pom配置

<properties>
        <java.version>1.8</java.version>
        <nacos-config-spring-boot.version>0.2.1</nacos-config-spring-boot.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>com.alibaba.boot</groupId>
            <artifactId>nacos-config-spring-boot-starter</artifactId>
            <version>${nacos-config-spring-boot.version}</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.boot</groupId>
            <artifactId>nacos-config-spring-boot-actuator</artifactId>
            <version>${nacos-config-spring-boot.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>RELEASE</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>

启动类配置

@SpringBootApplication
@NacosPropertySource(dataId = "demo",autoRefreshed = true)
public class NacosConfigApplication {

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

}

controller配置

@RestController
@RequestMapping("config")
public class ConfigController {
    @NacosValue(value = "${testFlag}",autoRefreshed = true)
    private boolean testFlag;

    @RequestMapping(value = "/flag",method = GET)
    public boolean fetchFlag() {
        return testFlag;
    }
}