springcloud config demo搭建

朴灿烈づ我的快乐病毒、 2023-02-18 09:38 4阅读 0赞

# springcloud config demo #

## 服务端搭建 ##

**新建远程git仓库，保存配置，并将仓库拉到本地，以后更新配置可在本地更新，在push到远程仓库**

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTkyMjI4OQ_size_16_color_FFFFFF_t_70]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTkyMjI4OQ_size_16_color_FFFFFF_t_70 1]

**新建3355配置中心模块**

添加依赖：

<dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-config-server</artifactId>
            </dependency>

主启动开启配置：

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

yaml配置文件：

server:
      port: 3355
    
    spring:
      application:
        name: cloud-config-center
      cloud:
        config:
          server:
            git:
              #uri: #Github上的git仓库名字
              uri: https://gitee.com/kevin_cai_ren/springcloud-config.git
              ##搜索目录.这个目录指的是github上的目录
              search-paths:
                - springcloud-config
              username: XXXXXX@qq.com
              password: XXXXXX
          ##读取分支
          label: master
    
    eureka:
      client:
        service-url:
          defaultZone: http://eureka7779.com:7779/eureka/

**启动服务拉取配置**

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTkyMjI4OQ_size_16_color_FFFFFF_t_70 2]

## 客户端搭建 ##

引入依赖：

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

修改配置文件，注意，这里使用的是bootstrap.yml，原因是bootstrap是系统级配置文件，优先级高于application.yml

server:
      port: 3366
    
    spring:
      application:
        name: config-client
      cloud:
        #Config客户端配置
        config:
          label: master #分支名称
          name: config #配置文件名称
          profile: dev #读取后缀名称 上诉3个综合就是 master分支上 config-dev.yml
          uri: http://config-3355.com:3355 # 配置中心地址
    
    eureka:
      client:
        service-url:
          defaultZone:  http://eureka7779.com:7779/eureka/

主启动：

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

**@Value注解读取配置**

@RestController
    public class TestController {
        
    
        @Value("${config.info: test}")//读远程配置，:后边是默认值
        private String info;
    
        @RequestMapping("/get")
        public Object get(){
        
            return info;
        }
    }

测试：

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTkyMjI4OQ_size_16_color_FFFFFF_t_70 3]

但是存在一个问题，如果我修改了远程配置仓库的配置，发现客户端读取的到配置并没有立马更新，得重启一次才行。

解决：

**采取动态刷新**

引入监控依赖：

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

修改yml暴露监控端点：

#暴露监控端点
    management:
      endpoints:
        web:
          exposure:
            include: "*"

在读取配置的类上新增注解@RefreshScope

@RestController
    @RefreshScope
    public class TestController {
        
    
        @Value("${config.info: test}")//读远程配置，:后边是默认值
        private String info;
    
        @RequestMapping("/get")
        public Object get(){
        
            return info;
        }
    }

ok，这样就实现了动态刷新，需要两个步骤：

*  git修改配置
 *  发送一个post请求，请求地址：http://localhost:3366/actuator/refresh

这样就可以是实现半自动更细hhh

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTkyMjI4OQ_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200617005829132.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTkyMjI4OQ==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTkyMjI4OQ_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200617013217390.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTkyMjI4OQ==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTkyMjI4OQ_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20200617013201483.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTkyMjI4OQ==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTkyMjI4OQ_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20200617015041783.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTkyMjI4OQ==,size_16,color_FFFFFF,t_70