spring boot 3.0.1多模块项目使用nacos动态配置

news2024/12/23 8:43:47

根pom文件增加，spring-cloud-alibaba包管理，注意版本spring-boot 3.0.3，spring-cloud-alibaba 2022.0.0.0-RC1

<?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>3.0.1</version>
        <relativePath/>
    </parent>
    <groupId>com.dashu</groupId>
    <artifactId>technology</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>technology</name>
    <description>technology</description>
    <packaging>pom</packaging>
    <properties>
        <java.version>17</java.version>
        <version>0.0.1-SNAPSHOT</version>
        <alibaba-cloud.version>2022.0.0.0-RC1</alibaba-cloud.version>
    </properties>
    <modules>
        <module>start</module>
        <module>api</module>
        <module>service</module>
        <module>infrastructure</module>
    </modules>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.dashu</groupId>
                <artifactId>api</artifactId>
                <version>${version}</version>
            </dependency>
            <dependency>
                <groupId>com.dashu</groupId>
                <artifactId>infrastructure</artifactId>
                <version>${version}</version>
            </dependency>
            <dependency>
                <groupId>com.dashu</groupId>
                <artifactId>service</artifactId>
                <version>${version}</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${alibaba-cloud.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>
            </plugin>
        </plugins>
    </build>
</project>

在启动模块下加入依赖

    <!--nacos配置中心-->
    <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
    </dependency>
    <!--nacos服务注册中心-->
    <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
    </dependency>

如何安装nacos，直接参考官网就可以了https://nacos.io/docs/latest/quickstart/quick-start/
application.yml配置文件

spring:
  application:
    name: technology
  cloud:
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848
      config:
        server-addr: 127.0.0.1:8848
        file-extension: yml
  config:
    import:
      - nacos:${spring.application.name}

到nacos配置中心增加一个配置项technology.yml
启动项目，写个获取配置文件参数的测试类

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Component
@ConfigurationProperties(prefix = "sms")
@Data
public class SmsProperties {

    private String type;

    private String code;

}

@RestController
@RequestMapping("/index")
public class indexController {
    @Autowired
    private SmsProperties smsProperties;

    @GetMapping ("/nacos")
    public String nacosProperties(){
        return smsProperties.getType()+smsProperties.getCode();
    }
}