    active:
    - dev
---
spring:
  profiles: dev     #开发环境
  application: 
    name: microservicecloud-config-dev
---
spring:
  profiles: test   #测试环境
  application: 
    name: microservicecloud-config-test

3.创建Config Server端 3.1 添加依赖

	<!-- springCloud Config -->
	<dependency>
		<groupId>org.springframework.cloud</groupId>
		<artifactId>spring-cloud-config-server</artifactId>
	</dependency>
	<!-- 避免Config的Git插件报错：org/eclipse/jgit/api/TransportConfigCallback -->
	<dependency>
		<groupId>org.eclipse.jgit</groupId>
		<artifactId>org.eclipse.jgit</artifactId>
		<version>4.10.0.201712302008-r</version>
	</dependency>

3.2 相关配置

server:
  port: 3344
  
spring:
  application:
    name: microservicecloud-config
  cloud:
    config:
      server:
        git:
          uri: https://github.com/wang125631/microservicecloud-config.git
          username: wang125631
          #password: ********* 

3.3测试连接

4.Config 客户端 4.1 客户端依赖

	<!-- SpringCloud Config客户端 -->
	<dependency>
		<groupId>org.springframework.cloud</groupId>
		<artifactId>spring-cloud-starter-config</artifactId>
	</dependency>

4.2 客户端配置 bootstrap.yml

#bootstrap.yml 是系统的配置项,优先级别更高 如:在bootstrap.yml中指定端口,再在application.yml中指定,application.yml文件中端口不会生效
spring:
  cloud:
    config:
      name: microservicecloud-config-client  #需要从github上读取的资源名称
      profile: dev #本次访问的配置项
      label: master
      uri: http://localhost:3344 #服务启动通过3344间接与github获取连接 

application.yml

spring:
  application:
    name: microservicecloud-config-client

5.客户端控制层获取配置信息

	@RestController
	public class ConfigClientRest {

	@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;
	}
	}

6.主启动类启动测试

	@SpringBootApplication
	public class ConfigClient3355_App {

	public static void main(String[] args) throws Exception {
		SpringApplication.run(ConfigClient3355_App.class, args);
	}

   }