基于spring-cloud搭建自己的配置中心

1.新建配置中心服务端项目 g2-spring-cloud-config-service

加入 pom依赖

<?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>

    <groupId>g2.com</groupId>
    <artifactId>g2-spring-cloud-config-service</artifactId>
    <version>1.0-SNAPSHOT</version>

    <name>g2-spring-cloud-config-service</name>
    <!-- FIXME change it to the project's website -->
    <url>http://g2.com</url>
    <parent>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-parent</artifactId>
        <version>Dalston.SR5</version>
        <relativePath/>
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>1.5.9.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-server</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <artifactId>maven-javadoc-plugin</artifactId>
                <version>2.9.1</version>
                <configuration>
                    <encoding>UTF-8</encoding>
                    <charset>UTF-8</charset>
                    <docencoding>UTF-8</docencoding>
                    <skip>true</skip>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

2.增加配置

server.port=8000
spring.application.name=g2-spring-cloud-config-service

spring.cloud.config.server.git.uri=http://192.168.1.20:8000/config-repo

spring.cloud.config.server.git.uri 地址是基于上一遍 git使用http访问的地址

3.启动类增加 @EnableConfigServer

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

/**
 * Hello world!
 *
 */
@SpringBootApplication
@EnableConfigServer
public class App {
    public static void main(String[] args) {
        SpringApplication springApplication = new SpringApplication(App.class);
        springApplication.run(args);
    }
}

4.在 git的仓库里增加 配置文件

向config-repo 仓库提交 g2-admin-dev.properties 文件

5.启动后访问 

http://127.0.0.1:8000/g2-admin/dev

不出意外是可以返回相应的配置信息的

6.普通项目( g2-admin)接入配置中心

增加/修改 bootstrap.properties 文件

spring.application.name=g2-admin
spring.profiles.active=dev
spring.cloud.config.uri=http://127.0.0.1:8000/
spring.cloud.config.enabled=true

pom文件增加 spring-cloud-config依赖

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-parent</artifactId>
                <version>Dalston.SR5</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    

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

正常启动会打印

2020-05-22 15:24:49.670  INFO 9112 --- [           main] c.c.c.ConfigServicePropertySourceLocator : Fetching config from server at: http://127.0.0.1:8000/
2020-05-22 15:24:50.085  INFO 9112 --- [           main] c.c.c.ConfigServicePropertySourceLocator : Located environment: name=g2-admin, profiles=[dev], label=null, version=afeb7ac1bf30512bf5fddcfd2e904360c10d05e6, state=null
2020-05-22 15:24:50.085  INFO 9112 --- [           main] b.c.PropertySourceBootstrapConfiguration : Located property source: CompositePropertySource [name='configService', propertySources=[MapPropertySource {name='configClient'}, MapPropertySource {name='http://192.168.1.20:8000/config-repo/g2-admin-dev.properties'}]]
2020-05-22 15:24:50.093  INFO 9112 --- [           main] com.g2.admin.App                      : The following profiles are active: dev