<!--注冊(cè)中心的依賴-->
<dependency>
    <groupId>com.alibaba.boot</groupId>
    <artifactId>nacos-discovery-spring-boot-starter</artifactId>
    <version>0.2.3</version>
</dependency>
<!-- 配置中心的依賴 -->
<dependency>
    <groupId>com.alibaba.boot</groupId>
    <artifactId>nacos-config-spring-boot-starter</artifactId>
    <version>0.2.3</version>
</dependency>

import com.alibaba.nacos.spring.context.annotation.config.NacosPropertySource;
import com.alibaba.nacos.spring.context.annotation.discovery.EnableNacosDiscovery;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
@EnableNacosDiscovery //注冊(cè)中心注解 使用nacos
@NacosPropertySource(dataId = "product_config",autoRefreshed = true) //配置中心注解：autoRefreshed 代表自動(dòng)刷新注解
public class NacosdemoApplication {
    public static void main(String[] args) {
        SpringApplication.run(NacosdemoApplication.class, args);
    }
}
 

import com.alibaba.nacos.api.annotation.NacosInjected;
import com.alibaba.nacos.api.exception.NacosException;
import com.alibaba.nacos.api.naming.NamingService;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import javax.annotation.PostConstruct;
/**
 * @program: NacosDemo
 * @description: NacosConfig
 **/
@Configuration
public class NacosConfig {
    @Value("${server.port}")
    private int serverPort;
    @Value("${spring.application.name}")
    private String applicationName;
    @NacosInjected
    private NamingService namingService;
    @PostConstruct
    public void registerInstance() throws NacosException {
        namingService.registerInstance(applicationName, "127.0.0.1", serverPort);
    }
}
 

import com.alibaba.nacos.api.config.annotation.NacosValue;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
 * ConfigController 配置控制器
 * @description: ConfigController
 **/
@RestController
@RequestMapping("/test")
public class ConfigController {
    @NacosValue(value = "${productName}",autoRefreshed = true)
    private  String productName;
    @RequestMapping("/productName")
    public String getProductName(){
        return productName;
    }
}