<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-dependencies</artifactId>
    <version>Greenwich.SR2</version>
    <type>pom</type>
    <scope>import</scope>
</dependency>

<!--配置中心pom-->
    <dependency>
      <groupId>com.alibaba.cloud</groupId>
      <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
      <version>${alibaba-nacos-config.version}</version>
    </dependency>
 
<!--服務(wù)發(fā)現(xiàn)pom-->
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
      <version>${alibaba-nacos-discovery.version}</version>
    </dependency>

<dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid-spring-boot-starter</artifactId>
      <version>${druid.version}</version>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysql.conn.version}</version>
    </dependency>

spring:
 application:
  name: order-server
 profiles:
  active: dev
 cloud:
  nacos:
   config:
    server-addr: 10.0.0.51:8848 # 配置中心nacos的地址
    file-extension: yml # 配置文件后綴（格式）
    group: business-app # 分組名稱
    namespace: ${spring.profiles.active} # 命令空間，可以用來(lái)區(qū)分不同的環(huán)境
   discovery:
    server-addr: 10.0.0.51:8848 # 服務(wù)發(fā)現(xiàn)地址nacos的地
    namespace: ${spring.profiles.active}

Ignore the empty nacos configuration and get it based on dataId[order-server.yml] & group[business-app]
2020-09-16 14:05:07.053 WARN 27342 --- [      main] c.a.c.n.c.NacosPropertySourceBuilder   : Ignore the empty nacos configuration and get it based on dataId[order-server-dev.yml] & group[business-app]
2020-09-16 14:05:07.053 INFO 27342 --- [      main] b.c.PropertySourceBootstrapConfiguration : Located property source: CompositePropertySource {name='NACOS', propertySources=[NacosPropertySource {name='order-server-dev.yml,business-app'}, NacosPropertySource {name='order-server.yml,business-app'}, NacosPropertySource {name='order-server,business-app'}]}
2020-09-16 14:05:07.077 INFO 27342 --- [      main] com.order.OrderApplication        : The following profiles are active: dev

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