读取nacos的配置

nacos: 2.5.1
java: 17
spring boot: 3.3.9
maven: 3.8.1
spring cloud alibaba: 2023.0.3.2

1.pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.3.9</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>cn.xxx</groupId>
    <artifactId>nacos-config-test</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>nct</name>
    <description>nct</description>
    <url/>
    <licenses>
        <license/>
    </licenses>
    <developers>
        <developer/>
    </developers>
    <scm>
        <connection/>
        <developerConnection/>
        <tag/>
        <url/>
    </scm>
    <properties>
        <java.version>17</java.version>
        <alibaba.version>2023.0.3.2</alibaba.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

2.nacos上面添加配置文件test.yml，类型选择yaml

test:
    name: 张三

3.本地配置文件application.yml

spring:
  application:
    name: demo
  config:
    import: optional:nacos:test.yml
  cloud:
    nacos:
      config:
        server-addr: nacos服务器的IP地址:8848
        namespace: 命名空间ID(Namespace ID)
      username: 登陆nacos的账号
      password: 登陆nacos的密码

3.TestController读取配置的name值

import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RefreshScope //动态监听nacos里面的配置变化
@RestController
public class TestController {
    @Value("${test.name}")
    private String name;
    @GetMapping("/hi")
    public ResponseEntity hi(){
        return ResponseEntity.ok(name);
    }
}