如何使用nacos作为配置中心

安装与启动参考地址

https://github.com/alibaba/nacos/releases
https://nacos.io/zh-cn/docs/deployment.html

登录账户/密码(默认)

nacos/nacos

空间的配置

bootstrap.yaml

#springboot集成的nacos配置信息
server:
  port: 8080
spring:
  application:
    name: nacos-config-client
  profiles:
    active: dev
  cloud:
    nacos:
      discovery:
        # Nacos服务注册中心地址
        server-addr: http://114.132.210.77:8848
      config:
        # 指定Nacos配置中心的地址
        server-addr: http://114.132.210.77:8848
        file-extension: yaml # 指定yaml格式的配置 默认properties
        #命名空间名称
        namespace: d03feac1-001d-422e-934e-e5f7471f6a7f
        #组名
        group: DEFAULT_GROUP

package top.arhi.controller;

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

@RestController
//@RefreshScope注解作用就是当nacos中的配置文件更新的时候，同步更新到代码中
@RefreshScope
public class ConfigClientController {
    @Value("${config.info}")
    private String configInfo;

    @GetMapping("/config/info")
    public String getConfigInfo() {
        return configInfo;
    }
}

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>
    <groupId>top.arhi</groupId>
    <artifactId>spring-cloud-nacos-config</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>spring-cloud-nacos-config</name>
    <description>spring-cloud-nacos-config</description>

    <!--spring boot 环境 -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.6.RELEASE</version>
        <relativePath/>
    </parent>


    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <!--spring cloud 版本-->
        <spring-cloud.version>Greenwich.RELEASE</spring-cloud.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>
            <version>2.2.6.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
    </dependencies>


    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>