1、创建模块

创建Module:cloudalibaba-config-nacos-client3377

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    <dependencies>
        <!--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>
        <!--web + actuator-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <!--一般基础配置-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

2、编写配置文件

application.yml

spring:
  profiles:
    active: dev

bootstrap.yml

server:
  port: 3377

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

3、主启动类

NacosConfigClientMain3377.java

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

@EnableDiscoveryClient服务注册发现

4、业务接口

ConfigClientController.java

@RestController
@RefreshScope
public class ConfigClientController
{
    @Value("${config.info}")
    private String configInfo;

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

@RefreshScope配置文件自动刷新

5、Nacos配置

访问官网https://nacos.io/zh-cn/docs/quick-start-spring-cloud.html,查看手册,看如何描述Date id以及一些列配置方式

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6、启动测试

启动3377
访问http://localhost:3377/config/info

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