1、增加依赖

<!--配置管理的依赖 -->
<dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId><version>2.1.0.RELEASE</version>
</dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-bootstrap</artifactId><version>4.1.4</version>
</dependency>

2、创建bootstrap.yaml文件

spring:application:name: user-serviceprofiles:active: dev
# 数据库配置迁移到了nacos
#  datasource:
#    driver-class-name: com.mysql.cj.jdbc.Driver
#    url: jdbc:mysql://localhost:3306/springcloud
#    username: root
#    password: 123456cloud:nacos:discovery:server-addr: 127.0.0.1:8848config:server-addr: 127.0.0.1:8848file-extension: yaml #文件后缀名

3、在nacos创建配置

4、重启服务成功

5、拉取nacos的多个配置文件

spring:application:name: user-service
# redis配置迁移到了nacos
#  redis:
#    host: 127.0.0.1
#    port: 6379
#    password:
#    database: 0
server:port: 8083servlet:context-path: /user-service
# mybatis的配置迁移到了nacos
#mybatis-plus:
#  configuration:
#    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl #开启sql日志
logging:level:com.niuniu.user.feignclient.OrderClient: debug

将mybatis和redis的配置迁移到nacos，对应

bootstarp.yaml如下

spring:application:name: user-serviceprofiles:active: dev
# 数据库配置迁移到了nacos
#  datasource:
#    driver-class-name: com.mysql.cj.jdbc.Driver
#    url: jdbc:mysql://localhost:3306/springcloud
#    username: root
#    password: 123456cloud:nacos:discovery:server-addr: 127.0.0.1:8848config:server-addr: 127.0.0.1:8848file-extension: yaml #文件后缀名shared-dataids: shared-redis.yaml,shared-mybatis.yaml

添加了shared-dataids: shared-redis.yaml,shared-mybatis.yaml

重启成功！