Springcloud alibaba nacos配置中心

一、環境

Windows10
JDK8
SpringCloud：Hoxton.SR1
SpringBoot：2.2.2.RELEASE
spring-cloud-alibaba-dependencies：2.1.0.RELEASE
Nacos-server：1.2.0

二、環境搭建

建立專案 nacos-config
nacos-config pom.xml 配置檔案

<?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>com.alibaba</groupId>
        <artifactId>nacos-server</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <relativePath/>
    </parent>
    <groupId>com.alibaba</groupId>
    <artifactId>config</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>config</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.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>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

配置檔案優先順序別：
bootstrap.yml>application.yml
才坑點：
Springboot Springcloud Springcloud alibaba這些依賴版本一定要對應，記得引入jar包依賴，否則Springboot 無法載入bootstrap.yml配置檔案，預設application.yml配置

 <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-context</artifactId>
        </dependency>

建立 bootstrap.yml配置

server:
  port: 3377
spring:
  application:
    name: nacos-config
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848
      config:
        server-addr: localhost:8848
        file-extension: yaml
  profiles:
    active: dev

配置檔案命名

#專案名-開發環境.檔案屬性
${spring.application.name}-${spring.profile.active}.${spring.cloud.nacos.config.file-extension}

登入 http://localhost:8848/nacos/index.html#/login 賬號密碼都是 nacos
配置專案檔案

建立測試型別

package com.alibaba.config.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
public class ConfigClientController {
    @Value("${config}")
    private String configInfo;

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

啟動專案

package com.alibaba.config;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@EnableDiscoveryClient
@SpringBootApplication

public class ConfigApplication {

    public static void main(String[] args) {
        SpringApplication.run(ConfigApplication.class, args);
    }

}

測試結果

原始碼下載 nacos-server 下載地址：https://gitee.com/love13/nacos-server.git