一, 简介

在分布式系统中, 由于服务数量巨多, 为了方便服务配置文件统一管理, 实时更新, 所以需要分布式配置中心组件.

在 spring cloud 中, 有分布式配置中心组件spring cloud config, 它支持配置文件放在配置服务的本地内存中, 也支持放在远程Git仓库中.

在 spring cloud config 组件中, 分两个角色, 一是 config-server , 二是 config-client .

二, 创建 config-server 配置中心服务 cloud-f

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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.gy.cloud</groupId>
        <artifactId>cloud</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <artifactId>cloud-f</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>
    <name>${project.artifactId}</name>
    <description>Demo project for Spring Cloud Config</description>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-server</artifactId>
        </dependency>

        <!-- 配置中心也可加入子服务,进入注册中心注册 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

    </dependencies>

</project>

2, application.yml

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8761/eureka/

server:
  port: 8766

spring:
  application:
    name: config-server

  # Git 仓库配置
  cloud:
    config:
      # Git 代码分支
      label: master
      server:
        git:
          # Git 仓库地址
          uri: https://gitee.com/ge.yang/SpringBoot/
          # 配置文件存放目录
          search-paths: src/main/resources/config
          # Git 仓库账号密码
          username:
          password:

3, CloudFApplication

@EnableConfigServer 证明此服务是配置中心

package com.gy.cloud.cloudf;

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

@EnableConfigServer
@EnableDiscoveryClient
@SpringBootApplication
public class CloudFApplication {

    public static void main(String[] args) {
        SpringApplication.run(CloudFApplication.class, args);
        System.out.println("=== 配置服务F启动成功 ===");
    }
}

4, 启动 cloud-f

配置文件信息:

SpringCloud(Finchley版)5 - Config-Server-LMLPHP

访问 : http://localhost:8766/testUsername/dev

{"name":"testUsername","profiles":["dev"],"label":null,"version":"f2f23650522db4787e8a2a7d3b030058a8598899","state":null,"propertySources":[]}

访问 : http://localhost:8766/config-client-dev.properties

testPassword: Hello World
testUsername: 123456789

证明配置中心搭建成功 !

三, 总结

注意 application.yml 中 Git仓库配置的地址与路径

ge洋