SpringCloud接入nacos配置中心

版本选择

spring-cloud-Alibaba版本依赖关系

本文章，采用的 springboot 版本是 2.6.13，spring-cloud-alibaba 版本是 2021.0.5.0，Nacos 服务端的版本是 NACOS 2.0.4

官方整合文档：Nacos 融合 Spring Cloud，成为注册配置中心

注意：我这里只是整合了配置管理，没有整合服务发现！

项目搭建

pom.xml

<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>4.0.0modelVersion>
    <groupId>top.chenfugroupId>
    <artifactId>chenfu-miniappartifactId>
    <version>0.0.1-SNAPSHOTversion>
    <name>chenfu-miniappname>
    <description>chenfu-miniappdescription>
    <properties>
        <java.version>1.8java.version>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
        <spring-boot.version>2.6.13spring-boot.version>
        <spring-cloud-alibaba.version>2021.0.5.0spring-cloud-alibaba.version>
    properties>
    <dependencies>
        <dependency>
            <groupId>com.alibabagroupId>
            <artifactId>druid-spring-boot-starterartifactId>
            <version>1.2.23version>
        dependency>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>
        <dependency>
            <groupId>com.alibaba.cloudgroupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-configartifactId>
        dependency>
        <dependency>
            <groupId>org.mybatis.spring.bootgroupId>
            <artifactId>mybatis-spring-boot-starterartifactId>
            <version>2.2.2version>
        dependency>
        <dependency>
            <groupId>com.mysqlgroupId>
            <artifactId>mysql-connector-jartifactId>
            <scope>runtimescope>
        dependency>
        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <optional>trueoptional>
        dependency>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-testartifactId>
            <scope>testscope>
        dependency>
    dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-dependenciesartifactId>
                <version>${spring-boot.version}version>
                <type>pomtype>
                <scope>importscope>
            dependency>
            <dependency>
                <groupId>com.alibaba.cloudgroupId>
                <artifactId>spring-cloud-alibaba-dependenciesartifactId>
                <version>${spring-cloud-alibaba.version}version>
                <type>pomtype>
                <scope>importscope>
            dependency>
        dependencies>
    dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.pluginsgroupId>
                <artifactId>maven-compiler-pluginartifactId>
                <version>3.8.1version>
                <configuration>
                    <source>1.8source>
                    <target>1.8target>
                    <encoding>UTF-8encoding>
                configuration>
            plugin>
            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
                <version>${spring-boot.version}version>
                <configuration>
                    <mainClass>top.chenfu.ChenfuMiniappApplicationmainClass>
                    <skip>trueskip>
                configuration>
                <executions>
                    <execution>
                        <id>repackageid>
                        <goals>
                            <goal>repackagegoal>
                        goals>
                    execution>
                executions>
            plugin>
        plugins>
    build>

project>

本地的 application.yml

注意：spring.config.import 属性上已经开启了刷新配置项！此处配置的加载的是 Nacos 中的 chenfu-miniapp-dev.yml 配置文件。也是在这个属性上指定的。

spring:
  application:
    name: chenfu-miniapp
  profiles:
    active: dev
  cloud:
    nacos:
      config:
        file-extension: yml
        server-addr: localhost:8848
        namespace: chenfu_dev
  config:
    import: nacos:${spring.application.name}-${spring.profiles.active}.${spring.cloud.nacos.config.file-extension}?refresh=true

chenfu-miniapp-dev.yml 中的配置项

# 数据源配置
spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    druid:
      driver-class-name: com.mysql.cj.jdbc.Driver
      username: root
      password: root
      url: jdbc:mysql://localhost:3306/chenfu?characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=GMT%2B8&allowMultiQueries=true&allowPublicKeyRetrieval=true
  resources:
    static-locations: classpath:/static/,classpath:/views/
  servlet:
    multipart:
      location: /home
chenfu:
  config:
    v: sss

接收配置的实体类

@Data
@SpringBootConfiguration
@ConfigurationProperties(prefix = "chenfu.config")
public class PropertiesConfig {

    private String v;

}

至此整合完毕，启动就可以使用 Nacos 来管理配置文件了