nacos作为配置中心 动态刷新（基础配置）

1.pom

  <!--nacos-config-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
        <!--nacos-discovery-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

2.yml

bootstrap的优先级大于application

application.yml

spring:
  profiles:
    active: dev # 表示开发环境
    #active: test # 表示测试环境
    #active: info

bootstrap.yml

# nacos配置
server:
  port: 3377

spring:
  application:
    name: nacos-config-client
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848 #Nacos服务注册中心地址
      config:
        server-addr: localhost:8848 #Nacos作为配置中心地址
        file-extension: yaml #指定yaml格式的配置



# ${spring.application.name}-${spring.profile.active}.${spring.cloud.nacos.config.file-extension}
# nacos-config-client-dev.yaml

# nacos-config-client-test.yaml   ----> config.info

3.在nacos创建配置

4.业务类

@RestController
@RefreshScope //支持Nacos的动态刷新功能。
public class ConfigClientController
{
    
    
    @Value("${config.info}")
    private String configInfo;

    @GetMapping("/config/info")
    public String getConfigInfo() {
    
    
        return configInfo;
    }
}

5.主启动类

@EnableDiscoveryClient
@SpringBootApplication
public class NacosConfigClientMain3377
{
    
    
    public static void main(String[] args) {
    
    
        SpringApplication.run(NacosConfigClientMain3377.class, args);
    }
}